CN107428925A - Light guide plate formed body - Google Patents

Abstract

In accordance with the invention it is possible to provide containing the end structure having shown in following formulas (1), and viscosity average molecular weigh is the light guide plate injection molded article of 13,000~18,000 polycarbonate resin.

Description

Light guide plate formed body

Technical field

The present invention relates to the light guide plate formed body comprising polycarbonate resin.

Background technology

In recent years, in the various portable terminal devices such as smart mobile phone or panel type terminal, the thin-walled property of liquid crystal display and big Type thin-walled property is fast-developing.Accompany with this, the method that light guide plate is injected as light, used from the transformation of underface type from horizontal side The situation for the peripheral type that edge is carried out is more and more, as extra-thin light source be required sufficient brightness with it is further strong Degree.

If in addition, in the case of being equipped with the liquid crystal display of touch screen, even small-sized, the damage of light guide plate is prevented It is and important.Due to the load-carrying when being inputted such as input pen or finger, when touch screen surface is by exception big load, lead Crack or cracking can occur for tabula rasa, and the fine shape for lugs above light guide plate can sustain damage.

As a result, injury can light brightly in bright light, the identity of liquid crystal display significantly reduces.In order to Such damage is prevented, the intensity for improving light guide plate is important all the more.Particularly in the liquid crystal display of large screen, due to defeated Fashionable load-carrying, flexure is easily produced, therefore, the impact strength for improving light guide plate is particularly important.

In general, when manufacturing large-scale slim formed body by injection moulding using thermoplastic resin, in order to true Protect high transferability, it is necessary to improve the mobility of resin.It is this as a rule by the viscosity average molecular weigh low molecule amount of resin Change.However, if the molecular weight of resin is too small, the intensity of formed body can be insufficient, and in the demoulding, formed body easily ruptures.Cause This, the mobility that resin is improved by low molecule quantization is limited.

In addition, as long as the thermoplastic resin obtained by identical construction unit, just has glass transition temperature (Tg) more It is low, it can more obtain mobility or the tendency of the superior formed body of transferability., cannot be heat-resisting however, if Tg is excessively low The superior injection molded article of property.

For example, by double (4- hydroxy phenyls) propane of 2,2- (commonly known as bisphenol-A, hereafter abbreviated with BPA) and phosphinylidyne Chlorine or carbonic diester react obtained existing polycarbonate resin (commonly known as BPA-PC, hereafter abbreviated with BPA- PC heat resistance, the transparency) is superior, and the mechanical property such as impact resistance is also superior, therefore serves not only as structural material, also makees It is widely used for optical material in liquid crystal with light guide plate, optic disc base board, various lens, prism, optical fiber etc..

However, with the extension of optical material purposes in recent years, BPA-PC has the situation of impact resistance deficiency, therefore by force The strong large-scale thin light guide panel injection molded article for requiring exploitation and improving impact resistance.

Prior art literature

Patent document

Patent document 1：Japanese Patent Laid-Open 11-300842 publications

Patent document 2：Japanese Patent Laid-Open 2000-153535 publications

Patent document 3：International Patent Publication the 2007/132874th

Patent document 4：No. 4156162 publications of Japanese Patent No.

Patent document 5：No. 3758951 publications of Japanese Patent No.

The content of the invention

Invent problem to be solved

It is such in order to solve the problems, such as, for example, being disclosed in patent document 1~3 using the original that main framing is bisphenol A-type Sample is constant, by changing the species of end-capping reagent and the optic disc base board suitable for injection molding polycarbonate resin.However, patent In document 1~3 and independent of the record for the light guide plate for having used polycarbonate resin, and have can for the resin described in these documents And can not have the sufficient impact strength as large-scale light guide plate.

The polycarbonate resin for using and improving mobility as terminal groups with chain alkyl is proposed in patent document 4 The light guide plate of fat.However, the further improvement of mobility is required in the case of maximization, and impact resistance also also has improvement Leeway.

Proposed in patent document 5 use with chain alkyl improved as the polycarbonate resin of terminal groups it is heat-resisting The optic informating recording medium substrate of discoloration, but light guide plate formed body is used as, its impact resistance, transferability, which have, further to be changed Kind leeway.

The problem of the present invention is to provide a kind of light guide plate shaping comprising polycarbonate resin, that impact resistance is superior Body.

For solving the method for problem

As a result the present inventor etc. had found by inquiring into keen determination, containing with specific end structure and specific viscous dividing equally Son amount polycarbonate resin light guide plate with injection molded article compared with the formed body that existing polycarbonate resin is formed, its Impact resistance is superior, and can turn into large-scale formed body, reaches the present invention.

That is, the present invention relates to the light guide plate injection molded article containing polycarbonate resin as shown below.

A kind of light guide plate injection molded articles of the ＞ of ＜ 1, it contains with end structure shown in following formulas (1), and viscous equal Molecular weight is 13,000~18,000 polycarbonate resin.

(in formula,

R₁The alkyl of carbon number 5~23 or the alkenyl of carbon number 8~36 are represented,

R₂~R₅Separately represent hydrogen, halogen, can have substituent carbon number 1~20 alkyl and can be with Any of aryl of carbon number 6~12 with substituent.)

Formed bodys of the ＞ of ＜ 2 as described in the ＞ of ＜ 1, wherein, the polycarbonate resin is contains following formulas (2) institute table The resin of the construction unit shown.

(in formula,

R₆~R₁₃Separately represent hydrogen, halogen, can have substituent carbon number 1~5 alkoxy atom Group (alkoxyl group), can the alkyl with the carbon number 1~20 of substituent, can the carbon atom with substituent The alkoxy (alkoxy group) of number 1~5, can the aryl with the carbon number 6~12 of substituent, can with substitution The aralkyl of the carbon number 7~17 of base and any of the alkenyl of carbon number 2~15 can with substituent,

X is singly-bound ,-O- ,-S- ,-SO- ,-SO₂-, any of-CO- and following formulas (3)~(6) Structure.)

(in formula,

R₁₄And R₁₅Separately represent hydrogen, halogen, can have substituent carbon number 1~20 alkyl, can be with The alkoxy of carbon number 1~5 with substituent, can the aryl with the carbon number 6~12 of substituent, can be with The alkenyl of the carbon number 2~5 of substituent and any of the aralkyl of carbon number 7~17 can with substituent,

C represents 1~20 integer.)

(in formula, R₁₆And R₁₇Separately represent hydrogen, halogen, can have substituent carbon number 1~20 alkane Base, can the alkoxy with the carbon number 1~5 of substituent, can the aryl with the carbon number 6~12 of substituent, Alkenyl that can be with the carbon number 2~5 of substituent and can be in the aralkyl with the carbon number 7~17 of substituent It is any, R₁₆And R₁₇It can be mutually bonded and form the carbocyclic ring or heterocycle of carbon number 1~20.)

(in formula, R₁₈~R₂₁Separately represent hydrogen, halogen, can have substituent carbon number 1~20 alkane Base, can the alkoxy with the carbon number 1~5 of substituent, can the aryl with the carbon number 6~12 of substituent, Alkenyl that can be with the carbon number 2~5 of substituent and can be in the aralkyl with the carbon number 7~17 of substituent It is any, R₁₈And R₁₉And R₂₀And R₂₁It can be mutually bonded and form the carbocyclic ring or heterocycle of carbon number 1~20.)

(in formula, R₂₂~R₃₁It is separately hydrogen atom or the alkyl of carbon number 1~3.)

Formed bodys of the ＞ of ＜ 3 as described in the ＞ of ＜ 1 or the ＞ of ＜ 2, wherein, the end structure has following formulas (8) knot Structure.

(in formula, R₁For the alkyl of carbon number 5~23.)

Formed bodys of the ＞ of ＜ 4 as described in the ＞ of ＜ 3, wherein, the R in the formula (8)₁For selected from 2- ethylhexyls, It is more than any one in 2- hexyls decyl, cetyl and docosyl.

The ＞ of ＜ 5 such as any one of ＞ of 2 ＞ of ＜~＜ 4 formed body, wherein, the X in the formula (2) has the formula (3) structure.

Formed bodys of the ＞ of ＜ 6 as any one of the ＞ of 1 ＞ of ＜~＜ 5, wherein, the Q values of the polycarbonate resin are 10×10^{- 2}More than cc/sec.

Formed bodys of the ＞ of ＜ 7 as any one of the ＞ of 1 ＞ of ＜~＜ 6, wherein, the Izod punchings of the polycarbonate resin Hit intensity is more than 30J/m.

Formed bodys of the ＞ of ＜ 8 as any one of the ＞ of 1 ＞ of ＜~＜ 7, wherein, the vitrifying of the polycarbonate resin Transition temperature is more than 90 DEG C.

A kind of light guide plate of the formed bodys contained any one of the ＞ of 1 ＞ of ＜~＜ 8 of the ＞ of ＜ 9 as part.

Invention effect

With formed body compared with existing formed body, impact resistance is superior, can be easily for the light guide plate injection of the present invention Maximization.In addition, the formed body of the present invention is able to maintain that the original speciality of polycarbonate resin is constant, liquid crystal light guide plate is kept Required characteristic (such as impact resistance, transferability, heat resistance, the transparency, form and aspect), therefore, maximized suitable for thin-walled Optical material, especially suitable for light guide plate injection molded article.

Embodiment

Below, illustrated for one of embodiments of the present invention, but the present invention is not limited by following embodiments It is fixed.

(light guide plate injection molded article)

The light guide plate injection molded article of the present invention contains the polycarbonate resin with specific structure and viscosity average molecular weigh Fat.Hereinafter, the polycarbonate resin is illustrated.

[polycarbonate resin]

The polycarbonate resin contained in the light guide plate injection molded article of the present invention has the end shown in following formulas (1) End structure, and viscosity average molecular weigh is 13,000~18,000.

In formula (1), R₁Represent the alkyl of carbon number 5~23 or the alkenyl of carbon number 8~36.R₂~R₅It is only respectively On the spot represent hydrogen, halogen, can be with the carbon number 1~20 of substituent alkyl and can the carbon number with substituent Any of 6~12 aryl.Wherein, above-mentioned substituent separately represent halogen, carbon number 1~20 alkyl or The aryl of carbon number 6~12.

In addition, the structure represented by the further preferred formula of end structure (8) shown in formula (1).

In formula (8), R₁Represent the alkyl of carbon number 5~23.More preferably R₁For carbon number 6~22, further it is excellent Select carbon number 6~20, particularly preferred carbon number 8~16 alkyl.R₁Specifically it is preferably selected from 2- ethyl hexyls It is more than any one among base, 2- hexyls decyl, cetyl and docosyl.

