CN102206389B - PVC masterbatch, resin composition, wire, cable and manufacturing method thereof - Google Patents
PVC masterbatch, resin composition, wire, cable and manufacturing method thereof Download PDFInfo
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- CN102206389B CN102206389B CN201110081793.0A CN201110081793A CN102206389B CN 102206389 B CN102206389 B CN 102206389B CN 201110081793 A CN201110081793 A CN 201110081793A CN 102206389 B CN102206389 B CN 102206389B
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Abstract
The invention provides a PVC masterbatch which may not deteriorate material characteristics and recycles leadless PVC, a PVC resin composition, a wire, a cable, a manufacturing method of the recycled PVC resin composition, and a manufacturing method of the wire and the cable. The recycled PVC resin composition used PVC masterbatch is characterized by adding PVC masterbatch to recycled PVC resin to obtain the recycled PVC resin composition, and containing over 50phr plasticizer, 5-30 phr hydrotalcite and 3-20 anti oxidant, when compared with new PVC resin.
Description
Technical field
The present invention relates to the manufacture method of the manufacture method of regeneration poly (vinyl chloride) resin composition PVC master batch, poly (vinyl chloride) resin composition and electric wire, cable and regeneration poly (vinyl chloride) resin composition for the residuum of unleaded recovery polyvinyl chloride (PVC) resin (オ mono-バ mono-Off mouth one product) or electric wire skin being peeled off to the regenerations such as bits and electric wire, cable.
Background technology
Coating electric wire so far uses always and adopts lead compound as the PVC mixture of stablizer with PVC material, but because the requirement of environment is more and more higher, therefore starts to carry out unleaded, is substantially replacing to now lead-free.
But the technology of carrying out regeneration for the residuum to lead-free or electric wire skin overburden etc., also fails to develop the material that can realize the stabilization same with lead compound, therefore cannot carry out regeneration.Thus, cause the recycling Efficiency Decreasing of material cost rising, resource.
The regeneration method that in the past comprised the PVC of plumbous based compound is the new polyvinyl chloride (PVC) RESINS of mixing fresh (バ mono-ジ Application) in vinylchlorid with certain proportion reclaiming, and forms regeneration poly (vinyl chloride) resin composition and uses (patent documentation 1～3).This is because new polyvinyl chloride (PVC) RESINS is brought dilution effect, can improve material behavior.
Prior art document
Patent documentation
Patent documentation 1: TOHKEMY 2002-226657 communique
Patent documentation 2: TOHKEMY 2002-363364 communique
Patent documentation 3: TOHKEMY 2002-167487 communique
Summary of the invention
The problem that invention will solve
But, if the method is used for to unleaded recovery polyvinyl chloride (PVC) RESINS, owing to reclaiming the quality of polyvinyl chloride (PVC) RESINS, existing the situation that the characteristic of fresh new polyvinyl chloride (PVC) RESINS is reduced, be not effective way.
Therefore, the object of the present invention is to provide one can solve above-mentioned problem, can not reduce material behavior, the manufacture method of the manufacture method of regeneration poly (vinyl chloride) resin composition PVC master batch, poly (vinyl chloride) resin composition and electric wire, cable and the regeneration poly (vinyl chloride) resin composition that can carry out regeneration to unleaded recovery polyvinyl chloride (PVC) RESINS and electric wire, cable.
The scheme of dealing with problems
To achieve these goals, the invention of claim 1 is a kind of regeneration poly (vinyl chloride) resin composition PVC master batch, it is characterized in that, it is for to reclaiming, polyvinyl chloride (PVC) RESINS is added, the PVC master batch of acquisition regeneration poly (vinyl chloride) resin composition, with respect to new polyvinyl chloride (PVC) RESINS, contain softening agent more than 50phr, the hydrotalcite of 5～30phr, the oxidation inhibitor of 3～20phr.
The invention of claim 2 is, regeneration poly (vinyl chloride) resin composition PVC master batch as claimed in claim 1, and wherein, above-mentioned oxidation inhibitor is that phenol is oxidation inhibitor.
The invention of claim 3 is a kind of regeneration poly (vinyl chloride) resin composition, with respect to reclaiming polyvinyl chloride (PVC) RESINS, and the regeneration poly (vinyl chloride) resin composition PVC master batch described in the claim 1 or 2 that contains 1～10phr.
The invention of claim 4 is a kind of electric wire or cable, it is characterized in that, right to use requires regeneration poly (vinyl chloride) resin composition described in 3 as coating material.
