Polymeric foam powder processing techniques, foam powder...

Details Polymeric foam powder processing techniques, foam powder... Polymeric foam powder processing techniques, foam powder...

B - Operations, Transporting

29

B

B29B 17/04 (2006.01) B02C 4/04 (2006.01) B02C 4/28 (2006.01) B02C 4/42 (2006.01) B02C 25/00 (2006.01) B07B 1/20 (2006.01) B29B 13/00 (2006.01) B29B 17/02 (2006.01) B65D 90/54 (2006.01) C08J 11/08 (2006.01)

Patent

CA 2395455

This relates variously to techniques for comminuting polymeric foams, to techniques for preparing polymeric foams containing that comminuted foam, and to the resulting comminuted foam powder and polymeric foams. The procedures may be used on foams containing production contaminants such as polyolefins, paper, and foam skins and on other foams containing consumer contaminants such as wood, metal, leather, etc. The comminuted foam powder, with or without contaminants, preferably is screened or sifted to obtain a foam powder having a particle size of about 2 mm or less. Image

L'invention concerne des techniques de hachage de mousses polymériques, des techniques de préparation de mousses polymériques contenant la mousse hâchée, et la poudre de mousse hâchée et les mousses polymériques obtenues. Ces procédés peuvent être utilisés sur des mousses contenant des contaminants de production tels que des polyoléfines, du papier, et des peaux de mousse, et sur d'autres mousses contenant des contaminants de consommateur tels que le bois, le métal, le cuir, etc. La poudre de mousse hâchée, avec ou sans contaminants, est de préférence filtrée ou tamisée afin d'obtenir une poudre de mousse possédant une dimension de particule d'environ 2 mm ou moins.

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