CN106832225A - A kind of chain extender for preparing expandable PET resin and preparation method thereof - Google Patents
A kind of chain extender for preparing expandable PET resin and preparation method thereof Download PDFInfo
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- CN106832225A CN106832225A CN201710097191.1A CN201710097191A CN106832225A CN 106832225 A CN106832225 A CN 106832225A CN 201710097191 A CN201710097191 A CN 201710097191A CN 106832225 A CN106832225 A CN 106832225A
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- chain extender
- pet resin
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- expandable pet
- preparation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/50—Amines
- C08G59/504—Amines containing an atom other than nitrogen belonging to the amine group, carbon and hydrogen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/68—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the catalysts used
- C08G59/686—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the catalysts used containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/91—Polymers modified by chemical after-treatment
- C08G63/914—Polymers modified by chemical after-treatment derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/916—Dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G81/00—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers
Abstract
The present invention relates to a kind of chain extender for preparing expandable PET resin and preparation method thereof, the preparation method for preparing the chain extender of expandable PET resin is at least comprised the following steps：(1) polyetheramine is mixed with epoxy resin, wherein, the molal quantity of the molal quantity more than the hydrogen on amino in polyetheramine of epoxy resin epoxide epoxy group group；(2) to accelerator, and 2~6h of stirring at a certain temperature is added in step (1), standing is cooled to room temperature, obtains the chain extender for preparing expandable PET resin.
Description
Technical field
The present invention relates to polymer arts, more particularly to a kind of chain extender and its system for preparing expandable PET resin
Preparation Method.
Technical background
Polyethylene terephthalate (PET) foam is by by expandable PET resin and foaming agent, nucleator, anti-
Oxygen agent etc. mixes in proportion, is obtained by methods such as extrusion foaming or moulded from foam.By its excellent mechanical property, heat resistance
Energy and barrier property, PET foams have a wide range of applications in fields such as packaging for foodstuff, automobile space flight and track traffics.Together
When, the extensive cheap, production process of its raw material is automatic continuous, finished product recoverable, and Jiao of market survey is increasingly becoming at present
Point.
Suitable expandable PET resin is the key for preparing high performance PE T foams.Conventional PET resin in melting due to connecting
During supervention bubble, melt strength and melt viscosity are smaller, and melt rheological property can be poor, it is impossible to support the growth of abscess and determine
Type；Also, conventional PET resin is susceptible to hydrolyze at high temperature, is pyrolyzed and thermal oxidative degradation, cause to cannot get in foaming process
Good abscess.Accordingly, it would be desirable to chain extension is carried out to conventional PET resin be modified, increase chain branching degree, improve melt strength.Mesh
Before, it is the most frequently used means that chemical modification is carried out to conventional PET resin using chain extender.Geroge P are prepared for 2,2-(1,4-
Phenylene) double (bisoxazolines) and chain extender is made with it, PET is modified.Before the viscosity of PET resin is by viscosifying
0.69dL/g is increased to the 0.85dL/g after thickening, has reached good Efficient Adhesive Promotion [Journal of Applied
Polymer Science,2000,77(6):2206-2211].The country also has the isocyanuric acid such as relevant report, Liu Tao three to shrink
, to inherent viscosity for the PET resin of 0.6-0.7dL/g is modified, inherent viscosity is improved for glycerin ether and pyromellitic dianhydride combination
More than 50%.Therefore, thickening purpose [number of patent application is preferably realized using method associated with chain extender：
201410231323.1；Application publication number：CN 105273368A].These chain extenders have following shortcoming：(1) these chain extensions
Agent can only often react with PET carboxyls or C-terminal, and degree of branching is low, viscosifies inefficiency；(2) these chain extenders and PET
The reaction of carboxyl or C-terminal is polycondensation reaction, has small molecule product to produce, and influences the uniformity of final foamed products；(3)
Isocyanuric acid class chain extender at high temperature itself easily autohemagglutination so that chain branching process is uncontrollable；(4) isocyanuric acid class chain extender
Toxicity is larger.Isocyanuric acid class chain extender is not helped the toughness for improving PET resin.