The invention of claim 5 is manufacture method of a kind of poly (vinyl chloride) resin composition of regenerating, it is characterized in that, comprising:
In new polyvinyl chloride (PVC) RESINS, add softening agent more than 50phr, the hydrotalcite of 5～30phr, the oxidation inhibitor of 3～20phr, manufacture the operation of PVC master batch, and
To reclaim polyvinyl chloride (PVC) RESINS and above-mentioned PVC master batch melting mixing, manufacture the operation of regeneration poly (vinyl chloride) resin composition.
The invention of claim 6 is manufacture method of a kind of electric wire or cable, it is characterized in that, in the manufacture method of regeneration poly (vinyl chloride) resin composition claimed in claim 5, further regeneration poly (vinyl chloride) resin composition is extruded coated.
Invention effect
According to the present invention, can bring into play following excellent results: in the situation that not reducing material behavior and extruding processibility, residue crushed material or electric wire bits crushed material as unleaded recovery polyvinyl chloride (PVC) RESINS can be used as to regeneration poly (vinyl chloride) resin composition.
Embodiment
Below, one of the present invention is preferred embodiment described in detail.
Herein, so-called recovery polyvinyl chloride (PVC) RESINS, is the resin material that the resin-formed body of rear recovery obtains such as circulate by surplus material or on market.So-called new polyvinyl chloride (PVC) RESINS is original resin material.
The present invention, by reclaiming in polyvinyl chloride (PVC) RESINS at unleaded residuum or electric wire skin overburden bits etc., adds PVC master batch, thereby can in the situation that not reducing material behavior, carry out regeneration to regeneration polyvinyl chloride (PVC) RESINS.
As PVC master batch, with respect to new polyvinyl chloride (PVC) RESINS, contain the softening agent such as phthalic ester system more than 50phr, the oxidation inhibitors such as the hydrotalcite of 5～30phr, the phenol system of 3～20phr, the total amount that comprises these materials is 20～60 quality %.
With respect to reclaiming polyvinyl chloride (PVC) RESINS, add this PVC master batch of 1～10phr, form regeneration poly (vinyl chloride) resin composition.
Below, describe completing process of the present invention.
For reclaiming polyvinyl chloride (PVC) RESINS (wire covering materials PVC material):
Electric wire is the mixture that comprises polyvinyl chloride resin, softening agent, stablizer, fire retardant, weighting agent etc. with PVC material.For these are dispersed, need under 130～190 DEG C of left and right, carry out mixing, the operation of granulation then.In addition, for the particle that granulation is formed forms wire-shaped shape, also need to be 140～195 DEG C of left and right by material coated operation of extruding on conductor.
As mentioned above, this PVC material is until the coating material of formation electric wire is attended by thermal process 2 times.
For regenerative operation:
For the recovery polyvinyl chloride (PVC) RESINS of regenerating unleaded, as mentioned above, can will experience the material of 2 thermal processs, the surplus material or the utility line bits etc. that in insulating exruded operation or crust are extruded operation, produce recycle.
But there are the following problems for this material, therefore think always and be difficult to regeneration.
Problem when regeneration:
The surplus material reclaiming or electric wire bits material are because the cooperation formula in all parts is different, because the kind of softening agent, thermo-stabilizer, weighting agent is different with addition, therefore, for example, in the time carrying out regenerative operation with continuous extruder, compared with the situation of mixing common fresh material, can produce high shearing heating.
This shearing heating is: (moulding resin temperature when regeneration)-(the moulding resin temperature of fresh material)=10～15 DEG C, this is because high 10～15 DEG C of the moulding resin temperature than fresh material causes.
Even if what use so far adds plumbous PVC through 2 above thermal processs always, near thermostability resin temperature in the time of moulding is also good, therefore can according to a certain percentage the recovery polyvinyl chloride (PVC) RESINS that contains surplus material or electric wire bits material be mixed and be recycled with fresh new polyvinyl chloride (PVC) RESINS.
But, unleaded recovery polyvinyl chloride (PVC) RESINS compared with adding plumbous recovery polyvinyl chloride (PVC) RESINS, when experiencing the 3rd thermal process, thermally-stabilised rapid deterioration.
, unleaded recovery polyvinyl chloride (PVC) RESINS is extruded (2 times)-residuum, electric wire skin overburden mixing (3 times) 3 thermal processs again through mixing (1 time)-electric wire for the first time.
