Photo-curable resin composition and process for preparing resin-

Details Photo-curable resin composition and process for preparing resin- Photo-curable resin composition and process for preparing resin-

1997-05-30

1999-08-03

Acquah, Samuel A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Compositions to be polymerized by wave energy wherein said...

526 72, 526 75, 526 88, 526 89, 5263181, 5263184, 522 35, 522 43, 522 64, 522 68, 522 82, 522 83, 264239, 264257, 26433111, 26433115, C08F 246, B27N 308

Patent

active

059326255

ABSTRACT:
A photo-curable resin composition suitable as a material for photo-fabricating and capable of producing cured products with excellent mechanical strength and high heat resistance. Further disclosed is a process for molding a resin-based mold which provides superior molding dimensional precision and superb repetition durability. The resin composition contains a monomer component containing (A) 30-70 wt % of a polyfunctional unsaturated monomer having a cyclic structure and (B) 70-30 wt % of a monofunctional unsaturated monomer having a cyclic structure of which the homopolymer has a glass transition temperature (Tg) of 70.degree. C. or higher; (C) a photo-initiator; and (D) an inorganic filler having an average particle diameter or an average fiber length of 1-50 .mu.m, wherein the ratio of the inorganic filler to 100 parts by volume of the monomer components and the photo-initiator is 100-160 parts by volume, and the heat distortion temperature of the cured resin produced from the photo-curable resin composition is 100.degree. C. or higher.

REFERENCES:
patent: 4575330 (1986-03-01), Hull
patent: 4942066 (1990-07-01), Fan
patent: 5002855 (1991-03-01), Fan
patent: 5496870 (1996-03-01), Chawla et al.
Derwent Abstract 008048476, JP 1232025, Sep. 1989.
Derwent Abstract 010200745, JP 7026062, Jan. 1995.
Derwent Abstract 010200743, JP 7026060, Jan. 1995.

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