Liquid pvc stabilizers and lubricants

Details Liquid pvc stabilizers and lubricants Liquid pvc stabilizers and lubricants

C - Chemistry, Metallurgy

08

K

C08K 5/00 (2006.01) C08K 5/098 (2006.01) C08K 5/52 (2006.01) C08K 5/526 (2006.01) C08L 27/06 (2006.01)

Patent

CA 2204267

Disclosed is a stabilizer composition effective to protect PVC resin against heat-mediated deterioration, comprising a mixture of barium and zinc salts of aliphatic C6-C20 carboxylates and aromatic C7-C12 carboxylates, organic triphosphites of the formula R1OP(OR3)OR2 wherein each of R1, R2 and R3 is C6- C12 alkyl or phenyl, and organic acid phosphites of the formula R4OP(OH)OR5 wherein each of R4 and R5 is C6-C12 alkyl or phenyl, or R4 can be hydrogen. PVC film compounded with this stabilizer composition also exhibits improved wettability and adherence to water-based inks applied to such films.

La présente invention concerne une composition de stabilisants efficaces pour protéger la résine PVC contre la détérioration due à la chaleur, comprenant un mélange de sels de baryum et de zinc de carboxylates aliphatiques C¿6?-C¿20? et de carboxylates aromatiques C¿7?-C¿12?, des triphosphites organiques de la formule R¿1?OP(OR¿3?)OR¿2? dans laquelle R¿1?, R¿2? et R¿3? sont chacun alkyle C¿6?-C¿12? ou phényle, et des phosphites d'acide organique de la formule R¿4?OP(OH)OR¿5? dans laquelle R?4¿ et R¿5? sont chacun alkyle C¿6?-C¿12? ou phényle, ou bien R¿4? peut être hydrogène. Le film PVC mélangé avec cette composition de stabilisants présente également une mouillabilité et une adhérence améliorées aux encres à base d'eau appliquées sur ces films.

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