SILOXANE COPOLYMERS AND METHODS FOR PRODUCTION THE

专利名称：SILOXANE COPOLYMERS AND METHODS

FOR PRODUCTION THEREOF

发明人：MESSNER, MICHAEL,HOFFMANN,

SABINE,MOLDENHAUER, JENS-PETER

申请号：EP09768049.0申请日：20091208公开号：EP2356171A1公开日：20110817

摘要：A description if given of novel siloxane copolymers producible by (a) reacting ina first step organopolysiloxanes (1) which comprise per molecule at least one Si-boundhydrogen atom with substantially linear oligomeric or polymeric compounds (2) of thegeneral formula R1-(A-CnH2n) m-A1-H (I), wherein R1 is a monovalent substituted orunsubstituted hydrocarbon moiety to which Si-H groups can be added in a hydrosilylationreaction, A is a divalent, polar organic moiety selected from the group -O-, -C(O)-O-, -O-C(O)-, -O-C(O)-O-, -C(O)- NH-, -NH-C(O)-, urethane moiety and urea moiety, A1 is adivalent, polar organic moiety selected from the group -O-, -NH- and -NR'- (wherein R' isa monovalent hydrocarbon moiety having 1 to 18 carbon atoms), n is an integer from 1 to20 and m is O or a positive integer, (b) reacting in a second step the resultant H-A1group-bearing intermediates (4) with organic compounds (5) which comprise permolecule at least two isocyanate groups, wherein the reaction takes place in thepresence of further organic compounds (6) and (7) which are reactive toward isocyanategroups, with the proviso that the compounds (6) contain at least one tertiary aminegroup and that the compounds (7) are those which can be eliminated again from the

siloxane copolymer in a temperature range from 50°C to 250°C, wherein free isocyanategroups are again formed in the siloxane copolymer, and (c) partially or completelyquaternizing in a third step the amine-containing intermediates (8) from step (b) with analkylating agent (9).

申请人：WACKER CHEMIE AG

地址：Hanns-Seidel-Platz 4 81737 München DE

国籍：DE

代理机构：Deffner-Lehner, Maria

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