GB992077A - Improvements in or relating to rubber compounds - Google Patents

Improvements in or relating to rubber compounds

Info

Publication number
GB992077A
GB992077A GB274964A GB274964A GB992077A GB 992077 A GB992077 A GB 992077A GB 274964 A GB274964 A GB 274964A GB 274964 A GB274964 A GB 274964A GB 992077 A GB992077 A GB 992077A
Authority
GB
United Kingdom
Prior art keywords
weight
parts
styrene
rubber compound
copolymer
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
GB274964A
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.)
Pirelli and C SpA
Original Assignee
Pirelli SpA
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
Application filed by Pirelli SpA filed Critical Pirelli SpA
Publication of GB992077A publication Critical patent/GB992077A/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
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

A rubber compound comprises a mixture of (1) from 10 to 90 parts by weight of a polybutadiene containing monomeric units of cis-1,4-, trans-1,4- and 1,2-addition, in which the cis-1,4-addition units form at least 30% by weight of the polymer and (2) from 90 to 10 parts by weight of a butadiene-styrene copolymer extended with mineral oil containing butadiene and styrene in a ratio by weight of between 13:7 and 2:3, and the oil being present in an amount of at least 15% by weight of the copolymer, the total of the parts by weight of the elastomeric components in the mixture being 100. From 10 to 55 parts by weight of a further butadienestyrene copolymer containing butadiene and styrene in a ratio by weight of between 49:1 and 13:7 may be included in the rubber compound. The rubber compound is mixed with the usual vulcanizing agents, fillers, plasticizers and anti-oxidants and is fabricated into motor vehicle tyres.
GB274964A 1963-02-16 1964-01-22 Improvements in or relating to rubber compounds Expired GB992077A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT332763 1963-02-16
IT332863 1963-02-16

Publications (1)

Publication Number Publication Date
GB992077A true GB992077A (en) 1965-05-12

Family

ID=26325338

Family Applications (1)

Application Number Title Priority Date Filing Date
GB274964A Expired GB992077A (en) 1963-02-16 1964-01-22 Improvements in or relating to rubber compounds

Country Status (1)

Country Link
GB (1) GB992077A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7530378B2 (en) * 2005-12-28 2009-05-12 The Goodyear Tire & Rubber Company Speckled tire treads

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7530378B2 (en) * 2005-12-28 2009-05-12 The Goodyear Tire & Rubber Company Speckled tire treads

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