GB584257A - Improvements in or relating to the curing of rubber and rubber substitutes - Google Patents

Improvements in or relating to the curing of rubber and rubber substitutes

Info

Publication number
GB584257A
GB584257A GB1608443A GB1608443A GB584257A GB 584257 A GB584257 A GB 584257A GB 1608443 A GB1608443 A GB 1608443A GB 1608443 A GB1608443 A GB 1608443A GB 584257 A GB584257 A GB 584257A
Authority
GB
United Kingdom
Prior art keywords
dioxime
rubber
acids
parts
esters
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
GB1608443A
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.)
Standard Oil Development Co
Original Assignee
Standard Oil Development 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 Standard Oil Development Co filed Critical Standard Oil Development Co
Priority to GB1608443A priority Critical patent/GB584257A/en
Publication of GB584257A publication Critical patent/GB584257A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/32—Compounds containing nitrogen bound to oxygen
    • C08K5/33—Oximes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

Natural rubber including guttapercha, and synthetic rubbers are cured by a process which comprises heating them with a quinone dioxime ester of an aromatic or substituted aromatic acid in the presence of an oxidizing agent. The preferred esters are paraquinone dioxime-benzoate, -m-nitrobenzoate, -di (m-nitrobenzoate), -p-chlorobenzoate and -di (p-chlorobenzoate), though any of the esters of quinone dioxime, thymoquinone dioxime, naphthoquinone dioxime and anthraquinone dioxime with alkyl benzoic acids, mono or poly nitrobenzoic acids, mono or poly chlorbenzoic acids, hydroxybenzoic acids and thiosalicylic acids may also be employed. Preferably from 0.2 to 10 parts by weight of the ester to 100 parts of the rubber is used together with up to 25 parts of the oxidizing agent which may be lead peroxide or red lead. The synthetic rubber may be polybutadiene, polychloroprene, an interpolymer of butadiene with acrylonitrile or styrene, or a low temperature interpolymer of an iso-olefin with a diolefin such as that described in Specification 523,248, [Group IV]. The curing agents are preferably added to the rubber while it is in the solid state or in solution in benzene or paraffin naphtha; curing being preferably effected at 75 DEG to 175 DEG C. for a period of 5 to 60 minutes. Examples are given illustrating the superiority as regards freedom from scorch of aromatic quinone dioxime esters over paraquinone dioxime when these compounds are added separately to similar mixes containing different rubbers and substances chosen from lead peroxide, red lead, sulphur, zinc oxide, stearic acid, carbon black and softening oil. Clay and pigments may also be added. Specification 475,034 also is referred to.
GB1608443A 1943-09-30 1943-09-30 Improvements in or relating to the curing of rubber and rubber substitutes Expired GB584257A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1608443A GB584257A (en) 1943-09-30 1943-09-30 Improvements in or relating to the curing of rubber and rubber substitutes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1608443A GB584257A (en) 1943-09-30 1943-09-30 Improvements in or relating to the curing of rubber and rubber substitutes

Publications (1)

Publication Number Publication Date
GB584257A true GB584257A (en) 1947-01-10

Family

ID=10070886

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1608443A Expired GB584257A (en) 1943-09-30 1943-09-30 Improvements in or relating to the curing of rubber and rubber substitutes

Country Status (1)

Country Link
GB (1) GB584257A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1180936B (en) * 1952-06-02 1964-11-05 Exxon Research Engineering Co Process for making vulcanized synthetic rubbery products

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1180936B (en) * 1952-06-02 1964-11-05 Exxon Research Engineering Co Process for making vulcanized synthetic rubbery products

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