Branched polyurethanes, formulations comprising them, and...

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C - Chemistry, Metallurgy

08

G

C08G 18/70 (2006.01) C08G 18/28 (2006.01) C08G 18/48 (2006.01) C08G 18/61 (2006.01) C08G 18/72 (2006.01) C08G 18/79 (2006.01) C09D 7/00 (2006.01) C09D 11/02 (2006.01)

Patent

CA 2413672

A) one or more aliphatic and/or aromatic isocyanates having a functionality of at least three with B) from 90.0 to 99.8 eq.% of one or more polyethers of structure RO(SO)w(BO)x(PO)y(EO)zH and C) from 0.2 to 10.0 eq.% of at least one of the compounds from the following group: a. polyethers of structure HO(SO)w'(BO)x'(PO)y'(EO)z'H b. polyether polydimethylsiloxane diols of structure HO(SO)w'(BO)x'(PO)y'(EO)z'Z-PDMS- Z(EO)z'(PO)y'(BO)x'(SO)w'OH c. polyester polydimethylsiloxane diols of structure H-(OC5H10CO-)y'-Z-PDMS-Z-(CO-C5H10O-)y'-H d. polydimethylsiloxane diols of structure HO-Y-PDMS-Y-OH e. polydimethylsiloxane diamines of structure R'NH-Y-PDMS-Y-HNR' f. polyether diamines of structure R'HN-(PO)y'(EO)z'-X-(EO)z'(PO)y'-NHR' in which R is a hydrocarbon radical of 1 to 50 carbon atoms which if desired is also substituted or functionalized, R' is a hydrocarbon radical of 1 to 8 carbon atoms which if desired is also substituted or functionalized, SO = styrene oxide, BO = butylene oxide, PO = propylene oxide, EO = ethylene oxide, PDMS = polydimethylsiloxane, w = 0 to 5, x = 0 to 5, y = 0 to 20, z = 50 to 200, w'= 0 to 5, x'= 0 to 5, y'= 0 to 10, z'= 1 to 49, Z = -C n H2n O- or -CH2-CH2-O-C n H2n O-, where n = 2 to 12; X = -C n H2n- or -C6H4-, where n = 2 to 12; Y = -C m H m-, in which m = 1 to 8.

A) Un ou plusieurs isocyanates aliphatiques et/ou aromatiques ayant une fonctionnalité d'au moins trois avec B) de 90,0 à 99,8 % équ. d'un ou de plusieurs polyéthers de structure RO(SO)w(BO)x(PO)y(EO)zH et C) de 0,2 à 10,0 % équ. d'au moins un des composés du groupe suivant : a. polyéthers de structure HO(SO)w'(BO)x'(PO)y'(EO)z'H, b. polyéther-polydiméthylsiloxane-diols de structure HO(SO)w'(BO)x'(PO)y'(EO)z'Z-PDMS-Z (EO)z'(PO)y'(BO)x'(SO)w'OH, c. polyester-polydiméthylsiloxane-diols de structure H-(OC5H10CO-)y'-Z-PDMS-Z-(CO-C5H10O-)y'-H, d. polydiméthylsiloxanediols de structure HO-Y-PDMS-Y-OH, e. polydiméthylsiloxanediamines de structure R'NH-Y-PDMS-Y-HNR', f. polyétherdiamines de structure R'HN-(PO)y'(EO)z'-X-(EO)z'(PO)y'-NHR' dans lesquels R est un radical hydrocarboné de 1 à 50 atomes de carbone qui, si on le souhaite, peut être substitué ou être fonctionnalisé, SO = oxyde de styrène, BO = oxyde de butylène, PO = oxyde de propylène, EO = oxyde d'éthylène, PDMS = polydiméthylsiloxane, w = 0 à 5, x = 0 à 5, y = 0 à 20, z = 50 à 200, w' = 0 à 5, x' = 0 à 5, y' = 0 à 10, z' = 1 à 49, Z = -CnH2nO- ou -CH2-CH2-O-CnH2nO-, dans lesquels n = 2 à 12; X = -CnH2n- ou -C6H4- , dans lesquels n = 2 à 12; Y = -CmHm-, dans lesquels m = 1 à 8.

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