GB836201A - Semi-ebonites - Google Patents

Semi-ebonites

Info

Publication number
GB836201A
GB836201A GB2830156A GB2830156A GB836201A GB 836201 A GB836201 A GB 836201A GB 2830156 A GB2830156 A GB 2830156A GB 2830156 A GB2830156 A GB 2830156A GB 836201 A GB836201 A GB 836201A
Authority
GB
United Kingdom
Prior art keywords
rubber
natural
compound
weight
light
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
GB2830156A
Inventor
Keith Reeve Taylor
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.)
Monsanto Chemicals Ltd
Original Assignee
Monsanto Chemicals 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
Application filed by Monsanto Chemicals Ltd filed Critical Monsanto Chemicals Ltd
Priority to GB2830156A priority Critical patent/GB836201A/en
Publication of GB836201A publication Critical patent/GB836201A/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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/06—Sulfur
    • 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
    • C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
    • C08K5/37—Thiols
    • C08K5/378—Thiols containing heterocyclic rings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L7/00—Compositions 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)

Abstract

Light-coloured semi-ebonites are obtained by vulcanizing a natural or synthetic rubber stock containing a light-coloured filler, e.g. titanium dioxide, barytes, zinc oxide, whiting or clay, with a compound which liberates sulphur during the vulcanization process, elementary sulphur being absent or insufficient to cause discoloration, i.e. in general less than 5% by weight. The preferred amount of sulphurliberating compound is 5 to 25% by weight of the rubber, suitable compounds being organic polysulphides, e.g. N,N1-dithiomorpholine and tetra-alkyl thiuram disulphides. The rubber stock may comprise, in addition to natural or synthetic rubber, e.g. polymers and copolymers of 1 : 3-butadienes, a synthetic resin material, e.g. a polymer or copolymer of styrene, or phenol formaldehyde, in the place of part of the rubber.
GB2830156A 1956-09-17 1956-09-17 Semi-ebonites Expired GB836201A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2830156A GB836201A (en) 1956-09-17 1956-09-17 Semi-ebonites

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2830156A GB836201A (en) 1956-09-17 1956-09-17 Semi-ebonites

Publications (1)

Publication Number Publication Date
GB836201A true GB836201A (en) 1960-06-01

Family

ID=10273470

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2830156A Expired GB836201A (en) 1956-09-17 1956-09-17 Semi-ebonites

Country Status (1)

Country Link
GB (1) GB836201A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2483440A1 (en) * 1980-05-31 1981-12-04 Metzeler Kautschuk VULCANIZABLE RUBBER MIXTURE AND METHOD OF VULCANIZING SUCH A RUBBER MIXTURE
WO1996036660A1 (en) * 1995-05-20 1996-11-21 Henkel Teroson Gmbh Heat-setting rubber foams with high structural strength

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2483440A1 (en) * 1980-05-31 1981-12-04 Metzeler Kautschuk VULCANIZABLE RUBBER MIXTURE AND METHOD OF VULCANIZING SUCH A RUBBER MIXTURE
WO1996036660A1 (en) * 1995-05-20 1996-11-21 Henkel Teroson Gmbh Heat-setting rubber foams with high structural strength
US5994422A (en) * 1995-05-20 1999-11-30 Henkel-Teroson Gmbh Hot-curing rubber foams with high structural strength

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