GB695813A - Recovery of rubber from latex skim - Google Patents

Recovery of rubber from latex skim

Info

Publication number
GB695813A
GB695813A GB2522850A GB2522850A GB695813A GB 695813 A GB695813 A GB 695813A GB 2522850 A GB2522850 A GB 2522850A GB 2522850 A GB2522850 A GB 2522850A GB 695813 A GB695813 A GB 695813A
Authority
GB
United Kingdom
Prior art keywords
skim
rubber
recovery
latex
per cent
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
GB2522850A
Inventor
Frederick James Paton
Bernard James Newey
Thomas Henry Barnwell
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.)
Dunlop Rubber Co Ltd
Original Assignee
Dunlop Rubber Co 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 Dunlop Rubber Co Ltd filed Critical Dunlop Rubber Co Ltd
Priority to GB2522850A priority Critical patent/GB695813A/en
Publication of GB695813A publication Critical patent/GB695813A/en
Priority to MY5400026A priority patent/MY5400026A/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
    • C08C1/00—Treatment of rubber latex
    • C08C1/02—Chemical or physical treatment of rubber latex before or during concentration
    • C08C1/075—Concentrating
    • C08C1/10—Concentrating by centrifugation

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)

Abstract

Rubber of improved quality is obtained from latex skim by digesting the skim with a proteolytic enzyme to decompose proteinaceous materials, acidifying, and recovering the resulting rubber coagulum. The enzyme may be trypsin or papein in an amount of 0.01 to 0.025 per cent. based on the weight of the skim. Digestion is preferably effected at 25-40 DEG C for 12-48 hours and in the presence of about 0.05 per cent. of ammonium or sodium polychlorophenate and excess ammonia. Coagulation may be effected with formic acid.
GB2522850A 1950-10-17 1950-10-17 Recovery of rubber from latex skim Expired GB695813A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2522850A GB695813A (en) 1950-10-17 1950-10-17 Recovery of rubber from latex skim
MY5400026A MY5400026A (en) 1950-10-17 1954-12-30 Recovery of rubber from latex skim

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2522850A GB695813A (en) 1950-10-17 1950-10-17 Recovery of rubber from latex skim

Publications (1)

Publication Number Publication Date
GB695813A true GB695813A (en) 1953-08-19

Family

ID=10224282

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2522850A Expired GB695813A (en) 1950-10-17 1950-10-17 Recovery of rubber from latex skim

Country Status (2)

Country Link
GB (1) GB695813A (en)
MY (1) MY5400026A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103772532A (en) * 2014-02-10 2014-05-07 海南天然橡胶产业集团股份有限公司 Method for processing skim rubber
CN104693321A (en) * 2013-12-05 2015-06-10 海南大学 Method for improving properties of skim rubber

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104693321A (en) * 2013-12-05 2015-06-10 海南大学 Method for improving properties of skim rubber
CN103772532A (en) * 2014-02-10 2014-05-07 海南天然橡胶产业集团股份有限公司 Method for processing skim rubber

Also Published As

Publication number Publication date
MY5400026A (en) 1954-12-31

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