Permanent decrease of wood hardness by in situ polymerization of

Details Permanent decrease of wood hardness by in situ polymerization of Permanent decrease of wood hardness by in situ polymerization of

1995-08-04

1998-03-24

Schoffer, Joseph L.

Stock material or miscellaneous articles

Composite

Of addition polymer from unsaturated monomers

427393, 427440, 428536, 4285371, 428541, B32B 2308, B32B 2108, B05D 300, B05D 118

Patent

active

057310963

ABSTRACT:
A wood article is submitted to a vacuum in an autoclave to remove air that it contains. Then, a solution which contains a wood preservative, a water-soluble cross-linkable prepolymer and a polymerization initiator is introduced into the autoclave. Polymerization to form a polymeric network in the wood article is carried out in an atmosphere substantially free of oxygen, while the preservative is chemically fixed to the wood. The result is a wood article with a permanently reduced hardness and an increased moisture content at equilibrium.

REFERENCES:
patent: 3713943 (1973-01-01), Huff
patent: 4205097 (1980-05-01), Arledter et al.
patent: 4304820 (1981-12-01), Deubzer et al.
patent: 4323602 (1982-04-01), Parker
patent: 4567115 (1986-01-01), Trumble
patent: 5098589 (1992-03-01), Motogami et al.

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