GB193451A - Improvements in and relating to the manufacture of rubber - Google Patents

Improvements in and relating to the manufacture of rubber

Info

Publication number
GB193451A
GB193451A GB2538321A GB2538321A GB193451A GB 193451 A GB193451 A GB 193451A GB 2538321 A GB2538321 A GB 2538321A GB 2538321 A GB2538321 A GB 2538321A GB 193451 A GB193451 A GB 193451A
Authority
GB
United Kingdom
Prior art keywords
latex
ccm
coagulation
added
liquid
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
GB2538321A
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 GB2538321A priority Critical patent/GB193451A/en
Priority to GB24950/22A priority patent/GB208235A/en
Publication of GB193451A publication Critical patent/GB193451A/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
    • C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
    • C08J3/26—Crosslinking, e.g. vulcanising, of macromolecules of latex
    • 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
    • C08J2307/02—Latex

Landscapes

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

Abstract

193,451. Schidrowitz, P. Sept. 24, 1921. Latex, treating; vulcanizing. - A solution or colloid suspension of vulcanized rubber in water is obtained by submitting latex to vulcanization with sulphur or the like under such conditions that coagulation is precluded. The latex must be rendered alkaline to inhibit coagulation by the addition of alkali as ammonia, or a base as piperidine, or by the use of a vulcanizing-agent such as an alkaline polysulphide. Coagulation may also be prevented by dilution of the latex, or by the addition of a colloid as casein, which also renders the final product less liable to be tacky. Several examples are given in the Specification, of which the following is typical :-1.6 ccm. of ammonia is added to 100 ccm. of latex containing about 30 per cent of rubber, and a cream consisting of 3 gm. of sulphur, 1 gm. of zinc oxide, 1 ccm. of piperidine in 35 ccm. of water is added. The whole is placed in a vulcanizer and vulcanized, half an hour rise to 40 lbs., and half-anhour at 40 lbs., and the liquid is strained. Coagulation may be effected by the addition of an acid, or by evaporation of the liquid, and the coagulum may be washed, milled, sheeted &c. Articles may be coated with the liquid and dried, or sheets made by building up films. Fillers, dyes &c. may be added at any stage. Specification 18497/10 is referred to.
GB2538321A 1921-09-24 1921-09-24 Improvements in and relating to the manufacture of rubber Expired GB193451A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2538321A GB193451A (en) 1921-09-24 1921-09-24 Improvements in and relating to the manufacture of rubber
GB24950/22A GB208235A (en) 1921-09-24 1922-09-14 Improvements in and relating to the manufacture of rubber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2538321A GB193451A (en) 1921-09-24 1921-09-24 Improvements in and relating to the manufacture of rubber

Publications (1)

Publication Number Publication Date
GB193451A true GB193451A (en) 1923-02-26

Family

ID=10226775

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2538321A Expired GB193451A (en) 1921-09-24 1921-09-24 Improvements in and relating to the manufacture of rubber

Country Status (1)

Country Link
GB (1) GB193451A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE937494C (en) * 1938-01-12 1956-01-05 Indonesisch Inst Voor Rubberon Process for the production of a rubber powder from rubber milk

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE937494C (en) * 1938-01-12 1956-01-05 Indonesisch Inst Voor Rubberon Process for the production of a rubber powder from rubber milk

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