Insulation boards and methods for their manufacture
US7612120B2 · kind B2 · utility
24Cited by
4References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 13, 2003 |
| Grant date | Nov 3, 2009 |
| Priority date | — |
| Expiry date | Jan 9, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S521/902
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for producing polyisocyanurate insulation foams, the method comprising contacting an A-side stream of reactants that includes an isocyanate with a B-side stream of reactants that include a polyol and a blowing agent, where the blowing agent includes isopentane and n-pentane in a substantial absence of cyclopentane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.