Pellets useful in production of plastic resin materials

Details Pellets useful in production of plastic resin materials Pellets useful in production of plastic resin materials

1991-03-01

1993-01-05

Bell, Mark L.

Compositions: coating or plastic

Materials or ingredients

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

106272, 106400, 106401, 106464, 106469, C09C 308, C09C 310

Patent

active

051767511

ABSTRACT:
A color concentrate pellet and a method for producing same. Pigment and carrier, both in powdered form, are placed in a high intensity bowl-type mixer. Small granules are produced. These granules are cold-pressed in a pellet mill and color concentrate pellets of a conventional size and shape are produced. These pellets contain up to 90% pigment by weight, and have a melting point of less than about 230.degree. F. The pellets are friable and are mixable and processable with commercially sized natural resin pellets without substantial settling out. The carrier in the pellet acts as a universal carrier. Pellets with additives in substitution for pigments are also disclosed.

REFERENCES:
patent: 2952888 (1960-09-01), Cornelius
patent: 3764362 (1973-10-01), Hinley et al.
patent: 3778288 (1973-12-01), Ridge et al.
patent: 4080134 (1978-03-01), Klaeysen et al.
patent: 4446086 (1984-05-01), Molenaar et al.
patent: 4789321 (1988-12-01), Dingus
patent: 4834902 (1989-05-01), Pioch et al.
"The Production of A-C Polyethylene Color Concentrates", Technical Data Brochure for Plastics, No. PLS-002, from Allied Corporation, Morristown, N.J., (undated), 3 pages, particularly p. 2.
"Series CL Laboratory Pellet Mills", from California Pellet Mill Company, copyright 1987, 4 pages, particularly p. 3.

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