GB574901A - Improvements in or relating to rubber and rubber-like materials - Google Patents

Improvements in or relating to rubber and rubber-like materials

Info

Publication number
GB574901A
GB574901A GB302543A GB302543A GB574901A GB 574901 A GB574901 A GB 574901A GB 302543 A GB302543 A GB 302543A GB 302543 A GB302543 A GB 302543A GB 574901 A GB574901 A GB 574901A
Authority
GB
United Kingdom
Prior art keywords
rubber
modified
diisothiocyanate
sulphur
aldehyde
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
GB302543A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and 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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Priority to GB302543A priority Critical patent/GB574901A/en
Publication of GB574901A publication Critical patent/GB574901A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
    • C08C19/00—Chemical modification of rubber
    • C08C19/30—Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/67—Unsaturated compounds having active hydrogen
    • C08G18/69—Polymers of conjugated dienes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

"Active-hydrogen-containing" rubber, i.e. a rubber derivative containing groups such as: -OH, -NH2, -COOH, or -SH, is reacted with an organic compound of two or more -N=C=X groups, X being oxygen or sulphur. The rubber derivative may be an aldehyde-modified natural rubber, balata, gutta percha, neoprene, butadiene- or substituted butadiene polymer or co-polymer, e.g. reacted with 1 : 3 : 5-trioxane, e.g. using as catalyst, zinc chloride, boron trifluoride, sulphuric acid or p-toluenesulphonic acid. The organic compound may be an alkylene-, an alkylidene-, a cycloalkylene- or an aliphatic-aromatic-diisocyanate or diisothiocyanate, or a diiso- or diisothiocyanate containing heterocyclic atoms, or mixed cyanates of the formula XCNRNCS where X is oxygen or sulphur and R is a divalent organic radical. The modified rubber product may be vulcanized, e.g. at 140 DEG C. to produce a tough vulcanizate of good oil, and solvent resistance, or may be used for adhering rubber to base materials, e.g. to metal or glass, or for adhering fabric to fabric or used in coating or impregnating compositions. Alternatively the base material may be coated or impregnated with aldehyde-modified rubber, and with the -N=C=X compound, and heated. Specifications 348,303, and 486,878 are referred to.
GB302543A 1943-02-24 1943-02-24 Improvements in or relating to rubber and rubber-like materials Expired GB574901A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB302543A GB574901A (en) 1943-02-24 1943-02-24 Improvements in or relating to rubber and rubber-like materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB302543A GB574901A (en) 1943-02-24 1943-02-24 Improvements in or relating to rubber and rubber-like materials

Publications (1)

Publication Number Publication Date
GB574901A true GB574901A (en) 1946-01-25

Family

ID=9750544

Family Applications (1)

Application Number Title Priority Date Filing Date
GB302543A Expired GB574901A (en) 1943-02-24 1943-02-24 Improvements in or relating to rubber and rubber-like materials

Country Status (1)

Country Link
GB (1) GB574901A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2814600A (en) * 1954-01-19 1957-11-26 Du Pont Cellular resins from arylene diisocyanates and polysulfide polymers and method of making same
US3036045A (en) * 1955-07-05 1962-05-22 Phillips Petroleum Co Polymer compositions and improved process for vulcanization of rubbery hydroxy-contaiing polymers with polyisocyanates

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2814600A (en) * 1954-01-19 1957-11-26 Du Pont Cellular resins from arylene diisocyanates and polysulfide polymers and method of making same
US3036045A (en) * 1955-07-05 1962-05-22 Phillips Petroleum Co Polymer compositions and improved process for vulcanization of rubbery hydroxy-contaiing polymers with polyisocyanates

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