Metastable metal colloids and preparation

Details Metastable metal colloids and preparation Metastable metal colloids and preparation

Filed on

1989-04-28

Date issued

1991-07-23

Examiner

Bowers, Jr., Charles L.

Patent Class

Radiation imagery chemistry: process, composition, or product th

SubClass

Radiation sensitive product

SubSubClass

Silver compound sensitizer containing

Other Related Categories

430292, 430346, 430495, 430964, G03C 1725

Type

Patent

Status

active

Patent number

050343130

Description

ABSTRACT:
A particulate metastable Group Ib metal colloid is prepared is formed by plating a Group Ib metal onto small nuclei in a suspension to form non-spherical particles of varying color. The preparation is stable below about 100.degree. C., but when coated onto a support, can be used to form a visible image by application of thermal energy.

REFERENCES:
patent: 4425570 (1984-01-01), Bell et al.
patent: 4762770 (1988-08-01), Bouldin et al.
Wang and Kerker, 24 Physical Review B, pp. 1777-1790 (1981).
Defensive Publication T 900,010.

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