GB616174A - Process for the manufacture of plasticised rubber from latex - Google Patents

Process for the manufacture of plasticised rubber from latex

Info

Publication number
GB616174A
GB616174A GB13837/46A GB1383746A GB616174A GB 616174 A GB616174 A GB 616174A GB 13837/46 A GB13837/46 A GB 13837/46A GB 1383746 A GB1383746 A GB 1383746A GB 616174 A GB616174 A GB 616174A
Authority
GB
United Kingdom
Prior art keywords
latex
rubber
treated
coagulation
manufacture
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
GB13837/46A
Inventor
Charles Saint-Mleux
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.)
MERIDIONALE DU CAOUTCHOUC SOME
Original Assignee
MERIDIONALE DU CAOUTCHOUC SOME
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 MERIDIONALE DU CAOUTCHOUC SOME filed Critical MERIDIONALE DU CAOUTCHOUC SOME
Publication of GB616174A publication Critical patent/GB616174A/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
    • C08C19/08—Depolymerisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • General 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)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

Rubber of a predetermined plasticity is obtained by treating natural rubber latex with aqueous hydrogen peroxide of 20-250 volume strength at a temperature below 60 DEG C. and separating the rubber by coagulation from the treated latex. The latex which may be stabilized with casein is preferably treated by several additions of peroxide at a temperature of 30 DEG C. and is subsequently cooled to 10-15 DEG C. to produce after coagulation a rubber having a fluidity of 1800 DEG Barbey when measured at 56 DEG C. Other plasticites may be obtained by mixing this treated latex with definite quantities of natural latex and then coagulating the mixture. The treatment is preferably effected in enamelled sheet metal vats. Specification 603,095 is referred to.
GB13837/46A 1945-05-22 1946-05-07 Process for the manufacture of plasticised rubber from latex Expired GB616174A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR818572X 1945-05-22

Publications (1)

Publication Number Publication Date
GB616174A true GB616174A (en) 1949-01-18

Family

ID=9268966

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13837/46A Expired GB616174A (en) 1945-05-22 1946-05-07 Process for the manufacture of plasticised rubber from latex

Country Status (5)

Country Link
BE (1) BE473226A (en)
DE (1) DE818572C (en)
ES (1) ES173665A1 (en)
FR (1) FR996691A (en)
GB (1) GB616174A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0238795A1 (en) * 1986-03-01 1987-09-30 Hüls Aktiengesellschaft Process for reducing the molecular weight of natural rubber in latex form

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1193239B (en) * 1962-06-30 1965-05-20 Continental Gummi Werke Ag Process for masticating solid natural or synthetic rubbers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0238795A1 (en) * 1986-03-01 1987-09-30 Hüls Aktiengesellschaft Process for reducing the molecular weight of natural rubber in latex form

Also Published As

Publication number Publication date
FR996691A (en) 1951-12-24
BE473226A (en)
ES173665A1 (en) 1946-07-01
DE818572C (en) 1951-10-25

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