Thus, in order to solve the above-mentioned technical problem, it is also very desirable to which a kind of new PET resin is synthesized by the improvement of technique
Chain extender.
The content of the invention
Regarding to the issue above, one side of the invention provides a kind of chain extender for preparing expandable PET resin
Preparation method, at least comprise the following steps：
(1) polyetheramine is mixed with epoxy resin, wherein, the molal quantity of epoxy resin epoxide epoxy group group is more than in polyetheramine
The molal quantity of the hydrogen on amino；
(2) to accelerator, and 2~6h of stirring at a certain temperature is added in step (1), standing is cooled to room temperature, obtains
To the chain extender for preparing expandable PET resin.
Used as preferred embodiment of the invention, the polyetheramine is selected from：Jeffamine T5000、Jeffamine
Any one or a few mixing in T3000, Jeffamine D2000.
Used as preferred embodiment of the invention, the epoxy resin is selected from：Bisphenol A type epoxy resin, bisphenol-f type ring
Any one or a few mixing in oxygen tree fat, aliphatic epoxy resin.
Used as preferred embodiment of the invention, the accelerator is selected from：Three-(dimethylamino methyl) phenol, diformazan
Any one or a few mixing in base benzylamine, methylimidazole.
As preferred embodiment of the invention, the hydrogen in the epoxy resin epoxide epoxy group group and polyetheramine on amino
Mol ratio be (2~10):1.
As preferred embodiment of the invention, the hydrogen in the epoxy resin epoxide epoxy group group and polyetheramine on amino
Mol ratio be (3~6):1.
Used as preferred embodiment of the invention, the temperature is more than 100 DEG C.
Another aspect provides the expansion for preparing expandable PET resin obtained using above-mentioned preparation method
Chain agent.
Another aspect of the invention provides expandable PET resin, including above-mentioned for preparing expandable PET resin
Chain extender.
Used as preferred embodiment of the invention, the inherent viscosity of the expandable PET resin is 1.0-1.5dL/g.
Compared with prior art, the beneficial effects of the present invention are：
1st, due to still having substantial amounts of epoxy radicals in the significantly excessive therefore final addition product of reactant epoxide epoxy group group
Group.Epoxide group can react with PET carboxyls and C-terminal, and degree of branching is high, lifting thickening efficiency.
2nd, the reaction of epoxide group and carboxyl and hydroxyl is addition reaction, will not produce small molecule.
3rd, epoxy resin is reacted due to some group with polyetheramine, remaining epoxide group due to steric effect not
It is susceptible to self-polymeric reaction.
4th, in addition product amino total overall reaction is fallen, remaining epoxide group toxicity is low.
5th, addition product has polyether skeleton, and tenacity excellent can improve the shock resistance of PET as chain extender.
Specific embodiment
Unless otherwise defined, all technologies used herein and scientific terminology have and the common skill of art of the present invention
The identical implication that art personnel are generally understood that.When there is contradiction, the definition in this specification is defined.
Quality, concentration, temperature, time or other values or parameter are preferred with scope, preferred scope or a series of upper limits
During the Range Representation that value and lower preferable values are limited, this is appreciated that and specifically discloses by any range limit or preferred value
The all scopes formed with any pairing of any range lower limit or preferred value, regardless of whether whether the scope separately discloses.
For example, the scope of 1-50 be understood to include selected from 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,
19、20、21、22、23、24、25、26、27、28、29、30、31、32、33、34、35、36、37、38、39、40、41、42、43、
44th, 45,46,47,48,49 or 50 any numeral, number combinatorics on words or subrange and all between above-mentioned integer
Fractional value, for example, 1.1,1.2,1.3,1.4,1.5,1.6,1.7,1.8 and 1.9.It is specific to consider from scope on subrange
Interior any end points starts " the nested subrange " for extending.For example, the nested subrange of exemplary range 1-50 can include
1-10,1-20,1-30 and 1-40 on one direction, or 50-40,50-30,50-20 and 50-10 on other direction.
