GB436965A - Improvements in the manufacture of rubber and the like articles - Google Patents

Improvements in the manufacture of rubber and the like articles

Info

Publication number
GB436965A
GB436965A GB1213434A GB1213434A GB436965A GB 436965 A GB436965 A GB 436965A GB 1213434 A GB1213434 A GB 1213434A GB 1213434 A GB1213434 A GB 1213434A GB 436965 A GB436965 A GB 436965A
Authority
GB
United Kingdom
Prior art keywords
mixture
rubber
specified
agents
petrol
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
GB1213434A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1213434A priority Critical patent/GB436965A/en
Publication of GB436965A publication Critical patent/GB436965A/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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L21/00—Compositions of unspecified rubbers
    • 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
    • C08J2201/00—Foams characterised by the foaming process
    • C08J2201/02—Foams characterised by the foaming process characterised by mechanical pre- or post-treatments
    • C08J2201/032—Impregnation of a formed object with a gas
    • 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
    • C08J2321/00—Characterised by the use of unspecified rubbers
    • C08J2321/02—Latex

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)
  • Materials Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

Shaped rubber and the like articles are made by mixing a concentrated aqueous dispersion of rubber or the like with an amount of a rubber softening agent in excess by weight of the content of the rubber or like in the dispersion and with agents capable of forming gas in the mixture on heating, of gelling the mixture, and if necessary of vulcanizing the mixture; rubber solvents may also be added. The mixture is shaped whilst unset and, after setting and at least until no longer plastic, the mixture is heated under pressure conditions restraining swelling; if necessary the vulcanization is completed after release of the pressure restraining swelling. The softening agent is stated to prevent distortion of the articles on shrinkage due to drying on storing. The dispersions may be natural or artificial and may be vulcanized or not. Softening agents specified are rosin oil, paraffin oil and petroleum jelly; gas generating agents specified are ammonium carbonate and petrol; a gelling agent specified is ammonium carbonate; solvents specified are petrol and paraffin oil; some of the substances specified e.g. petrol and ammonium carbonate may be added for more than one purpose. Reinforcing agents, e.g. hair or fibre and colouring agents may be added to the mixture. The heating under pressure may be carried out in closed moulds or between platens or under fluid pressure and the mixture may be completely vulcanized whilst so heated.
GB1213434A 1934-04-23 1934-04-23 Improvements in the manufacture of rubber and the like articles Expired GB436965A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1213434A GB436965A (en) 1934-04-23 1934-04-23 Improvements in the manufacture of rubber and the like articles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1213434A GB436965A (en) 1934-04-23 1934-04-23 Improvements in the manufacture of rubber and the like articles

Publications (1)

Publication Number Publication Date
GB436965A true GB436965A (en) 1935-10-22

Family

ID=9998959

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1213434A Expired GB436965A (en) 1934-04-23 1934-04-23 Improvements in the manufacture of rubber and the like articles

Country Status (1)

Country Link
GB (1) GB436965A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2680140A (en) * 1949-04-05 1954-06-01 Carter Mitchell Process for preparing sponge rubber from latex and product

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2680140A (en) * 1949-04-05 1954-06-01 Carter Mitchell Process for preparing sponge rubber from latex and product

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