申请人:Wang Shanger
公开号:US20140135408A1
公开(公告)日:2014-05-15
Silicone containing reactive monomers with hydrophilic end-groups of formula I useful in the manufacture of biocompatible medical devices are disclosed, wherein R
1
is H or CH
3
, a is 0 or 1, p is an integer from 1 to 6, q is an integer from 1 to 3 and for each q, the end groups R
51
, R
52
, R
53
are independently an alkyl, alkyl ether, trimethylsiloxy group, or a substituted or non-substituted aromatic group and at least one of them has a hydrophilic group attached, preferably to the terminal end of R
51
, R
52
, R
53
, X is O or NR
54
, where R
54
is H or a monovalent alkyl group with 1 to 4 carbons, n is an integer from 1 to 100, R
2
and R
3
are independently an alkyl, alkyl ether, or a substituted or non-substituted aromatic group, preferred R
2
and R
3
include methyl, ethyl, and phenyl, L is a divalent linker comprising substituted and unsubstituted alkylene groups having 1-14 carbon atoms, which may be straight or branched, substituted and unsubstituted alkoxy groups having 2-12 carbons, polyethers, oxazolines, and substituted and unsubstituted heterocyclic groups. Suitable substituents include aryl, amine, ether, amide, hydroxyl groups, combinations thereof and the like. In another embodiment, L comprises a straight or branched alkylene group having 2 to 12 carbons. The reactive monomers combine oxygen permeable silicone components with hydrophilic terminal groups capable of reaching to the device-bio-logic interface thus providing bulk and surface characteristics useful in the manufacture of medical devices, particularly ophthalmic devices.