Metal chromate pigment compositions

Details Metal chromate pigment compositions Metal chromate pigment compositions

1978-11-21

1981-01-27

Hearn, Brian E.

Compositions: coating or plastic

Coating or plastic compositions

Carbohydrate or derivative containing

106302, 106308B, 106308F, 106308Q, C09C 120

Patent

active

042473381

ABSTRACT:
Metal chromate and particularly lead chromate pigment compositions exhibiting low dusting characteristics and improved heat stability in thermoplastics are described. The pigment compositions consist essentially of a metal chromate-containing pigment and the combination of certain fatty acid salts with normally liquid ester plasticizers. Lead chromate pigment compositions containing the combination of a zinc salt of a fatty acid with benzoate, phthalate, stearate or phosphate plasticizers are particularly preferred and exhibit reduced dusting as well as outstanding advantages in heat stability not realizable with either the fatty acid salt or plasticizer alone or by silica encapsulation of the pigment particles.

REFERENCES:
patent: 2184539 (1939-12-01), Wiggam
patent: 3470007 (1969-09-01), Linton
patent: 3909488 (1975-09-01), Consoli
patent: 3973982 (1976-10-01), Bingham
patent: 4115143 (1978-09-01), Batzar

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