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US 2017/0283558 A1Published application
Curable benzoxazine compositions with improved thermal stability
Assignee3M Innovative Properties Company
InventorsIlya Gorodisher, Gregory P. Sorenson, Mark McCormick, Katri M. Huikko, Robert J. Webb
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Abstract
A curable benzoxazine composition is described wherein the benzoxazine is derived from an aryl amine having a b.p.>200° C. The curable compositions are more thermally stable and have reduced weight loss and by-products upon cure.
Claims23
A curable composition comprising a curable benzoxazine of the formula:
- where
- each R1 is an alkyl or H;
- each R2 is an H, an alkyl, an aryl or a benzoxazine group;
- y is 1 to 4
- Raryl is derived from an aryl amine having a boiling point greater than 200° C.;
- N-Bz represents a nitrogen-linked benzoxazine group, and
- z is 0 to 3;
- and
- a curative selected from the group of a thiol compounds, amine compounds, and a combination thereof.
6 more elements
Dependencies are inferred from the claim text.