| 摘要 |
<p>ORGANOSILOXANE-OXYALKYLENE COPOLYMERS Organosiloxane-oxyalkylene copolymers in which at least one silicon atom of an organosiloxane unit has attached thereto a group -X(OR)nO?iR'(OR")2-a in which X is a divalent hydrocarbon group, R is an alkylene group, n is an integer of at least 2, Z is an organic substituent containing an epoxy group, R' is lower alkyl, vinyl or phenyl, R" is alkyl or alkoxyalkyl and a is 0 or 1, at least 40 percent of the total substituents in the copolymer being methyl. The copolymers are film forming and may be applied to contlnuous or porous substrates from aqueous or non-aqueous solutions.</p> |