Regarding to the issue above, one side of the invention provides a kind of chain extender for preparing expandable PET resin
Preparation method, at least comprise the following steps：
(1) polyetheramine is mixed with epoxy resin, wherein, the molal quantity of epoxy resin epoxide epoxy group group is more than in polyetheramine
The molal quantity of the hydrogen on amino；
(2) to accelerator, and 2~6h of stirring at a certain temperature is added in step (1), standing is cooled to room temperature, obtains
To the chain extender for preparing expandable PET resin.
Polyetheramine
Polyetheramine in the present invention is commercially available acquisition.
In a preferred embodiment, the polyetheramine is selected from：Jeffamine T5000、Jeffamine
Any one or a few mixing in T3000, Jeffamine D2000.
Jeffamine T5000, Jeffamine T3000, Jeffamine D2000 are the trade mark of product, are U.S.
The polyetheramine of HUNTSMAN companies of state production.
Polyetheramine in the present invention is not limited to these three, and the polyetheramine of other trades mark can also realize technology effect of the invention
Really.
Epoxy resin
Epoxy resin in the present invention is commercially available acquisition.
In a preferred embodiment, the epoxy resin is selected from：Bisphenol A type epoxy resin, bisphenol F type epoxy tree
Any one or a few mixing in fat, aliphatic epoxy resin.
What described aliphatic epoxy resin can be enumerated has：Hydrogenated bisphenol A diglycidyl ether, A Hydrogenated Bisphenol A F bis- contract
Water glycerin ether, cylohexanediol diglycidyl ether, cyclohexanedimethanol diglycidyl ether, tetrahydrophthalic acid 2-glycidyl
Ester, the hydrogen phthalate 2-glycidyl ester of methyl four, hexahydrophthalic acid 2-glycidyl ester, double (2,3- epoxy basic rings penta
Base) ether, 2,3- epoxy radicals cyclopenta rings amyl ether, VCH diepoxide, 3,4- epoxy radicals -6- methylcyclohexyls
Formic acid -3,4- epoxy radicals -6- methylcyclohexyls methyl esters, 3,4- expoxycyclohexyls formic acid -3,4- expoxycyclohexyls methyl esters,
Diacid two (3,4- epoxy radicals -6- methylcyclohexyls methyl esters), bicyclopentadiene diepoxide, 3,4- epoxycyclohexyl-methyls,
3,4- epoxycyclohexyl formic acid esters, 1,2- epoxy -4- vinyl cyclohexanes, (methyl) acrylic acid 3,4- epoxycyclohexanecarboxylates,
The known alicyclic rings such as 3,4- epoxycyclohexyl-methyls, double (3,4- epoxycyclohexyl-methyls) adipate esters, limonene epoxides
Race's epoxy resin.
As preferred embodiment of the invention, the hydrogen in the epoxy resin epoxide epoxy group group and polyetheramine on amino
Mol ratio be (2~10):1.
Accelerator
Accelerator in the present invention is commercially available acquisition.
In a preferred embodiment, the accelerator is selected from：Three-(dimethylamino methyl) phenol, dimethylbenzyl
Any one or a few mixing in amine, methylimidazole.
In a preferred embodiment, described temperature is more than 100 DEG C；Preferably, described temperature is 100 DEG C
~180 DEG C；More preferably 105 DEG C~150 DEG C；Most preferably 110 DEG C.
Another aspect provides the expansion for preparing expandable PET resin obtained using above-mentioned preparation method
Chain agent.
Another aspect of the invention provides expandable PET resin, including above-mentioned for preparing expandable PET resin
Chain extender.
Used as preferred embodiment of the invention, the inherent viscosity of the expandable PET resin is 1.0-1.5dL/g.
Implementation method 1：Embodiment of the present invention 1 provides a kind of preparation for preparing the chain extender of expandable PET resin
Method, at least comprises the following steps：
(1) polyetheramine is mixed with epoxy resin, wherein, the molal quantity of epoxy resin epoxide epoxy group group is more than in polyetheramine
The molal quantity of the hydrogen on amino；
(2) to accelerator, and 2~6h of stirring at a certain temperature is added in step (1), standing is cooled to room temperature, obtains
To the chain extender for preparing expandable PET resin.
Implementation method 2：Embodiment of the present invention 2 is identical with implementation method 1, and difference is that the polyetheramine is selected from：
Any one or a few mixing in Jeffamine T5000, Jeffamine T3000, Jeffamine D2000.
