发明名称 |
STABILIZER COMPOSITION FOR CHLORINE-CONTAINING POLYMERS AND PROCESS FOR PREPARATION THEREOF |
摘要 |
Disclosed to a stabilizer composition for a chlorine-containing polymer, which comprises a zeolite type stabilizer; calcium hydroxide or magnesium hydroxide, a metal soap type stabilizer and perchloric acid as indispensable components. The stabilizer composition is obtained by adding a metal soap type stabilizer to a mixture of a zeolite type stabilizer and calcium hydroxide or magnesium hydroxide under attrition to cover the mixture with the metal soap type stabIlizer at a high efficiency, and adding perchloric acid to the covered mixture. In the stabilizer composition of the present invention, the initial discoloration, which is a fatal defect of the conventional zeolite type stabilizer for a chlorine-containing polymer, can be prevented, and a sufficient hydrogen chloride-capturing capacity is exerted and a high heat stability is attained without occurrence of bleeding.
|
申请公布号 |
US5133899(A) |
申请公布日期 |
1992.07.28 |
申请号 |
US19900590819 |
申请日期 |
1990.10.01 |
申请人 |
MIZUSAWA INDUSTRIAL CHEMICALS, LTD. |
发明人 |
NAKAZAWA, TADAHISA;OGAWA, MASAHIDE;SHOJI, SHOJI;WAKAKI, SEIZI;ABE, CHOICHI |
分类号 |
C08K3/16;C08K3/18;C08K3/22;C08K3/34;C08K5/09;C08K5/098;C08K13/02;C08L27/04 |
主分类号 |
C08K3/16 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|