Stock material or miscellaneous articles – Impregnated naturally solid product – Wood timber product
Patent
1982-10-25
1983-12-13
Lesmes, George F.
Stock material or miscellaneous articles
Impregnated naturally solid product
Wood timber product
427393, 427440, B32B 2308, B05D 302
Patent
active
044205422
ABSTRACT:
An article and method for treating wood to promote preservation and inhibit fungi and bacteria attack, comprising the wood treated with a polymer with pendant groups containing pyridine rings complexed with copper. Treatment can include impregnating the wood through pressure, vacuum, soaking or other means or more superficial applications to the wood surface through brushing, painting, dipping or the like. Preferred are one-step and two-step procedures with poly-4-vinylpyridine as the polymer of choice and copper chloride or copper sulfate as the preferred copper ion source. Treatment can be with the monomer or homopolymer form, followed by polymerization and/or cross-linking in situ in the wood after application.
REFERENCES:
patent: 1766606 (1930-06-01), Coolidge
patent: 3968318 (1976-07-01), Betty
patent: 4143188 (1979-03-01), Huber-Nuesch
Lesmes George F.
Reilly Tar & Chemical Corp.
Swisher Nancy A. B.
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