Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From aldehyde or derivative thereof as reactant
Patent
1977-08-22
1979-03-13
Anderson, Harold D.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From aldehyde or derivative thereof as reactant
560180, 252 89R, 528250, 528243, 528232, 562583, 562587, 2603457R, 2603458R, C08G 214, C08G 230, C08L 5902
Patent
active
041442261
ABSTRACT:
Ether and acetal carboxylates useful as detergent builders to replace sodium tripolyphosphate (STP) in detergent formulations are known to the art. According to the present invention, new and novel polymeric acetal carboxylates are provided which are stable under laundry use conditions, but depolymerize in acid media, making the polymer fragments more readily biodegradable in waste streams.
REFERENCES:
patent: 3704320 (1972-11-01), Lannert
patent: 3706672 (1972-12-01), Martin et al.
patent: 3725290 (1973-04-01), Nelson et al.
patent: 3781349 (1973-12-01), Ramsey et al.
Achmatowicz et al., "The Reaction of Esters of Mesoxalic Acid and Glyoxylic Acid with Furan", Roczniki Chemii Ann. Soc. Chim. Polonorum 42, 453 & 456 (1968).
Crutchfield Marvin M.
Papanu Victor D.
Warren Craig B.
Anderson Harold D.
Grattan E. P.
Monsanto Company
Nielsen E. A.
Shearin F. D.
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