US 12,071,507 B2
Method and composition for improving adhesion of metathesis compositions to substrates
Anthony R. Stephen, South Pasadena, CA (US); Christopher J. Cruce, Poway, CA (US); Mark S. Trimmer, Monrovia, CA (US); and Michael A. Giardello, Pasadena, CA (US)
Assigned to MATERIA, INC.
Filed by MATERIA, INC., Pasadena, CA (US)
Filed on Apr. 18, 2018, as Appl. No. 15/955,876.
Application 15/955,876 is a continuation of application No. 15/109,703, previously published as PCT/US2015/011048, filed on Jan. 12, 2015.
Claims priority of provisional application 61/925,803, filed on Jan. 10, 2014.
Prior Publication US 2018/0237581 A1, Aug. 23, 2018
Int. Cl. C08G 61/02 (2006.01); B29B 15/12 (2006.01); C03C 17/32 (2006.01); C03C 25/30 (2018.01); C08G 61/08 (2006.01); C08J 5/04 (2006.01); C08K 3/36 (2006.01); C08K 3/40 (2006.01); C08K 5/14 (2006.01); C08K 5/5419 (2006.01); C08K 5/5425 (2006.01); C08K 7/14 (2006.01); C08K 7/28 (2006.01); C08L 65/00 (2006.01); C09D 165/00 (2006.01); B29K 309/08 (2006.01)
CPC C08G 61/02 (2013.01) [B29B 15/122 (2013.01); C03C 17/328 (2013.01); C03C 25/30 (2013.01); C08G 61/08 (2013.01); C08J 5/043 (2013.01); C08K 3/36 (2013.01); C08K 3/40 (2013.01); C08K 5/14 (2013.01); C08K 5/5419 (2013.01); C08K 5/5425 (2013.01); C08K 7/14 (2013.01); C08K 7/28 (2013.01); C08L 65/00 (2013.01); C09D 165/00 (2013.01); B29K 2309/08 (2013.01); C08G 2261/3325 (2013.01); C08G 2261/964 (2013.01); C08J 2323/20 (2013.01)] 11 Claims
 
1. A method for preparing a syntactic foam, comprising the steps of:
combining at least one cyclic olefin, at least one type of microparticulate density modulator, and an adhesion promoter comprising a functionalized silane and a peroxide to form a resin composition;
wherein the combined concentration of the functionalized silane and the peroxide present in the resin composition range from 0.5-3.5 phr and the amount of the peroxide present is equal to or greater than the amount of functionalized silane present;
adding at least one cyclic olefin metathesis catalyst to the resin composition to form a catalyzed resin composition; and
curing the catalyzed resin composition to form the syntactic foam,
wherein the at least one type of microparticulate density modulator is borosilicate glass microspheres, wherein the at least one cyclic olefin is a mixture of dicyclopentadiene and tricyclopentadiene, the functionalized silane is y-methacryloxypropyl-trimethoxy silane, and the peroxide is di-tert-butyl peroxide.