As mentioned above, reclaim polyvinyl chloride (PVC) RESINS owing to being reused, therefore this problem becomes bottleneck.
In addition, experience the unleaded recovery polyvinyl chloride (PVC) RESINS of more than 3 times thermal process if used, even if mix with fresh unleaded new polyvinyl chloride (PVC) RESINS with certain proportion, for thermostability and electrical characteristic etc., also cannot meet the standard as electric wire material.
As these former because:
(1) suppress starting material in new polyvinyl chloride (PVC) RESINS that desalination acid when high temperature and softening agent decompose residuum or electric wire skin overburden being considered to be worth doing while reprocessing, can produce consumption.
(2) the zinc muriate producing as by product is ionogen, therefore cannot obtain necessary electrical characteristic.
In addition, can also enumerate its desalination acid that can promote polyvinyl chloride (PVC) RESINS etc.
So the inventor has found, as carrying out machining at low temperature (de-hydrochloric acid content is few), in the time of high temperature process, can effectively catch the hydrochloric acid of sloughing, and suppresses the generation of zinc chloride, prevents the present invention of the method for the oxidative degradation of softening agent.
; use contains softening agent addition for more than 50phr; hydrotalcite addition is 5～30phr; phenol is that oxidation inhibitor addition is the PVC master batch of 3～20phr; with respect to unleaded recovery polyvinyl chloride (PVC) RESINS; add this master batch with 1～10phr, form regeneration poly (vinyl chloride) resin composition.
As softening agent, can enumerate the DINP of phthalic ester system, can also use non-phthalic ester is softening agent (trimellitate, hexanodioic acid polyester, cyclohexane diacid ester etc.).In addition, can also be the mixed stocker of phthalic ester and non-phthalic ester.
Oxidation inhibitor, except use phenol is oxidation inhibitor, can also be thioether, phosphorous acid ester system (ホ ス Off ア イ ト) oxidation inhibitor or their mixed stocker.
Above, in the present invention, softening agent contributes to the effect of the raising dispersiveness in the time that PVC master batch is mixing, in addition, oxidation inhibitor can prevent the oxidative degradation of softening agent, and hydrotalcite works as desalination acid trapping agent, especially adds near high-temperature area (195 DEG C) the performance effect in man-hour in regeneration.
Embodiment
Below, embodiments of the invention and comparative example are described.
Embodiment and comparative example all first (a) are prepared unleaded regeneration poly (vinyl chloride) resin composition PVC master batch, use this PVC master batch, (b) preparation regeneration poly (vinyl chloride) resin composition, set it as the coating material of electric wire and (c) extrude, studying its characteristic.
(a) preparation of PVC master batch for regeneration poly (vinyl chloride) resin composition
The PVC master batch of preparation table 1 mix proportion in accordance with the following methods.
Table 1
* do not contain the stablizer of hydrotalcite
According to the mix proportion shown in table 1, the master batch of preparation a1～a7.
For each master batch a1～a7, will resin, add in homogenizer (Henschel mixing tank) after softening agent, stablizer, other raw materials meterings, making total amount is 100 mass parts, stirs until resin temperature is heated to 110 DEG C, is then cooled to 40 DEG C.
Then, cooling mixture is added to 85kg in the batch-type mixer of capacity 75L, the chamber temp of batch mixer is made as to 150 DEG C, rotor number is made as to 50rpm, carry out mixingly, the resin temperature in mixing tank is 170 DEG C, finishes mixing.
To add in 150mm single shaft granulating extruder and carry out granulation through mixing material, then air cooling, obtains the PVC master batch that contains polyvinyl chloride resin composition.
For the condition of single shaft granulating extruder, with 130～170 DEG C of cylinder temperature, 170 DEG C, screen cloth: 40M, products formed is the mode of 3mm φ × 3mmH, carries out air cooling granulation.
(b) preparation of regeneration poly (vinyl chloride) resin composition
Use the master batch preparation regeneration poly (vinyl chloride) resin composition shown in table 1.
Table 2
Meet standard value: zero; Do not meet: ×
Comparative example 2～5, embodiment 1～7th, making to remain crushed material (3～5mm is square) is 50 mass parts, electric wire bits crushed materials (3～5mm is square) are 50 mass parts, add wherein the master batch a1～a7 shown in table 1 material mixing, comparative example 1 is not add master batch, to 50 mass parts residue crushed materials, the material that adds 50 mass parts common sheath fresh mixtures and mix in 50 mass parts electric wire bits crushed materials.
