MARK D. LEATHERMAN,George A. Policello,Wenqing N. Peng,Liping Zheng,Roland Wagner,Suresh K. Rajaraman,Zijun Xia
申请号：
US13251667
公开号：
US20120142535A1
申请日:
2011.10.03
申请国别(地区):
US
年份:
2012
代理人:
摘要：
The present invention provides for a composition comprising a siloxane having the formula:M1DM2whereinM1=(R1)(R2)(R3)SiO1/2M2=(R4)(R5)(R6)SiO1/2 andD=(R7)(Z)SiO2/2where R1, R2, R3, R4, R5, R6 and R7 are each independently selected from the group consisting of 1 to 4 carbon monovalent hydrocarbon radicals, aryl, and a hydrocarbon group of 4 to 9 carbons containing an aryl group Z is a pendant hydrophilic ionic group selected from the group consisting of R8—RA, R9-RC, and R10—RZ RA being an anionic substituent, RC a cationic substituent or RZ a zwitterionic substituent on the D group wherein said siloxane has an enhanced resistance to hydrolysis at a pH below 6 or a pH above 7.5.
