Moisture curable polyisobutylenes

Details Moisture curable polyisobutylenes Moisture curable polyisobutylenes

1987-12-11

1989-02-28

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525100, C08F 800

Patent

active

048086649

ABSTRACT:
This invention provides novel moisture curable liquid isobutylene oligomers containing terminal groups of the formula ##STR1## where R represents a monovalent hydrocarbon or halogenated hydrocarbon radical, R' represents an alkylene radical, X is a hydrolyzable group bonded to silicon through oxygen or nitrogen, and n represents an integer from 1 to 5, inclusive. The invention also provides a method for preparing these oligomers by the hydrosilation of terminally unsaturated isobutylene oligomers with a siloxane of the general formula ##STR2## in the presence of a platinum-containing hydrosilation catalyst.

REFERENCES:
patent: 4342849 (1982-08-01), Kennedy
patent: 4435536 (1984-03-01), Kato et al.
patent: 4524187 (1985-06-01), Greco et al.
patent: 4665127 (1987-05-01), Hirose et al.
patent: 4735829 (1988-04-01), Hirose et al.
C. W. Macosko, Polymer Reprint, vol. 26, No. 2, p. 48, 8/85.
Macromolecular Chemistry (p. 1279 of vol. 186 published 1985.)

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