GB741049A - Improvements in the manufacture of rubber - Google Patents

Improvements in the manufacture of rubber

Info

Publication number
GB741049A
GB741049A GB1497052A GB1497052A GB741049A GB 741049 A GB741049 A GB 741049A GB 1497052 A GB1497052 A GB 1497052A GB 1497052 A GB1497052 A GB 1497052A GB 741049 A GB741049 A GB 741049A
Authority
GB
United Kingdom
Prior art keywords
rubber
crumb
coagulum
attrition
grinding
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
GB1497052A
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.)
SOCFIN Co Ltd
Original Assignee
SOCFIN 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 SOCFIN Co Ltd filed Critical SOCFIN Co Ltd
Priority to GB1497052A priority Critical patent/GB741049A/en
Publication of GB741049A publication Critical patent/GB741049A/en
Priority to MY5600015A priority patent/MY5600015A/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
    • C08C3/00—Treatment of coagulated rubber

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)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

Rubber in powder form is obtained from naturally or chemically coagulated rubber by disintegrating the rubber coagulum to crumb optionally with bleaching, and then subjecting the crumb to a second stage grinding in an attrition or hammer mill before or after vulcanizing. Any free hydrochloric acid may be removed by an ammoniacal treatment. In an example, cut lump coagulum was cleaned by means of a plantation scrap-washer, and was then passed through an attrition mill to give pieces 1/4 to 3/8 inch in diameter, vulcanization was effected by adding the rubber with water to an open heated steam vessel together with an aqueous slurry of sulphur, zinc oxide, sodium diethyl dithiocarbamate and a dispersing agent and the whole heated at 90-95 DEG C. for one hour. After drying at 100-105 DEG F., the vulcanized rubber was in the form of a free flowing powder. Talc is preferably added during grinding.
GB1497052A 1952-06-13 1952-06-13 Improvements in the manufacture of rubber Expired GB741049A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1497052A GB741049A (en) 1952-06-13 1952-06-13 Improvements in the manufacture of rubber
MY5600015A MY5600015A (en) 1952-06-13 1956-12-30 Improvements in the manufacture of rubber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1497052A GB741049A (en) 1952-06-13 1952-06-13 Improvements in the manufacture of rubber

Publications (1)

Publication Number Publication Date
GB741049A true GB741049A (en) 1955-11-23

Family

ID=10050781

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1497052A Expired GB741049A (en) 1952-06-13 1952-06-13 Improvements in the manufacture of rubber

Country Status (2)

Country Link
GB (1) GB741049A (en)
MY (1) MY5600015A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010020448A1 (en) * 2008-08-16 2010-02-25 Continental Reifen Deutschland Gmbh Method for modifying natural rubber, and modified natural rubber
CN107718349A (en) * 2017-11-16 2018-02-23 云南农垦集团孟连橡胶有限责任公司 The miscellaneous glue processing technology of natural rubber and equipment of a kind of anti-glue fragmentation

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010020448A1 (en) * 2008-08-16 2010-02-25 Continental Reifen Deutschland Gmbh Method for modifying natural rubber, and modified natural rubber
CN102124034A (en) * 2008-08-16 2011-07-13 德国大陆轮胎有限公司 Method for modifying natural rubber, and modified natural rubber
US8815978B2 (en) 2008-08-16 2014-08-26 Continental Reifen Deutschland Gmbh Process for modifying natural rubber, and modified natural rubber
CN107718349A (en) * 2017-11-16 2018-02-23 云南农垦集团孟连橡胶有限责任公司 The miscellaneous glue processing technology of natural rubber and equipment of a kind of anti-glue fragmentation

Also Published As

Publication number Publication date
MY5600015A (en) 1956-12-31

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