Compositions – Water-softening or purifying or scale-inhibiting agents
Patent
1990-12-03
1992-04-28
Lieberman, Paul
Compositions
Water-softening or purifying or scale-inhibiting agents
252558, 25217414, 252DIG1, 134 7, 134 8, 134 2217, C11D 337
Patent
active
051086450
ABSTRACT:
A detergent resin composition is provided which is, in a small quantity, capable of very effectively deterging the inside of molding machines in a short period of time at the time of change-over of chlorine-containing resins inside the machines, which composition is obtained by blending 50 to 95% by weight of a polystyrene resin, 0.1 to 15% by weight of a polymethyl methacrylate, 2 to 30% by weight of a neutral salt of a sulfonic acid and 0.1 to 10% by weight of basic magnesium carbonate, magnesium hydroxide, aluminum hydroxide, zinc carbonate or a mixture thereof, the respective proportions being based upon the weight of the composition.
REFERENCES:
patent: 4838945 (1989-06-01), Fujii et al.
patent: 4838948 (1989-06-01), Bailey
patent: 4863524 (1989-09-01), Komabashiri et al.
patent: 4904309 (1990-02-01), Komabashiri et al.
Fujii Hiroyuki
Obama Kenjiro
Yamada Kentaro
Chisso Corporation
DiNunzio Mary
Lieberman Paul
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