GB983297A - Improvements in or relating to aqueous dispersions - Google Patents

Improvements in or relating to aqueous dispersions

Info

Publication number
GB983297A
GB983297A GB1669861A GB1669861A GB983297A GB 983297 A GB983297 A GB 983297A GB 1669861 A GB1669861 A GB 1669861A GB 1669861 A GB1669861 A GB 1669861A GB 983297 A GB983297 A GB 983297A
Authority
GB
United Kingdom
Prior art keywords
water
solvent
polymer
ionic
solution
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
GB1669861A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB983297A publication Critical patent/GB983297A/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
    • C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
    • C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
    • C08J3/07—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media from polymer solutions
    • 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
    • C08J2309/00—Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons

Abstract

An aqueous dispersion of a diene polymer material containing at least 50% of a C4 to C6 hydrocarbon conjugated diene monomer anhydrously polymerized in solution is prepared by forming a solution thereof in a water-immisccible solvent, the solvent or the aqueous azeotropes therefor having a boiling-point below that of water, adding less than 20% based on the polymer material, of an emulsifiying agent and less than 100% based on the polymer solution, of water forming an emulsion of the resultant mixture and removing the solvent from the emulsion. The polymer may be prepared with the use of Alfin catalysts, lithium metal, organo-lithium, active metal oxide catalysts or organo-metallic cocatalysts. Specified polymers are those containing at least 50% butadiene-1,3 or isoprene or butadiene-styrene. The water-immiscible solvents are methylene chloride, chloroform, carbon tetrachloride, carbon bisulphide, benzene, cyclohexane, methyl cyclohexane, or a paraffin hydrocarbon solvent and may be removed from the aqueous dispersion by distillation while the resultant aqueous polymer dispersion may be concentrated by distilling off water or by the addition of a creaming agent and separation of the creamed layer. The emulsifying agent may be cationic, non-ionic or mixtures of either a non-ionic and anionic or of non-ionic and cationic. Specification 821,971 is referred to.
GB1669861A 1960-05-09 1961-05-08 Improvements in or relating to aqueous dispersions Expired GB983297A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2748260A 1960-05-09 1960-05-09

Publications (1)

Publication Number Publication Date
GB983297A true GB983297A (en) 1965-02-17

Family

ID=21837986

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1669861A Expired GB983297A (en) 1960-05-09 1961-05-08 Improvements in or relating to aqueous dispersions

Country Status (1)

Country Link
GB (1) GB983297A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0240697A1 (en) * 1986-02-28 1987-10-14 Nippon Zeon Co., Ltd. Nitrile group-containing highly saturated polymer rubber latex and process for production thereof
EP0680992A1 (en) * 1993-11-22 1995-11-08 Sumitomo Seika Chemicals Co., Ltd. Process for producing hydrogenated nbr latex
EP1840153A1 (en) * 2006-03-27 2007-10-03 Kraton Polymers Research B.V. Process for the preparation of an artificial latex

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0240697A1 (en) * 1986-02-28 1987-10-14 Nippon Zeon Co., Ltd. Nitrile group-containing highly saturated polymer rubber latex and process for production thereof
EP0680992A1 (en) * 1993-11-22 1995-11-08 Sumitomo Seika Chemicals Co., Ltd. Process for producing hydrogenated nbr latex
EP0680992A4 (en) * 1993-11-22 1996-07-24 Sumitomo Seika Chemicals Process for producing hydrogenated nbr latex.
EP1840153A1 (en) * 2006-03-27 2007-10-03 Kraton Polymers Research B.V. Process for the preparation of an artificial latex
WO2007110417A1 (en) * 2006-03-27 2007-10-04 Kraton Polymers Research B.V. Process for the preparation of an artificial latex
JP2009531497A (en) * 2006-03-27 2009-09-03 クレイトン・ポリマーズ・リサーチ・ベー・ベー Method of preparation of artificial latex
CN101415752B (en) * 2006-03-27 2012-07-04 克莱顿聚合物研究有限公司 Process for the preparation of an artificial latex

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