Chromium-free wood preservatives

Details Chromium-free wood preservatives Chromium-free wood preservatives

1993-01-21

1994-04-19

Green, Anthony

Compositions: coating or plastic

Coating or plastic compositions

Contains fireproofing or biocidal agent

106 1832, 424405, 514 64, 514500, 514642, 514947, 556112, C09D 514, A01N 5502, B27K 352

Patent

active

053042379

ABSTRACT:
A water-soluble chromium-free wood preservative comprising at least one copper salt and an alkanolamine and a polymeric quaternary ammonium borate formed by simultaneous reaction of (A) an amine selected from the group consisting of ##STR1## wherein R.sub.1 is alkyl or alkenyl of 8 to 22 carbon atoms or when R.sub.2 and R.sub.3 are --(C.sub.2 H.sub.4 O).sub.x --H or --(C.sub.3 H.sub.6 O).sub.x --H, R.sub.1 is alkyl of 1 to 22 carbon atoms, R.sub.2 is selected from the group consisting of hydrogen, alkyl of 1 to 22 carbon atoms, --(C.sub.2 H.sub.4 O).sub.x --H, --(C.sub.3 H.sub.6 O).sub.x --H and --CH.sub.2 --CH.sub.2 --NH.sub.2, R.sub.3 is selected from the group consisting of hydrogen, --(C.sub.2 H.sub.4 O).sub.x --H, --(C.sub.3 H.sub.6 O).sub.x --H and CH.sub.2 --CH.sub.2 --CH.sub.2 NH.sub.2, R.sub.4 and R.sub.6 are individually alkyl of 1 to 4 carbon atoms or --(CH.sub.2 H.sub.4 O).sub.x --H or --(C.sub.3 H.sub.6 O).sub.x --H, R.sub.5 and R.sub.2 are individually --(C.sub.2 H.sub.4 O).sub.x --H or -- (.sub.3 H.sub.6 O).sub.x --H, A is selected from the group consisting of --(CH.sub.2).sub.n --, --(CH.sub.2 --CH.sub.2 OCH.sub.2).sub.n -- and --(CH.sub.2 CH.sub.2 NHCH.sub.2 CH.sub.2).sub.n --, x is an integer of 1 to 55 and n is an integer of 1 to 20, (B) 2 to 20 moles of ethylene oxide or propylene oxide and (C) 0.6 to 1.5 moles of a member of the group consisting of boric acid, boric acid salts and boric acid esters per mole of nitrogen equivalent of (A) useful for impregnating wood exposed to weather conditions or installed in contact with soil.

REFERENCES:
patent: 2924505 (1960-02-01), Page, Jr.
patent: 4496613 (1985-01-01), Zagefka et al.
patent: 4613373 (1986-09-01), Umeno et al.
patent: 4661157 (1987-04-01), Beauford et al.
patent: 4808407 (1989-02-01), Hein et al.
patent: 4970201 (1990-11-01), Giebeler et al.
patent: 5078912 (1992-01-01), Goettsche et al.

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