Elastomeric graft copolymers and their use as compatibilizers

C - Chemistry – Metallurgy – 08 – G

Patent

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400/2022, 400/30

C08G 81/02 (2006.01) C08F 8/00 (2006.01) C08F 8/20 (2006.01) C08G 81/00 (2006.01) C08L 23/02 (2006.01) C08L 23/22 (2006.01) C08L 51/08 (2006.01)

Patent

CA 2003738

Graft copolymers are disclosed which have the formula Image in which R and R' can be hydrogen, alkyl, and the primary and secondary alkyl halides, a ranges from about 14 to 70,000, b ranges from 0 to about 70,000, c ranges from 0 to about 70,000, d ranges from about 1 to 70,000, X is a halogen, and Mu is a nucleophilic residue provided by a polymeric nucleophile having a molecular weight of at least about 1,000 and being sufficiently nucleophilic such that said nucleophile is capable of donating electrons to benzyl halides. Methods for compatibilizing polymer blends using these graft copolymers are also disclosed.

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