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US 12,509,566 B2Granted
Nucleating agents for PIR foams
AssigneeThe Chemours Company Fc, LLC
InventorsErnest Byron Wysong, Harrison K. Musyimi, James M. Tocyloski
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Abstract
The present application provides foams having improved insulation and thermal performance and processes of forming said foams. Exemplary foams described herein are prepared according to a process comprising reacting a foamable composition comprising a blowing agent and one or more nucleating agents, under conditions effective to form the foam.
Claims25
A process of forming a foam, comprising reacting a foamable composition comprising a blowing agent and one or more nucleating agents, under conditions effective to form a foam, wherein the nucleating agent is selected from:
- (E)-1,1,1,2,2,3,5,5,6,6,7,7,7-tridecafluoro-4-methoxyhept-3-ene;
- (E)-1,1,1,2,2,4,5,5,6,6,7,7,7-tridecafluoro-3-methoxyhept-3-ene;
- 1,1,1,2,2,3,4,5,6,6,7,7,7-tridecafluoro-5-methoxyhept-3-ene;
- (Z)-1,1,1,2,2,3,4,5,6,6,7,7,7-tridecafluoro-5-methoxyhept-3-ene;
- (E)-1,1,1,2,2,3,4,5,6,6,7,7,7-tridecafluoro-5-methoxyhept-3-ene;
- 1,1,1,2,3,4,5,5,6,6,7,7,7-tridecafluoro-4-methoxyhept-2-ene;
- (Z)-1,1,1,2,3,4,5,5,6,6,7,7,7-tridecafluoro-4-methoxyhept-2-ene;
- (E)-1,1,1,2,3,4,5,5,6,6,7,7,7-tridecafluoro-4-methoxyhept-2-ene;
- (Z)-1,1,1,2,2,4,5,5,6,6,7,7,7-tridecafluoro-3-methoxyhept-3-ene;
- (Z)-1,1,1,2,2,3,5,5,6,6,7,7,7-tridecafluoro-4-methoxyhept-3-ene;
- 3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluoro-1-octanol and 3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooct-1-ene;
- or any mixture thereof;
- and wherein the blowing agent comprises:
- (a) cyclopentane;
- and
- (b) a second component selected from HFO-1336mzz-Z, HFO-1336mzz-E, and HCFC-1233zd.
13 more elements
Dependencies are inferred from the claim text.