C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 51/00 (2006.01) C08F 2/38 (2006.01) C08F 4/00 (2006.01) C08F 259/02 (2006.01) C08F 259/04 (2006.01) C08F 293/00 (2006.01)
Patent
CA 2435217
A graft copolymer composition and the preparation of the composition by living radical polymerization is disclosed. The polymerization reaction can be initiated at active chlorine sites on the poly(vinyl chloride) backbone in conjunction with a transition metal catalyst and an optional ligand. The graft copolymers are useful as, among others, compatibilizers for blends and alloys, as high heat distortion temperature poly(vinyl chloride) materials, as impact modifiers, and permanently plasticized materials.
L'invention concerne une composition de copolymres greff~s et la pr~paration de cette dernire par polym~risation stoechiom~trique radicalaire. La r~action de polym~risation peut Útre d~clench~e dans des sites de chlore actifs sur la charpente de poly(chlorure de vinyle), conjointement avec un catalyseur de m~tal de transition et ~ventuellement un ligand. Les copolymres greff~s sont utilis~s, entre autres, comme agents de compatibilisation pour les m~langes et les alliages, comme mat~riaux de poly(chlorure de vinyle) ~ d~formation thermique ~lev~e, comme agents antichocs, et enfin, comme mat~riaux d~finitivement plastifi~s.
Asgarzadeh Firouz
Percec Virgil
Gowling Lafleur Henderson Llp
The University Of Pennsylvania
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