Particulate opacifying extender for polymer coatings

Details Particulate opacifying extender for polymer coatings Particulate opacifying extender for polymer coatings

1993-02-23

1993-11-23

Group, Karl

Compositions: coating or plastic

Materials or ingredients

Pigment, filler, or aggregate compositions, e.g., stone,...

106 1834, 10628732, 106400, 423511, 4235661, 4235671, C01B 1700, C09G 100

Patent

active

052640310

ABSTRACT:
A colloidal sulfur particle opacifying extender scatters light across the visible spectrum to result in an overall colorless appearance. A process for opacifying and extending a matrix which can be a water-borne emulsion or a coating, using the colloidal sulfur particles, and opacified and extended water-borne emulsions and coatings including the colloidal sulfur particles are also provided.

REFERENCES:
patent: 2063835 (1936-12-01), Billson
patent: 3222301 (1965-12-01), Dahm
patent: 3228909 (1966-01-01), Oddo
patent: 3311587 (1967-03-01), Fox
patent: 3450667 (1969-06-01), Kopacki
patent: 4240949 (1980-12-01), Ecker
patent: 4278510 (1981-07-01), Chien et al.
patent: 4537922 (1985-08-01), Chang et al.

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