For mixing, the residue crushed material of metering, electric wire bits crushed material, master batch are mixed 3 minutes in drum tumbler, then in the batch-type mixer of capacity 75L, add 85kg mixture, 160 DEG C of the chamber temps of batch mixer, rotor is counted under 50rpm mixing, resin temperature in mixing tank is 180 DEG C, finishes mixing.
Then, mixing material is added in 150mm single shaft granulating extruder and carries out granulation, then air cooling, obtains regeneration poly (vinyl chloride) resin composition.
For the condition of single shaft granulating extruder, with cylinder: 140～180 DEG C, 180 DEG C, screen cloth: 40+80M, products formed is the mode of 3mm φ × 3mmH, carries out air cooling granulation.
(c) the applicable evaluation to electric wire material
Tension test, oil resistant test after tension test in table 2, heating, the each applicable evaluation that adds thermal distortion, freezing test are carried out based on JISK6723 (soft PVC mixture) a kind No. 3 (general sheath).
In addition,, as electric wire material, append necessary following project and judge.
Volume specific resistance:
The volume specific resistance test specifying by JISK67236.8 item is measured, and meeting volume specific resistance (30 DEG C) is 1 × 10
12standard more than Ω cm be zero, be ungratifiedly ×.
Hardness Shore D:
The hardness test specifying by JISK6301 is measured, and what hardness Shore D was 30～40 is zero, beyond it be ×.
In addition, consider that it is regeneration poly (vinyl chloride) resin composition, for heat-resistant quality, measure weathering test, oil resistant test, add thermal distortion, winter hardiness, thermostability and evaluate.
Herein, thermostability is the test method specifying by JISK67236.7 item, oil sump temperature is set as to 195 DEG C, measure until the time of variable color, heat ageing test is that the heating back draft test specifying by JISK67236.4 item is measured, for thermostability, at 195 DEG C, more than 95MIN, (being equivalent to leaded material) is zero, and stretching residual rate when thermal ageing more than 80% is zero.
Extrudability continuously:
For continuously extrudability, observe the generation that has or not yellowing when continuous coating electric wire operated in 24 hours.
As coating material, by 90mmEXT, make the sheathing operation continuous operation of CVV3 × 1.25SQ after 24 hours, whether whether yellowing when Visual Confirmation head decomposes, there is the particle causing due to yellowing at jacket outer surface.
In addition, for extruding, cylinder temperature is made as to 130～185 DEG C, head is made as 185 DEG C, and mould is made as 185 DEG C, and screen cloth is made as 40+60M.
At 75 DEG C, in water, flood the frosting of 1 day;
In the distilled water of 75 DEG C, flood the thick sheet of the square 2mm of 25mm, after 1 day, whether Visual Confirmation there is frosting thing on surface.
Comparative example 1:
For the regrowth that common 50 mass parts fresh mixture for sheath, 50 mass parts residue crushed materials, 50 mass parts electric wires bits crushed materials are mixed, the thermal ageing properties after heating, volume resistance, thermostability cannot reach standard.
Comparative example 2:
Mix according to 50:50 for remaining crushed material and electric wire bits crushed material, do not add the master batch shown in table 1 and be formed as the material of regrowth, the stretching after the thermal ageing after heating, volume resistance, thermostability cannot meet standard.
In addition,, extruding continuously in operation, except producing in appearance the particle causing due to yellowing, sleeve (the ス リ mono-Block) part after head decomposes confirms to have the material of yellowing.For lead-free, although formed the matching design that can tolerate the thermal load while extruding in fresh material, now, can consume hydrochloric acid trapping agent, in addition, can produce by product (zinc chloride etc.).Infer these being again accompanied by the regenerative operation of same thermal process, understand the desalination acid of Promotion system, reduce the thermal stability of high-temperature area (180～195 DEG C).
Comparative example 3～5:
The object that comparative example 3～5 has added respectively 5phr is the master batch a1～a3 shown in the table 1 of thermostability while improving comparative example 1 high temperature or volume resistance.
Comparative example 3 uses the addition of hydrotalcite for the so few master batch a1 of 4phr, compares with comparative example 1,2, finds that thermotolerance improves, but and insufficient.
Comparative example 4 has used the master batch a2 that the addition of hydrotalcite is 54phr, and thermotolerance is improved, but volume resistance does not meet standard.
In addition,, in comparative example 5, using phenol is the master batch a3 that oxidation inhibitor is 54phr, but has produced the bloom causing due to oxidation inhibitor, is abandoned.
