Thermoplastic foams and preparation thereof

Details Thermoplastic foams and preparation thereof Thermoplastic foams and preparation thereof

B - Operations, Transporting

29

D

18/661

B29D 27/00 (1980.01)

Patent

CA 1139916

ABSTRACT OF THE DISCLOSURE Extruded synthetic resinous thermoplastic foams of increased cell size are obtained when using volatile fluid blowing agents by incorporating a cell-size enlarging agent into the extruded compo- sition, the cell-size enlarging agent being liquid at the foaming temperature and generally soluble in the heat plastified foamable mixture. C-25,855

353070

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