Phosphate-free machine dishwashing composition

Details Phosphate-free machine dishwashing composition Phosphate-free machine dishwashing composition

1977-10-17

1980-05-20

Willis, Jr., P. E.

Compositions

Compositions containing a single chemical reactant or plural...

Organic reactant

252 99, 25217414, 25217421, 25217424, 252DIG2, 252DIG11, C11D 308, C11D 310, C11D 726

Patent

active

042038588

ABSTRACT:
A low-foaming machine dishwashing composition comprising (1) an alkali metal, or ammonium, carbonate and (2) a water soluble salt of a polyelectrolyte having an average molecular weight of about 500-4000 and the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.4, and R.sub.5 can be hydrogen, C.sub.1 -C.sub.4 lower alkyl, or a combination thereof; R.sub.3 and R.sub.6 can be hydrogen, carboxy, or alkylcarboxy; and the sum of (a+b) is .gtoreq.5 to .ltoreq.30, preferably .gtoreq.7 to .ltoreq.15, employed in a weight ratio (polyelectrolyte:carbonate) of 5:95-20:80, and, preferably, a low foaming surfactant, results in effective and economical dishwashing.

REFERENCES:
patent: 3579455 (1971-05-01), Sabatelli et al.
patent: 3627686 (1971-12-01), Sabatelli et al.
patent: 3700599 (1972-10-01), Mizuno et al.
patent: 3764559 (1973-10-01), Mizuno et al.
patent: 3850852 (1974-11-01), Neillie et al.
patent: 3896056 (1975-07-01), Benjamin et al.
patent: 3904685 (1975-09-01), Shahidi et al.
patent: 3922230 (1975-11-01), Lamberti et al.

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