Flexible sheet material

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B - Operations, Transporting

29

C

18/653

B29C 67/20 (2006.01)

Patent

CA 1102065

Title: Flexible Sheet Material ABSTRACT OF THE DISCLOSURE A wear-resistant flexible sheet material, suitable for use as outer soles on footwear, is produced by pressing reconstituted polyurethane foam sheets in the substantial absence of air at temperatures above 150°C. The sheets should have a density exceeding 15 lb/ft2 and are further densi- fied by the hot pressing. The sheets are preferably pre-heated to 175-210°C and pressed under a pressure of 5 to 30 tons/ft2 for periods of up to 5 minutes. The sheets may be embossed or smooth surfaced and may contain pigments, plasticisers and other additions. -1-

295042

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