Compositions – Leather or fur treating
Patent
1989-08-10
1991-06-04
Stoll, Robert L.
Compositions
Leather or fur treating
166308, E21B 4326
Patent
active
050211714
ABSTRACT:
A process which comprises (A) combining (i) glycerol, erythritol, arabitol, xylitol, sorbitol, dulcitol, mannitol, inositol, a monosaccharide, or a disaccharide, (ii) water and (iii) lactic acid, glycolic acid, malic acid, citric acid, tartaric acid, saccharic acid, gluconic acid, glyceric acid or mandelic acid to provide an aqueous solution of the polyol and the .alpha.-hydroxy carboxylic acid, and (B) then at an alkaline pH of 10 or less reacting the solution with a tetravalent titanium compound of an inorganic acid at an .alpha.-hydroxy carboxylic acid:titanium mol ratio between about 0.5:1 and about 4:1 and a polyol:titanium mol ratio between about 0.25:1 and about 2:1.
REFERENCES:
patent: 4369124 (1983-01-01), Elphingstone et al.
patent: 4464270 (1984-08-01), Hollenbeak et al.
patent: 4470915 (1984-09-01), Conway
patent: 4502967 (1985-03-01), Conway
patent: 4609479 (1986-09-01), Smeltz
patent: 4749040 (1988-06-01), Hodge
patent: 4953621 (1990-09-01), Putzig et al.
E. I. Du Pont de Nemours and Company
Geist Gary L.
Stoll Robert L.
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