Siloxane monomers and methods for use thereof
AssigneeDesigner Molecules, Inc.
InventorStephen M. Dershem
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Abstract
The invention provides novel siloxane monomers useful in a variety of adhesive applications. In one aspect, the siloxane compounds described herein can be used as Diels-Alder type curatives for bismaleimide or poly-maleimide monomers. The unsaturated resins shown here are attractive for use as maleimide curatives due to their poly-functionality. Each substituted styrenyl residue can react with two maleimide functional groups. Thus, an invention adhesive composition typically contains an excess of bismaleimide monomers.
Claims19
A cyclic or linear siloxane compound having the structure of formula I:
- wherein:
- R1 is selected from the group consisting of C1 to C10 alkyls;
- R2 is absent or is selected from the group consisting of C1 to C10 alkyls;
- E is an oxiranylene;
- Ar is a substituted or an unsubstituted phenyl;
- and
- n is an integer having the value between 1 and 20.
A compound having the structure 4:
A cyclic or linear siloxane compound having the structure of formula I:
- wherein:
- R1 is selected from the group consisting of C1 to C10 alkyls;
- R2 is absent or is selected from the group consisting of C1 to C10 alkyls;
- E is an alkenylene;
- Ar is a substituted phenyl comprising at least one substituent selected from the group consisting of an alkenyl, an alkynyl, hydroxy, mercapto, an unsubstituted cycloalkyl, a substituted cycloalkyl, an unsubstituted heterocyclic moiety, a substituted heterocyclic moiety, an unsubstituted aryl, a substituted aryl, an unsubstituted heteroaryl, a substituted heteroaryl, an unsubstituted aryloxy, a substituted aryloxy, a haloalkyl, cyano, nitrone, amido, —C(O)H, —C(O)—, —OC(O)—, —(O)CO—, —S—, —S(O)2—, —OC(O)—O—, —NR′—C(O)—, —NR′—C(O)—NR′—, and —OC(O)—NR′—, wherein R′ is selected from the group consisting of H, a lower alkyl, an acyl, an oxyacyl, carboxyl, carbamate, sulfonyl, sulfonamide, and sulfuryl;
- and
- n is an integer having the value between 1 and 20.
Dependencies are inferred from the claim text.