GB1046811A - Process for the continuous coagulation of aqueous rubber dispersions - Google Patents

Process for the continuous coagulation of aqueous rubber dispersions

Info

Publication number
GB1046811A
GB1046811A GB613364A GB613364A GB1046811A GB 1046811 A GB1046811 A GB 1046811A GB 613364 A GB613364 A GB 613364A GB 613364 A GB613364 A GB 613364A GB 1046811 A GB1046811 A GB 1046811A
Authority
GB
United Kingdom
Prior art keywords
dispersion
acid
silica
aqueous
aqueous rubber
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
GB613364A
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Deutsche Gold und Silber Scheideanstalt
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 Degussa GmbH, Deutsche Gold und Silber Scheideanstalt filed Critical Degussa GmbH
Publication of GB1046811A publication Critical patent/GB1046811A/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
    • C08J3/20—Compounding polymers with additives, e.g. colouring
    • C08J3/205—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase
    • C08J3/21—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase the polymer being premixed with a liquid phase
    • C08J3/215—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase the polymer being premixed with a liquid phase at least one additive being also premixed with a liquid phase
    • 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
    • C08C1/14—Coagulation
    • 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
    • C08J2321/00—Characterised by the use of unspecified rubbers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

A rubber-silica composition is prepared continuously by a process wherein an aqueous dispersion of elastomer containing a non-ionic emulsifier is introduced into a mixing vessel simultaneously with an aqueous, acid dispersion of a wet-precipitated silica, said dispersion having a pH of 1 to 5, whereby the elastomer is coagulated in intimate mixture with the silica and continuously withdrawing the precipitate formed from the vessel. If desired, further additions of dilute acid may be made to the mixing vessel to maintain an acid pH. The process is applicable to natural or synthetic rubbers and other polymers. In the example, a styrene/butadiene rubber mixed with 5% of a soy bean/lecithin plasticizer is used.
GB613364A 1963-03-12 1964-02-13 Process for the continuous coagulation of aqueous rubber dispersions Expired GB1046811A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED41107A DE1273179B (en) 1963-03-12 1963-03-12 Process for the continuous coagulation of aqueous synthetic rubber dispersions

Publications (1)

Publication Number Publication Date
GB1046811A true GB1046811A (en) 1966-10-26

Family

ID=7045881

Family Applications (1)

Application Number Title Priority Date Filing Date
GB613364A Expired GB1046811A (en) 1963-03-12 1964-02-13 Process for the continuous coagulation of aqueous rubber dispersions

Country Status (4)

Country Link
BE (1) BE644998A (en)
DE (1) DE1273179B (en)
GB (1) GB1046811A (en)
NL (1) NL6400381A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138430A (en) * 1983-04-19 1984-10-24 Polysar Ltd Mixing polymers and fibrous materials
US7745511B2 (en) 2007-07-17 2010-06-29 The Yokohama Rubber Co., Ltd. Emulsion coagulant

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138430A (en) * 1983-04-19 1984-10-24 Polysar Ltd Mixing polymers and fibrous materials
FR2544727A1 (en) * 1983-04-19 1984-10-26 Polysar Ltd PROCESS FOR THE PRODUCTION OF MIXTURES OF POLYMERS AND FIBROUS MATERIALS, PRODUCTS THEREOF AND VULCANISATES OBTAINED THEREFROM
AU572504B2 (en) * 1983-04-19 1988-05-12 Polysar Ltd. Coagulation of rubber-fibres mixtures
US7745511B2 (en) 2007-07-17 2010-06-29 The Yokohama Rubber Co., Ltd. Emulsion coagulant

Also Published As

Publication number Publication date
DE1273179B (en) 1968-07-18
BE644998A (en) 1964-07-01
NL6400381A (en) 1964-09-14

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