The polycarbonate resin is to form compound using dihydroxy compounds, carbonic ester to be polymerize, by using logical End-capping reagent represented by formula (1a), which will react, to be stopped and obtains.

The respective raw material of polycarbonate resin is described in detail below.

＜ dihydroxy compounds ＞

Dihydroxy compounds used in the polycarbonate resin contained in the light guide plate injection molded article of the present invention is only If having the phenol based compound of two hydroxyls in the molecule, just it is not particularly limited, but resisting from resulting formed body From the viewpoint of impact, purity are high, circulation is big, the compound of the dihydric phenol represented by preferred formula (7).By using Such dihydric phenol, obtained polycarbonate resin have the construction unit represented by formula (2).

In formula (7), R₆~R₁₃Separately represent hydrogen, halogen, the carbon number 1~5 can with substituent Alkoxyl group (alkoxyl group), can the alkyl with the carbon number 1~20 of substituent, can with substitution The alkoxy (alkoxy group) of the carbon number 1~5 of base, can have substituent carbon number 6~12 aryl, can With the aralkyl of the carbon number 7~17 with substituent and can be in the alkenyl with the carbon number 2~15 of substituent Any, X is selected from singly-bound ,-O- ,-S- ,-SO- ,-SO₂-, appointing in-CO- and following formulas (3)~(6) A kind of structure.

In formula (3), R₁₄And R₁₅Separately represent hydrogen, halogen, the carbon number 1~20 can with substituent , preferably carbon number 1~8, more preferably the alkyl of carbon number 1~3, can have substituent carbon number 1~5 , preferably the alkoxy of carbon number 1~3, can have carbon number 6~12, the preferred carbon number 6~8 of substituent Aryl, can with substituent it is carbon number 7~17, preferably the aralkyl of carbon number 7~12 or can with substitution Carbon number 2~15, preferably carbon number 2~5 the alkenyl of base.Wherein, above-mentioned substituent separately represent halogen, The alkyl of carbon number 1~20 or the aryl of carbon number 6~12.The integer of C expressions 1~20, preferably 1~12, further It is preferred that 1 integer.

In formula (4), R₁₆And R₁₇Separately represent hydrogen, halogen, the carbon number 1~20 can with substituent , preferably the alkyl of carbon number 1~9, can have substituent carbon number 1~5, preferably carbon number 1~3 alkane Epoxide, can carbon number 6~12, preferably carbon number 6~8 the aryl with substituent, can be with substituent Carbon number 7~17, preferably the aralkyl of carbon number 7~12 or can have the carbon number 2~15, preferably of substituent The alkenyl of carbon number 2~5.Wherein, above-mentioned substituent separately represents the alkyl or carbon of halogen, carbon number 1~20 The aryl of atomicity 6~12.R₁₆And R₁₇It can be mutually bonded and form carbon number 1~20, preferred carbon number 1~12 Carbocyclic ring or heterocycle.

In formula (5), R₁₈~R₂₁Separately represent hydrogen, halogen, the carbon number 1~20 can with substituent , preferably the alkyl of carbon number 1~9, can have substituent carbon number 1~5, preferably carbon number 1~3 alkane Epoxide, can carbon number 6~12, preferably carbon number 6~8 the aryl with substituent, can be with substituent Carbon number 7~17, preferably the aralkyl of carbon number 7~12 or can have the carbon number 2~15, preferably of substituent The alkenyl of carbon number 2~5.Wherein, above-mentioned substituent separately represents the alkyl or carbon of halogen, carbon number 1~20 The aryl of atomicity 6~12.In addition, R₁₈And R₁₉And R₂₀And R₂₁It can be mutually bonded and form the carbocyclic ring of carbon number 1~20 Or heterocycle.

In formula (6), R₂₂~R₃₁It is separately hydrogen atom or the alkyl of carbon number 1~3, R₂₂~R₃₁Among extremely Few 1, preferably 3 alkyl for carbon number 1~3.

As the dihydroxy compounds shown in formula (7), for example, can enumerate：Double (4- hydroxy phenyls) propane of 2,2- (BPA), double (4- hydroxy phenyls) ethane of 1,1-, double (4- hydroxy phenyls) methane, double (4- hydroxy phenyls)-to diisopropyl Double (4- hydroxyl -3,5- 3,5-dimethylphenyls) propane of base benzene, 4,4' dihydroxy diphenyl, 2,2-, 2,2- it is double (4- hydroxyls - 3- aminomethyl phenyls) propane, double (4- hydroxyl -3,5- diethyl phenyls) propane of 2,2-, the double (4- hydroxyl -3- second of 2,2- Base phenyl) propane, double (4- hydroxyl -3,5- diphenyl phenyl) propane of 2,2-, the double (4- hydroxyl -3- phenyl benzene of 2,2- Base) propane, double (4- hydroxyl -3,5- dibromo phenyls) propane of 2,2-, double (4- hydroxyl -3- bromophenyls) propane of 2,2-, 2,2- double (4- hydroxy phenyls) pentane, 2,4 '-dihydroxy-diphenyl methane, double (4- hydroxy-3-methyls phenyl) first Double (4- hydroxy phenyls) ethane of alkane, double (4- hydroxyl -3- nitrobenzophenones) methane, 1,1-, the double (4- hydroxyls -3- of 1,1- Aminomethyl phenyl) it is ethane, double (4- hydroxy phenyls) pentanes of 3,3-, 1,1-bis(4-hydroxyphenyl)-cyclohexane [=bisphenol Z], double (4- hydroxy phenyls) sulfone, 2,4 '-dihydroxydiphenylsulisomer, double (4- hydroxy phenyls) thioethers, 4,4 '-dihydroxy diphenyl ether, 4, 4 '-dihydroxy -3,3 '-dimethyl diphenyl ether, 4,4 '-dihydroxy -2,5- diethoxies diphenyl ether, 1- benzene Double (4- hydroxy phenyls) ethane of base -1,1-, 1,1- double (4- hydroxy-3-methyls phenyl) hexamethylene, 1- phenyl -1, 1- double (4- hydroxy-3-methyls phenyl) ethane, double (4- hydroxy phenyls) diphenyl methanes, double (4- hydroxy-3-methyls Phenyl) diphenyl methane, double (4- hydroxy phenyls) fluorenes of 9,9-, double (the 4- hydroxy-3-methyls phenyl) fluorenes of 9,9- and 2,2- Double (4- hydroxy phenyls) HFC-236fas etc..Wherein, double (4- hydroxy phenyls) propane (BPA) of more preferably 2,2-, 1,1- are double (4- hydroxy phenyls) ethane, double (4- hydroxy phenyls) methane, it is from the stability as monomer and then impure from being readily available From the viewpoint of measuring few product etc., double (4- hydroxy phenyls) propane (BPA) of particularly preferred 2,2-.

These dihydroxy compounds can be used alone or be used in mixed way two or more.

In addition, the polycarbonate resin contained in the light guide plate injection molded article of the present invention can have branch as needed Chain structure., can be by phloroglucin, 4,6- dimethyl -2,4, (the 4- hydroxyls of 6- tri- in order to obtain the polycarbonate resin of branch Base phenyl) heptene -2,4,6- dimethyl -2,4,6- three (4- hydroxy phenyls) heptane, 2,6- dimethyl -2,4,6- three The institutes such as (4- hydroxy phenyls) teracrylic acid, 1,3,5- tri- (4- hydroxy phenyls) benzene, 1,1,1- tri- (4- hydroxy phenyls) ethane Double (4- hydroxyaryls) Oxoindoles (=isatin-bis-phenol) of the polyol or 3,3- of representative, 5- chlorisatides are double Polyfunctional compound representated by phenol, 5,7- dichloros isatin-bis-phenol, 5-bromoisatin bis-phenol etc. is as above-mentioned dihydroxy compounds The replacement use of one, usage amount is rubs 0.01~10 mole of % of total dihydroxy compounds, preferably 0.1~3 Your % is substituted.

＜ carbonic esters form compound ＞

Carbonic ester forms compound used in the polycarbonate resin that the light guide plate injection molded article of the present invention contains Phosgene, three phosgenes, carbonic diester and carbonyls can be illustrated.Carbonic ester is formed among compound, from obtained tree The quality of the form and aspect of fat, stability etc., further from the viewpoint of cost, particularly preferred phosgene.

As carbonyls, such as carbon monoxide, carbon dioxide can be enumerated.

As carbonic diester, can enumerate such as dimethyl carbonate,

Diethyl carbonate,

The dialkyl carbonate based compound of dimethyl dicarbonate butyl ester etc.,

Diphenyl carbonate,

Carbonic acid two to toluene ester,

Carbonate is to toluene ester and carbonic acid two to the diaryl carbonates compound such as chlorobenzene ester.Among these, from reactivity, Form and aspect of obtained resin and then from the viewpoint of cost, preferably diphenyl carbonate and carbonic acid two are to toluene ester, carbonic acid benzene Base is to toluene ester and carbonic acid two to the carbonic acid disubstituted benzenes ester such as chlorobenzene ester, particularly preferred diphenyl carbonate.These carbonic diesters Compound can be used alone or be used in mixed way two or more.

＜ end-capping reagents ＞

The end-capping reagent that the polycarbonate resin that the light guide plate of the present invention is contained with injection molded article uses is following formulas Unitary phenol represented by (1a).

In formula (1a), R₁Represent the alkyl of carbon number 5~23 or the alkenyl of carbon number 8~36.R₂~R₅It is only respectively On the spot represent hydrogen, halogen, can be with the carbon number 1~20 of substituent alkyl or can the carbon number with substituent 6~12 aryl.R₂~R₅It is preferred that hydrogen, halogen, can be with the carbon number 1~9 of substituent alkyl or can with substitution The aryl of the carbon number 6~8 of base.Wherein, above-mentioned substituent separately represents halogen, the alkyl of carbon number 1~20 Or the aryl of carbon number 6~12.

In formula (1a), from the viewpoint of mobility and heat endurance is kept, R₁The preferably alkane of carbon number 5~23 The alkenyl of base or carbon number 8~36.

R in formula (1a)₁Carbon number be less than 23 in the case of, light guide plate of the invention is contained with injection molded article The Tg of some polycarbonate resins becomes the tendency relatively high, heat endurance is improved, R₁Carbon number be higher than 5 situation Under, tendency that mobility and impact resistance are improved.

In addition, the end-capping reagent represented by the further preferred formula of end-capping reagent (8a) represented by formula (1a).

