Crosslinked elastomers containing benzocyclobutene derivatives as crosslinking agents
AssigneeShell Oil Company
InventorPui K. Wong
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Abstract
Polymeric compositions which may be readily crosslinked at temperatures above about 200.degree. C. comprise an elastomeric polymer possessing olefinic unsaturation and an effective amount of a benzocyclobutene derivative of the general formula ##STR1## where "X" is selected from the group consisting of ##STR2## where "R" is an alkylene group of 1 to 10 carbon atoms. Cured compositions are also claimed.
Claims19
A polymeric composition which may be readily crosslinked at temperatures above about 200.degree. C., said composition comprising an elastomeric polymer having olefinic unsaturation and an effective crosslinking amount of a benzocyclobutene derivative having the general formula ##STR12## where "X" is selected from the group consisting of ##STR13## where "R" is an alkylene group of 1 to 10 carbon atoms.
A process for preparing a crosslinkable polymeric composition which comprises combining an elastomeric polymer having olefinic unsaturation with a benzocyclobutene derivative of the general formula ##STR14## wherein "X" is selected from the group consisting of ##STR15## wherein "R" is an alkylene group of 1 to 10 carbon atoms, and in an amount effective for crosslinking the elastomeric polymer.
A process for preparing a polymeric composition which comprises combining an elastomeric polymer having olefinic unsaturation with a benzocyclobutene derivative of the general formula ##STR16## wherein "X" is selected from the group consisting of ##STR17## wherein "R" is an alkylene group of 1 to 10 carbon atoms, in an amount effective for crosslinking the elastomeric polymer, and heating the mixture at a temperature above about 200.degree. C. for a time sufficient to crosslink the elastomeric polymer.
Dependencies are inferred from the claim text.