Method of preparing polyacetal carboxylates

Details Method of preparing polyacetal carboxylates Method of preparing polyacetal carboxylates

1978-12-11

1980-05-06

Phynes, Lucille M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From aldehyde or derivative thereof as reactant

528239, 528245, C08G 214, C08G 236

Patent

active

042018587

ABSTRACT:
Ether and acetal carboxylates useful as detergent builders to replace sodium tripolyphosphate (STP) in detergent formulations are known to the art. Certain polymeric polycarboxylates are also known to the art but all of these products suffer from either having poor builder properties or they are not readily biodegradable. According to the present invention, a method is provided for preparing new and novel polymeric acetal carboxylates which are stable under laundry use conditions, but depolymerize in acid media, making the polymer fragments more readily biodegradable in waste streams.

REFERENCES:
patent: 3395125 (1968-07-01), Moyer
Achmatowicz et al., Chemii Ann. Soc. Chim. Polonorum, vol. 42, p. 453 (1968). _

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