Block copolymers

Details Block copolymers Block copolymers

C - Chemistry, Metallurgy

08

G

400/2019

C08G 2/38 (2006.01) C08G 63/08 (2006.01) C08G 63/664 (2006.01)

Patent

CA 1054741

ABSTRACT OF THE DISCLOSURE Block copolymer of the structure A-B wherein: - A is a polylactone block of recurring units: Image wherein PM is a linear polymethylene chain having from 2 to 13 carbon atoms, - B is a polyoxymethylene block of recurring units Image . The block copolymer contains at least 2 wt.% of block B and at least 0.1 wt.% of block A. The block copolymer can be used as modified polyacetal when rich in block B, or as special additive for plastics materials when rich in block A.

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