FR2153913A5 - Elastomer latex -contg gel-free polyisoprene with very - high cis-1,4-content and low catalyst residue content - Google Patents

Elastomer latex -contg gel-free polyisoprene with very - high cis-1,4-content and low catalyst residue content

Info

Publication number
FR2153913A5
FR2153913A5 FR7231343A FR7231343A FR2153913A5 FR 2153913 A5 FR2153913 A5 FR 2153913A5 FR 7231343 A FR7231343 A FR 7231343A FR 7231343 A FR7231343 A FR 7231343A FR 2153913 A5 FR2153913 A5 FR 2153913A5
Authority
FR
France
Prior art keywords
polyisoprene
content
gel
contg
latex
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
FR7231343A
Other languages
French (fr)
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.)
SnamProgetti SpA
Original Assignee
SnamProgetti SpA
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 SnamProgetti SpA filed Critical SnamProgetti SpA
Application granted granted Critical
Publication of FR2153913A5 publication Critical patent/FR2153913A5/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
    • C08J3/09—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (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)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Elastomer latex contains a gel-free linear cis-1,4 polyisoprene with >95% cis-1,4 units and a residual catalyst content of 0.04% wt. The latex is prepd. by (a) washing the polyisoprene soln. before emulsification without adding a stopping agent or other additives, except antioxidants, (b) emulsifying the polyisoprene soln. (c) fractionating the crude emulsion with recycle to the feed of particles with an excessive diameter, (d) eliminating the org. solvent by evaporation or extraction and (e) conc. the latex. The org. solvent is a 3-8C aliphatic hydrocarbon. Emulsification is effected in the presence of 0.1-0.8% wt. emulsifier, based on polyisoprene pref. a Na or K soap of fatty acids and/or rosin acid.
FR7231343A 1971-09-16 1972-09-05 Elastomer latex -contg gel-free polyisoprene with very - high cis-1,4-content and low catalyst residue content Expired FR2153913A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2870971 1971-09-16

Publications (1)

Publication Number Publication Date
FR2153913A5 true FR2153913A5 (en) 1973-05-04

Family

ID=11224039

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7231343A Expired FR2153913A5 (en) 1971-09-16 1972-09-05 Elastomer latex -contg gel-free polyisoprene with very - high cis-1,4-content and low catalyst residue content

Country Status (15)

Country Link
JP (1) JPS4838387A (en)
AT (1) AT331024B (en)
BE (1) BE788434A (en)
CH (1) CH557841A (en)
CS (1) CS182226B2 (en)
DD (1) DD98938A5 (en)
DE (1) DE2245370A1 (en)
ES (1) ES406881A1 (en)
FR (1) FR2153913A5 (en)
LU (1) LU66065A1 (en)
NL (1) NL7212608A (en)
RO (1) RO64681A (en)
SE (1) SE399898B (en)
TR (1) TR17385A (en)
ZA (1) ZA726142B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8163838B2 (en) 2006-12-21 2012-04-24 Kraton Polymers Us Llc Process for the preparation of an artificial latex
US8648131B2 (en) 2008-07-07 2014-02-11 Kraton Polymers U.S. Llc Process for the preparation of an artificial latex

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5618380Y2 (en) * 1977-08-06 1981-04-30
JP5899011B2 (en) * 2012-03-07 2016-04-06 株式会社ブリヂストン POLYMER, RUBBER COMPOSITION CONTAINING THE POLYMER, AND TIRE HAVING THE RUBBER COMPOSITION

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8163838B2 (en) 2006-12-21 2012-04-24 Kraton Polymers Us Llc Process for the preparation of an artificial latex
US8648131B2 (en) 2008-07-07 2014-02-11 Kraton Polymers U.S. Llc Process for the preparation of an artificial latex

Also Published As

Publication number Publication date
NL7212608A (en) 1973-03-20
LU66065A1 (en) 1973-01-17
CH557841A (en) 1975-01-15
CS182226B2 (en) 1978-04-28
DD98938A5 (en) 1973-07-12
ATA799172A (en) 1975-10-15
BE788434A (en) 1973-01-02
DE2245370A1 (en) 1973-03-29
AT331024B (en) 1976-07-26
RO64681A (en) 1980-02-15
TR17385A (en) 1975-03-24
SE399898B (en) 1978-03-06
JPS4838387A (en) 1973-06-06
ES406881A1 (en) 1975-10-01
ZA726142B (en) 1973-06-27

Similar Documents

Publication Publication Date Title
Wells A study of the formants of the pure vowels of British English
GB1404061A (en) Process for enlarging the particle size of polymer dispersions
FR2153913A5 (en) Elastomer latex -contg gel-free polyisoprene with very - high cis-1,4-content and low catalyst residue content
GB1378771A (en) Oil compositions
US2848429A (en) Asphalt compositions
ES295751A1 (en) A procedure to prepare ciclohexanol and ciclohexanona (Machine-translation by Google Translate, not legally binding)
GB994609A (en) Vulcanisation process
GB476227A (en) Improvements in and relating to the propulsion of rockets
US2248465A (en) Process for the reduction of fatty acids to alcohols
GB1001155A (en) Process for stripping paints
GB1079189A (en) Stabilized rosin as emulsifier in aqueous emulsion polymerizations and method of preparing same
GB1035309A (en) Improvements in or relating to production of synthetic pine oil
US2216257A (en) Process of breaking mineral oil emulsions
GB764752A (en) Improved residual fuel
GB1334204A (en) Preparation of fatty acid ester mixtures enriched in unsaturates
US2300607A (en) Vulcanizable polymerization product and process of producing same
GB1515915A (en) Water-in-oil emulsions
GB1352476A (en) Process for polymerising fatty acids
GB1227795A (en)
GB433867A (en) Improvements in the manufacture and production of rubber mixtures
US2023993A (en) Process for breaking petroleum emulsions
GB573013A (en) Improvements in or relating to emulsifying agents and emulsions containing the same
GB477940A (en) Improvements in or relating to reclaiming of rubber from waste rubber products
US2037885A (en) Process for breaking petroleum emulsions
GB1067311A (en) An improved process for the preparation of saturated aliphatic alpha-sustituted di-acids

Legal Events

Date Code Title Description
ST Notification of lapse