Microstructure-bearing composite plastic articles and method of

Details Microstructure-bearing composite plastic articles and method of Microstructure-bearing composite plastic articles and method of

1989-12-08

1992-12-29

Thibodeau, Paul J.

Stock material or miscellaneous articles

Article having latent image or transformation

Striated for iridescence

428 369, 428 3691, 428172, 428412, 362 31, 362 32, B32B 310, F21V 704

Patent

active

051750309

ABSTRACT:
A microstructure-bearing composite plastic article can be superior, both in microstructure and in physical properties, when it is a composite of a tough, flexible substrate, at a surface of which is microstructure formed of a cured oligomeric resin having hard segments and soft segments, which cured resin is substantially confined to the microstructure portion of the composite. Such a composite plastic article can be made by depositing an uncured oligomeric resin composition onto a master negative molding surface in an amount barely sufficient to fill the cavities of the master, filling the cavities by moving a bead of the composition between a substrate and the master, and curing the deposited composition by ultraviolet radiation while keeping the temperature during curing to not more than 50.degree. C. above the typical use temperature of the finished composite plastic article.

REFERENCES:
patent: 3689346 (1972-09-01), Rowland
patent: 4374077 (1983-02-01), Kerfeld
patent: 4414316 (1983-11-01), Conley
patent: 4420502 (1983-12-01), Conley
patent: 4477529 (1984-10-01), Campbell
patent: 4576850 (1986-03-01), Martens
SPIE Proceedings, vol. 692 p. 235 (1986).

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