Glass flake reinforced reaction injection molded polymers

B - Operations – Transporting – 29 – C

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B29C 45/14 (2006.01) B29C 45/16 (2006.01) B29C 67/24 (2006.01) B29C 70/26 (2006.01) B29C 70/62 (2006.01) C08K 3/40 (2006.01)

Patent

CA 1190713

GLASS FLAKE REINFORCED REACTION INJECTION MOLDED POLYMERS Abstract: The physical properties of reaction in- jection molded (RIM) polymeric articles are substanti- ally improved by internally reinforcing them with flake glass filler particles. The flake glass is incorporated in the liquid chemical polymer precursors, and is co- injected with them into the mold. The flow of the liquids in the mold orients the glass flake to provide maximum improvement in physical properties in the hardened polymerized article. Molding with glass flake filler also substantially alleviates problems of surface waviness in RIM panels.

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