Molding of light reflector

Details Molding of light reflector Molding of light reflector

1988-10-14

1990-06-05

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Composite or multiple layer

249183, 264 11, 264230, 264241, 264313, 264334, B29D 1100, B29C 3902, B29C 3910

Patent

active

049312278

ABSTRACT:
A light reflection material comprises transparent body of organic glass having therein a thin through hole or holes whose inner wall is smooth. This material is useful for an ornamental material, a lighting material, eye-obstructing material, shading material, etc.
This material is manufactured by pouring a raw material into a mold within which a thread or threads of synthetic fiber are straightly or curvedly set according to aimed pattern and pulling the thread or threads out of the formed body to form a thin hole or holes or pulling the thread or threads to separate them from the inner wall of the hole or holes. As a result of it, a hole or holes of a shape and number corresponding to those of the thread or threads are formed in the formed body.

REFERENCES:
patent: 2154639 (1939-04-01), Rohm et al.
patent: 3245316 (1966-04-01), Janetos et al.
patent: 3306956 (1967-02-01), Barnette
patent: 3980747 (1976-09-01), Nakagawa et al.
patent: 4552716 (1985-11-01), Habich

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