Implementation method 3：Embodiment of the present invention 3 is identical with implementation method 1, and difference is that the epoxy resin is selected from：
Any one or a few mixing in bisphenol A type epoxy resin, bisphenol f type epoxy resin, aliphatic epoxy resin.
Implementation method 4：Embodiment of the present invention 4 is identical with implementation method 1, and difference is that the accelerator is selected from：
Any one or a few mixing in three-(dimethylamino methyl) phenol, dimethyl benzylamine, methylimidazole.
Implementation method 5：Embodiment of the present invention 5 is identical with implementation method 1, and difference is, the epoxy resin middle ring
The mol ratio of the hydrogen in oxygen groups and polyetheramine on amino is (2~10):1.
Implementation method 6：Embodiment of the present invention 6 is identical with implementation method 5, and difference is, the epoxy resin middle ring
The mol ratio of the hydrogen in oxygen groups and polyetheramine on amino is (3~6):1.
Implementation method 7：Embodiment of the present invention 7 is identical with implementation method 1, and difference is, the temperature be 100 DEG C with
On.
Implementation method 8：Embodiment of the present invention 8 provides the expandable for preparing of 1~implementation method of implementation method 7
The chain extender for preparing expandable PET resin that the preparation method of the chain extender of PET resin is obtained.
Implementation method 9：Embodiment of the present invention 9 provides a kind of expandable PET resin, including described in implementation method 8
Chain extender for preparing expandable PET resin.
Implementation method 10：Embodiment of the present invention 10 is identical with implementation method 9, and difference is, the expandable PET trees
The inherent viscosity of fat is 1.0~1.5dL/g.
The present invention is specifically described below by embodiment.Be necessary it is pointed out here that, following examples are only used
In the invention will be further described, it is impossible to be interpreted as limiting the scope of the invention, professional and technical personnel in the field
Some nonessential modifications and adaptations that content according to the invention described above is made, still fall within protection scope of the present invention.
In addition, if without other explanations, raw materials used is all commercially available, and number used by following material is weight
Part.
Embodiment 1：
Embodiment 1 provides a kind of preparation method for preparing the chain extender of expandable PET resin, comprises the following steps：
(1) by polyetheramine (Jeffamine T5000) and epoxy resin (bisphenol A epoxide resin and bisphenol F epoxy resin
Mixture, bisphenol A epoxide resin is 1 with the mol ratio of bisphenol F epoxy resin：1) mix, wherein, epoxy in the epoxy resin
The mol ratio of the hydrogen in group and polyetheramine on amino is 4:1；
(2) to accelerator (three-(dimethylamino methyl) phenol) is added in step (1), the weight of accelerator is polyetheramine
With the 1% of epoxy resin gross weight, and at 120 DEG C, stirring reaction 4h, standing is cooled to room temperature, obtains for preparing and can send out
Steep the chain extender of PET resin.
Chain extender in embodiment 1 is used to prepare expandable PET resin, the inherent viscosity of former PET resin is 0.65dL/
G, after adding chain extender, the inherent viscosity of the expandable PET for obtaining is 1.05dL/g.
Embodiment 2：
Embodiment 2 provides a kind of preparation method for preparing the chain extender of expandable PET resin, comprises the following steps：
(1) polyetheramine (Jeffamine T3000) is mixed with epoxy resin (bisphenol F epoxy resin), wherein, the ring
The mol ratio of the hydrogen in oxygen tree fat epoxide epoxy group group and polyetheramine on amino is 5:1；
(2) to accelerator (dimethyl benzylamine) is added in step (1), the weight of accelerator is that polyetheramine and epoxy resin are total
The 1% of weight, and at 105 DEG C, stirring reaction 3h, standing is cooled to room temperature, obtains the expansion for preparing expandable PET resin
Chain agent.
Chain extender in embodiment 2 is used to prepare expandable PET resin, the inherent viscosity of former PET resin is 0.65dL/
G, after adding chain extender, the inherent viscosity of the expandable PET for obtaining is 1.12dL/g.
