Compositions – Leather or fur treating
Patent
1989-06-01
1990-09-11
Maples, John S.
Compositions
Leather or fur treating
252 8511, 252 8514, 252 8515, 536 56, C09K 706
Patent
active
049561049
ABSTRACT:
Organophilic polymer adducts which are effective fluid loss control additives for oil base well-working fluids are prepared from an anionic or cationic water soluble polymer and one or more phosphatides. Preferred phosphatides are phosphoglycerides obtained from vegetable oils, most preferably commercial lecithin. Preferred polymers comprise polysaccharides or derivatives thereof and synthetic polymers.
REFERENCES:
patent: 3168475 (1965-02-01), Jordan et al.
patent: 4421655 (1983-12-01), Cowan
patent: 4571422 (1986-02-01), Symes et al.
patent: 4597878 (1986-07-01), House et al.
patent: 4728444 (1988-03-01), Clapper et al.
patent: 4735732 (1988-04-01), Clapper et al.
Cowan Jack C.
Granquist Victor M.
House Roy F.
House Roy F.
Maples John S.
Sayala Chhaya
Venture Chemicals, Inc.
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