GB493552A - Improvements in or relating to rubber compositions and methods of forming the same - Google Patents

Improvements in or relating to rubber compositions and methods of forming the same

Info

Publication number
GB493552A
GB493552A GB10408/37A GB1040837A GB493552A GB 493552 A GB493552 A GB 493552A GB 10408/37 A GB10408/37 A GB 10408/37A GB 1040837 A GB1040837 A GB 1040837A GB 493552 A GB493552 A GB 493552A
Authority
GB
United Kingdom
Prior art keywords
composition
carbon black
rubber
vulcanizing
treated
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
GB10408/37A
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.)
Firestone Tire and Rubber Co Ltd
Bridgestone Firestone Inc
Original Assignee
Firestone Tire and Rubber Co Ltd
Firestone Tire and Rubber Co
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 Firestone Tire and Rubber Co Ltd, Firestone Tire and Rubber Co filed Critical Firestone Tire and Rubber Co Ltd
Publication of GB493552A publication Critical patent/GB493552A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/20—Compounding polymers with additives, e.g. colouring
    • C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
    • C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2307/00—Characterised by the use of natural rubber
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2407/00—Characterised by the use of natural rubber

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Tires In General (AREA)

Abstract

A composition containing rubber and a reinforcing pigment such as carbon black or zinc oxide and it may be other ingredients but no vulcanizing agent, is heated, preferably under static conditions and to substantially a vulcanizing temperature, e.g. 260 to 360 DEG F., for from six to two hours in an inert gas or in vacuo. During the heating the carbon black migrates and collects in floccules forming a reticulated network or chain structure interspersed with rubber containing a lower proportion of carbon black. The composition may then be mixed with further rubber and/or compounding ingredients, any such admixed composition preferably containing compounding ingredients in the same proportions as in that of the treated batch. The treated batch, with or without this further admixture may then be milled with vulcanizing agents and vulcanized. The resulting product compared with a non-treated composition, is softer, of the same tensile strength, of higher wearing or abrasion resisting quality, with lower hysteresis loss, and consequently a lower running temperature when flexed, as in a tyre tread for the manufacture of which it may be used.
GB10408/37A 1936-12-10 1937-04-12 Improvements in or relating to rubber compositions and methods of forming the same Expired GB493552A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US493552XA 1936-12-10 1936-12-10

Publications (1)

Publication Number Publication Date
GB493552A true GB493552A (en) 1938-10-11

Family

ID=21959370

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10408/37A Expired GB493552A (en) 1936-12-10 1937-04-12 Improvements in or relating to rubber compositions and methods of forming the same

Country Status (1)

Country Link
GB (1) GB493552A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1024658B (en) * 1954-10-08 1958-02-20 Alpha Molykote Corp Process for the subsequent installation of chemically or thermally influenceable substances in lubricating greases
DE1105604B (en) * 1955-05-02 1961-04-27 Exxon Research Engineering Co Process for the pretreatment of vulcanizable, filler-containing, synthetic rubber

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1024658B (en) * 1954-10-08 1958-02-20 Alpha Molykote Corp Process for the subsequent installation of chemically or thermally influenceable substances in lubricating greases
DE1105604B (en) * 1955-05-02 1961-04-27 Exxon Research Engineering Co Process for the pretreatment of vulcanizable, filler-containing, synthetic rubber

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