A PROCESS FOR PRODUCING THERMOPLASTIC RESINS HAVING HIGH IMPACT STRENGTH
摘要
The present invention relates to a process for producing a thermoplastic resin having high impact strength and good surface gloss, which comprises graft copolymerizing at least a vinyl cyanide compound and at least an aromatic vinyl compound for a short period of less than about 3 hours in the presence of rubber latex having high gel content. The rubber latex can be a mixture of two or more rubber latices having different particle size. The graft copolymer has the characteristics such that the degree of the inner occlusion into the resin is decreased and the degree of surface grafting is increased. Thereby, the resulted thermoplastic resin has a very high impact strength and good surface gloss, and the processability is greatly improved. In addition, when the graft copolymer is polymerized the level of coagulum formation is greatly decreased.
申请公布号
WO9820057(A1)
申请公布日期
1998.05.14
申请号
WO1997KR00213
申请日期
1997.11.04
申请人
LG CHEMICAL LIMITED;LEE, CHAN, HONG;KIM, YOUNG, MIN;YOO, JIN, NYOUNG