C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
400/2019
C08G 83/00 (2006.01) C08F 8/00 (2006.01)
Patent
CA 1128236
ABSTRACT OF THE DISCLOSURE: The present invention is directed to a process for preparing graft polymers of .alpha.-.alpha.'-dialkylsubstituted .beta.-propiolac- tones which comprises reacting a copolymer of isobutylene and a polyconjugated polyene linear hydrocarbon containing at least three conjugated double bonds with a dienophile under Diels- Alder reaction conditions to provide a functionalized copolymer substituted with a group selected from an acid, anhydride or ester group, and then reacting said functionalized copolymer with a .alpha.-.alpha.'-dialkylsubstituted .beta.-propiolactone in a solvent at a temperature of from -80°C. to 200°C., and recovering product.
351014
Gandini Alberto
Roggero Arnaldo
Anic S.p.a.
Robic Robic & Associes/associates
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