Methacrylimide containing polymer

C - Chemistry – Metallurgy – 08 – F

Patent

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400/2050

C08F 299/00 (2006.01) C08F 8/32 (2006.01) C08F 8/48 (2006.01)

Patent

CA 2006017

METHACRYLIMIDE CONTAINING POLYMER ABSTRACT OF THE DISCLOSURE A methacrylimide containing polymer which is a thermoplastic polymer comprising from 2 to 100 % by weight of a structural unit represented by the general formula: Image where R represents a hydrogen atom or an aliphatic group, aromatic group or cycloaliphatic hydrocarbon group with 1 to 20 carbon atoms and from 0 to 98 % by weight of a structural unit derived from as ethylenic monomer, the polymer having (a) a molecular weight (Mw) of greater than 50,000 and less than 200,000 as measured by GPC, and (b) an amount of amide segments in the polymer of less than 5% by weight. The methacrylimide containing polymer has excellent transparency and heat resistance, as well as a low yellowness and aging coloration under heating.

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