Heat bonding polyurethane foams
US8535476B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 17, 2008 |
| Grant date | Sep 17, 2013 |
| Priority date | — |
| Expiry date | Feb 12, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249953
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for producing a laminate or composite structure comprises heat bonding a substrate to a polyurethane foam, wherein the polyurethane foam is produced using at least one natural oil derived polyol as at least a portion of the polyol used in making the polyurethane foam. The resulting laminate or composite structure comprises at least one foam produced from a polyol composition comprising at least one natural oil derived polyol and at least one substrate with the interface between the foam and substrate being that formed by heat bonding. The invention also includes any article comprising such a laminate or composite structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.