Package for dry-resist material

Details Package for dry-resist material Package for dry-resist material

1986-07-03

1989-08-01

Foster, Jimmy G.

Special receptacle or package

With moisture absorbent

2062131, 206389, 2065246, 428 353, 428 359, B65D 8120, B65D 8124

Patent

active

048527327

ABSTRACT:
A package for photoresist material, particularly a dry resist, is substantially impermeable to water vapor, thereby preventing humidity-related effects which adversely influence the processability of the photoresist. The package can comprise a film tubing, the ends of which are closed by welding or gluing, into which a photoresist roll is placed. As the material for the film tubing, a composite material can be used which is formed of a polyester film as the support film, to which an aluminum foil is laminated or which is vacuum-metallized with aluminum and a polyethylene film laminated on top. A tinplate container can also be used as a package, the container being closed by soldering after placing the photoresist material inside the container. These packages generally have a permeability to water vapor of less than 0.01 gram of water vapor per square meter per day, at a humidity gradient of 97% and an ambient temperature of 23.degree. C.

REFERENCES:
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patent: 4258848 (1981-03-01), Akao
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patent: 4387126 (1983-06-01), Rebholz
patent: 4440824 (1984-04-01), Bonis
patent: 4629640 (1986-12-01), Akao
patent: 4680248 (1987-07-01), Roach

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