In formula (8a), R₁Represent the alkyl of carbon number 5~23.More preferably R₁For carbon number 6~22, further It is preferred that carbon number 6~20, particularly preferred carbon number 8~16 alkyl.

As the concrete example of end-capping reagent, from the viewpoint of heat resistance, preferably enumerate P-hydroxybenzoic acid -2- ethyls Hexyl ester, P-hydroxybenzoic acid -2- hexyl decyl esters, P-hydroxybenzoic acid cetyl ester, P-hydroxybenzoic acid 22 Any of Arrcostab or a variety of conduct end-capping reagents use.

And then from heat resistance and from the viewpoint of being readily available, more preferably by P-hydroxybenzoic acid -2- ethylhexyls Any of ester, P-hydroxybenzoic acid cetyl ester or both use as end-capping reagent.

Because the manufacturing condition of the polycarbonate resin contained by the light guide plate injection molded article of the present invention is different, it is possible to It can be formed and not reacted with end-capping reagent and remain the terminal groups of phenol OH bases.From the viewpoint of hydrolytic resistance, the phenol OH bases are more few better.Specifically, more than the 80mol% in preferably whole ends is by the building blocks represented by formula (1), spy More than 90mol% not preferably in whole ends is by the building blocks represented by formula (1).

As end-capping reagent used in the present invention, according to the characteristic to material requirements, as long as not departing from the master of the present invention In the range of purport, two or more can be used simultaneously, it is allowed to made simultaneously with the material of the structure beyond structure shown in formula (1a) With.

As can with end-capping reagent used at the same time, can enumerate phenol, paracresol, orthoresol, 2,4- xylenols, to uncle Butylphenol, adjacent acrylic phenol, anol, 4-Vinyl phenol, to hydroxy-alpha-methyl styrene, to propyl group Phenol, p -cumylphenol, p-phenyl phenol, o-phenyl phenol, p-trifluoromethyl-phenol, nonylphenol, to detergent alkylate Phenol, eugenol, amyl phenol, hexylphenol, heptylphenol, octyl phenol, nonyl phenol, decyl phenol, detergent alkylate Alkylphenol and the para hydroxybenzenes such as phenol, myristyl phenol, cetyl phenol, octadecylphenol, docosyl phenol The alkyl parabens such as the formicester of formic acid, ethyl ester, propyl ester, butyl ester, pentyl ester, own ester, heptyl ester.In addition, also can be simultaneously Use two or more in above-mentioned end-capping reagent.From the viewpoint of purity, cost, especially can using end-capping reagent used at the same time as pair Tert-butyl phenol.

In the case of using other end-capping reagents, it is preferably below the 20mol% in whole end-capping reagents, more preferably for Below 10mol%.

The usage amount ＞ of ＜ end-capping reagents (unitary phenol)

The molecular weight for the polycarbonate resin that the light guide plate injection molded article of the present invention contains can be by end-capping reagent Usage amount controls.

For shown in the degree of polymerization of the dihydroxy compounds of main framing and for example following calculating formulas (I) of the usage amount of end-capping reagent.

The usage amount (mole) of end-capping reagent

The degree of polymerization × 2 (I) of usage amount (mole) ÷ main framings of=dihydroxy compounds

The usage amount of end-capping reagent (unitary phenol) and dihydroxy compounds, but dihydroxy compounds are determined based on the calculating formula Usage amount (mole):The preferred scope of the usage amount (mole) of end-capping reagent is 50:1~4:1, more preferably 40:1~6: 1 scope, particularly preferred 20:1~6:1.

The polycarbonate resin that light guide plate injection molded article on the present invention contains, according to the spy to material requirements Property, as long as without departing from the spirit and scope of the invention, it is allowed to mix other resins, various additives.

[the other resins that can be mixed]

In the light guide plate injection molded article of the present invention, other resins can be contained as needed.As it is such its His resin, the polycarbonate resin that can be enumerated in such as present invention beyond the polycarbonate resin used, poly- terephthaldehyde Sour glycol ester resin (PET resin), polytrimethylene's ester (PTT resins), polybutylene terephthalate (PBT) The thermoplastic polyesters such as resin (PBT resin)；Polystyrene resin (PS resins), high impact polystyrene resin (HIPS), the benzene such as acrylonitritrile-styrene resin (AS resins), copolymer of methyl methacrylatestyrene (MS resins) Vinylite；The elastomers of core/shell type such as methyl methacrylate-acrylic rubber-styrenic copolymer (MAS), gather The elastomers such as ester based elastomers；The polyolefin such as ring-type cyclic olefin resins (COP resins), ring-type cycloolefin (COP) copolymer resin Resin；Polyamide (PA resins)；Polyimide resin (PI resins)；Polyetherimide resin (PEI resins)；Polyurethane tree Fat (PU resins)；Polyphenylene oxide resin (PPE resins)；Polyphenylene sulfide (PPS resin)；Polysulfone resin (PSU resins)；Poly- methyl Acrylate (PMMA resins)；Polycaprolactone etc..As hybrid resin, PS resins, AS resins, PMMA are particularly preferably enumerated Resin.

The light guide plate of the present invention is preferably all resin composition with the component ratio of other resins in injection molded article Below 10 mass %, further preferred below 1 mass %.By make the component ratios of other resins for 10 mass % with Under, it is able to maintain that various performances.

[additive]

In the light guide plate injection molded article of the present invention, as long as without departing from the spirit and scope of the invention, Ke Yipei Close various additives.As additive, can illustrate selected from heat stabilizer, antioxidant, fire retardant, flame retardant, ultraviolet At least one kind of additive in absorbent, releasing agent and colouring agent.

In addition, not damage desired various performances significantly as limit, can add antistatic additive, fluorescent whitening agent, Antifoggant, fluidity amendment, plasticiser, dispersant, antiseptic etc..

As heat stabilizer, phenol system, phosphorus system, the heat stabilizer of sulphur system can be enumerated.Specifically, phosphorus can be enumerated The aerobic acid of the phosphorus such as acid, phosphonic acids, phosphorous acid, phosphinic acids, polyphosphoric acid；Acidic sodium pyrophosphate, acidic potassium pyrophosphate, acid pyrophosphoric acid The metal acid pyrophosphate salt such as calcium；1st races such as potassium phosphate, sodium phosphate, phosphoric acid caesium, trbasic zinc phosphate or the phosphate of the 10th race's metal； Organophosphorus compounds, organophosphite compound, organic phosphonate compounds etc..Or it can enumerate selected from molecule In at least one ester be by phenol and/or with least one carbon number 1~25 alkyl phenol be esterified phosphite ester Among compound (a), phosphorous acid (b) and four (2,4- di-tert-butyl-phenyls) -4,4 '-biphenylene-diphosphonites (c) It is at least one kind of.As the concrete example of bi-ester of phosphite (a), trioctylphosphite, three (octadecyl) phosphorous can be enumerated Acid esters, three decyl phosphite esters, three (dodecyl) phosphite esters, three stearyl phosphite esters, triphenyl phosphite, three (single nonyl phenyl) phosphite ester, three (single nonyl/dinonyl-phenyl) phosphite esters, three (nonyl phenyl) phosphite esters, three (octyl phenyl) phosphite ester, three (2,4- di-tert-butyl-phenyls) phosphite esters, three nonyl phosphite esters, didecyl base mono-phemyol Phosphite ester, dioctyl list phenyl phosphites, diisopropyl list phenyl phosphites, monobutyl diphenylphosphite, list Decyl diphenyl phosphite ester, double (2,4- di-tert-butyl-phenyls) pentaerythritol phosphites, it is double (2,6- di-t-butyls- 4- aminomethyl phenyls) pentaerythritol phosphite, single octyl diphenyl phosphite ester, distearyl pentaerythrityl diphosphite, Thricyclohexyl phosphite ester, diphenyl pentaerythritol diphosphites, double (2,6- di-t-butyl -4- aminomethyl phenyls) seasons penta Tetrol diphosphites, 2,2- di-2-ethylhexylphosphine oxides (4,6- di-tert-butyl-phenyls) octyl group phosphite ester, double (nonyl phenyl) seasons penta Tetrol diphosphites, double (2,4- di-tert-butyl-phenyls) pentaerythritol diphosphites, double (2,6- di-t-butyls -4- Ethylphenyl) pentaerythritol diphosphites etc..These may be used alone, can also be 2 or more kinds in combination.

As organophosphite compound, specifically, such as ADEKA company systems (trade name, following phase can be enumerated Together) " ADKSTAB 1178 ", " ADKSTAB 2112 ", " ADKSTAB HP-10 ", north of the city chemical industry society system " JP-351 ", " JP-360 ", " JP-3CP ", BASF AG's system " IRGAFOS 168 " etc..

In addition, as phosphate stabilizer, trimethyl phosphate, triethyl phosphate, tributyl phosphate, tricresyl phosphate can be enumerated Monooctyl ester, triphenyl phosphate, tricresyl phosphate, tricresyl phosphate (nonyl phenyl) ester, phosphoric acid -2- ethylphenyl diphenyls etc.. Wherein, phosphorus system stabilizer can contain a kind, can also contain two or more with ratio in any combination.

In the case where coordinating heat stabilizer, its adding proportion is, relative to the mass parts of polycarbonate resin 100, such as More than 0.001 mass parts, preferably more than 0.01 mass parts, more preferably for 0.03 mass parts more than, in addition, being 1 mass parts Hereinafter, preferably below 0.7 mass parts, more preferably for 0.5 mass parts below.If heat stabilizer is very few, thermostable effect has Become insufficient possibility, if heat stabilizer is excessive, effect touches top, and having becomes uneconomic possibility.

