Bonded foam product manufactured with vegetable oil polyol and method for manufacturing
US7566406B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 20, 2005 |
| Grant date | Jul 28, 2009 |
| Priority date | — |
| Expiry date | Oct 31, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249982
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A bonded foam product manufactured with a vegetable oil polyol is herein disclosed. The pre-polymer for use as a binder in the manufacture of a bonded foam product comprises an isocyanate and a vegetable oil polyol, wherein the pre-polymer is substantially free of any petrochemical polyol. In another aspect, the invention is method for making a bonded foam product, the method comprising coating a plurality of foam pieces with a pre-polymer, the pre-polymer comprising an isocyanate and a vegetable oil polyol, wherein the pre-polymer is substantially free of any petrochemical polyol, compressing the foam pieces into a foam log of a desired density, and steaming the foam log to cure the pre-polymer. If desired, a process oil may be added to the pre-polymer to modify the viscosity of the pre-polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.