GB589248A - Improvements in or relating to the preparation of synthetic rubber-like materials - Google Patents

Improvements in or relating to the preparation of synthetic rubber-like materials

Info

Publication number
GB589248A
GB589248A GB2210644A GB2210644A GB589248A GB 589248 A GB589248 A GB 589248A GB 2210644 A GB2210644 A GB 2210644A GB 2210644 A GB2210644 A GB 2210644A GB 589248 A GB589248 A GB 589248A
Authority
GB
United Kingdom
Prior art keywords
added
slurry
washed
mixtures
dried
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
GB2210644A
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.)
Standard Oil Development Co
Original Assignee
Standard Oil Development Co
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 Standard Oil Development Co filed Critical Standard Oil Development Co
Priority to GB2210644A priority Critical patent/GB589248A/en
Publication of GB589248A publication Critical patent/GB589248A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08CTREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
    • C08C1/00Treatment of rubber latex
    • C08C1/14Coagulation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08CTREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
    • C08C1/00Treatment of rubber latex
    • C08C1/14Coagulation
    • C08C1/15Coagulation characterised by the coagulants used

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

Conjugated diolefines are polymerized in soap emulsion with an oxygen-liberating catalyst with or without a copolymerizable hydrocarbon or substituted hydrocarbon containing a single CH2 = C< group, coagulated with brine, an alkali metal or ammonium hydroxide added to the slurry and the polymer particles separated, washed and dried. As soaps, mixtures of oleic acid and alkali hydroxides are used, anti-oxidants, e.g. hydroquinone and phenyl - b - naphthylamine, may be added at the completion of polymerization. If desired after washing, the polymer particles may be reslurried in water containing sufficient alkali to adjust the pH to 10-11, and then filtered, washed and dried. Preferably, 0.25-1.0 per cent of hydroxide is added to the slurry. In addition, 0.1-0.5 per cent of an aliphatic mercaptan having 7 or more carbon atoms, e.g. the mercaptan of sulphonated lauryl alcohol, may be added to the polymerization mixture. Carbon dioxide may be added after coagulation to increase the particle size of the polymer. Specified diolefines are butadiene, isoprene and piperylene and mixtures thereof, and copolymerizable materials include acrylonitrile, methacrylonitrile, acrylic acid esters, methyl vinyl ketone, styrene and substituted styrenes. The copolymer may be compounded with zinc benzothiazyl sulphide and sulphur and vulcanized.
GB2210644A 1944-11-09 1944-11-09 Improvements in or relating to the preparation of synthetic rubber-like materials Expired GB589248A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2210644A GB589248A (en) 1944-11-09 1944-11-09 Improvements in or relating to the preparation of synthetic rubber-like materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2210644A GB589248A (en) 1944-11-09 1944-11-09 Improvements in or relating to the preparation of synthetic rubber-like materials

Publications (1)

Publication Number Publication Date
GB589248A true GB589248A (en) 1947-06-16

Family

ID=10173994

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2210644A Expired GB589248A (en) 1944-11-09 1944-11-09 Improvements in or relating to the preparation of synthetic rubber-like materials

Country Status (1)

Country Link
GB (1) GB589248A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008142042A1 (en) * 2007-05-22 2008-11-27 Lanxess Deutschland Gmbh Nitrile rubbers
WO2020087952A1 (en) * 2018-10-29 2020-05-07 青岛科技大学 Method for flocculating fresh latex

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008142042A1 (en) * 2007-05-22 2008-11-27 Lanxess Deutschland Gmbh Nitrile rubbers
CN101679532B (en) * 2007-05-22 2012-10-10 朗盛德国有限责任公司 Nitrile rubbers
US8664340B2 (en) 2007-05-22 2014-03-04 Lanxess Deutschland Gmbh Nitrile rubbers
WO2020087952A1 (en) * 2018-10-29 2020-05-07 青岛科技大学 Method for flocculating fresh latex

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