Wood composites of low formaldehyde emission

Details Wood composites of low formaldehyde emission Wood composites of low formaldehyde emission

1982-09-10

1983-10-11

Phynes, Lucille M.

Stock material or miscellaneous articles

Composite

Of aldehyde or ketone condensation product

524 27, 524593, 524596, 524597, 524598, 524843, 525399, 528259, B32B 2742

Patent

active

044092938

ABSTRACT:
A process for bonding lignocellulosic material under heat and pressure, where the bonded lignocellulosic material is characterized by a low emission of formaldehyde, which comprises applying a binder to said lignocellulosic material, said binder comprising a urea-formaldehyde base resin having a ratio of formaldehyde to urea of 1.0:1-1.2:1, said base resin having essentially no free formaldehyde and said base resin when cured containing substantially more methylene groups than methylene ether groups, consolidating said lignocellulosic material and curing the binder.

REFERENCES:
patent: 1790461 (1931-01-01), Cherry
patent: 1865398 (1932-06-01), Goldschmidt et al.
patent: 2346999 (1942-04-01), Sandford et al.
patent: 2442897 (1948-06-01), Loughborough
patent: 3102108 (1963-08-01), Aebi et al.
patent: 3957703 (1976-05-01), Ludwig et al.
patent: 4129547 (1978-12-01), Noyes
patent: 4247433 (1981-01-01), Schamberg et al.

Affiliated with

Also associated with

Rating

Wood composites of low formaldehyde emission does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Wood composites of low formaldehyde emission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wood composites of low formaldehyde emission will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1275579