Back to results
US 11,447,616 B2Granted
Blowing agent compositions for insulating foams
AssigneeOwens Coming Intellectual Capital, LLC
InventorsYadollah Delaviz, Chase Boudreaux, Xiangmin Han, S. Thomas Brammer, Barbara Ann Fabian, Mitchell Zane Weekley, Jeffrey Thomas
Life of this patent
Estimating the term…
Abstract
Disclosed is a blowing agent composition comprising a hydrofluoroolefins (HFO) and a branched hydrocarbon, and a foamable polymer composition comprising the blowing agent composition. Also disclosed is a method of making a polymer foam utilizing a blowing agent composition comprising an HFO and a branched hydrocarbon.
Claims3
A foamable polymer composition comprising:
- a matrix polymer composition comprising polystyrene;
- and
- a blowing agent composition comprising:
- from 1 to 5 wt. % of a hydrofluoroolefin (HFO) blowing agent, the HFO blowing agent consisting of 1,1,1,4,4,4-hexafluoro-2-butene;
- from 0.05 to 1 wt. % of a branched hydrocarbon blowing agent, the branched hydrocarbon blowing agent consisting of isobutane;
- and
- from 0.05 to 5 wt. % of a hydrofluorocarbon (HFC) blowing agent, the HFC blowing agent consisting of 1,1-difluoroethane,
- wherein the foamable polymer composition contains essentially no water, and
- wherein each wt. % is based upon the total weight of the foamable polymer composition.
6 more elements
Dependencies are inferred from the claim text.