GB1460294A - Recovery of polychloroprene rubber - Google Patents

Recovery of polychloroprene rubber

Info

Publication number
GB1460294A
GB1460294A GB2622873A GB2622873A GB1460294A GB 1460294 A GB1460294 A GB 1460294A GB 2622873 A GB2622873 A GB 2622873A GB 2622873 A GB2622873 A GB 2622873A GB 1460294 A GB1460294 A GB 1460294A
Authority
GB
United Kingdom
Prior art keywords
latex
polychloroprene rubber
acid
water soluble
soluble acid
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
GB2622873A
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.)
BP Chemicals Ltd
Original Assignee
BP Chemicals 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 BP Chemicals Ltd filed Critical BP Chemicals Ltd
Priority to GB2622873A priority Critical patent/GB1460294A/en
Priority to DE19742425971 priority patent/DE2425971A1/en
Priority to FR7418724A priority patent/FR2231685B3/fr
Priority to IT2344374A priority patent/IT1021030B/en
Priority to JP6173774A priority patent/JPS5027885A/ja
Publication of GB1460294A publication Critical patent/GB1460294A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F136/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
    • C08F136/02—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
    • C08F136/04—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
    • C08F136/14—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated containing elements other than carbon and hydrogen
    • C08F136/16—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated containing elements other than carbon and hydrogen containing halogen
    • C08F136/18—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated containing elements other than carbon and hydrogen containing halogen containing chlorine
    • 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
    • C08C1/15—Coagulation characterised by the coagulants used

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)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

1460294 Separation of polychloroprene rubber from latex BP CHEMICALS INTERNATIONAL Ltd 23 May 1974 [1 June 1973 27 Nov 1973] 26228/73 and 54969/73 Heading C3P Polychloroprene rubber is separated from a latex obtained by polymerization in the absence of or in the presence of not more than 0À5 wt., per cent (based on the total monomer(s) used) of a rosin acid soap emulsifier, by adding the latex to an aqueous coagulant solution of aluminium sulphate and a water soluble acid, a water dispersible parting agent being brought into contact with the polychloroprene rubber in an aqueous medium during or after coagulation, and thereafter separating the coagulated product from its aqueous medium. The water soluble acid is preferably a mineral acid such as HCl or H 2 SO 4 . A weak water soluble acid such as acetic acid, may be added to the latex, before the latter is added to the coagulant solution, which may optionally contain an alkaline earth metal salt such as CaCl 2 . Suitable parting agents are finely divided inorganic powders such as mica, talc, CaCO 3 , clays and silicas.
GB2622873A 1973-06-01 1973-06-01 Recovery of polychloroprene rubber Expired GB1460294A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB2622873A GB1460294A (en) 1973-06-01 1973-06-01 Recovery of polychloroprene rubber
DE19742425971 DE2425971A1 (en) 1973-06-01 1974-05-30 METHOD OF OBTAINING POLYCHLOROPRENE RUBBER
FR7418724A FR2231685B3 (en) 1973-06-01 1974-05-30
IT2344374A IT1021030B (en) 1973-06-01 1974-05-31 RECOVERY OF POLYCHLOROPRENE RUBBER
JP6173774A JPS5027885A (en) 1973-06-01 1974-05-31

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2622873A GB1460294A (en) 1973-06-01 1973-06-01 Recovery of polychloroprene rubber
GB5496973 1973-11-27

Publications (1)

Publication Number Publication Date
GB1460294A true GB1460294A (en) 1976-12-31

Family

ID=26258151

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2622873A Expired GB1460294A (en) 1973-06-01 1973-06-01 Recovery of polychloroprene rubber

Country Status (5)

Country Link
JP (1) JPS5027885A (en)
DE (1) DE2425971A1 (en)
FR (1) FR2231685B3 (en)
GB (1) GB1460294A (en)
IT (1) IT1021030B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5130976U (en) * 1974-08-28 1976-03-05
US3988306A (en) * 1975-04-28 1976-10-26 Petro-Tex Chemical Corporation Polychloroprene powders
DE3405940A1 (en) * 1984-02-18 1985-08-22 Bayer Ag, 5090 Leverkusen SALT-FREE REFINED MOLDS
US4632958A (en) * 1985-09-16 1986-12-30 Armstrong World Industries, Inc. NBR/silicate blends

Also Published As

Publication number Publication date
JPS5027885A (en) 1975-03-22
DE2425971A1 (en) 1974-12-19
FR2231685B3 (en) 1977-03-25
FR2231685A1 (en) 1974-12-27
IT1021030B (en) 1978-01-30

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Legal Events

Date Code Title Description
PS Patent sealed