As antioxidant, can enumerate phenol system antioxidant, hindered phenol series antioxidant, double phenol antioxidants, More phenol antioxidants etc..Specifically, can enumerate BHT, three (3,5- di-t-butyls- 4- hydroxybenzyls) isocyanuric acid ester, n-octadecane base -3- (3 ', 5 '-di-t-butyl -4 '-hydroxy phenyl) propionic ester, Double (the 3- first of four [methylene -3- (3,5- di-tert-butyl-hydroxy phenyls) propionic ester] methane, 4,4 '-butylidene Base -6- tert-butyl phenols), triethylene-glycol-bis- [3- (3- tertiary butyl-4-hydroxy -5- aminomethyl phenyls) propionic acid Ester], double { 2- [3- (3- tertiary butyl-4-hydroxy -5- aminomethyl phenyls) the propionyloxy] -1,1- dimethyl second of 3,9- Base } -2,4,8,10- four oxaspiro [5,5] hendecane, [the 3- (3,5- di-tert-butyl-hydroxy phenyls) of pentaerythrite four Propionic ester], thiodiethylene double [3- (3,5- di-tert-butyl-hydroxy phenyls) propionic ester], N, N'- hexane -1, 6- diyls double [3- (3,5- di-tert-butyl-hydroxy phenyls propionamide), 2,4- dimethyl -6- (1- methyl 15 Alkyl) phenol, diethyl [[3,5- double (1,1- dimethyl ethyls) -4- hydroxy phenyls] methyl] phosphonate ester, 3,3 ', 3 ", Double (the Xin Liujia of 5,5 ', 5 "-six tert-butyl group-a, a ', a "-(bases of mesitylene -2,4,6- three) three paracresol, 4,6- Base)-orthoresol, ethylenebis (oxy ethylene) double [3- (a 5- tertiary butyl-4-hydroxies-tolyl) propionic esters], Hexamethylene bis [3- (3,5- di-tert-butyl-hydroxy phenyls) propionic ester], 1,3,5- tri- (3,5- di-t-butyls- 4- hydroxybenzyls) -1,3,5- triazines -2,4,6 (1H, 3H, 5H)-triketone, (4,6- is double by 2,6- di-t-butyls -4- (pungent sulfenyl) -1,3,5- triazine -2- bases amino) phenol etc..As phenol system antioxidant, can specifically enumerate for example BASF AG's system " IRGANOX 1010 " (registration mark, same as below), " IRGANOX 1076 ", ADEKA company systems " ADKSTAB AO-50 ", " ADKSTAB AO-60 " etc..Wherein, phenol system stabilizer can contain a kind, can also be with arbitrary Combination and ratio contain two or more.

In the case where coordinating antioxidant, its adding proportion is, for example, relative to the mass parts of polycarbonate resin 100 More than 0.001 mass parts, preferably more than 0.01 mass parts, in addition, being below 1 mass parts, preferably below 0.5 mass parts. If the adding proportion of antioxidant is very few, the effect as antioxidant has the possibility for becoming insufficient, if antioxidant Adding proportion it is excessive, then effect touch top, having becomes uneconomic possibility.

As fire retardant, metal organic sulfonate etc. can be enumerated.As metal organic sulfonate, aliphatic can be enumerated Metal organic sulfonate and aromatic sulphonic acid metal salt etc., these can be used alone, and can also use two or more simultaneously.Separately Outside, as metal salt, preferred as alkali salt and alkali salt.As alkali metal, sodium, lithium, potassium, rubidium, caesium can be enumerated.As Alkaline-earth metal, calcium, strontium etc. can be enumerated.The preferred metal of the metal organic sulfonate used in the present invention is sodium, potassium, rubidium, caesium It is more preferably sodium, potassium Deng alkali metal.By using such metal, it can obtain being effectively facilitated carbonization during burning Layer is formed, and maintains effect as high transparency.

It is more preferably perfluoroalkanes-sulfonic acid as aliphatic sulfonic metal salt, preferably fluoric ether-metal organic sulfonate Metal salt.

In addition, as fluoric ether-metal organic sulfonate, alkali metal salt and alkali salt can be enumerated, wherein it is preferred that alkali Metal salt.It is more preferably 2~4 as the carbon number of fluoric ether-metal organic sulfonate, preferably 1~8.By being set to so Scope, can obtain maintain high transparency effect., can as the concrete example of preferable fluoric ether-metal organic sulfonate Enumerate perfluorinated butane-sodium sulfonate, perfluorinated butane-potassium sulfonate, hexafluoroethane-sodium sulfonate, hexafluoroethane-potassium sulfonate etc..

As aromatic sulphonic acid metal salt, alkali metal salt and alkali salt, preferred as alkali salt can be enumerated.As virtue The concrete example of fragrant race's sulfone sulfonic acid alkali metal salts, can enumerate 3,4- dichloro benzosulfonic acids sodium salt, 2,4,5- trichloro-benzenes sulfonate sodiums, Benzene sulfonic acid sodium salt, the sodium salt of diphenyl sulphone (DPS) -3- sulfonic acid, the sylvite of diphenyl sulphone (DPS) -3- sulfonic acid, 4,4 '-dibromo diphenyl-sulfone - The sodium salt of 3- sulfonic acid, the sylvite of 4,4 '-dibromo phenyl-sulfone -3- sulfonic acid, diphenyl sulphone (DPS) -3,3 '-disulfonic acid disodium salt, Di-potassium, pelopon A, Potassium dodecylbenzenesulfonate salt, the p-methyl benzenesulfonic acid of diphenyl sulphone (DPS) -3,3 '-disulfonic acid Sylvite, p styrene sulfonic acid sylvite etc..

, can be in the light guide plate injection molded article of the present invention particularly from the viewpoint of the transparency for improving formed body Sylvite, p-methyl benzenesulfonic acid sylvite, the p styrene sulfonic acid potassium of the middle preferred diphenyl sulphone (DPS) -3- sulfonic acid of metal organic sulfonate used The sylvite of salt, more preferably Potassium dodecylbenzenesulfonate salt, diphenyl sulphone (DPS) -3- sulfonic acid.In addition, relative to polycarbonate resin 100 Mass parts, the addition quality of metal organic sulfonate are the mass parts of 0.005 mass parts~0.1, but preferably 0.01 mass parts~ 0.1 mass parts, it is more preferably the mass parts of 0.03 mass parts~0.09.In addition, in the present invention, organic sulfonic acid can also be coordinated golden Belong to the fire retardant beyond salt.

As flame retardant, such as organo-silicon compound can be added.As organo-silicon compound, preferably have in the molecule There is the compound of phenyl.By with phenyl, dispersiveness raising of the organo-silicon compound into makrolon, it is transparent with it is fire-retardant Property is superior.The preferable weight-average molecular weight of organo-silicon compound is 450~5,000, wherein it is preferred that 750~4,000, further preferably 1,000~3,000, particularly preferred 1,500~2,500.By making weight average molecular weight be more than 450, manufacture is set to become easy, should Become easy for industrialized production, the heat resistance of organo-silicon compound also becomes to be not easy to reduce.On the contrary, by will be siliconated The weight average molecular weight of compound is set to 5, less than 000, and the dispersiveness in polycarbonate resin is difficult to reduce, as a result, having The tendency that the anti-flammability of formed body reduces or mechanical performance reduces can more effectively be suppressed.

In the case where coordinating flame retardant, its adding proportion is, for example, 0.1 relative to the mass parts of polycarbonate resin 100 More than mass parts, preferably more than 0.2 mass parts, in addition, being below 7.5 mass parts, preferably below 5 mass parts.If fire-retardant help The adding proportion of agent is very few, then has anti-flammability to become insufficient possibility, if the adding proportion of flame retardant is excessive, there is hair The possibility that the bad orders such as raw delamination, the transparency reduce, and anti-flammability touches top, and having becomes uneconomic possibility.

As ultra-violet absorber, the inorganic ultraviolet absorbents such as cerium oxide, zinc oxide can be enumerated, can additionally be arranged Lift benzotriazole cpd, benzophenone compounds, salicylate compounds, cyanoacrylate compounds, triaizine compounds, grass The organic ultraviolet line absorptions such as anilid compound, malonate compound, hindered amine compound, phenyl salicylate based compound Agent.Among these, preferably enumerate BTA system, benzophenone system organic uv absorbers.Particularly, as benzotriazole cpd Concrete example, 2- (2'- hydroxyl -5'- aminomethyl phenyls) BTA can be enumerated, [2'- hydroxyls -3', 5'- is double by 2- (bis (alpha, alpha-dimethylbenzyl) base) phenyl]-BTA, 2- (2'- hydroxyls -3', 5'- di-t-butyl-phenyl)-benzo three Azoles, 2- (the 2'- hydroxyl -3'- tert-butyl group -5'- aminomethyl phenyls) -5- chlorobenzotriazoles, 2- (2'- hydroxyl -3', 5'- di-t-butyls-phenyl) -5- chlorobenzotriazoles), 2- (tertiary pentyl of 2'- hydroxyls -3', 5'- bis-)-BTA, 2- (2'- hydroxyl -5'- t-octyls phenyl) BTA, 2,2 '-di-2-ethylhexylphosphine oxide [4- (1,1,3,3- tetramethyl fourths Base) -6- (2N- BTA -2- bases) phenol], 2- (4,6- diphenyl -1,3,5- triazine -2- bases) -5- [(hexyl) epoxide]-phenol, 2- [double (2,4- the 3,5-dimethylphenyls) -1,3,5- triazine -2- bases of 4,6-] -5- are (pungent Epoxide) phenol, 2,2 '-(1,4- phenylenes) double [4H-3,1- benzoxazine -4- ketone], [(4- methoxyphenyls) - Methylene]-malonic acid-dimethyl ester, 2- (2H- BTA -2- bases)-paracresol, 2- (2H- BTAs - 2- yls) double (1- methyl isophthalic acids-phenyl methyl) phenol of -4,6-, 2- [5- chlorine (2H)-BTA -2- bases] - 4- methyl-6-tert-butylphenols, 2,4- di-t-butyls -6- (5- chlorobenzotriazole -2- bases) phenol, 2- (2H- BTA -2- bases) -4- (the 1,1,3,3- tetrabutyls) phenol, 2,2 '-di-2-ethylhexylphosphine oxide [6- (2H- BTAs - 2- yls) -4- (the 1,1,3,3- tetrabutyls) phenol], [methyl -3- [the 3- tert-butyl groups -5- (2H- BTAs -2- Base) -4- hydroxy phenyls] propionic ester-polyethylene glycol] condensation product etc..Two or more in these can be used simultaneously.It is above-mentioned it In, it is preferable that 2- (2 '-hydroxyl -5 '-t-octyl phenyl) BTA, 2,2 '-di-2-ethylhexylphosphine oxide [4- (1,1,3,3- tetra- Methyl butyl) -6- (2N- BTA 2- yls) phenol].In addition, the concrete example as benzophenone system ultra-violet absorber, Can enumerate 2,4- dihydroxy-benzophenone, 2- hydroxyl -4- methoxy-benzophenones, 2- hydroxyl -4- n-octyloxies - Benzophenone, 2- hydroxyls -4- dodecyloxies-benzophenone, 2- hydroxyls -4- octadecane epoxides-benzophenone, 2,2 '-two Hydroxyl -4- methoxy-benzophenones, 2,2 '-dihydroxy -4,4 '-dimethoxy-benzophenone, 2,2 ', 4,4 '-four hydroxyls Base-benzophenone etc..In addition, the concrete example as phenyl salicylate system ultra-violet absorber, can enumerate phenyl salicylate, 4- Tbutyl-phenyl salicylate etc..In addition, the concrete example as triazine system ultra-violet absorber, can enumerate 2- (4,6- Diphenyl -1,3,5- triazine -2- bases) -5- [(hexyl) epoxide]-phenol, 2- [double (the 2,4- dimethyl benzenes of 4,6- Base) -1,3,5- triazine -2- bases] -5- (octyloxy) phenol etc..In addition, the tool as the amine system ultra-violet absorber that is obstructed Style, double (2,2,6,6- tetramethyl piperidine -4- bases) sebacates etc. can be enumerated.

