Molding resins and UV-transparent molds made from the resins

Details Molding resins and UV-transparent molds made from the resins Molding resins and UV-transparent molds made from the resins

Filed on

1992-07-21

Date issued

1994-01-04

Examiner

Berman, Susan

Patent Class

Static molds

SubClass

Container-type molding device

SubSubClass

Of named component

Other Related Categories

264 22, 264257, 522 24, 522 60, 522 96, 526301, 526319, 526346, B29C 3502, B28B 734, B27N 310, C08F 2602

Type

Patent

Status

active

Patent number

052753727

Description

ABSTRACT:
UV-transparent forming tools or molds are prepared for molding resins comprising a urethane acrylate, e.g. urethane dimethacrylate oligomer, and an alpha,beta-ethylenically unsaturated monomer, e.g., styrene, cured in the presence of a peroxide initiator. The resins are tough, durable and have a wide range of other desirable properties.

REFERENCES:
patent: 3297745 (1967-01-01), Fekete et al.
patent: 3700643 (1972-10-01), Smith et al.
patent: 3907751 (1975-09-01), Knight et al.
patent: 4073835 (1978-02-01), Otsuki et al.
patent: 4092443 (1978-05-01), Green
patent: 4650845 (1987-03-01), Hegel
patent: 5169571 (1992-12-01), Buckley

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