公开(公告)号：US3821327A

公开(公告)日：1974-06-28

申请号：US30054572

申请日：1972-10-25

Applicant: TEXACO INC

Inventor： YAMAMOTO R ,  CUSANO C ,  RUBIN I

IPC: C08F20/00 ,  C08F20/38 ,  C08F265/00 ,  C08F265/04 ,  C08K3/00 ,  C08L1/00 ,  C08L25/00 ,  C08L27/00 ,  C08L27/06 ,  C08L33/00 ,  C08L33/02 ,  C08L51/00 ,  C08L51/02 ,  C08F15/00 ,  C08F15/40

CPC classification number: C08L27/06 ,  C08F265/04 ,  C08L51/003 ,  C08L51/04 ,  C08F265/06 ,  C08F212/10 ,  C08F220/44 ,  C08F212/06 ,  C08L2666/24 ,  C08L2666/04

Abstract: An ultraviolet light and fire resistant thermoplastic composition exhibiting good heat deflection temperature, tensile strength and elastic modulus properties comprising: 1. BETWEEN ABOUT 50 AND 75 WT. PERCENT OF A TERPOLYMER RESIN CHARACTERIZED AS A RUBBERY COPOLYMER BACKBONE OF A C2 to C18 alkyl acrylate and alkylthioalkyl methacrylate having grafted thereon an acrylonitrile-styrene member copolymer, 2. BETWEEN ABOUT 50 AND 25 WT. PERCENT OF A POLYVINYL CHLORIDE HAVING A SPECIFIC VISCOSITY BETWEEN ABOUT 0.30 AND 0.60 AND, 3. BETWEEN ABOUT 0 AND 10 WT. PERCENT OF A SYNGERISTIC FIRE RETARDING METAL SALT, SAID GRAFT TERPOLYMER FORMED BY POLYMERIZING A MIXTURE OF SAID ALKYL ACRYLATE AND ALKYLTHIOALKYL METHACRYLATE UNDER AQUEOUS EMULSION POLYMERIZATION CONDITIONS AT A PH between about 2-7 at a first temperature between about 110* and 150* C. under vigorous agitation conditions to form the rubbery copolymer of alkyl acrylate and ethylthioethyl methacrylate, then second polymerizing within said polymerization conditions said polymer with a mixture of acrylonitrile and styrene member.

公开(公告)号：US3742088A

公开(公告)日：1973-06-26

申请号：US3742088D

申请日：1971-01-07

Applicant: TEXACO INC

Inventor： CUSANO C ,  HOLDER C ,  RUBIN I

IPC: C08L69/00 ,  C08G39/10

CPC classification number: C08L69/00 ,  C08L33/00 ,  C08L2666/04

Abstract: The properties, in particular the impact strength, of polycarbonate resins having an average molecular weight of at least 8000 are improved by blending such resins with from about 3 percent to about 35 percent by weight of at least one elastomer characterized by an average molecular weight ranging from about 100,000 to about 2,000,000 and a second order transition (Tg) below 0*C.

Abstract translation: 通过将这种树脂与约3重量％至约35重量％的至少一种弹性体共混来改善平均分子量为至少8000的聚碳酸酯树脂的性能，特别是冲击强度，其特征在于平均分子量范围 约100,000至约2,000,000和二级转变（Tg）低于0℃。