Preparation and use of pelletized submicron pigment powder/polym

Details Preparation and use of pelletized submicron pigment powder/polym Preparation and use of pelletized submicron pigment powder/polym

1995-03-07

1996-12-31

Cain, Edward J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524432, 524437, 524495, 524496, 524497, 528490, C08K 310

Patent

active

055895310

ABSTRACT:
This disclosure relates to a process for preparing co-pelletized submicron pigment powder/polymer pellets in a dry drum pelletizing process using a thermoplastic polymer as seed pellets. Also disclosed is a process for using the co-pelletized product either for formation of masterbatch or for directly introducing at least one pigment into thermoplastic media.

REFERENCES:
patent: 2719135 (1952-12-01), Wood
patent: 4369267 (1983-01-01), Keung et al.
patent: 5304588 (1994-04-01), Boysen et al.
S. S. Voyutsky et al., "Causes of the Granulation of Powders" Colloid J. (USSR), 29-36 (1952). E. C. Nov. 8, 1996.
S. S. Voyutsky et al., "Pellitization of Powders By The Rolling Method" Light Industry (USSR), 12, 36 (1952).
T. K. Ross et al., "The Granulation of Carbon Black" Trans. Instn. Chem. Engrs., 39, 28 (1961).
H. P. Meissner et al., "Rate of Pellitization of Zinc Oxide Powders" Ind. Eng. Chem. Process Design and Development, 5, 10 (1966).
H. P. Meissner et al., "Spontaneous Pellitization In Fine Powders" Ind. Eng. Chem. Process Design and Development, 3, 197 (1964).
L. H. Ford et al., "The Mechanism of Binderless Granulation and Growth of Ceramic Spheres" J. Nuclear Materials, 43, 143 (1972).
Voyutsky et al., "Causes of the Granulation of Powders" Colloid J. (USSR) 14, 28 (1952).

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