In addition, comparative example 3,4,5 in oil resistant test, and the remaining rate that stretches all cannot meet.
Embodiment 1～7:
Embodiment 1～7 has used the master batch of a4～a7, and all characteristics all meet standard value.
This master batch a4～a7 composition is: softening agent addition is more than 50phr, hydrotalcite addition is 5～30phr, phenol is that oxidation inhibitor addition is 3～20phr, adding proportion with respect to 100 mass parts residue crushed materials and electric wire bits crushed material is 1～10phr, confirm all to meet all material behaviors or extrudability continuously, can be used as unleaded regeneration poly (vinyl chloride) resin composition material.
For embodiment 3,4 regeneration poly (vinyl chloride) resin composition, coating material as electric wire is extruded, study its characteristic, again pulverized afterwards, no longer add PVC master batch of the present invention, under the condition same with embodiment 1～7, carry out again mixing to it, repeat 7 times as after the coating material of electric wire, it is evaluated to known the meet all characteristics project same with embodiment 1～7 of result.
Consequently, known regeneration poly (vinyl chloride) resin composition of the present invention through due to 7 times mixing, extrude after the thermal process producing, thermostability is also good, the recirculation excellence of known PVC master batch of the present invention, at circulation time, as long as add once, even after this through manipulation of regeneration repeatedly, can not damage the characteristic as regeneration poly (vinyl chloride) resin composition, and can be maintained yet.
According to foregoing, for the composition of master batch,
Softening agent addition:
Softening agent contributes to improve the dispersiveness of master batch when mixing, if less, bad dispersibility, if too much, become the too much state of oilness, bad dispersibility, the viewpoint of therefore disperseing from master batch is considered, is preferably 50～80phr.More preferably 50～60phr.If addition is too much, described above, when mixing, become the too much state of external lubrication, the dispersion of master batch is slow, causes production efficiency to reduce.
Hydrotalcite addition:
Hydrotalcite works as depickling trapping agent, especially adds near high-temperature area (195 DEG C) performance in man-hour as the effect of depickling trapping agent in regeneration.From the thermotolerance of regeneration poly (vinyl chloride) resin composition and when regeneration forming process viewpoint consider, addition is 5～30phr, more preferably 10～25phr.If addition is many, the foaming of the poly (vinyl chloride) resin composition that can cause regenerating, is therefore not preferred.
Oxidation inhibitor addition:
Oxidation inhibitor has the function that prevents softening agent oxidative degradation, considers from the viewpoint that prevents softening agent oxidation, and its addition is 3～20phr, more preferably 3～15phr.If addition is more, can, from regrowth surface frosting, cause outward appearance to worsen, be therefore not preferred.
For master batch for reclaiming the addition of poly (vinyl chloride) resin composition, if judged from the residue crushed material of raw material or the material behavior of electric wire bits crushed material, be 1～10phr, more preferably 3～8phr is good, if the what is called of also considering to have repeated repeatedly regeneration again regrowth circulation or with fresh granules and use, preferably confirm the appropriate region that it is each.
Above, for the present invention, as the Application Example of regeneration poly (vinyl chloride) resin composition, with the coated electric wire forming on conductor, the wire covering materials of the cable of coated multiple insulated line etc. is that example is illustrated, but beyond wire covering materials, be all effective for all areas that uses unleaded flexible PVC.
Claims (5)
1. a regeneration poly (vinyl chloride) resin composition, is characterized in that, with respect to reclaiming polyvinyl chloride (PVC) RESINS, and the regeneration poly (vinyl chloride) resin composition PVC master batch that contains 1～10phr,
Described regeneration poly (vinyl chloride) resin composition is for to reclaiming, polyvinyl chloride (PVC) RESINS is added, the PVC master batch of acquisition regeneration poly (vinyl chloride) resin composition with PVC master batch, with respect to new polyvinyl chloride (PVC) RESINS, contain softening agent more than 50phr, the hydrotalcite of 5～30phr, the oxidation inhibitor of 3～20phr.
2. regeneration poly (vinyl chloride) resin composition as claimed in claim 1, wherein, above-mentioned oxidation inhibitor is that phenol is oxidation inhibitor.
3. electric wire or a cable, is characterized in that, right to use requires regeneration poly (vinyl chloride) resin composition described in 1 or 2 as coating material.
