Method of manufacturing printing and embossing type elements

Details Method of manufacturing printing and embossing type elements Method of manufacturing printing and embossing type elements

1989-02-02

1990-07-24

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Stratified or layered articles

264120, 264122, 264126, B32B 3120

Patent

active

049434004

ABSTRACT:
Type capable of being used for both printing and embossing consists of a heat-curable resin and is divided into three layers. The uppermost layer constituting a typeface portion employs a finely divided granular heat-curable resin and exhibits a high hardness and surface smoothness. The lowermost layer constituting an impact face portion employs a coarse granular heat-curable resin and exhibits low hardness and elasticity. An intermediate layer formed by mixing these two layers at the interface between them constitutes a joint portion exhibiting intermediate hardness.

REFERENCES:
patent: 461890 (1891-10-01), Richardson
patent: 1599084 (1926-09-01), Gibson
patent: 2392521 (1946-01-01), Chollar
patent: 3825386 (1974-07-01), Bello et al.
patent: 4030868 (1977-06-01), Williams
patent: 4396564 (1983-08-01), Stuben et al.
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patent: 4472350 (1984-09-01), Urano
patent: 4473215 (1984-09-01), Rathfon, II et al.
Kosalek et al., Plated Glass-Filled Nylon Type Wheel, IBM Technical Disclosure Bulletin, vol. 20, No. 3, pp. 982-983, 8/1977.

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