Claims
- 1. A process for the production of a molding by reacting a reaction mixture comprising
- a liquid, room temperature stable isocyanate having an isocyanate group content of from about 21 to 25% by weight and being the reaction product of
- A) a methylene bis(phenyl isocyanate) consisting of no more than 0.25% by weight of the 2,2'-isomer, from 12 to 25% by weight of the 2,4'-isomer, and from 75 to 88% by weight of the 4,4'-isomer with the amount of said isomers totalling 100%, and
- B) a poly-1,2-propylene ether glycol having a molecular weight of from 134 to 700;
- 2) one or more relatively high molecular weight polyether polyols containing at least two hydroxyl groups;
- 3) one or more relatively low molecular weight chain extenders; and
- 4) at least one filler,
- wherein said reaction mixture is processed as a one-shot system by the RIM process at an isocyanate index of from about 70 to about 130.
- 2. The process of claim 1, wherein said component B) is tripropylene glycol.
- 3. The molding produced according to the process of claim 1.
Parent Case Info
This application is a continuation, of application Ser. No. 08/144,916 filed Oct. 28, 1993, now abandoned.
US Referenced Citations (47)
Continuations (1)
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Number |
Date |
Country |
Parent |
144916 |
Oct 1993 |
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