Spin casting

Details Spin casting Spin casting

1982-07-27

1984-01-03

Lowe, James B.

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Rotational molding

264311, 425808, B29D 1100

Patent

active

044241755

ABSTRACT:
A method of using centrifugal force to reduce the effects of surface tension, viscosity and gravity on the shape of the concave surface in the spin casting of contact lenses.

REFERENCES:
patent: 3010153 (1961-11-01), Bittner
patent: 3408429 (1968-10-01), Wichterle
patent: 3660545 (1972-05-01), Wichterle
patent: 4002418 (1977-01-01), Wallace

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