Patent · US Expired

Heat-curable tannin-based binding agents

US5532330A · kind A · utility

7Cited by

1References

9Claims

0Family size

Assignee

Rutgerswerke Aktiengesellschaft · DE

Inventors

Antonio Pizzi · Chantraine, FR
Willi Roll · Havixbeck, DE
Berthold Dombo · Mönchengladbach, DE

Key dates

Filing date	Oct 4, 1994
Grant date	Jul 2, 1996
Priority date	—
Expiry date	Oct 4, 2014

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L99/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A heat-curable, formaldehyde-free binding agent comprising a polyflavonoid type tannin and as a curing catalyst, a compound having a weak acid reaction curable at relatively high temperatures and compatible with cellulose containing materials such as wood chips for the production of particle boards.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.