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US 2015/0175829 A1Published application
Functionalized isobutylene-isoprene copolymer composition
Assignee3M Innovative Properties Company
InventorsHae-Seung Lee, Babu N. Gaddam, Robert A. Asmus, Steven D. Theiss
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Abstract
A siloxane-functional isobutylene copolymer and use thereof is described. The copolymer is of the formula: <Please insert the chemical formula here as it appears in the paper copy.> wherein a is at least 20, and at least one of b and c are at least one, X is oxygen or nitrogen; R1 is a covalent bond or a divalent (hetero)hydrocarbyl group; Sil is a polydialkylsiloxane; and x is 1 or 2.
Claims16
A composition comprising a copolymer of the formula:
- wherein
- a is at least 20, and at least one of b and c are at least one;
- X is oxygen or nitrogen;
- R1 is a covalent bond or a divalent (hetero)hydrocarbyl group;
- Sil is a polydialkylsiloxane, and
- x is 1 or 2.
3 more elements
Dependencies are inferred from the claim text.