Polyisocyanurate composition
US9181383B2 · kind B2 · utility
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Key dates
| Filing date | Aug 13, 2010 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | Apr 17, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/53
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polyisocyanurate foam composition, articles comprising the composition and a method of making the composition are described. The polyisocyanurate foam composition comprises the reaction product of a polyisocyanate compound; and a first polyester polyol comprising the residue of orthophthalic acid; a second polyester polyol comprising the residue of terephthalic acid; at least one polyether polyol having a functionality of at least 3 and a hydroxyl number greater than 200; and a physical blowing agent, wherein the isocyanate index is greater than 250.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.