Dispersants

Details Dispersants Dispersants

B - Operations, Transporting

01

F

B01F 17/00 (2006.01) B01F 17/52 (2006.01) C08G 63/06 (2006.01) C08G 63/08 (2006.01) C08G 63/685 (2006.01) C08G 63/688 (2006.01) C08G 63/692 (2006.01) C08G 63/91 (2006.01) C09B 67/46 (2006.01) C09D 7/02 (2006.01) C09D 11/00 (2006.01) C09D 11/02 (2006.01) C09D 17/00 (2006.01) C09D 167/06 (2006.01)

Patent

CA 2406230

Basic and acid dispersants derived from branched alkyl aliphatic acids and alcohols and one or more hydroxy carboxylic acid or lactone to give a polyoxyalkylenecarbonyl chain (POAC) having a terminal carboxylic acid group (TPOAC acid) or terminal hydroxy group (TPOAC alcohol). Preferred basic dispersants are obtained by reaching one or more TPOAC acids with a polyamine or polyimine such as polyethyleneimine and preferred anionic dispersants are prepared by forming a phosphate ester of a TPOAC alcohol.

L'invention concerne des dispersants acides et basiques, dérivés d'acides et d'alcools aliphatiques d'alkyle ramifié ainsi que d'acide ou de lactone hydroxy-carboxylique pour donner une chaîne polyoxyalkylènecarbonyle (POAC), présentant un groupe d'acides carboxyliques terminaux (acide TPOAC) ou un groupe hydroxy terminal (alcool TPOAC). On obtient des dispersants basiques préférés, en réunissant un ou plusieurs acides TPOAC avec une polyamine ou polyimine, telle qu'une polyéthylèneimine, et on prépare des dispersants anioniques préférés, en produisant un ester phosphorique d'un alcool TPOAC.

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