Embodiment 3：
Embodiment 3 provides a kind of preparation method for preparing the chain extender of expandable PET resin, comprises the following steps：
(1) by polyetheramine (JeffamineD2000) and epoxy resin (bisphenol A epoxide resin and aliphatic epoxy resin
Mixture) mixing, wherein, the mol ratio of the hydrogen in the epoxy resin epoxide epoxy group group and polyetheramine on amino is 5:1；
(2) to accelerator (methylimidazole) is added in step (1), the weight of accelerator is polyetheramine and epoxy resin gross weight
The 1% of amount, and at 110 DEG C, stirring reaction 5h, standing is cooled to room temperature, obtains the chain extension for preparing expandable PET resin
Agent.
Chain extender in embodiment 3 is used to prepare expandable PET resin, the inherent viscosity of former PET resin is 0.62dL/
G, after adding chain extender, the inherent viscosity of the expandable PET for obtaining is 1.09dL/g.
Embodiment 4：
Embodiment 4 provides a kind of preparation method for preparing the chain extender of expandable PET resin, comprises the following steps：
(1) polyetheramine (Jeffamine T3000) is mixed with epoxy resin (bisphenol A epoxide resin), wherein, the ring
The mol ratio of the hydrogen in oxygen tree fat epoxide epoxy group group and polyetheramine on amino is 3:1；
(2) to accelerator (three-(dimethylamino methyl) phenol) is added in step (1), the weight of accelerator is polyetheramine
With the 1% of epoxy resin gross weight, and at 110 DEG C, stirring reaction 4h, standing is cooled to room temperature, obtains for preparing and can send out
Steep the chain extender of PET resin.
Chain extender in embodiment 4 is used to prepare expandable PET resin, the inherent viscosity of former PET resin is 0.68dL/
G, after adding chain extender, the inherent viscosity of the expandable PET for obtaining is 1.25dL/g.
Embodiment 5：
Embodiment 5 provides a kind of preparation method for preparing the chain extender of expandable PET resin, comprises the following steps：
(1) by polyetheramine (Jeffamine T3000, Jeffamine T5000 mixture, Jeffamine T3000,
The mol ratio of Jeffamine T5000 is 1：1) mix with epoxy resin (cylohexanediol diglycidyl ether), wherein, the ring
The mol ratio of the hydrogen in oxygen tree fat epoxide epoxy group group and polyetheramine on amino is 8:1；
(2) to accelerator (three-(dimethylamino methyl) phenol) is added in step (1), the weight of accelerator is polyetheramine
With the 1% of epoxy resin gross weight, and at 150 DEG C, stirring reaction 5h, standing is cooled to room temperature, obtains for preparing and can send out
Steep the chain extender of PET resin.
Chain extender in embodiment 5 is used to prepare expandable PET resin, the inherent viscosity of former PET resin is 0.65dL/
G, after adding chain extender, the inherent viscosity of the expandable PET for obtaining is 1.35dL/g.
Foregoing example is merely illustrative, some features of the feature for explaining the disclosure.Appended claim
The scope as wide as possible for requiring to be contemplated that is intended to, and embodiments as presented herein is only according to all possible embodiment
Combination selection implementation method explanation.Therefore, the purpose of applicant is appended claim not by the explanation present invention
Feature example selectional restriction.And the progress in science and technology by formed language performance it is inaccurate due to and not
The possible equivalent or son being presently considered are replaced, and these changes should also be interpreted by appended in the conceived case
Claim is covered.
Claims (10)
1. a kind of preparation method for preparing the chain extender of expandable PET resin, it is characterised in that at least including following step
Suddenly：
(1) polyetheramine is mixed with epoxy resin, wherein, the molal quantity of epoxy resin epoxide epoxy group group is more than amino in polyetheramine
On hydrogen molal quantity；
(2) to accelerator, and 2~6h of stirring at a certain temperature is added in step (1), standing is cooled to room temperature, is used
In the chain extender for preparing expandable PET resin.
2. the preparation method for preparing the chain extender of expandable PET resin according to claim 1, it is characterised in that
The polyetheramine is selected from：In Jeffamine T5000, Jeffamine T3000, Jeffamine D2000 any one or
Several mixing.
