Method of making a foraminous member

Details Method of making a foraminous member Method of making a foraminous member

1983-08-23

1985-04-30

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

264132, 264136, 264233, 430308, B29D 720

Patent

active

045143455

ABSTRACT:
A process for making relatively thick foraminous members the foramina of which form a preselected pattern. The backing film such as a thermoplastic film is placed in contact with a rotating drum. A foraminous woven element about which the foraminous member will be constructed is placed in contact with the thermoplastic backing film. Liquid photosensitive resin is supplied to a controlled thickness. A mask comprising the preselected pattern is placed adjacent the photosensitive resin and the resin is exposed through the mask to the light of an activating wavelength. Uncured resin is washed from the composite leaving behind the completed foraminous member.

REFERENCES:
patent: 2480749 (1949-08-01), Marks
patent: 2556504 (1951-06-01), Prestwich
patent: 2860576 (1958-11-01), Short
patent: 3438504 (1969-04-01), Furman
patent: 3658620 (1972-04-01), Hall
patent: 3713935 (1973-01-01), Grecchi
patent: 3878019 (1975-04-01), Chapman et al.
patent: 4042654 (1977-08-01), Leszyk et al.
patent: 4054635 (1977-10-01), Schlesinger et al.
patent: 4291116 (1981-09-01), Tibbetts

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