Patent ID: 6329489
Filing Date: 2001-12-11
Classification: C07F,C08G,C09D

Abstract:
A process for making a reactive silane oligomer, said process comprising:contacting one or more unsymmetrical difunctional silane monomers with water, with one or more diol monomers, or with a combination thereof, wherein:said diol monomer is:R.sup.1 --(OH).sub.2,wherein R.sup.1 is selected from the group consisting of:a) C.sub.2 to C.sub.20 alkylene, cycloaliphatic rings or aromatic rings, each optionally substituted with at least one member selected from the group consisting of O, N, P and S;b) two or more cycloaliphatic or aromatic rings connected to each other through a covalent bond, or through an alkylene group of 1 to 5 carbon atoms, or through a heteroatom, or fused together to share two or more carbon atoms, each optionally substituted with at least one member selected from the group consisting of O, N, P and S; andc) a linear polyester, branched polyester, a combination of said linear and said branched polyesters, polyacrylate, polyolefin, polyether, polycarbonate, polyurethane, or polyamide, each having a GPC weight average molecular weight in the range of from about 200 and 10,000; andsaid difunctional silane monomer is: ##STR10##wherein Cp is a primary carbon atom, Cs is a secondary carbon atom andR.sup.2 is selected from the group consisting of:a) C.sub.3 to C.sub.20 alkylene, C.sub.1 to C.sub.10 alkyl substituted cycloaliphatic rings and C.sub.1 to C.sub.10 alkyl substituted aromatic rings, each optionally substituted with at least one member selected from the group consisting of O, N, P and S;b) C.sub.1 to C.sub.10 alkyl substituted two or more cycloaliphatic rings, or C.sub.1 to C.sub.10 alkyl substituted two or more aromatic rings connected to each other through a covalent bond, or through an alkylene group of 1 to 5 carbon atoms, or through a heteroatom, or fused together to share two or more carbon atoms, each optionally substituted with at least one member selected from the group consisting of O, N, P and S; andc) a combination of (a) and (b);R.sub.3, R.sup.4 and R.sup.5 each is independently selected from the group consisting of:hydrogen, C.sub.1 to C.sub.20 alkyl, C.sub.1 to C.sub.10 alkyl substituted cycloaliphatic rings or C.sub.1 to C.sub.10 alkyl substituted aromatic rings, each optionally substituted with at least one member selected from the group consisting of O, N, P and S;X.sup.P and X.sup.S being independently selected from the group consisting of alkoxy containing 1 to 20 carbon atoms, acyloxy containing 1 to 20 carbon atoms, phenoxy, halogen, amine, amide, urea, imidazole, carbamate, ketoximine, oxazolidinone, and a combination thereof; andY.sup.P and Y.sup.S being independently selected from the group consisting of alkyl containing 1 to 12 carbon atoms, alkoxy containing 1 to 20 carbon atoms, acyloxy containing 1 to 20 carbon atoms, phenoxy, halogen, amine, amide, urea, imidazole, carbamate, oxazolidinone, and a combination thereof;for producing said reactive silane oligomer having a GPC weight average molecular weight of less than 10,000 and having a polydispersity of less than 3.