Patent ID: 8071676
Filing Date: 2011-12-06
Classification: C08C,C08F,C08L,C09J

Abstract:
1. A second-order modified polymer comprising: (β) a base polymer, and (δ) a functional group-containing modifier group bonded to said base polymer (β), wherein said second-order modified polymer is obtained by reacting a second-order modifier with a first-order modified polymer comprising (β) a base polymer and (γ) a functional group-containing first-order modifier group bonded to said base polymer (β) to thereby form (δ) a functional group-containing modifier group, wherein said second-order modifier has a functional group which is reactive to said functional group of said first-order modifier group (γ) of said first-order modified polymer, and wherein said second-order modifier is used in an amount of 0.3 to 10 moles, relative to one equivalent of the functional group of said first-order modifier group (γ) of said first-order modified polymer, said second-order modifier being at least one member selected from the group consisting of a functional monomer and a functional oligomer, wherein said base polymer (β) of said first-order modified polymer is unhydrogenated or at least partially hydrogenated and is at least one member selected from the group consisting of the following polymers (β-1) to (β-3): (β-1) a conjugated diene polymer comprising conjugated diene monomer units, (β-2) a copolymer comprising conjugated diene monomer units and vinyl aromatic hydrocarbon monomer units, said copolymer having no polymer block (H) of said vinyl aromatic hydrocarbon monomer units, wherein said copolymer has a vinyl aromatic hydrocarbon block ratio of 0% by weight, said vinyl aromatic hydrocarbon block ratio being 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 as in the unhydrogenated state, and (β-3) a vinyl aromatic hydrocarbon polymer comprising vinyl aromatic hydrocarbon monomer units, and wherein said functional group-containing first-order modifier group (γ) of said first-order modified polymer 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