In the case where coordinating ultra-violet absorber, its adding proportion relative to the mass parts of polycarbonate resin 100, such as More than 0.01 mass parts, preferably more than 0.1 mass parts, in addition, being below 3 mass parts, preferably below 1 mass parts.If The adding proportion of ultra-violet absorber is very few, then the improved effect for having weatherability becomes insufficient possibility, if ultraviolet is inhaled The adding proportion of receipts agent is excessive, then has and produce mold deposit etc. in formed body and cause the possibility of mold fouling in shaping.

As releasing agent, the releasing agents such as carboxylate, polysiloxane compound, paraffin (polyolefin) can be enumerated.Specifically For, the ester selected from aliphatic carboxylic acid, aliphatic carboxylic acid and alcohol, the aliphatic of number-average molecular weight 200~15,000 can be enumerated At least one kind of compound in hydrocarbon compound, polysiloxane series silicone oil.As aliphatic carboxylic acid, saturation or insatiable hunger can be enumerated The carboxylic acid of the aliphatic unitary of sum, binary or ternary.Wherein, aliphatic carboxylic acid also includes the carboxylic acid of ester ring type.It is excellent among these The aliphatic carboxylic acid of choosing is the unitary or dicarboxylic acids of carbon number 6~36, the aliphatic of further preferred carbon number 6~36 Saturated monocarboxylic acid.As the concrete example of aliphatic carboxylic acid, palmitic acid, stearic acid, valeric acid, caproic acid, capric acid, bay can be enumerated Acid, arachidic acid, behenic acids, lignoceric acid, cerinic acid, melissic acid, tetracontane acid (テ ト ラ リ ア U Application タ Application acid), montanic acid, penta Diacid, adipic acid, azelaic acid etc..As the aliphatic carboxylic acid in the ester of aliphatic carboxylic acid and alcohol, can use and the fat Race's carboxylic acid identical material.On the other hand, as alcohol, saturation or undersaturated unitary or polyalcohol can be enumerated.In these alcohol, There can be the substituents such as fluorine atom, aryl.Among these, preferred unitary or polynary saturated alcohols of the carbon number below 30, Further preferred aliphatic saturated monohydroxy alcohol or polyalcohol of the carbon number below 30.Wherein, ester ring type is included in aliphatic Compound.As the concrete example of alcohol, octanol, decyl alcohol, dodecyl alcohol, stearyl alcohol, docosyl alcohol, second two can be enumerated Alcohol, diglycol, glycerine, pentaerythrite, 2,2- dihydroxy perfluor propyl alcohol, neopentyl glycol, double trimethylolpropane, two Pentaerythrite etc..It should be noted that above-mentioned ester compounds can contain aliphatic carboxylic acid and/or alcohol as impurity, can also It is the mixture of multiple compounds.As aliphatic carboxylic acid and the concrete example of the ester of alcohol, beeswax can be enumerated (with hexadecanoic acid three Ten Arrcostabs be principal component mixture), tearyl base ester, behenic acid docosane base ester, behenic acid octadecyl Ester, glycerine list hexadecane acid esters, glyceryl monostearate, glycerol distearate, glycerol tristearate, pentaerythrite list ten Six alkanoic acid esters, pentaerythritol monostearate, pentaerythritol stearic acid ester 2, pentaerythrite tristearate, pentaerythrite four Stearate etc..As the aliphatic hydrocarbon of number-average molecular weight 200~15,000, can enumerate atoleine, paraffin, microwax, Tissuemat E, fischer-tropsch wax, the alpha-olefin low polymers etc. of carbon number 3~12.Wherein, aliphatic hydrocarbon includes ester ring type hydrocarbon.Separately Outside, these hydrocarbon compounds can be partly oxidized.Among these, the preferred partial oxidation of paraffin, Tissuemat E or Tissuemat E Thing, further preferred paraffin, Tissuemat E.Number-average molecular weight is preferably 200~5,000.These aliphatic hydrocarbons can be single Material or the mixture of miscellaneous constituent or molecular weight, as long as principal component is in above-mentioned scope. As polysiloxane series silicone oil, such as dimethicone, phenyl methyl silicone oil, diphenyl silicone oil, fluorinated alkyl silicon can be enumerated Ketone etc..These can use two or more simultaneously.

In the case where coordinating releasing agent, its adding proportion is preferably relative to the mass parts of polycarbonate resin 100 It is more than 0.001 mass parts, more preferably for 0.01 mass parts more than, in addition, for below 2 mass parts, more preferably for 1 mass parts with Under.If the adding proportion of releasing agent is very few, the release property effect in shaping has insufficient situation, if the addition of releasing agent Ratio is excessive, then has the hydrolytic resistance of formed body to reduce, the possibility of mold fouling etc. occurs in injection moulding.

Dye pigment as colouring agent can be enumerated such as inorganic pigment, organic pigment, organic dyestuff.As inorganic face Material, can enumerate such as carbon black, cadmium red, cadmium yellow sulfides series pigments；The silicate pigment such as ultramarine；Titanium oxide, the flowers of zinc, three Aoxidize green two iron, chromium oxide, iron oxide black, titan yellow, zinc-iron system palm fibre, titanium cobalt system, cobalt green, cobalt blue, copper-chromium system is black, copper-iron system is black Deng oxide series pigments；The chromic acid series pigments such as chrome yellow, molybdate orange；Dark purple ferrous cyanogen series pigments of grade etc..In addition, having as colouring agent Machine pigment and organic dyestuff, the phthalocyanine system such as copper phthalocyanine blue, copper phthalocyanine green can be enumerated and contaminate pigment；The azo such as nickel azophosphine system Contaminate pigment；Thioindigo system, purple cyclic ketones system, perylene system, quinacridone, dioxazines system, isoindolinone system, quinophthalone system etc. Thick polycyclic dye pigment；Quinoline system, anthraquinone system, heterocycle system, the dye pigment etc. of methyl system.Among these, from the viewpoint of heat endurance Set out, preferably titanium oxide, carbon black, cyanine system, quinoline system, anthraquinone system, phthalocyanine system dye pigment etc..In addition, dye pigment can contain 1 Kind, two or more can also be contained with ratio in any combination.In addition, the operability, improvement when being extruded for improvement are for tree Dispersed purpose in fat composition, dye pigment can also use and polystyrene resin, polycarbonate-based resin, propylene The material of acid system resin concentrates.

In the case where coordinating colouring agent, its adding proportion is relative to the mass parts of polycarbonate resin 100, for example, 5 matter Measure part below, preferably below 3 mass parts, more preferably for 2 mass parts below.If the adding proportion of colouring agent is excessive, have into The impact resistance of type body becomes insufficient possibility.

[manufacture method of polycarbonate resin]

The polycarbonate resin that the formed body of the present invention contains can be based on known method and synthesize, and can enumerate such as boundary Face polymerization, pyridine method, ester-interchange method, the various synthetic methods that the ring-opening polymerisation method of cyclic carbonate compound is representative.Tool For body, by making dihydroxy compounds and carbonic ester form compound reaction to obtain the poly- of straight-chain thermoplastic poly carbonic ether Compound.In addition, in the case of using above-mentioned polyol and polyfunctional compound at the same time, branched thermoplastic can be obtained The copolymer of property makrolon.

It is being inert organic solvent, alkaline aqueous solution for reacting in the reaction carried out by interfacial polymerization In the presence of, pH is generally maintained at more than 10, in order to prevent aromatic dihydroxy compound and end-capping reagent, use as needed The oxidation of aromatic dihydroxy compound and use antioxidant, with phosgene react after, addition tertiary amine or quaternary ammonium salt etc. polymerization Catalyst, polycarbonate resin can be obtained by carrying out interfacial polymerization.As long as the addition of end-capping reagent is when from phosphinylidyne chlorination During rising untill when polymerisation starts, just it is not particularly limited.In addition, reaction temperature is 0~35 DEG C, the reaction time For several minutes~a few hours.

Wherein, as being inert organic solvent for reaction, dichloromethane, 1,2- dichloroethanes, chlorine can be enumerated Aromatic hydrocarbons such as chlorinated hydrocarbons, benzene,toluene,xylene such as imitative, monochlorobenzene, dichloro-benzenes etc..As end-capping reagent, except previous enumeration Compound beyond, in the range of the effect of the present invention is not damaged, the benzene phenolic hydroxyl group with unitary can be used simultaneously Compound.As polymerization catalyst, the tertiary amines such as trimethylamine, triethylamine, tri-n-butylamine, tripropyl amine (TPA), trihexylamine, pyridine can be enumerated Class；Quaternary ammonium salts such as trimethyl benzyl ammonia chloride, tetramethyl ammonium chloride, triethyl benzyl ammonia chloride etc..

The thin slice for the polycarbonate resin that the above method obtains can for example be obtained by that will contain in interfacial polymerization Polycarbonate resin dichloromethane solution instill be maintained in 45 DEG C of warm water, the method for solvent evaporative removal is obtained , or, can also be by the way that the dichloromethane solution containing the polycarbonate resin obtained in interfacial polymerization be poured into first In alcohol, by the polymer filtration of precipitation, drying mode and obtain, or, can also be by that will contain in interfacial polymerization The dichloromethane solution of obtained polycarbonate resin is kept for 40 DEG C while being stirred broken under the stirring of kneader Afterwards, the method for desolventizing is carried out in the hot water more than 95 DEG C and obtained.

The reaction carried out by ester-interchange method is the reaction for making carbonic diester carry out ester exchange with dihydroxy compounds.It is logical Often, by adjusting the mixed proportion of carbonic diester and aromatic dihydroxy compound, or degree of decompression during adjustment reaction, institute is determined The molecular weight and terminal hydroxyl amount of desired polycarbonate resin.Terminal hydroxyl amount for polycarbonate resin heat endurance, Hydrolytic stability, tone etc. have big influence, in order that resin has practical performance, terminal hydroxyl amount is preferably 1,000ppm Hereinafter, it is more preferably below 700ppm.Relative to 1 mole of dihydroxy compounds, usually using carbonic acid two more than equimolar amounts Ester, preferably using 1.01~1.30 moles of amount.

