Formaldehyde-free protein-containing binder compositions
US8809477B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 2011 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Aug 7, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31982
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A wood-containing composite are described that may include a lignocellulosic material, and a formaldehyde-free binder in contact with at least a portion of the lignocellulose material. The binder is formed from a binder composition that includes a soy flour, a polymer, and a crosslinking agent, at least a portion of each of which are covalently crosslinked to each other in the binder. Also described are methods of making wood-containing composites by providing a pre-mixed, one-part binder composition of at least 60 wt. % soy flour, a polymer, and a crosslinking agent. The binder composition is applied to lignocellulosic material, and the combination may be heated at a temperature of about 100° C. or more to cure the binder composition into a binder. The cured binder has the soy protein, polymer, and crosslinking agent covalently bonded to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.