US 11,987,685 B2
Insulation performance foams
Ernest Byron Wysong, Chadds Ford, PA (US)
Assigned to THE CHEMOURS COMPANY FC, LLC, Wilmington, DE (US)
Appl. No. 17/052,633
Filed by THE CHEMOURS COMPANY FC, LLC, Wilmington, DE (US)
PCT Filed May 3, 2019, PCT No. PCT/US2019/030517
§ 371(c)(1), (2) Date Nov. 3, 2020,
PCT Pub. No. WO2019/213463, PCT Pub. Date Nov. 7, 2019.
Claims priority of provisional application 62/667,192, filed on May 4, 2018.
Prior Publication US 2021/0238378 A1, Aug. 5, 2021
Int. Cl. C08G 18/42 (2006.01); C08J 9/00 (2006.01); C08J 9/14 (2006.01); C08K 5/00 (2006.01); C08K 5/521 (2006.01)
CPC C08J 9/146 (2013.01) [C08G 18/42 (2013.01); C08J 9/0038 (2013.01); C08J 9/141 (2013.01); C08J 9/149 (2013.01); C08K 5/0066 (2013.01); C08J 2203/14 (2013.01); C08J 2203/162 (2013.01); C08J 2203/182 (2013.01); C08J 2205/052 (2013.01); C08J 2207/04 (2013.01); C08J 2375/06 (2013.01)] 19 Claims
 
1. A process of forming a foam, comprising reacting or extruding a foamable composition comprising
about 3.0 to about 4.0 weight percent of a mixture of E-CHCl═CHCF3 and E-CF3 CH═CHCF3 and about 13.0 to about 14.0 weight percent cyclopentane; or
about 10 to about 11 weight percent of a mixture of E-CHCl═CHCF3 and E-CF3CH═CHCF3 and about 9.0 to about 10.0 weight percent cyclopentane; or
about 14.0 to about 15.0 weight percent of a mixture of E-CHCl═CHCF3 and E-CF3 CH═CHCF3 and about 7.0 to about 8.0 weight percent cyclopentane;
under conditions effective to form a foam, and wherein the foamable composition further comprises one or more additional components selected from at least one polyol, at least one catalyst, at least one surfactant, water, at least one flame retardant agent, and at least one nucleating agent.