Rubber tyre compound production method

Patent metadata

Field	Value
Publication number	US-2016168339-A1
Application number	US-201414908229-A
Country	US
Kind code	A1
Filing date	Jul 29, 2014
Priority date	Jul 29, 2013
Publication date	Jun 16, 2016
Grant date	—

Abstract

A rubber tyre compound production method having a mixing step, in which at least one cross-linking, unsaturated-chain polymer base, silica, a silane bonding agent, and 0.6 to 5 phr of a chemical of general formula (I) are mixed with one another; and a following mixing step, in which at least stearic acid and a curing system are added to and mixed with the compound being prepared;

wherein:
R 1 , R 2 and R 3 , which are the same or different, are chosen from the group consisting of: hydrogen and groups in the alkane, alkene, cycloalkane, heterocyclic compound, aromatic compound, amine, imine, amide, sulphide, alcohol, aldehyde, ketone, ether, ester, nitrile, nitro-derivative, and isocyanate families.

First claim

1 - 10 . (canceled)

11 ) A rubber tyre compound production method, comprising a mixing step, in which at least one cross-linking, unsaturated-chain polymer base, silica, a silane bonding agent, and 0.6 to less than 5 phr of a chemical of general formula (I) are mixed with one another; and a following mixing step, in which at least stearic acid and a curing system are added to and mixed with the compound being prepared;

wherein:
R 1 , R 2 and R 3 , which are the same or different, are chosen from the group consisting of: hydrogen and groups in the alkane, alkene, cycloalkane, heterocyclic compound, aromatic compound, amine, imine, amide, sulphide, alcohol, aldehyde, ketone, ether, ester, nitrile, nitro-derivative, and isocyanate families.

12 ) A rubber tyre compound production method as claimed in claim 11 , wherein R 1 , R 2 and R 3 , which are the same or different, are chosen from the group consisting of: H, CH 3 , CH 3 CH 2 , CH 3 CH 2 CH 2 , CH 3 CH 2 CH 2 CH 2 , CH 2 CHCHCH, CH 3 CH 3 CH, C 6 H 5 , C 6 H 11 , C 10 H 7 , CH 3 C 6 H 4 CH 3 , CH 3 CH 2 C 6 H 5 , C 6 H 4 OH, C 4 H 5 O 2 , CH 3 C 6 H 4 OCH 3 , CH 3 OC 6 H 4 OCH 3 , NH 2 , C 6 H 4 NH 2 , C 4 H 7 NH, C 6 H 10 NH 2 , C(CH 3 ) 2 OH, C 5 H 9 NH, NH 2 CH 2 C 7 H 12 , CHCHOCH 2 C 6 H 5 , C 6 H 10 OH, CH 2 C 6 H 3 C 3 H 2 NH, SO 3 C 6 H 4 CH 3 , C 6 H 4 NO 2 , C 6 H 11 , C 10 H 7 , C 6 H 4 OH, CH 3 OC 6 H 4 , (CH 3 ) 3 CC 6 H 4 , CH 3 C 6 H 3 NO 2 , (CH 2 ) 3 Cl, CH 3 X, CH 3 CH 2 X, CH 3 CH 2 CH 2 X, CH 3 CH 2 CH 2 CH 2 X, C 6 H 5 X, C 6 H 5 CH 2 X, (CH 3 ) 3 CX, C 4 H 3 X, CH 2 CHCH 2 X, C 6 H 4 SO 3 CH 3 X, C 6 H 4 NO 2 X, C 6 H 11 X, C 11 H 7 X, OHCH 2 CH 2 X, OHC 4 H 4 X, CH 3 OC 6 H 4 X, (CH 3 ) 3 CC 6 H 4 X, CH 2 C 6 H 4 CHX, NH 2 C 6 H 10 X, OHC(CH 3 ) 2 X, NHC 5 H 9 X, NHC 5 H 9 NC 5 H 9 X, NH 2 CH 2 C 7 H 12 X, OHC 6 H 10 X, NHCH 2 C 6 H 3 C 3 H 2 X, wherein X may be O or S.

13 ) A rubber tyre compound production method as claimed in claim 12 , wherein R 1 and R 2 are H, and R 3 is NH 2 .

14 ) A rubber tyre compound production method as claimed in claim 11 , wherein 20 phr or more of silica is used in the first mixing step.

15 ) A rubber tyre compound production method as claimed in claim 11 , wherein the polymer base is chosen from the group comprising styrene-butadiene rubber, butadiene rubber, natural rubber, or mixtures thereof.

16 ) A rubber tyre compound production method as claimed in claim 11 , wherein 1 to 6 phr of stearic acid is used in the final mixing step.

17 ) A tyre portion compound produced using the method as claimed in claim 11 .

18 ) A tread made from the compound as claimed in claim 17 .

19 ) A tyre, at least one part of which is made from the compound as claimed in claim 17 .

Assignees

• Grenci Valeria
• Agoretti Pasquale
• Bridgestone Corp

Inventors

• Grenci Valeria
• Agoretti Pasquale

Classifications

• C08K3/04

  Carbon · CPC title

• C08K3/36

  Silica · CPC title

• C08L9/00

  Compositions of homopolymers or copolymers of conjugated diene hydrocarbons · CPC title

• C08J2309/00

  Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons · CPC title

• C08K5/21

  Urea; Derivatives thereof, e.g. biuret · CPC title