When carrying out the synthesis of polycarbonate resin by ester-interchange method, usually using ester exchange catalyst.Handed over as ester Catalyst changeout, it is not particularly limited, but mainly uses alkali metal compound and/or alkaline earth metal compound, can be complementary same When using alkaline boron compound, alkaline phosphating compound, alkaline ammonium compound or amine compound etc. alkali compounds.Use In the ester exchange reaction of such raw material, it can enumerate the mixing of dihydric phenol, unitary phenol (end-capping reagent), carbonic diester Thing is supplied to reactor under melting, is reacted in 100~320 DEG C of temperature, final 2.7 × 10²Pa (2mmHg) with Under decompression under, remove the accessory substances such as aromatic hydroxy compound while carrying out the method for melt polycondensation reaction.Melting contracting Cumulative enough in a batch manner or continuation mode is carried out, but for the polycarbonate resin used in the present invention, from stability Deng from the viewpoint of, preferably carried out by continuous mode.In ester-interchange method, as the catalyst in polycarbonate resin Deactivator, preferably using the compound of catalyst neutralisation, such as the acid compound of sulfur-bearing or the derivative that is formed by it, it makes Dosage is relative to the scope that the alkali metal of catalyst is 0.5~10 equivalent, preferably 1~5 equivalent, relative to polycarbonate resin Generally in 1~100ppm, preferably added in the range of 1~20ppm.

, can be by various additives with any in the polycarbonate resin that the light guide plate injection molded article of the present invention contains Ratio addition, polycarbonate resin pellet can be obtained by following well-known method, i.e. pass through the cold cut of bar mode The polycarbonate resin composition once melted (is shaped to strip, after cooling, is cut into the side of defined shaped pellet by method Method), the hot cut method of fervent mode (by the polycarbonate resin once melted in atmosphere, is not yet touching water in atmosphere When severing method in pellet form), earnestly the hot cut method of mode (is cut out the polycarbonate resin once melted in water in water It is disconnected, while cool down the method for carrying out pellet).Obtained polycarbonate resin pellet be preferably based on used hot-air drying stove, Drying means as vacuum drying oven, dehumidification drying oven is dried.

[evaluation method]

＜ molecular weight ＞

The molecular weight for the polycarbonate resin that the formed body of the present invention contains uses Ubbelohde viscometer, for as shown below Under the conditions of the viscosity average molecular weigh (Mv) that determines evaluated.

＜ viscosity average molecular weighs (Mv) condition determination ＞

Mensuration machine：Ubbelohde capillary viscometer

Solvent：Dichloromethane

Resin solution concentration：0.5 Grams Per Minute liter

Measurement temperature：25℃

It is measured under these conditions, inherent viscosity [η] deciliter/gram is tried to achieve with Huggins constant 0.45, by following Formula (II) is calculated to calculate.

η=1.23 × 10^-4×Mv^0.83 (II)

The viscosity average molecular weigh (Mv) for the polycarbonate resin that the light guide plate injection molded article of the present invention contains is 13,000 Below the above 18,000.It is preferred that viscosity average molecular weigh (Mv) is 14, more than 000 18, less than 000, it is more preferably viscosity average molecular weigh (Mv) it is 15, more than 000 18, less than 000, particularly preferred viscosity average molecular weigh (Mv) is 15, more than 000 17, less than 000.It is viscous equal In the case that molecular weight (Mv) is more than 13,000, mechanical strength improve, below 18,000 in the case of, melt viscosity step-down Mobility is improved, makes the shaping of the large-scale products formed of thin-walled become easy.

＜ volume flow rates (Q values) ＞

The melt fluidity for the polycarbonate resin that the light guide plate of the present invention is contained with injection molded article is to use high formula Flowing test instrument, evaluated based on the volume flow rate (Q values) determined in condition as shown below.Q values are high to represent melt-flow Property it is high, the low expression melt fluidity of Q values is low.

＜ Q value condition determinations ＞

Mensuration machine：Flow behavior evaluating apparatus flowing test instrument

Load-carrying：160kgf/cm²

Aperture：Diameter 1mm × length 10mm

Measurement temperature：240℃

Experiment can be carried out using such as Shimadzu Scisakusho Ltd CFT-500D.

The Q values for the polycarbonate resin that the light guide plate injection molded article of the invention determined with above-mentioned condition determination contains It is preferably 10 × 10 in 240 DEG C of measurement temperature^{- 2}More than cc/sec, it is more preferably 13 × 10^{- 2}More than cc/sec, particularly preferably For 15 × 10^{- 2}More than cc/sec, most preferably 19 × 10^{- 2}More than cc/sec.By being set as such scope, make thin-walled The shaping of large-scale formed body becomes possibility.The production stability of light guide plate injection molded article becomes good, additionally it is possible to suppress into Energy consumption when type body produces.On the other hand, above-mentioned Q values are less than 10 × 10^{- 2}During cc/sec, due to melt fluidity Step-down, it is necessary in hot conditions formed light conductive plate compared with normal conditions, there are increase energy consumption, resin to decompose Tendency.In addition, Q values are preferably 100 × 10^{- 2}Below cc/sec, it is more preferably 80 × 10^{- 2}Below cc/sec.Q values 100 × 10^{- 2}In the case of below cc/sec, having can effectively prevent that geat cold burden is disconnected de- or inclining for the formation problems such as cavity occurs To.

The condition determination ＞ of ＜ glass transition temperatures

Mensuration machine：Differential scanning calorimeter (DSC)

Rate of warming：10 DEG C/min

Air-flow environment：Nitrogen 20ml/ minutes

Sample pre-treatment：300 DEG C of heating are melted

Experiment can use such as Shimadzu Scisakusho Ltd's differential scanning calorimeter (DSC) DSC-50.

The glass transition temperature for the polycarbonate resin that the formed body of the present invention contains is preferably more than 90 DEG C, more preferably For more than 95 DEG C, particularly preferred more than 100 DEG C.By being arranged to such scope, the product of superior for heat resistance can be obtained.Only Above-mentioned glass transition temperature is wanted more than 90 DEG C, it becomes possible to more efficiently prevent from above-mentioned polycarbonate resin during fabrication It is granulated, in drying process, the problem of aggegation occurs for polycarbonate resin powder, and production efficiency significantly reduces.

＜ Izod impact strengths ＞

The impact resistance for the polycarbonate resin that the formed body of the present invention contains is to be based on ASTM-D256, is rushed by Izod Hit intensity is evaluated.Experiment can use such as Toyo Seiki to make made Izod shock machines.

The Izod impact strengths of the formed body of the present invention are preferably more than 30J/m, are more preferably more than 50J/m, especially excellent Select more than 80J/m.By being set as such scope, can more efficiently prevent from shaping when or shaping after formed body cracking, Generation crack.

(purposes)

For the light guide plate of the present invention with injection molded article compared with existing formed body, impact resistance is superior, can be easily Maximized, it is therefore preferable that suitable for liquid crystal backlight unit and various display devices, the light guide plate of field of illuminating device. As the example of such device, can enumerate portable phone, portable computer, net book, tablet personal computer (Slate PC), It is the portable terminal devices such as tablet computer (Tablet PC), smart mobile phone, panel type terminal, camera, wrist-watch, notebook computer, each Kind display, lighting apparatus etc..According to the mode of the present invention, using the teaching of the invention it is possible to provide contain the formed body of the present invention as part Light guide plate.

(forming method)

The light guide plate of the present invention is not particularly limited with the manufacture method of injection molded article, can be used for using any conventional The method of forming of polycarbonate resin.As its example, melt injection molding method, ultrahigh speed injection moulding, injection can be enumerated The hollow molding methods such as compression forming methods, dual-color forming method, gas assisted molding method, the method for forming of heat-insulated mould used, used urgency The method of forming of speed heating mould, extrusion moulding, sheet forming method, hot-forming method, rotoforming, laminated forming method, compacting Method of forming etc..In addition, it can also utilize the method for forming for having used hot flow path mode.Particularly preferred melt injection molding method.

Embodiment

Hereinafter, it is described in detail for the present invention by embodiment, but the present invention is in the limit no more than its purport Under degree, do not limited by following embodiment.Raw material and evaluation method used in following each example is as follows.

The measure ＞ of ＜ molecular weight

The molecular weight for the polycarbonate resin that the formed body obtained in the present embodiment contains is existed by using Ubbelohde viscometer The viscosity average molecular weigh (Mv) determined under the conditions of as shown below is evaluated.

＜ viscosity average molecular weighs (Mv) condition determination ＞

Mensuration machine：Ubbelohde capillary viscosimeter

Solvent：Dichloromethane

Resin solution concentration：0.5 Grams Per Minute liter

Measurement temperature：25℃

It is measured under these conditions, inherent viscosity [η] deciliter/gram is tried to achieve with Huggins constant 0.45, by following Formula (II) is calculated to calculate.

η=1.23 × 10^-4×Mv^0.83 (II)

＜ mouldabilities evaluate ＞

Using injection (mo(u)lding) machine (SODICK company systems " HSP100A "), in 340 DEG C of resin temperature, 80 DEG C of mold temperature will 3.5 inches, thickness 0.4mm guide-lighting template test film shaping, pass through and the deformation of lack of fill or products formed are whether there is during shaping, is opened Split, formed body is evaluated.

＜ Q value condition determinations ＞

Mensuration machine：Flow behavior evaluating apparatus flowing test instrument

Load-carrying：160kgf/cm²

Aperture：Diameter 1mm × length 10mm

Measurement temperature：240℃

Mensuration machine：Shimadzu Scisakusho Ltd CFT-500D

The condition determination ＞ of ＜ glass transition temperatures

Mensuration machine：Differential scanning calorimeter (DSC)

Rate of warming：10 DEG C/minute

Air-flow environment：20ml/ points of nitrogen

Sample pre-treatment：300 DEG C of heating are melted

Mensuration machine：Shimadzu Scisakusho Ltd's differential scanning calorimeter (DSC) DSC-50

＜ Izod impact strengths ＞

The impact resistance of the formed body of the present invention is to be based on STM-D256, by strong for the impact with Izod jaggy Degree is evaluated.

