Method of making thermally removable adhesives

Patent Number: 6,825,315
Issued: 11/30/2004
Official Filing: View the Complete Patent
Abstract: A method of making a thermally-removable adhesive is provided where a bismaleimide compound, a monomeric furan compound, containing an oxirane group an amine curative are mixed together at an elevated temperature of greater than approximately C. to form a homogeneous solution, which, when cooled to less than approximately C., simultaneously initiates a Diels-Alder reaction between the furan and the bismaleimide and a epoxy curing reaction between the amine curative and the oxirane group to form a thermally-removable adhesive. Subsequent heating to a temperature greater than approximately C. causes the adhesive to melt and allows separation of adhered pieces.
Filed: 12/21/2001
Application Number: 10/36,660
Government Interests: STATEMENT OF GOVERNMENT INTEREST This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention.