Compounds having the formula
where R¹, R², R³, R⁴, and R⁵ are independently selected from hydrocarbons, n is an integer of 1 to 15, and Y is H, OH, O, or OR where R is a hydrocarbon are useful as stabilizers for polymers against the detrimental effects produced by exposure to actinic radiation, such as visible or ultraviolet light rays.
The present invention relates to a stabilizer composition, for use in polyvinyl chloride formulations, which comprises a mixture of: at least one organotin sulfide; at least one organotin chloride; and at least one free mercaptan.
Organotin compounds and resins or polymers stabilized therewith
申请人:M & T CHEMICALS, INC.
公开号:EP0011456B1
公开(公告)日:1983-09-07
Thermal stabilizer composition for halogen-containing vinyl polymers
申请人:Norris Kelly Gene
公开号:US20070049672A1
公开(公告)日:2007-03-01
Stabilizer compositions are used to stabilize halogen-containing vinyl polymers from, for example, degradation and discoloration. The stabilizer compositions comprise a mercaptoester, a reverse mercaptoester, and a Lewis acid.
Alkyltin sulfanyl diester thiols
申请人:Krainer Edward
公开号:US20080132621A1
公开(公告)日:2008-06-05
Disclosed herein are compounds of the formula:
(R)
x
—Sn—(R′)
4-x
wherein:
R is alkyl;
R′ is a moiety selected from the group consisting of:
w is 0 or 1;
x is 1 or 2;
y is 1, 2, 3, or 4; and
Z is a linear, branched, cyclic, or aromatic hydrocarbon.
These compounds are excellent stabilizers for halogen-containing resins, such as PVC.