Block, non-(ab)n silicone polyalkyleneoxide copolymers with...

Details Block, non-(ab)n silicone polyalkyleneoxide copolymers with... Block, non-(ab)n silicone polyalkyleneoxide copolymers with...

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D06M 15/643 (2006.01) A61K 8/90 (2006.01) A61Q 5/00 (2006.01) A61Q 5/02 (2006.01) A61Q 19/00 (2006.01) C08G 77/46 (2006.01) D06M 15/53 (2006.01) D06M 15/647 (2006.01)

Patent

CA 2470556

A composition is disclosed that comprises non-hydrolyzable, block, non-(AB)n type copolymers comprising units of the formula {XR2[(SiO(R1)2]xSi(R1)2R2X}, units of the formula {YO(CaH2aO)bY}, and linking groups -NR3-, wherein R1 is alkyl, R2 is a divalent organic moiety, X and Y are independently selected divalent organic groups formed by the ring opening of an epoxide, R3 is selected from the group consisting of alkyl, aryl, aralkyl, oxygen-containing alkyl, oxygen-containing aryl, and oxygen-containing aralkyl, a = 2 to 4, b = 2 to 100, and x = 1 to 500.

L'invention concerne une composition comprenant des copolymères en bloc, non hydrolysables, non-(AB)¿n?, étant constitués d'unités de formule {XR?2¿[(SiO(R?1¿)¿2?]¿x?Si(R?1¿)¿2?R?2¿X}, d'unités de formule {YO(C¿a?H¿2a?O)¿b?Y} et de groupes de liaison -NR?3¿-, R?1¿ étant alkyle, R?2¿ signifiant une fraction organique divalente, X et Y étant indépendamment sélectionnés groupes organiques divalents formés par l'ouverture de cycle d'un époxyde, R?3¿ étant sélectionné dans le groupe constitué par alkyle, aryle, aralkyle, alkyle contenant de l'oxygène, aryle contenant de l'oxygène et aralkyle contenant de l'oxygène, a = 2 à 4, b = 2 à 100 et x = 1 à 500.

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