3. the preparation method for preparing the chain extender of expandable PET resin according to claim 1, it is characterised in that
The epoxy resin is selected from：In bisphenol A type epoxy resin, bisphenol f type epoxy resin, aliphatic epoxy resin any one or
Several mixing.
4. the preparation method for preparing the chain extender of expandable PET resin according to claim 1, it is characterised in that
The accelerator is selected from：In three-(dimethylamino methyl) phenol, dimethyl benzylamine, methylimidazole any one or a few
Mixing.
5. the preparation method for preparing the chain extender of expandable PET resin according to claim 1, it is characterised in that
The mol ratio of the hydrogen in the epoxy resin epoxide epoxy group group and polyetheramine on amino is (2~10):1.
6. the preparation method for preparing the chain extender of expandable PET resin according to claim 5, it is characterised in that
The mol ratio of the hydrogen in the epoxy resin epoxide epoxy group group and polyetheramine on amino is (3~6):1.
7. the preparation method for preparing the chain extender of expandable PET resin according to claim 1, it is characterised in that
The temperature is more than 100 DEG C.
8. the preparation method of the chain extender for preparing expandable PET resin as described in claim 1~7 obtain for making
The chain extender of standby expandable PET resin.
9. a kind of expandable PET resin, it is characterised in that described expandable PET resin includes being used for described in claim 8
Prepare the chain extender of expandable PET resin.
10. expandable PET resin according to claim 9, it is characterised in that the characteristic of the expandable PET resin is glued
It is 1.0~1.5dL/g to spend.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710097191.1A CN106832225B (en) | 2017-02-22 | 2017-02-22 | A kind of chain extender and preparation method thereof being used to prepare expandable PET resin |
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| CN201710097191.1A CN106832225B (en) | 2017-02-22 | 2017-02-22 | A kind of chain extender and preparation method thereof being used to prepare expandable PET resin |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110305356A (en) * | 2019-07-25 | 2019-10-08 | 安徽东远新材料有限公司 | A kind of chain extender for aromatic polyester microcellular foam material |
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|---|---|---|---|---|
| EP0326937A2 (en) * | 1988-02-01 | 1989-08-09 | Ppg Industries, Inc. | Glycidol-modified polyepoxide-polyoxyalkylenepolyamine adducts |
| US6248204B1 (en) * | 1999-05-14 | 2001-06-19 | Loctite Corporation | Two part, reinforced, room temperature curable thermosetting epoxy resin compositions with improved adhesive strength and fracture toughness |
| CN103788343A (en) * | 2014-01-26 | 2014-05-14 | 浙江环达漆业集团有限公司 | VOC (Volatile Organic Compounds)-free water-based epoxy curing agent |
-
2017
- 2017-02-22 CN CN201710097191.1A patent/CN106832225B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0326937A2 (en) * | 1988-02-01 | 1989-08-09 | Ppg Industries, Inc. | Glycidol-modified polyepoxide-polyoxyalkylenepolyamine adducts |
| US6248204B1 (en) * | 1999-05-14 | 2001-06-19 | Loctite Corporation | Two part, reinforced, room temperature curable thermosetting epoxy resin compositions with improved adhesive strength and fracture toughness |
| CN103788343A (en) * | 2014-01-26 | 2014-05-14 | 浙江环达漆业集团有限公司 | VOC (Volatile Organic Compounds)-free water-based epoxy curing agent |
Non-Patent Citations (1)
| Title |
|---|
| BIKIARIS D N, ET AL: "Chain Extension of Polyesters PET and PBT with N,N’-Bis(glycidy1 ester) Pyromellitimides. I", 《JOURNAL OF POLYMER SCIENCE PART A: POLYMER CHEMISTRY》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110305356A (en) * | 2019-07-25 | 2019-10-08 | 安徽东远新材料有限公司 | A kind of chain extender for aromatic polyester microcellular foam material |
| CN110305356B (en) * | 2019-07-25 | 2022-03-29 | 安徽东远新材料有限公司 | Chain extender for aromatic polyester microcellular foam material |
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| Publication number | Publication date |
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| CN106832225B (en) | 2019-01-04 |
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