KR900003291A - One-step bulk process for high-impact polyester masterbatch, its products and mixtures with polyester - Google Patents

Abstract

No content

Description

One-step bulk process for high-impact polyester masterbatch, its products and mixtures with polyester

Since this is an open matter, no full text was included.

Claims (30)

Rubber components formed by interpolymerization of ethylene, one or more C ₃ -C ₁₆ mono-olefins and polyenes, ethylene and 3 to 16 carbon atoms, in the presence of free radical initiators less than the total increment of polyester or polyamide matrix resin A masterbatch is formed by reacting an ester of acrylic acid or methacrylic acid having an epoxide functional group with a skeletal rubber selected from the group consisting of copolymer rubbers and mixtures thereof formed by copolymerization of one or more mono-olefins having And then mixing this masterbatch with the rest of the matrix resin to produce a thermoplastic polyester or polyamide based composition having improved toughness and impact strength. The process of claim 1 wherein the ethylene, mono-olefin, polyene interpolymer rubber is ethylene, propylene, 5-ethylidene-2-norbornene interpolymer rubber. The method of claim 1 wherein the ethylene, mono-olefin, copolymer rubber is ethylene-propylene rubber. 4. The process of claim 3 wherein ethylene and propylene are present in a bonded state at a ratio of 10 to 95 mole ethylene to 90 to 5 mole propylene. 3. The process of claim 2 wherein ethylene and propylene are present in the interpolymer in a ratio of 45 to 75 mole ethylene to 55 to 25 mole propylene. The method of claim 2 wherein the polyene is present in an amount that provides from 2 to 20 C═C groups per 1000 carbon atoms in the interpolymer. The method of claim 6 wherein the ester of methacrylic acid is glycidyl methacrylate. The method of claim 6 wherein the ester of acrylic acid is glycidyl acrylate. The method of claim 1 wherein the ester having an epoxide functional group is present in an amount ranging from 2 to 15 parts by weight per 100 parts by weight of the backbone rubber. The process of claim 1 wherein the reaction is carried out at elevated temperature in the presence of a peroxide catalyst present in an amount in the range of from about 0.3 to 3.0 parts by weight per 100 parts by weight of skeletal rubber. The process of claim 1 wherein the masterbatch is formulated to contain 20 to 80% of the matrix resin present in the final mixture. The process of claim 1 wherein the masterbatch is formulated to contain 20 to 60% of the matrix resin present in the final mixture. The method according to claim 1, wherein the ratio of the skeletal rubber to the matrix resin in the masterbatch is in the range of 50 to 80 parts by weight of the skeletal rubber to 50 to 20 parts by weight of the matrix resin. The method according to claim 1, wherein the ratio of the skeleton rubber to the matrix resin in the masterbatch is in the range of 60 to 80 parts by weight of the skeleton rubber to 50 to 20 parts by weight of the matrix resin. The method of claim 1, wherein the framework rubber, ester of acrylic acid with epoxide functional groups, and polyester or polyamide are reacted in one step in a melt processing apparatus in the presence of a free radical initiator to form a masterbatch. The process of claim 1 wherein the reaction to form the masterbatch is carried out at a temperature in the range of 350 ° C. to 550 ° F. 7. A polyester-based thermoplastic molding composition prepared according to the method of claim 1. A polyester-based thermoplastic molding composition prepared according to the method of claim 7. Reacting esters of acrylic acid or methacrylic acid having an epoxide functional group with a skeletal rubber selected from the group consisting of interpolymer rubbers, copolymer rubbers and mixtures thereof in the presence of free radical initiators less than the total increment of the matrix resin in the final product Characterized in that the preparation of a masterbatch for mixing with a polyester or polyamide matrix resin to form a thermoplastic molding composition. The interpolymer rubber of claim 19, wherein the ethylene, at least one C ₃ -C ₁₆ mono-olefin, and a polyene having a ratio of ethylene to the mono-olefin bound in the interpolymer are 90 to 5 ethylene to 10 to 95 propylene. How to form. The method of claim 20, wherein the polyene is 5-ethylidene-2-norbornene present in an amount that provides up to 20 C═C groups per 1000 carbon atoms. The method of claim 19, wherein the copolymer rubber is a copolymer of ethylene and one or more C ₃ -C ₁₆ mono-olefins. The method of claim 22 wherein the copolymer rubber is a copolymer of ethylene and propylene bonded into the rubber in a ratio of 10 to 95 moles of ethylene to 90 to 5 moles of propylene. The method of claim 19, wherein the ester of methacrylic acid is glycidyl methacrylate present in an amount in the range of from 2 to 15 parts by weight per 100 parts by weight of the backbone rubber. The process of claim 19, wherein the reaction is carried out at elevated temperatures in the range of 350 to 550 ° F. in the presence of a peroxide catalyst. The method of claim 25, wherein the catalyst is present in an amount ranging from about 0.3 to 3.0 parts by weight per 100 parts by weight of rubber. 20. The method of claim 19, wherein the masterbatch comprises 50 to 80 parts by weight of skeletal rubber relative to 50 to 20 parts by weight of polyester resin. 20. The method of claim 19, wherein the masterbatch is formed in one step in the melt processor. Masterbatch prepared by the method of claim 19. A masterbatch made by the method of claim 26. ※ Note: The disclosure is based on the initial application.