Silicones which contain lateral peripheral vinyl ether groups having aliphatic or aromatic urethanes

Claim 1

A siloxane copolymer having a molecular weight from 5,000 to 100,000 and represented by formula I: (R.sub.a).sub.3 SiO(V).sub.v --(W).sub.w --(Y).sub.y --(Z).sub.z --Si(R.sub.a).sub.3 where V=--SiR a R b O--; W=--SiR' a (R c --R d --OCH═CH 2 ) O--; Y=--SiR a R g O--; Z=--R a R g SiC n H 2n R' f C n H 2n SiR a R g O--with n=2, 3 or 4; v, y, z are identical or different numbers, but they cannot be simultaneously zero; w is always different from zero; and the ratio v+y+z/w is between 1 and 100; the groups R a represent, independently of each other, a radical selected from the group consisting of CH 3 , C 2 H 5 , n-C 3 H 7 , n-C 4 H 10 radicals, and phenyl, with not more than one phenyl radical being attached to a given silicon atom; R b =R a ; R' a =R a , --OCH 3 or OC 2 H 5 R c =C 2 H 4 --, --C 3 H 6 --, --C 2 H 4 --S--C 2 H 4 --, or --C 3 H 6 --S--C 2 H 4 --; R d =--OCONHR e NHCO--, --NH--COOC 2 H 4 --, or --NHCOOC 3 H 6 --; R e =--C 6 H 3 (CH 3 )--, --C 6 H 4 CH 2 C 6 H 4 --, --(CH 2 ) 6 --, --C 6 H 10 --CH 2 --C 6 H 10 --, or --CH 2 --[(CH 3 ) 3 C 6 H 7 ]--; R g =--C k H 2k --R f where k=2, 3 or 4; R f is a perfluoroalkyl group with 1 to 12 carbon atoms, or a monovalent radical of an oligomer of oxetanes or fluorinated oxiranes; R' f is a perfluoroalkylene group with 4 to 10 carbon atoms, or an alpha,omega-fluoroalkenyl group formed by telomerization of tetrafluoroethylene, or a telechelic divalent radical of an oligomer derived from fluorinated oxetanes or oxiranes, or an m-phenylenedi(hexafluoroisopropoxy) radical; and the units V, W, Y and Z can be arranged randomly, in order or alternated along the polymer chain.