GB1105266A - Preparation of conjugated diene-containing copolymers - Google Patents

Preparation of conjugated diene-containing copolymers

Info

Publication number
GB1105266A
GB1105266A GB1880165A GB1880165A GB1105266A GB 1105266 A GB1105266 A GB 1105266A GB 1880165 A GB1880165 A GB 1880165A GB 1880165 A GB1880165 A GB 1880165A GB 1105266 A GB1105266 A GB 1105266A
Authority
GB
United Kingdom
Prior art keywords
butadiene
latex
polymer
styrene
particles
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
GB1880165A
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.)
WR Grace and Co
Original Assignee
WR Grace and 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
Priority claimed from US364761A external-priority patent/US3397165A/en
Application filed by WR Grace and Co filed Critical WR Grace and Co
Publication of GB1105266A publication Critical patent/GB1105266A/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
    • C08F236/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
    • C08F236/02—Copolymers 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
    • C08F236/04—Copolymers 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
    • 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
    • C08F279/00—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00
    • C08F279/02—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00 on to polymers of conjugated dienes
    • 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
    • C08F36/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
    • C08F36/02—Homopolymers and copolymers 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
    • C08F36/04—Homopolymers and copolymers 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

Landscapes

  • 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)
  • Polymerisation Methods In General (AREA)
  • Paints Or Removers (AREA)
  • Graft Or Block Polymers (AREA)

Abstract

A latex of a conjugated diene polymer having a high degree of particle uniformity and of surface tension uniformity is produced by continuously adding to an aqueous dispersion of a polymer latex of particle size less than that of the polymer particles to be produced, under polymerization conditions, monomer material which is soluble in the polymer latex and comprises conjugated diene and emulsifier, the rate at which the monomer is added being such that it is associated with the initial latex particles and the rate at which emulsifier is added being proportional to the rate of growth of surface area of the polymer particles and insufficient to cause the formation of micelles and provide loci for polymerization, and in amounts such that only 30 to 70% of the surface area of the particles is covered with emulsifier. The specified conjugated diene polymers are those of isoprene and 2,3-dimethyl-1,3-butadiene and of butadiene (preferred). The initial latex particles may make up 0.5 to 98% of the final polymer, the amount of initial latex particles being 2 to 10% of the monomer(s) added and their average size being 400 to 800A, while the latex produced may have an average particle size of 2000 A. The polymerization may take place at 60 DEG to 82 DEG C. under a pressure of 2.1 to 8.4 kg. per sq. cm. in the presence of a free radical initiator and the polymerization takes place until no more polymer is formed. The initial polymer latex may be an aqueous dispersion of a 60:40 styrene butadiene latex and the monomers added in the examples are (1) styrene, butadiene, methacrylic acid; (2), (3) butadiene, styrene, vinylidene chloride and methacrylic acid; (4) styrene and butadiene; (5) butadiene, acrylonitrile, acrylic acid; and (6) and (7) styrene and butadiene.
GB1880165A 1964-05-04 1965-05-04 Preparation of conjugated diene-containing copolymers Expired GB1105266A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US36475264A 1964-05-04 1964-05-04
US364761A US3397165A (en) 1964-05-04 1964-05-04 Preparation of latex of butadienecontaining copolymers

Publications (1)

Publication Number Publication Date
GB1105266A true GB1105266A (en) 1968-03-06

Family

ID=27002630

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1880165A Expired GB1105266A (en) 1964-05-04 1965-05-04 Preparation of conjugated diene-containing copolymers

Country Status (2)

Country Link
DE (1) DE1570663A1 (en)
GB (1) GB1105266A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3962170A (en) 1973-10-30 1976-06-08 The Goodyear Tire & Rubber Company Flame resistant vinylidene chloride copolymer latices and articles made therefrom

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3962170A (en) 1973-10-30 1976-06-08 The Goodyear Tire & Rubber Company Flame resistant vinylidene chloride copolymer latices and articles made therefrom

Also Published As

Publication number Publication date
DE1570663A1 (en) 1970-02-26

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