Reinforcement for use in reaction injection molding

Details Reinforcement for use in reaction injection molding Reinforcement for use in reaction injection molding

B - Operations, Transporting

29

C

18/716

B29C 45/00 (2006.01) C08G 18/10 (2006.01) C08K 3/34 (2006.01) C08K 7/00 (2006.01)

Patent

CA 2018062

In accordance with the invention, a reinforcing agent is added to the polyol side before the Reaction Injection Molding (RIM) process. The agent of the invention comprise particulate flakes which are characterized by their fine particle size and high aspect ratio. It was surprisingly found that the incorporation of the agent of the invention in the RIM process yields molded parts with a good combination of properties including flexural and tensile modulus heat sag and reduction in the coefficient of linear thermal expansion and high Distinctness Of Image (DOI) values.

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