Process for the production of thermoplastic resin composition

Abstract

Abstract PCT No. PCT/JP96/02962 Sec. 371 Date Jun. 11, 1997 Sec. 102(e) Date Jun. 11, 1997 PCT Filed Oct. 14, 1996 PCT Pub. No. WO97/13801 PCT Pub. Date Apr. 17, 1997A process for producing thermoplastic resin compositions, comprises mixing under melting conditions a polyester resin (I) and an addition polymer (II) having on one end thereof 0.5 to 1 group of a functional group capable of reacting with polyester resins in a ratio by weight between the former and the latter of 97/3 to 20/80 and then solid phase polymerizing the mixture, to obtain a thermoplastic resin composition comprising: [1] a high molecular polyester resin (I') derived from said polyester resin (I) , [2] said addition polymer (II) having on one end thereof 0.5 to 1 group of a functional group capable of reacting with polyester resins, and [3] a block copolymer (III) comprising a polyester block (i) derived from said polyester resin (I) and a polymer block (ii) derived from said addition polymer (II); in said thermoplastic resin composition the ratio between {the sum of the weight of said polyester resin (I') and the weight of said polyester block (i) contained in said block copolymer (III)} and {the sum of the weight of said addition polymer (II) and the weight of said polymer block (ii) contained in said block copolymer (III)} being 97/3 to 20/80 and the molar ratio between said block copolymer (III) and said addition polymer (II) being at least 20/80. The thermoplastic resin compositions obtained by this process, having good compatibility with a variety of polymers, are useful as resin improving agents, such as compatibility improving agents and quality improving agents.

Inventors

• 👤 Haruhisa Masuda
• 👤 Takashi Oku
• 👤 Tsugunori Kashimura

Bibliographic Details