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

1997-12-30

2000-05-16

Zitomer, Fred

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

427393, 427440, 428511, 428513, 428514, 428536, 4285371, 428541, B32B 2108, B05D 300

Patent

active

060638834

ABSTRACT:
A wood article is submitted to a vacuum in an autoclave to remove air that it contains. Then, a solution which contains a water-soluble cross-linkable prepolymer, a polymerization initiator and optionally a wood preservative is introduced into the autoclave. Polymerization to form a polymeric network in the wood article is carried out in an atmosphere which may be substantially free of oxygen, while the optionally present 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: 5731096 (1998-03-01), Besner

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