GB946056A - Improvements relating to tyres - Google Patents

Improvements relating to tyres

Info

Publication number
GB946056A
GB946056A GB564962A GB564962A GB946056A GB 946056 A GB946056 A GB 946056A GB 564962 A GB564962 A GB 564962A GB 564962 A GB564962 A GB 564962A GB 946056 A GB946056 A GB 946056A
Authority
GB
United Kingdom
Prior art keywords
parts
copolymer
weight
oil
extended
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB564962A
Inventor
Douglas Bulgin
George Douglas Hubbard
Evelyn William Madge
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dunlop Rubber Co Ltd
Original Assignee
Dunlop Rubber Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to NL288895D priority Critical patent/NL288895A/xx
Priority to BE628380D priority patent/BE628380A/xx
Priority to NL254813D priority patent/NL254813A/xx
Priority to NL121125D priority patent/NL121125C/xx
Priority to GB2768359A priority patent/GB929302A/en
Priority to FR835867A priority patent/FR1270767A/en
Priority to SE7775/60A priority patent/SE301916B/xx
Priority to GB17061A priority patent/GB947321A/en
Application filed by Dunlop Rubber Co Ltd filed Critical Dunlop Rubber Co Ltd
Priority to GB564962A priority patent/GB946056A/en
Priority to ES284761A priority patent/ES284761A1/en
Priority to SE1200/63A priority patent/SE321345B/xx
Priority to DE19631545516 priority patent/DE1545516A1/en
Priority to FR924691A priority patent/FR1350236A/en
Publication of GB946056A publication Critical patent/GB946056A/en
Priority to MY1964106A priority patent/MY6400106A/en
Priority to US467843A priority patent/US3307605A/en
Priority to MY196653A priority patent/MY6600053A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
    • C08L9/06—Copolymers with styrene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
    • B60C1/0016—Compositions of the tread
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/0008—Tyre tread bands; Tread patterns; Anti-skid inserts characterised by the tread rubber
    • B60C2011/0016—Physical properties or dimensions

Abstract

A tyre tread is formed from a vulcanised composition of a butadiene-styrene copolymer having a styrene content of 30% to 55% by weight, and a sufficient quantity of hydrocarbon oil, up to 50 parts per 100 parts of copolymer by weight, incorporated before coagulation of the copolymer latex, to give a second order transition temperature of the oil-extended copolymer lower than -35 DEG C. and preferably within the range -35 DEG C. to -48 DEG C. The preferred compositions have a styrene content of 36\sB2% and incorporate 30\sB10 parts of hydrocarbon oil per 100 parts by weight of the copolymer. The uncompounded copolymer preferably has a Mooney viscosity at 120 DEG C. of 30 to 65 and may be compounded with between 5% and 10% by weight of additional oil, with or without tar, and 45% to 75% by weight of carbon black, all referred to the weight of the extended copolymer. A particular example, using a 64:36 by weight butadiene styrene copolymer extended with 33 parts of hydrocarbon oil per 100 parts of copolymer, is compounded as follows:- .Copolymer (including oil).100.00 parts .Sulphur.1.75 parts .Mercaptobenzothiazole.1.0 parts .Stearic acid.1.0 parts .Zinc Oxide.1.0 parts .Antioxidant ("Nonox HFN").0.75 parts .Antioxidant ("Santoflex AW").0.75 parts .Mineral oil.7.0 parts .High abrasion furnace black.50.0 parts ("Nonox" and "Santoflex" are Registered Trade Marks) In a further example, half the mineral oil is replaced by pine tar, the high abrasion furnace black is replaced by 60 parts of SAF black and only 1.0 part of sulphur is used.
GB564962A 1959-08-13 1962-02-14 Improvements relating to tyres Expired GB946056A (en)

Priority Applications (16)

Application Number Priority Date Filing Date Title
NL288895D NL288895A (en) 1959-08-13
BE628380D BE628380A (en) 1959-08-13
NL254813D NL254813A (en) 1959-08-13
NL121125D NL121125C (en) 1959-08-13
GB2768359A GB929302A (en) 1962-02-14 1959-08-13 Improvements in or relating to tyres for motor vehicles
SE7775/60A SE301916B (en) 1959-08-13 1960-08-12
FR835867A FR1270767A (en) 1959-08-13 1960-08-12 Improvements to tires for motor vehicles
GB17061A GB947321A (en) 1959-08-13 1961-01-03 Improvements relating to tyres for motor vehicles
GB564962A GB946056A (en) 1962-02-14 1962-02-14 Improvements relating to tyres
ES284761A ES284761A1 (en) 1962-02-14 1963-02-01 Improvements introduced in the manufacture of tires for road vehicles (Machine-translation by Google Translate, not legally binding)
SE1200/63A SE321345B (en) 1959-08-13 1963-02-04
DE19631545516 DE1545516A1 (en) 1959-08-13 1963-02-07 car tire
FR924691A FR1350236A (en) 1959-08-13 1963-02-13 Butadiene-styrene rubber-based composition for pneumatic tires
MY1964106A MY6400106A (en) 1959-08-13 1964-12-31 Improvements in or relating to tyres for motor vehicles
US467843A US3307605A (en) 1959-08-13 1965-06-29 Tires for motor vehicles comprising a butadiene-styrene copolymer having a high bound styrene content
MY196653A MY6600053A (en) 1959-08-13 1966-12-31 Improvements relating to tyres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB564962A GB946056A (en) 1962-02-14 1962-02-14 Improvements relating to tyres

Publications (1)

Publication Number Publication Date
GB946056A true GB946056A (en) 1964-01-08

Family

ID=9800039

Family Applications (2)

Application Number Title Priority Date Filing Date
GB2768359A Expired GB929302A (en) 1959-08-13 1959-08-13 Improvements in or relating to tyres for motor vehicles
GB564962A Expired GB946056A (en) 1959-08-13 1962-02-14 Improvements relating to tyres

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB2768359A Expired GB929302A (en) 1959-08-13 1959-08-13 Improvements in or relating to tyres for motor vehicles

Country Status (2)

Country Link
ES (1) ES284761A1 (en)
GB (2) GB929302A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1061017A (en) * 1963-11-19 1967-03-08 Dunlop Rubber Co Improvements relating to tyres
FR3023296B1 (en) * 2014-07-01 2016-07-22 Michelin & Cie RUBBER COMPOSITION COMPRISING AN ELASTOMER CONTAINING METHACRYLATE UNITS

Also Published As

Publication number Publication date
ES284761A1 (en) 1963-06-16
GB929302A (en) 1963-06-19

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