Mensuration machine：Toyo Seiki makes made Izod shock machines

(manufacture of end-capping reagent)

The ＞ of ＜ Production Examples 1

Based on organic chemistry handbook (the 3rd edition：Synthetic Organic Chemistry association compiles：Technology hall issue) page 143~page 150 Record, make the 4-HBA of Tokyo HuaCheng Industry Co., Ltd and the 1- fourths of Tokyo HuaCheng Industry Co., Ltd Alcohol occurs dehydration and is esterified, and obtains butyl p-hydroxybenzoate (end-capping reagent 1).

The ＞ of ＜ Production Examples 2

In addition to n-butyl alcohol is changed into the 2-Ethylhexyl Alcohol of Mitsubishi chemical Co., Ltd, all set with Production Example 1 To be same, P-hydroxybenzoic acid -2- ethylhexyls (end-capping reagent 2) are obtained.

The ＞ of ＜ Production Examples 3

In addition to n-butyl alcohol is changed into the 1- hexadecanols of Tokyo HuaCheng Industry Co., Ltd, all with Production Example 1 is set to same, obtains P-hydroxybenzoic acid cetyl ester (end-capping reagent 3).

The ＞ of ＜ Production Examples 4

In addition to n-butyl alcohol is changed into the 1- tadenans of Tokyo HuaCheng Industry Co., Ltd, all with manufacture Example 1 is set to same, obtains P-hydroxybenzoic acid docosane base ester (end-capping reagent 4).

The ＞ of ＜ Production Examples 5

In addition to n-butyl alcohol is changed into the 1- tetracosanols of Tokyo HuaCheng Industry Co., Ltd, all with manufacture Example 1 is set to same, obtains P-hydroxybenzoic acid lignocerane base ester (end-capping reagent 5).

(manufacture of the light guide plate injection molded article containing polycarbonate resin)

The ＞ of ＜ embodiments 1

Into 9w/w% sodium hydrate aqueous solution 57.2kg, Nippon Steel ＆ Sumitomo Metal Corporation's bisphenol-A is added (BPA) 7.1kg (31.14mol) and bisulfites 30g and dissolve.Thereto add dichloromethane 40kg, stir while Solution temperature is maintained to 15 DEG C~25 DEG C of scope, while lasts 30 minutes and is blown into phosgene 4.33kg.

Phosgene be blown into end after, add 9w/w% sodium hydrate aqueous solution 6kg, dichloromethane 11kg and by 628g The end-capping reagent 2 of (2.51mol) is dissolved in the solution in dichloromethane 10kg, is stirred vigorously after being emulsified, as polymerization Catalyst adds 10ml triethylamine, carries out the polymerization of about 40 minutes.

Polymer fluid is separated into aqueous phase and organic phase, organic phase is neutralized using phosphoric acid, using pure water repeated washing until The pH of washing lotion reaches neutral.By the way that organic solvent evaporation is removed to obtain poly- carbon from the refined polycarbonate resin solution Acid ester resin powder.

Obtained polycarbonate resin powder is moulded by the screw rod footpath 40mm single axle extruding machine (Tian side with ventilating opening Expect Mechanology Inc.'s system " VS-40 "), in barrel temperature, 240 DEG C carry out melting kneading, and pellet is obtained by slitting.

Using obtained polycarbonate resin pellet, viscosity average molecular weigh, glass transition temperature, Q values measure, knot are implemented Fruit finds that viscosity average molecular weigh 18,000, glass transition temperature is 125 DEG C of (Tg), and Q values are 10 × 10^{- 2}cc/sec。

Using hot air circulation type drying machine by obtained pellet 100 DEG C dry 5~7 hours after, pass through injection (mo(u)lding) machine (SHINKO SELLBIC company systems " C-Mobile "), in 80 DEG C of 300 DEG C of resin temperature, mold temperature shaping Izod impact tests With test film, implemented according to ASTM D256 with Izod impact tests jaggy.

The measurement result of Izod impact strengths is 450J/m.

Then using obtained dried granules, using injection (mo(u)lding) machine (SODICK company systems " HSP100A "), in resin temperature The guide-lighting template test film for the thickness 0.4mm that 340 DEG C of degree, 80 DEG C of mold temperature have been molded 3.5 inches.Confirm what is now occurred Mouldability as the deformation of lack of fill or formed body, cracking.It will have no problem and can obtain good in mouldability The situation of formed body is labeled as "○", will occur problem and insufficient formability situation mark for "×".

Good forming ability.

The ＞ of ＜ embodiments 2

In addition to by the quantitative change of end-capping reagent 2 more 643g (2.57mol), poly- carbon has all been obtained similarly to Example 1 Acid ester resin pellet and formed body.

The viscosity average molecular weigh of obtained polycarbonate resin is 16,500, and glass transition temperature (Tg) is 120 DEG C, Q values For 15 × 10^{- 2}Cc/sec, Izod impact strength are 190J/m, good forming ability.

The ＞ of ＜ embodiments 3

In addition to by the quantitative change of end-capping reagent 2 more 818g (3.27mol), poly- carbon has all been obtained similarly to Example 1 Acid ester resin pellet and formed body.

The viscosity average molecular weigh of obtained polycarbonate resin is 15,000, and glass transition temperature (Tg) is 118 DEG C, Q values For 27 × 10^{- 2}Cc/sec, Izod impact strength are 200J/m, good forming ability.

The ＞ of ＜ embodiments 4

In addition to by the quantitative change of end-capping reagent 2 more 943g (3.77mol), poly- carbon has all been obtained similarly to Example 1 Acid ester resin pellet and formed body.

The viscosity average molecular weigh of obtained polycarbonate resin is 13,000, and glass transition temperature (Tg) is 99 DEG C, and Q values are 70×10^{- 2}Cc/sec, Izod impact strength are 50J/m, good forming ability.

The ＞ of ＜ embodiments 5

In addition to 628g (2.51mol) end-capping reagent 2 to be changed to 897g (2.47mol) end-capping reagent 3, all with implementation Example 1 has similarly obtained polycarbonate resin pellet and formed body.

The viscosity average molecular weigh of obtained polycarbonate resin is 18,000, and glass transition temperature (Tg) is 115 DEG C, Q values For 20 × 10^{- 2}Cc/sec, Izod impact strength are 350J/m, good forming ability.

The ＞ of ＜ embodiments 6

In addition to 628g (2.51mol) end-capping reagent 2 to be changed to 1143g (3.15mol) end-capping reagent 3, all with reality Apply example 1 and similarly obtain polycarbonate resin pellet and formed body.

The viscosity average molecular weigh of obtained polycarbonate resin is 15,000, and glass transition temperature (Tg) is 104 DEG C, Q values For 35 × 10^{- 2}Cc/sec, Izod impact strength are 180J/m, good forming ability.

The ＞ of ＜ embodiments 7

In addition to 628g (2.51mol) end-capping reagent 2 to be changed to 1310g (3.61mol) end-capping reagent 3, all with reality Apply example 1 and similarly obtain polycarbonate resin pellet and formed body.

The viscosity average molecular weigh of obtained polycarbonate resin is 13,000, and glass transition temperature (Tg) is 95 DEG C, and Q values are 57×10^{- 2}Cc/sec, Izod impact strength are 50J/m, good forming ability.

The ＞ of ＜ embodiments 8

In addition to 628g (2.51mol) end-capping reagent 2 to be changed to 1565g (3.51mol) end-capping reagent 4, all with reality Apply example 1 and similarly obtain polycarbonate resin pellet and formed body.

The viscosity average molecular weigh of obtained polycarbonate resin is 18,000, and glass transition temperature (Tg) is 110 DEG C, Q values For 19 × 10^{- 2}Cc/sec, Izod impact strength are 300J/m, good forming ability.

The ＞ of ＜ embodiments 9

In addition to 628g (2.51mol) end-capping reagent 2 to be changed to 1717g (3.85mol) end-capping reagent 4, all with reality Apply example 1 and similarly obtain polycarbonate resin pellet and formed body.

The viscosity average molecular weigh of obtained polycarbonate resin is 16,000, and glass transition temperature (Tg) is 101 DEG C, Q values For 35 × 10^{- 2}Cc/sec, Izod impact strength are 190J/m, good forming ability.

The ＞ of ＜ embodiments 10

In addition to 628g (2.51mol) end-capping reagent 2 to be changed to 2130g (4.78mol) end-capping reagent 4, all with reality Apply example 1 and similarly obtain polycarbonate resin pellet and formed body.

The viscosity average molecular weigh of obtained polycarbonate resin is 13,000, and glass transition temperature (Tg) is 90 DEG C, and Q values are 70×10^{- 2}Cc/sec, Izod impact strength are 50J/m, good forming ability.

The ＞ of ＜ comparative examples 1

In addition to 628g (2.51mol) end-capping reagent 2 to be changed to 448g (2.31mol) end-capping reagent 1, all with implementation Example 1 has similarly obtained polycarbonate resin pellet and formed body.

The viscosity average molecular weigh of obtained polycarbonate resin is 15,000, and glass transition temperature (Tg) is 128 DEG C, Q values For 9 × 10^{- 2}Cc/sec, Izod impact strength are 230J/m, insufficient formability.

The ＞ of ＜ comparative examples 2

In addition to by the quantitative change of end-capping reagent 2 more 291g (1.16mol), poly- carbon has all been obtained similarly to Example 1 Acid ester resin pellet and formed body.

The viscosity average molecular weigh of obtained polycarbonate resin is 24,000, and glass transition temperature (Tg) is 138 DEG C, Q values For 1 × 10^{- 2}Cc/sec, Izod impact strength are 700J/m, insufficient formability.

The ＞ of ＜ comparative examples 3

In addition to by the quantitative change of end-capping reagent 2 more 1171g (4.69mol), poly- carbon has all been obtained similarly to Example 1 Acid ester resin pellet and formed body.

The viscosity average molecular weigh of obtained polycarbonate resin is 10,000, and glass transition temperature (Tg) is 85 DEG C, and Q values are 104×10^{- 2}Cc/sec, Izod impact strength are 10J/m, insufficient formability.

The ＞ of ＜ comparative examples 4

In addition to 628g (2.51mol) end-capping reagent 2 to be changed to 730g (2.01mol) end-capping reagent 3, all with implementation Example 1 has similarly obtained polycarbonate resin pellet and formed body.

The viscosity average molecular weigh of obtained polycarbonate resin is 20,000, and glass transition temperature (Tg) is 119 DEG C, Q values For 9 × 10^{- 2}Cc/sec, Izod impact strength are 530J/m, insufficient formability.

