Patent · US Active

Composite material comprising two or more superimposed layers of woods

US8563137B2 · kind B2 · utility

4Cited by

2References

20Claims

0Family size

Assignee

BASF SE

Inventors

Manfred Genz · Ostercappeln, DE
Hans U. Schmidt · Griesheim, DE
Stefan Ullmann · Birkenfeld, DE
Timo Prozeske · Stemshorn, DE
Stefan Meyer · Ronneburg, DE

Key dates

Filing date	Apr 26, 2010
Grant date	Oct 22, 2013
Priority date	—
Expiry date	Sep 11, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31591
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The invention relates to a composite material having two or more superimposed wood layers. Said layers are joined together by means of a one component polyurethane adhesive containing a prepolymer having free NCO groups and a wood having a volume fraction of libriform fibres in the region of between 50-70% is used.

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