Patent ID: 7309746
Filing Date: 2007-12-18
Classification: C08F

Abstract:
1. A silane-containing polymer prepared by free-radical addition polymerization of one or more ethylenically unsaturated monomers in the presence of silane-containing aldehydes, silane-containing hemiacetals, silane-containing acetals, or mixtures thereof, wherein the silane-containing aldehydes, hemiacetals, and acetals are selected from the group consisting of compounds of the structural formulae where R is identical or different at each occurrence and is halogen: an unbranched or branched, saturated or unsaturated, optionally substituted alkyl or alkoxy radical having 1 to 12 carbon atoms; an acyl radical having 2 to 12 carbon atoms; or an optionally substituted aryl or aryloxy radical having 3 to 20 carbon atoms, R optionally interrupted by one or more non-adjacent heteroatoms selected from the group consisting of N, O and S, and the aryl radical or the aryl group of the aryloxy radical optionally containing one or more heteroatoms selected from the group consisting of N, O and S, and R Ar is an aromatic group, optionally containing one or more heteroatoms selected from the group consisting of N, O and S, and wherein the silane-containing aldehyde, silane-containing hemiacetal, or silane-containing acetal is employed as a chain regulator in an amount of 0.0001 to 5.0% by weight based on the total weight of all monomers, and wherein the free radical polymerization is initiated by a non-redox free radical initiator, or when the initiator is a redox initiator, the oxidizing agent is selected from the group consisting of sodium, potassium, and ammonium salts of peroxodisulfuric acid, hydrogen peroxide, t-butyl peroxide, potassium peroxodiphosphate, t-butyl peroxopivalate, cumene hydroperoxide, isopropylbenzene monohydroperoxide, azobisisobutyronitrile, dicetyl peroxydicarbonate, dicyclohexylperoxydicarbonate, dibenzoyl peroxide, t-butyl perneodecanoate, t-butyl per-2-ethylhexanoate, t-butylperipalate, and mixtures thereof.