Patent ID: 7498387
Filing Date: 2009-03-03
Classification: C08C,C08F,C08L,C09J

Abstract:
1. A filler-containing modified polymer composition comprising: 100 parts by weight of a first-order modified, hydrogenated polymer (A-1), 0.5 to 300 parts by weight of a reinforcing filler (B), and 0.01 to 20 parts by weight of a second-order modifier (C) having a functional group which is reactive to a functional group of a modifier group of said first-order modified, hydrogenated polymer (A-1), wherein said second-order modifier (C) is at least one member selected from the group consisting of a functional monomer and a functional oligomer, wherein said first-order modified, hydrogenated polymer (A-1) comprises: (1) a hydrogenated polymer obtained by hydrogenating at least one unhydrogenated polymer selected from the group consisting of (1-A) a polymer comprising conjugated diene monomer units and (1-B) a copolymer comprising conjugated diene monomer units and vinyl aromatic hydrocarbon monomer units, said copolymer (1-B) having no or at least one polymer block (H) of said vinyl aromatic hydrocarbon monomer units, and (2) a functional group-containing first-order modifier group bonded to said hydrogenated polymer (1), said first-order modified, hydrogenated polymer (A-1) having the following characteristics (i) to (iv): (i) a content of said vinyl aromatic hydrocarbon monomer units of from 0 to 60 % by weight, based on the weight of said hydrogenated polymer, (ii) a vinyl aromatic hydrocarbon block ratio of from 0 to less than 50 % by weight, wherein said vinyl aromatic hydrocarbon block ratio is defined as the percent by weight of the vinyl aromatic hydrocarbon monomer units contained in said at least one polymer block (H) of said vinyl aromatic hydrocarbon monomer units, based on the total weight of vinyl aromatic hydrocarbon monomer units contained in said copolymer (1-B), (iii) a weight average molecular weight of from 20,000 to 2,000,000, and (iv) a hydrogenation ratio of more than 70 %, as measured with respect to the double bonds in said conjugated diene monomer units, wherein said functional group containing first-order modifier group (2) comprises at least one functional group represented by a formula selected from the group consisting of the following formulae (a) to (m): wherein, in the formulae (a) to (m): N represents a nitrogen atom, Si represents a silicon atom, O represents an oxygen atom, C represents a carbon atom, and H represents a hydrogen atom, each of R each R each R wherein each of R