Process for forming novolak resin compositions into molding...

Details Process for forming novolak resin compositions into molding... Process for forming novolak resin compositions into molding...

B - Operations, Transporting

29

B

18/946, 117/47.2

B29B 9/04 (2006.01) C08J 3/12 (2006.01)

Patent

CA 1096124

ABSTRACT OF THE DISCLOSURE Novolak phenolic resin compositions are formed into molding granules by homogenizing the composition above the melting point of the resin, calendering the homogenized composition with conversion into a coherent sheet, rolling the sheet between a pair of rollers, at least one of which is indented, to produce a coherent embossed sheet, fracturating the embossed sheet with separation of the granules having substantially the shape and size of the embossments, coating the granules with a phenolic compound and heat-treating the coated granules by flowing a stream of inert gas having a temperature not exceeding 130 C. The resulting granules are free-flowing, free from a tendency to release dust and particularly suitable for injection molding.

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