Process for producing resin moldings having a concave-convex pat

Details Process for producing resin moldings having a concave-convex pat Process for producing resin moldings having a concave-convex pat

1992-03-25

1994-01-25

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Utilizing plasma, electric, electromagnetic, particulate, or...

264 14, 264 25, 264571, 264102, 264106, 264220, 264DIG78, 264334, 425810, B29C 3942

Patent

active

052813720

ABSTRACT:
A process for producing a resin molding having a concave-convex pattern on the surface includes the steps of providing an original die having a concave-convex pattern on the surface and a substrate having a flat surface, thereby counterposing the concave-convex pattern surface and the flat surface to each other through a spacer and forming a cell with a cavity formed by the original die, the substrate and the spacer; making an internal pressure of the cell cavity lower than an external pressure thereof, thereby filling at least one of a liquid polymerizable component and a liquid resin into the cavity due to a pressure difference between the external pressure and the internal pressure; curing at least one of the polymerizable component and the liquid resin in the cavity, thereby making a replica; and peeling the original die from the replica, thereby obtaining a resin molding.

REFERENCES:
patent: 2985928 (1961-05-01), Heskett
patent: 4257988 (1981-03-01), Matos et al.
patent: 4303608 (1981-12-01), Ticker et al.
patent: 4342714 (1982-08-01), Gregg et al.
patent: 4359437 (1982-11-01), le Comte
patent: 4477328 (1984-10-01), Broeksema et al.
patent: 4482511 (1984-11-01), Komatsubara
patent: 5048745 (1991-09-01), Sato et al.

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