Method of making a crosslinked silicone foam, crosslinked silicone foams preparable thereby, and adhesive article including the same
Assignee3M Innovative Properties Company
InventorsJunkang J. Liu, Pingfan Wu, Jeffrey P. Kalish, Lianzhou Chen
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Abstract
Crosslinked silicone foams can be prepared from first and second poly(organosiloxane)s using electron beam radiation. The first poly(organosiloxane) has Si—H groups and the second poly(organosiloxane) has Si—OH groups. Adhesive articles including pressure-sensitive adhesive crosslinked silicone foams are also disclosed.
Claims23
A method of making a crosslinked silicone foam, the method comprising:
- disposing a crosslinkable composition on a first substrate, wherein the crosslinkable composition comprises components:
- (i) at least one first poly(organosiloxane) having a plurality of Si—H groups, and
- (ii) at least one second poly(organosiloxane) having a plurality of Si—OH groups;
- and
- exposing the crosslinkable composition to high energy radiation in an amount effective to form a crosslinked poly(organosiloxane) foam disposed on the first substrate.
(canceled)
A crosslinked poly(organosiloxane) foam comprising Si—H groups and Si—OH groups wherein the crosslinked poly(organosiloxane) foam is free of an effective amount of organic peroxide and an effective amount of dehydrogenative coupling catalyst for the reaction of the Si—H groups with the Si—OH groups.
(canceled)
-24. (canceled)
Dependencies are inferred from the claim text.