Blowing agent compositions of carbon dioxide and hydrochlorofluoroolefins
AssigneeArkema Inc.
InventorsBrett L. Van Horn, Benjamin Bin Chen, Philippe Bonnet
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Abstract
The present invention relates to blowing agent compositions of carbon dioxide and at least one hydrochlorofluoroolefin (HCFO). The HCFOs can include, but are not limited to, 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd), 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf) and mixtures thereof. The blowing agent compositions are useful in the production of low density insulating foams with improved k-factor made from thermoplastic resins The blowing agent compositions may also optionally include one or more hydrofluoroolefins (HFOs).
Claims26
A thermoplastic foam product comprising a thermoplastic and a blowing agent composition, wherein the blowing agent composition comprises carbon dioxide and at least one hydrochlorofluoroolefin and wherein the thermoplastic foam product has a density of less than about 63 kg/m3.
A thermoplastic foam product comprising a thermoplastic and a blowing agent composition, wherein the blowing agent composition comprises carbon dioxide and at least one hydrofluoroolefin and wherein the thermoplastic foam product has a density of less than about 63 kg/m3.
Dependencies are inferred from the claim text.