Resin cleaning composition comprising polyolefin, sulfonate, and

Details Resin cleaning composition comprising polyolefin, sulfonate, and Resin cleaning composition comprising polyolefin, sulfonate, and

1992-01-17

1993-08-24

Lieberman, Paul

Compositions

Fluent dielectric

N-containing

25217423, 25217414, 25217425, 252539, 252DIG2, C11D 112, C11D 122, C11D 310

Patent

active

052386082

ABSTRACT:
The present invention provides a cleaning composition for a resin molding machine which comprises 50 to 95% by weight of a polyolefin resin having a melt index of 0.01 to 0.5, 0.1 to 15% by weight of an acrylic copolymer, 2 to 30% by weight of a neutral salt of organic sulfonic acid and 0.1 to 10% by weight of basic magnesium carbonate, magnesium hydroxide, potassium carbonate, zinc carbonate or a mixture of two or more thereof.
This composition is suitable for the cleaning of the molding machine at a time of changeover of super-engineering plastics at the molding temperature of the plastics which is about 400.degree. C.

REFERENCES:
patent: 4430468 (1984-02-01), Schumacher
patent: 4838945 (1989-06-01), Fujii et al.
patent: 4838948 (1989-06-01), Bailey
patent: 4976788 (1990-12-01), Nohr et al.
patent: 4978707 (1990-12-01), Tanaka
patent: 5087653 (1992-02-01), Obama et al.
patent: 5139694 (1992-08-01), Kmiec

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