Nucleation control adapted for reaction injection molded...

Details Nucleation control adapted for reaction injection molded... Nucleation control adapted for reaction injection molded...

B - Operations, Transporting

29

C

73/124, 18/660,

B29C 44/60 (2006.01) B29B 7/74 (2006.01) G01N 7/14 (2006.01) B29C 67/24 (2006.01)

Patent

CA 1147117

C-3,259 NUCLEATION CONTROL ADAPTED FOR REACTION INJECTION MOLDED SLURRIES Abstract of the Disclosure A novel apparatus and method are provided for monitoring gas entrainment in liquid precursors for reaction injection molding (RIM). In accordance with the invention, a nucleated RIM precursor is sampled and the sample subjected to a controlled volumetric change. The measured pressure of the expanded or compressed sample is compared to that corresponding to the ideal degree of gas entrainment. The comparison is used to control the addition or withdrawal of en- trained gas.

373099

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