D - Textiles – Paper – 21 – C
Patent
D - Textiles, Paper
21
C
D21C 5/02 (2006.01)
Patent
CA 2166092
A collector that is intended to be used at deinking of waste paper according to the flotation process. The collector includes a polyester obtained through reaction between polyalkylene glycol, di and/or tricarboxylic acid and/or anhydrides thereof as well as a saturated fatty acid with 12-18 carbon atoms. The polyester shows a molecular weight between 3000-10000.
L'invention concerne un collecteur qui est destiné à être utilisé dans le désencrage de papiers de rebut selon le procédé de flottation. Le collecteur comprend un polyester obtenu par réaction entre le polyalkylène-glycol, l'acide di et/ou tricarboxylique, et/ou des anhydrides de celui-ci, ainsi qu'un acide gras saturé possédant 12 à 18 atomes de carbone. Le polyester présente une masse moléculaire comprise entre 3 000 et 10 000.
Paart Enn
Wallberg Peter
Bim Kemi Ab
Gowling Lafleur Henderson Llp
LandOfFree
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