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Use of amphiphilic polymers as agents for improving thermal stability and uv resistance of chlorinated and filled thermoplastic materials, process for the manufacture of said materials

An amphiphilic copolymer, mineral filler technology, applied in the field of chlorinated thermoplastic materials, can solve problems such as aesthetic problems

Active Publication Date: 2016-01-20
OMYA INT AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This phenomenon produces a more or less pronounced pink color on the surface of the composition, which creates an aesthetic problem for the end user

Method used

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  • Use of amphiphilic polymers as agents for improving thermal stability and uv resistance of chlorinated and filled thermoplastic materials, process for the manufacture of said materials
  • Use of amphiphilic polymers as agents for improving thermal stability and uv resistance of chlorinated and filled thermoplastic materials, process for the manufacture of said materials
  • Use of amphiphilic polymers as agents for improving thermal stability and uv resistance of chlorinated and filled thermoplastic materials, process for the manufacture of said materials

Examples

Experimental program
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Effect test

Embodiment 1

[0078] This example illustrates the manufacture of a composition based on PVC and containing calcium carbonate, for which impact resistance, gloss, thermal stability and UV resistance have been measured under different conditions:

[0079] - in the absence of compatibilizer (test No. 1),

[0080] - in the presence of a compatibilizer which is a comb polymer according to the prior art (test No. 2 and 3),

[0081] - in the presence of comb amphiphilic copolymers (tests 4 to 7),

[0082] - in the presence of linear amphiphilic copolymers which do not have the molecular weight and polydispersity index characteristics of the invention (test No. 8),

[0083] - In the presence of a linear amphiphilic copolymer, the copolymer has the molecular weight and polydispersity index characteristics of the invention (test No. 9 to 13).

[0084] Composition of filled PVC:

[0085] - by ARKEMA TM Company under the name Lacovyl TM PVC resin sold by S110P 2,200 grams

[0086] - by KRONOS TM...

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Abstract

The invention consists in the use of linear amphiphilic copolymers in chlorinated and filled thermoplastic compositions containing at least one chlorinated thermoplastic resin and at least one mineral filler as agent for improving the thermal stability and UV resistance of said composition The use of said copolymer is characterized in that it is composed of at least one hydrophilic monomer and at least one hydrophobic monomer, it has a weight average molecular weight between 5,000 g / mol and 20,000 g / mol and is less than or equal to A polydispersity index of 3, preferably a weight-average molecular mass between 10,000 g / mol and 15,000 g / mol and a polydispersity index of less than or equal to 2.5. It also relates to a method of using said copolymer for the manufacture of chlorinated and filled thermoplastic compositions, and also to the composition directly obtained by said method.

Description

technical field [0001] The present invention relates to the field of chlorinated thermoplastics containing mineral fillers. It involves a compatibilizer between the filler and the resin, which has the dual role of improving the thermal stability and UV resistance of the final material. Background technique [0002] Chlorinated thermoplastics, especially those based on PVC, have many applications, such as the manufacture of pipes (pipes for water supply, sewerage, irrigation, pipes for the passage of cables), external and / or internal building materials (window frames, shutters, doors, wall panels, suspended ceilings) or industrial components. [0003] They contain mineral fillers such as talc, aluminum oxide, titanium dioxide, magnesium oxide, barium sulfate, aluminum, silicon dioxide, kaolin or natural or synthetic calcium carbonate, the fillers listed in the document JP50-028105, which describe the Rigid material obtained by mixture of one or more kinds with PVC. [0004...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/04C08L33/00C08K3/26
CPCC08F293/00C08K3/26C08L27/06C08L33/064C08L53/00C08K2003/265C08L33/00
Inventor J·蒙戈因R·索基P·A·C·加尼M·布里
Owner OMYA INT AG