Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Tanning
Patent
1994-02-17
1995-11-07
Willis, Jr., Prince
Bleaching and dyeing; fluid treatment and chemical modification
Treatment of hides, skins, feathers and animal tissues
Tanning
8 9418, 8 9422, 8 9433, 8 9426, 252 857, 427389, C14C 318
Patent
active
054644518
ABSTRACT:
A process for the re-tanning of tanned leather or pelt, wherein the tanned leather pelt is re-tanned with
(A) a polymeric carboxylic acid, containing .alpha.-hydroxyacrylic units as constituent units of the polymer, optionally in salt form
with the proviso that for this re-tanning (A) is not employed immediately after a mineral tanning, immediately before a mineral re-tanning or after a mineral re-tanning and also not in a direct connection with a mineral after-treatment.
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patent: 4750906 (1988-06-01), Schmidt
Ullman's Encyclopedia of Industrial Chemistry, vol. A15, (1990), pp. 274-277. (month Unknown).
Thorstensen, "Practical Leather Technology", Robert E. Krieger Publishing Co., N.Y., (1976), pp. 231-237. (month Unknown).
Ullman's Encyclopedia of Industrial Chemistry, vol. A15, (1990), pp. 275-278. (month Unknown).
Chem. Abs. 95:134405f "Neutralization of Mineral-tanned leather", vol. 95, p. 80, Aug. 1981.
Derwent Abstract, of DE 3005699 A1 (English-language), Aug. 1981.
International Dictionary of the Leather and Allied Trades, Walter Freudenberg; Springer-Verlag, (New York) 1968; {cover page, {cover page, one index pages for the German-language letter "A", one index page for the English-language letter `S`, and a page from section #35} (Month unknown).
Leather Technician's Handbook, J. H. Sharphouse; Leather Producers' Association, (9 St. Thomas Street, London SE1); {cover page, pp. 167-168} (Date Unknown).
Denny Jacques P.
Sorolla Josep R.
Battle Carl W.
Diamond Alan D.
Honor Robert S.
Morris Michael P.
Muenzing Chemie GmbH
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