The ＞ of ＜ comparative examples 5

In addition to 628g (2.51mol) end-capping reagent 2 to be changed to 1775g (4.89mol) end-capping reagent 3, all with reality Apply example 1 and similarly obtain polycarbonate resin pellet and formed body.

The viscosity average molecular weigh of obtained polycarbonate resin is 10,000, and glass transition temperature (Tg) is 71 DEG C, and Q values are 93×10^{- 2}Cc/sec, Izod impact strength are 10J/m, insufficient formability.

The ＞ of ＜ comparative examples 6

In addition to 628g (2.51mol) end-capping reagent 2 to be changed to 1267g (2.84mol) end-capping reagent 4, all with reality Apply example 1 and similarly obtain polycarbonate resin pellet and formed body.

The viscosity average molecular weigh of obtained polycarbonate resin is 22,000, and glass transition temperature (Tg) is 117 DEG C, Q values For 4 × 10^{- 2}Cc/sec, Izod impact strength are 650J/m, insufficient formability.

The ＞ of ＜ comparative examples 7

In addition to 628g (2.51mol) end-capping reagent 2 to be changed to 2163g (4.85mol) end-capping reagent 4, all with reality Apply example 1 and similarly obtain polycarbonate resin pellet and formed body.

The viscosity average molecular weigh of obtained polycarbonate resin is 10,000, and glass transition temperature (Tg) is 80 DEG C, and Q values are 90×10^{- 2}Cc/sec, Izod impact strength are 10J/m, insufficient formability.

The ＞ of ＜ comparative examples 8

In addition to 628g (2.51mol) end-capping reagent 2 to be changed to 1824g (3.85mol) end-capping reagent 5, all with reality Apply example 1 and similarly obtain polycarbonate resin pellet and formed body.

The viscosity average molecular weigh of obtained polycarbonate resin is 16,000, and glass transition temperature (Tg) is 85 DEG C, and Q values are 36×10^{- 2}Cc/sec, Izod impact strength are 180J/m, insufficient formability.

[table 1]

By containing the superior polycarbonate resin of above-mentioned such mobility, impact strength, using the teaching of the invention it is possible to provide impact resistance Good light guide plate injection molded article.

Industrial applicability

The formed body of polycarbonate resin containing the present invention can perform well in needing the mobility of high resin, resist The light guide plate injection molded article of impact, usability industrially are very high.

The present invention includes following mode.

A kind of light guide plate injection molded articles of the ＞ of ＜ 1, the unitary phenol represented by following formulas (1a) is made wherein including The polycarbonate resin for being reacted to obtain for end-capping reagent.

(in formula, R₁Represent the alkyl of carbon number 5~23 or the alkenyl of carbon number 8~36.R₂~R₅Separately Represent hydrogen, halogen, can be with the carbon number 1~20 of substituent alkyl and can the carbon number 6 with substituent~ Any of 12 aryl.)

Formed bodys of the ＞ of ＜ 2 as described in the ＞ of ＜ 1, wherein the polycarbonate resin contains represented by following formulas (2) Construction unit.

(in formula, R₆~R₁₃Separately represent hydrogen, halogen, can have substituent carbon number 1~5 alcoxyl Base atomic group (alkoxyl group), can the alkyl with the carbon number 1~20 of substituent, can be with substituent The alkoxy (alkoxy group) of carbon number 1~5, can have substituent carbon number 6~12 aryl, can have The aralkyl of the carbon number 7~17 of substituted base and any in the alkenyl of the carbon number 2~15 can with substituent Kind, X is singly-bound ,-O- ,-S- ,-SO- ,-SO₂-, any of-CO- and following formulas (3)~(6) knot Structure.)

(in formula, R₁₄And R₁₅Separately represent hydrogen, halogen, can have substituent carbon number 1~20 alkane Base, can the alkoxy with the carbon number 1~5 of substituent, can the aryl with the carbon number 6~12 of substituent, Alkenyl that can be with the carbon number 2~5 of substituent and can be in the aralkyl with the carbon number 7~17 of substituent Any, c represents 1~20 integer)

(in formula, R₁₆And R₁₇Separately represent hydrogen, halogen, can have substituent carbon number 1~20 alkane Base, can the alkoxy with the carbon number 1~5 of substituent, can the aryl with the carbon number 6~12 of substituent, Alkenyl that can be with the carbon number 2~5 of substituent and can be in the aralkyl with the carbon number 7~17 of substituent It is any, R₁₆And R₁₇It can be mutually bonded and form the carbocyclic ring or heterocycle of carbon number 1~20.)

(in formula, R₁₈~R₂₁Separately represent hydrogen, halogen, can have substituent carbon number 1~20 alkane Base, can the alkoxy with the carbon number 1~5 of substituent, can the aryl with the carbon number 6~12 of substituent, Alkenyl that can be with the carbon number 2~5 of substituent and can be in the aralkyl with the carbon number 7~17 of substituent It is any, R₁₈And R₁₉And R₂₀And R₂₁It can be mutually bonded and form the carbocyclic ring or heterocycle of carbon number 1~20.)

(in formula, R₂₂~R₃₁It is separately hydrogen atom or the alkyl of carbon number 1~3.

Formed bodys of the ＞ of ＜ 3 as described in the ＞ of ＜ 1 or the ＞ of ＜ 2, wherein the viscosity average molecular weigh of the polycarbonate resin is 13,000~18,000.

Formed bodys of the ＞ of ＜ 4 as any one of the ＞ of 1 ＞ of ＜~＜ 3, wherein the formula (1a) is following formulas (8a)。

(in formula, R₁For the alkyl of carbon number 5~23.)

Formed bodys of the ＞ of ＜ 5 as described in the ＞ of ＜ 4, wherein the R in the formula (8a)₁For selected from 2- ethylhexyls, It is more than any one in 2- hexyls decyl and cetyl.

Formed bodys of the ＞ of ＜ 6 as any one of the ＞ of 2 ＞ of ＜~＜ 5, wherein the X in the formula (2) is described logical Formula (3).

Formed bodys of the ＞ of ＜ 7 as any one of the ＞ of 1 ＞ of ＜~＜ 6, wherein the Q values of the polycarbonate resin are 10 ×10^{- 2}More than cc/sec.

Formed bodys of the ＞ of ＜ 8 as any one of the ＞ of 1 ＞ of ＜~＜ 7, wherein the Izod punchings of the polycarbonate resin Hit intensity is more than 30J/m.

Formed bodys of the ＞ of ＜ 9 as any one of the ＞ of 1 ＞ of ＜~＜ 8, wherein the vitrifying of the polycarbonate resin Transition temperature is more than 90 DEG C.

A kind of light guide plate of the formed bodys contained any one of the ＞ of 1 ＞ of ＜~＜ 9 of the ＞ of ＜ 10 as part.

Claims (9)

1. A kind of 1. light guide plate injection molded article, it is characterised in that

   Containing the end structure shown in following formulas (1), and viscosity average molecular weigh is 13,000~18,000 makrolon Resin,

   In formula,

   R₁The alkyl of carbon number 5~23 or the alkenyl of carbon number 8~36 are represented,

   R₂~R₅Separately represent hydrogen, halogen, can be with the carbon number 1~20 of substituent alkyl and can be with Any of aryl of carbon number 6~12 of substituent.
2. 2. formed body as claimed in claim 1, it is characterised in that

   The polycarbonate resin is the resin containing the construction unit represented by following formulas (2),

   In formula,

   R₆~R₁₃Separately represent hydrogen, halogen, can have substituent carbon number 1~5 alkoxyl group, can With the alkyl of the carbon number 1~20 with substituent, can the alkoxy with the carbon number 1~5 of substituent, can have The aryl of the carbon number 6~12 of substituted base, can be with the carbon number 7~17 of substituent aralkyl and can be with Any of alkenyl of carbon number 2~15 of substituent,

   X is singly-bound ,-O- ,-S- ,-SO- ,-SO₂-, any of-CO- and following formulas (3)~(6) structure；

   In formula,

   R₁₄And R₁₅Separately represent hydrogen, halogen, can the alkyl with the carbon number 1~20 of substituent, can be with The alkoxy of the carbon number 1~5 of substituent, can the aryl with the carbon number 6~12 of substituent, can with substitution The alkenyl of the carbon number 2~5 of base and any of the aralkyl of carbon number 7~17 can with substituent,

   C represents 1~20 integer；

   In formula, R₁₆And R₁₇Separately represent hydrogen, halogen, can have substituent carbon number 1~20 alkyl, can be with The alkoxy of carbon number 1~5 with substituent, can the aryl with the carbon number 6~12 of substituent, can be with The alkenyl of the carbon number 2~5 of substituent and any of the aralkyl of carbon number 7~17 can with substituent, R₁₆And R₁₇It can be mutually bonded and form the carbocyclic ring or heterocycle of carbon number 1~20；

   In formula, R₁₈~R₂₁Separately represent hydrogen, halogen, can have substituent carbon number 1~20 alkyl, can be with The alkoxy of carbon number 1~5 with substituent, can the aryl with the carbon number 6~12 of substituent, can be with The alkenyl of the carbon number 2~5 of substituent and any of the aralkyl of carbon number 7~17 can with substituent, R₁₈And R₁₉And R₂₀And R₂₁It can be mutually bonded and form the carbocyclic ring or heterocycle of carbon number 1~20；

   In formula, R₂₂~R₃₁It is separately hydrogen atom or the alkyl of carbon number 1~3.
3. 3. formed body as claimed in claim 1 or 2, it is characterised in that

   The end structure has the structure shown in following formulas (8),

   In formula, R₁For the alkyl of carbon number 5~23.
4. 4. formed body as claimed in claim 3, it is characterised in that

   R in the formula (8)₁For appointing in 2- ethylhexyls, 2- hexyls decyl, cetyl and docosyl Anticipate more than one.
5. 5. the formed body as any one of claim 2~4, it is characterised in that

   X in the formula (2) has the structure of the formula (3).
6. 6. such as formed body according to any one of claims 1 to 5, it is characterised in that

   The Q values of the polycarbonate resin are 10 × 10^{- 2}More than cc/sec.
7. 7. such as formed body according to any one of claims 1 to 6, it is characterised in that

   The Izod impact strengths of the polycarbonate resin are more than 30J/m.
8. 8. such as formed body according to any one of claims 1 to 7, it is characterised in that

   The glass transition temperature of the polycarbonate resin is more than 90 DEG C.
9. A kind of 9. light guide plate, it is characterised in that

   Contain formed body according to any one of claims 1 to 8 as part.