4. the regenerate manufacture method of poly (vinyl chloride) resin composition, is characterized in that, comprising:
In new polyvinyl chloride (PVC) RESINS, add softening agent more than 50phr, the hydrotalcite of 5～30phr, the oxidation inhibitor of 3～20phr, manufacture the operation of PVC master batch, and
To reclaim polyvinyl chloride (PVC) RESINS and above-mentioned PVC master batch melting mixing, manufacture the operation of regeneration poly (vinyl chloride) resin composition.
5. a manufacture method for electric wire or cable, is characterized in that, in the manufacture method of regeneration poly (vinyl chloride) resin composition claimed in claim 4, further regeneration poly (vinyl chloride) resin composition is extruded coated.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010075793A JP5346861B2 (en) | 2010-03-29 | 2010-03-29 | PVC master batch for recycled vinyl chloride resin composition, vinyl chloride resin composition and electric wire / cable, method for producing recycled vinyl chloride resin composition, and method for producing electric wire / cable |
| JP2010-075793 | 2010-03-29 |
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| Publication Number | Publication Date |
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| CN102206389A CN102206389A (en) | 2011-10-05 |
| CN102206389B true CN102206389B (en) | 2014-11-26 |
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| CN201110081793.0A Expired - Fee Related CN102206389B (en) | 2010-03-29 | 2011-03-29 | PVC masterbatch, resin composition, wire, cable and manufacturing method thereof |
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| JP (1) | JP5346861B2 (en) |
| CN (1) | CN102206389B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103865191B (en) * | 2012-12-13 | 2017-06-16 | 日立金属株式会社 | Poly (vinyl chloride) resin composition and the insulated electric conductor of the poly (vinyl chloride) resin composition is used |
| US10577912B2 (en) | 2014-11-12 | 2020-03-03 | Helmerich & Payne Technologies, Llc | System and method for measuring characteristics of cuttings and fluid front location during drilling operations with computer vision |
| CN106297981A (en) * | 2016-08-12 | 2017-01-04 | 上海长顺电梯电缆有限公司 | Termite-proof low-smoke halogen-free inflaming-retarding cable |
| JP2017075335A (en) * | 2017-01-20 | 2017-04-20 | 日立金属株式会社 | Polyvinyl chloride resin composition and insulated wire prepared therewith, and method for producing insulated wire |
| JP7060582B2 (en) | 2017-03-27 | 2022-04-26 | 古河電気工業株式会社 | Heat-resistant chlorine-containing crosslinked resin molded article and its manufacturing method, silane masterbatch and masterbatch mixture, and heat-resistant products |
| JP6850067B2 (en) * | 2017-11-17 | 2021-03-31 | 協和化学工業株式会社 | Masterbatch for vinyl chloride resin |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4116908A (en) * | 1973-03-08 | 1978-09-26 | Guy Charles Emery | Process for the preparation of a master mixture for a powder composition with a polyvinyl chloride base |
| CN1094736A (en) * | 1993-04-16 | 1994-11-09 | 希巴-盖吉股份公司 | stable polyvinyl chloride |
| WO2009040432A1 (en) * | 2007-09-26 | 2009-04-02 | Eliokem | Rubbery polymer with low compression set |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10317870A1 (en) * | 2003-04-17 | 2004-11-04 | Crompton Vinyl Additives Gmbh | New stabilizer system for stabilizing halogen-containing polymers |
| JP2005067196A (en) * | 2003-08-05 | 2005-03-17 | Meiji Rubber & Chem Co Ltd | Method of inhibiting hydrochloric acid generation in recycling waste plastic |
| US7671124B2 (en) * | 2004-10-20 | 2010-03-02 | Sakai Chemical Industry Co., Ltd. | Hydrotalcite and synthetic resin composition |
-
2010
- 2010-03-29 JP JP2010075793A patent/JP5346861B2/en active Active
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- 2011-03-29 CN CN201110081793.0A patent/CN102206389B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4116908A (en) * | 1973-03-08 | 1978-09-26 | Guy Charles Emery | Process for the preparation of a master mixture for a powder composition with a polyvinyl chloride base |
| CN1094736A (en) * | 1993-04-16 | 1994-11-09 | 希巴-盖吉股份公司 | stable polyvinyl chloride |
| WO2009040432A1 (en) * | 2007-09-26 | 2009-04-02 | Eliokem | Rubbery polymer with low compression set |
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| Publication number | Publication date |
|---|---|
| CN102206389A (en) | 2011-10-05 |
| JP5346861B2 (en) | 2013-11-20 |
| JP2011207973A (en) | 2011-10-20 |
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