US 6,211,321 B1Granted

Diene rubber

AssigneeNippon Zeon Co., Ltd.

InventorsYukio Takagishi, Masao Nakamura

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Abstract

This invention provides a diene rubber capable of yielding a vulcanized rubber having improved heat build-up, tensile strength and abrasion resistance, processes for preparing the same, and rubber compositions containing the same. The diene rubber is composed of 40 to 99.99% by weight of conjugated diene monomer units, 0 to 50% by weight of aromatic vinyl monomer units, and 0.01 to 20% by weight of vinyl monomer units containing a tertiary amino group which is at least partially quaternized with a hydrocarbon radical, and has a Mooney viscosity (ML1+4, 100° C.) of 10 to 200.

Claims24

Dependent claims

A diene rubber comprising 40 to 99.99% by weight of combined units of a conjugated diene monomer, 0 to 50% by weight of combined units of an aromatic vinyl monomer, and 0.01 to 20% by weight of combined units of other vinyl monomer comprising at least one of tertiary amino-containing vinyl monomer and halogen-containing vinyl monomer and wherein at least part of said combined other vinyl monomer is quaternized to form quaternized tertiary amino-containing vinyl monomer units, with the provisos that when said other vinyl monomer comprises combined tertiary amino-containing vinyl monomer units it is quaternized with a monohalogenated hydrocarbon and when said other vinyl monomer comprises combined halogen-containing vinyl monomer units it is quaternized with a tertiary amine, and having a Mooney viscosity ML1+4, 100° C.) of 10 to 200,

wherein the tertiary amino-containing vinyl monomer is a compound of the formula
CH2═CR11—A2—NR12R13
where R11 is a hydrogen atom or a lower alkyl group, R12 and R13 are each, independently, an alkyl group, an aryl group or an aralkyl group,
A2 is an alkylene group, an arylene group, an arylene-alkylene group, an alkylene-arylene group, or a linking group of the general formula —C(═O)—M—R14—, in which M is an oxy group or an NH group, and R14 is an alkylene group, an arylene group, an arylene-alkylene group or an alkylene-arylene group, and
R12 or R13 may be combined with A2 to form a heterocyclic ring,
and wherein the combined units of the quaternized tertiary amino-containing vinyl monomer have the formula
where R1 is a hydrogen atom or a lower alkyl group, R2, R3 and R4, are each, independently, an alkyl group, an aryl group or an aralkyl group,
A1 is an alkylene group, an arylene group, an arylene-alkylene group, an alkylene-arylene group, or a linking group of the general formula —C(═O)—M—R5—, in which M is an oxy group or an NH group, and R5 is an alkylene group, an arylene group, an arylene-alkylene group or an alkylene-arylene group, and
R2 or R3 may be combined with A1 to form a heterocyclic ring, and X1 is a halogen atom.

6 more elements

Dependencies are inferred from the claim text.

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Abstract

wherein the tertiary amino-containing vinyl monomer is a compound of the formula
CH2═CR11—A2—NR12R13
where R11 is a hydrogen atom or a lower alkyl group, R12 and R13 are each, independently, an alkyl group, an aryl group or an aralkyl group,
A2 is an alkylene group, an arylene group, an arylene-alkylene group, an alkylene-arylene group, or a linking group of the general formula —C(═O)—M—R14—, in which M is an oxy group or an NH group, and R14 is an alkylene group, an arylene group, an arylene-alkylene group or an alkylene-arylene group, and
R12 or R13 may be combined with A2 to form a heterocyclic ring,
and wherein the combined units of the quaternized tertiary amino-containing vinyl monomer have the formula
where R1 is a hydrogen atom or a lower alkyl group, R2, R3 and R4, are each, independently, an alkyl group, an aryl group or an aralkyl group,
A1 is an alkylene group, an arylene group, an arylene-alkylene group, an alkylene-arylene group, or a linking group of the general formula —C(═O)—M—R5—, in which M is an oxy group or an NH group, and R5 is an alkylene group, an arylene group, an arylene-alkylene group or an alkylene-arylene group, and
R2 or R3 may be combined with A1 to form a heterocyclic ring, and X1 is a halogen atom.

6 more elements