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1. (WO2017155630) METHYL AND OCTYL TIN - REACH COMPLIANT HIGH PERFORMANCE STABILIZER FOR PVC FILM MANUFACTURE

Pub. No.:    WO/2017/155630    International Application No.:    PCT/US2017/015740
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Wed Feb 01 00:59:59 CET 2017
IPC: C08K 5/56
C08K 5/57
C08K 5/58
Applicants: PMC ORGANOMETALLIX, INC.
Inventors: MESCH, Keith
DYMEK, Anthony
Title: METHYL AND OCTYL TIN - REACH COMPLIANT HIGH PERFORMANCE STABILIZER FOR PVC FILM MANUFACTURE
Abstract:
A liquid organotin heat stabilizer for clear, opaque and/or colored calendered rigid Polyvinyl Chloride (PVC) comprising octyltin mercaptide and methyltin mercaptide. Octyltin mercaptide is used to develop good early color in a clear, opaque or colored calendered rigid PVC film application. Methyltin mercaptide is used to improve the long term heat stability (reduced burning) of the clear, opaque or colored rigid calendered PVC films. Ranges from 50% to 75% octyltin mercaptide, and from 50% to 25% methyltin mercaptide have application. Preferred ranges are 60% to 64% octyltin mercaptide and 40% to 36% methyltin mercaptide. Most preferred is 62% octyltin mercaptide and 38% methyltin mercaptide.