Resin compositions, methods for their preparation, and molded articles using the same.
By preparing a resin composition containing vinyl copolymers and graft copolymers, and using specific amounts of sulfosuccinic acid compounds and disproportionated rosin as emulsifiers, the problems of insufficient impact resistance, surface smoothness and color development of the resin composition in the molded articles were solved, and the overall performance of the molded articles was improved.
CN121420028BActive Publication Date: 2026-05-26TORAY PLASTICS MALAYSIA
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- TORAY PLASTICS MALAYSIA
- Filing Date
- 2023-12-14
- Publication Date
- 2026-05-26
AI Technical Summary
Technical Problem
Existing resin compositions lack a balance in terms of impact resistance, surface smoothness, color development, and appearance of molded articles, which limits their application in a wide range of uses.
Method used
By preparing a resin composition comprising vinyl copolymers and graft copolymers, using specific amounts of sulfosuccinic acid compounds and disproportionated rosin as emulsifiers, and combining heat-resistant vinyl copolymers, the moldability and appearance properties of the resin composition are optimized.
Benefits of technology
It achieves excellent impact resistance, surface smoothness, and color development of molded products, improving their appearance quality and making them suitable for a variety of applications.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN121420028B_ABST
Abstract
The purpose of this invention is to provide a resin composition with good impact resistance, surface smoothness, color development and appearance of molded articles, and a method for preparing the resin composition. The main purpose is to provide a resin composition and a method for preparing the resin composition, wherein the resin composition contains: a graft copolymer (A), which is obtained by graft copolymerization of a monomer mixture (a) containing at least an aromatic vinyl monomer (a1) and a vinyl cyanide monomer (a2) in the presence of an acrylic rubber-like polymer (R) obtained by copolymerization of an alkyl acrylate monomer (r1) and a multifunctional monomer (r2); and a vinyl copolymer (B), which is obtained by copolymerization of a monomer mixture (b) containing at least an aromatic vinyl monomer (b1) and a vinyl cyanide monomer (b2), wherein the total mass of the anionic surfactant contained in the resin composition is less than 5,000 ppm (mass / mass); and the total mass of the sulfosuccinic acid compound (E) and disproportionated rosin (F) represented by chemical formula [1] contained in the resin composition is less than 2,000 ppm (mass / mass). Below ppm (mass / mass); the mass ratio of sulfosuccinic acid compound (E) to disproportionated rosin (F) is 10:90 to 30:70 (sulfosuccinic acid compound (E): disproportionated rosin (F)). In [Formula 1], R is C8-22 alkyl or alkenyl; AO is C2 or C3 oxoalkylene; n is an integer from 0 to 20; M and N independently represent hydrogen, alkali metal or alkaline earth metal; p is 1 when M is hydrogen or alkali metal or p is 1 / 2 when M is alkaline earth metal; q is 1 when N is hydrogen or alkali metal or q is 1 / 2 when N is alkaline earth metal.
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