Resin stabilizer systems of organotin sulfur-containing...

Details Resin stabilizer systems of organotin sulfur-containing... Resin stabilizer systems of organotin sulfur-containing...

C - Chemistry, Metallurgy

07

C

31/77, 400/9204,

C07C 7/20 (2006.01) C08K 5/58 (2006.01) C08K 13/02 (2006.01) C09K 3/00 (2006.01)

Patent

CA 1041285

ABSTRACT OF THE DISCLOSURE A resin stabilizer composition which essentially contains an organotin sulfur-containing compound having a ?-Sn-S group, for example, organotin mercaptides, organotin mercaptoacids, organotin mercaptoacid esters, organotin sulfides, organothiostan- noic acids and the like, and metal compound selected from the group consisting of an alkali metal bisulfite, carbonate, hydroxide, oxide, thiocarbonate, bicarbonate and metabisulfite, and mixtures of said metal compounds, said organotin and metal compound compon- ents in relative amounts which together provide a synergistic stabilizing effectiveness upon said resin. These compositions remarkably contribute to the long term heat stability of vinyl hal- ide resins. Furthermore, among other advantages, significant econ- omies and synergistic resin heat stabilization are offered by these stabilizer compositions.

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