Preparation and use of nanosize pigment compositions

Details Preparation and use of nanosize pigment compositions Preparation and use of nanosize pigment compositions

Filed on

2005-06-07

Date issued

2005-06-07

Examiner

Green, Anthony J. (Department: 1755)

Patent Class

Compositions: coating or plastic

SubClass

Materials or ingredients

SubSubClass

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

Other Related Categories

C106S413000, C106S494000, C106S495000, C106S496000, C106S497000, C106S498000, C106S499000, C106S503000

Type

Reexamination Certificate

Status

active

Patent number

06902613

Description

ABSTRACT:
A mixture of an organic nanosize pigment comprising of from 50 to 99% by weight of the nanosize pigment and 1 to 50% by weight based of a low molecular weight naphthalene sulfonic acid formaldehyde polymer and its use as a particle growth and crystal phase director for the preparation of a direct pigmentary organic pigment or in pigment finishing.

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B. R. Hsieh et al, Journal of Imaging Science and Technology, vol. 45 (1), pp. 37-42, “organic Pigment Nanoparticle Thin Film Devices via Lewis Acid Pigment Solubilization and In Situ Pigment Dispersions” (Jan./Feb. 2001).

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