Adhesive compositions containing cyclic siloxanes and methods for use thereof
AssigneeDesigner Molecules, Inc.
InventorFarhad G. Mizori
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Abstract
The invention is based on the discovery that certain well-defined functionalized cyclic siloxanes are useful as thermosetting resins for the electronic packaging industry. The functionalized cyclic siloxane compounds described herein can be cured in a variety of ways, depending on the polymerizable moiety incorporated into the compound. Invention cyclic siloxanes are readily prepared via hydrosilation of polyalkyl(hydro)cyclosiloxanes with appropriately functionalized alkenes and/or alkynes.
Claims10
A compound having the structure:
- wherein:
- A is a siloxane ring,
- each R is independently selected from the group consisting of C1 to about C20 alkyls,
- each L is independently selected from the group consisting of a substituted or unsubstituted alkylene, a substituted or unsubstituted oxyalkylene, and covalent bond,
- at least one E is a polymerizable moiety, and
- n is an integer having the value of between 3 to about 6,
- with the further proviso that at least one E is different from at least one other E, and that each E is independently selected from the group consisting of maleimide, styrenic, vinyl ester, vinyl ether, itaconate, fumarate, oxetane, oxazoline, benzoxazine, cyanate ester and propargyl ether.
A compound, having the structure selected from the group consisting of compounds 2, 4-8, and 10-15:
A compound having the structure:
Dependencies are inferred from the claim text.