Crosslinked epoxy functionalized polydiene block polymers and adhesives
AssigneeShell Oil Company
InventorJames R. Erickson
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Abstract
A crosslinked adhesive composition is provided comprising an epoxidized diolefin block polymer wherein the polymer is crosslinked through at least some of the epoxy functionality. A process to prepare this polymer is also provided. The preferred polymer is partially hydrogenated and lightly epoxidized.
Claims7
An epoxidized diolefin block polymer which is chemically crosslinked through at least some of the epoxy functionality and has sufficient gel content to provide increased resistance to temperature and/or organic solvents.
A process for the preparation of epoxidized chemically crosslinked diolefin block polymers comprising the steps of:
- a) providing a polymer comprising monomer units of at least one conjugated diolefin;
- b) epoxidizing the polymer;
- and
- c) chemically crosslinking the epoxidized polymer to result in a crosslinked polymer which is crosslinked through at least some of the epoxy functionality.
Dependencies are inferred from the claim text.