Claims
- 1. A process for preparing a tractable shaped article capable of being further shaped and cured into an intractable shaped article, said process comprising the steps of:
- (1) preparing a vinylidene monomer solution having dissolved therein an isocyanate terminated linear polyester/polyurethane resin free of ethylenic unsaturation;
- (2) gelling or thickening the vinylidene monomer solution by intermixing it with an organic diamine with sufficient agitation to form a homogeneous mixture;
- (3) shaping said mixture and reacting said homogeneous mixture in the absence of substantial polymerization of said vinylidene monomer to obtain a shaped tractable article; and
- (4) further shaping the shaped tractable article of Step (3) and polymerizing the vinylidene monomer until said shape becomes intractable.
- 2. A process of claim 1 carried out in admixture with an ethylenically unsaturated polyester resin.
- 3. A process of claim 1 carried out in admixture with 5-80 percent by weight of a fiber glass filler.
- 4. A composition of claim 2 carried out in the presence of 5-80 percent by weight fiber glass filler.
- 5. A process as claimed in claim 1 in which the thickened vinylidene monomer is shaped by casting the mixture into a mold or by compression molding.
Parent Case Info
This is a division, of application Ser. No. 676,531, filed Apr. 12, 1976, now U.S. Pat. No. 4,075,828.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
2912418 |
Johnson et al. |
Nov 1959 |
|
3886229 |
Hutchinson |
May 1975 |
|
Foreign Referenced Citations (1)
Number |
Date |
Country |
1239701 |
Jul 1971 |
GBX |
Divisions (1)
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Number |
Date |
Country |
Parent |
676531 |
Apr 1976 |
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