GB992537A - Polymerization process - Google Patents

Polymerization process

Info

Publication number
GB992537A
GB992537A GB4430/64A GB443064A GB992537A GB 992537 A GB992537 A GB 992537A GB 4430/64 A GB4430/64 A GB 4430/64A GB 443064 A GB443064 A GB 443064A GB 992537 A GB992537 A GB 992537A
Authority
GB
United Kingdom
Prior art keywords
reactor
butene
monomer
styrene
temperature
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
GB4430/64A
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.)
Dow Chemical Co
Original Assignee
Dow Chemical 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
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Publication of GB992537A publication Critical patent/GB992537A/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
    • C08F2/00—Processes of polymerisation
    • C08F2/04—Polymerisation in solution
    • C08F2/06—Organic solvent
    • 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
    • C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • 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
    • C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F110/04—Monomers containing three or four carbon atoms
    • C08F110/06—Propene

Abstract

A continuous process for solution polymerizing an olefinic compound of the formula CH2 = CHR, wherein R is hydrogen or an alkyl, aryl, cycloalkyl or haloaryl radical containing not more than 12 carbon atoms comprises polymerizing a stirred reaction mixture at a temperature just above the precipitation temperature of the polymer and controlling the monomer concentration in the reactor. Polymers exemplified are homopolymers of propylene, butene-1, n-pentene-1, 3-methyl-butene-1, and n-octene-1; copolymers of propylene with ethylene, styrene, butadiene, and vinyl cyclohexane; and copolymers of butene-1 with p-methyl styrene, and n-pentene-1 with p-chloro styrene. Catalysts exemplified are: the reaction product of titanium trichloride, aluminium triethyl, thiocresol and lithium triethanolamine; TiCl4 + Al(C2H5)3; TiCl3 + Al triisobutyl; ZrCl4 + Al(C2H5)3; ZrCl3 + Al tributyl; n-butyl Li; LiAl(C2H5)4; and TiCl4 + Ti metal. Many other monomers and catalysts are specified. Suitable solvents are xylene or mixed octanes. The polymers produced have a high isotactic content. The polymerization is effected in a reactor under isothermal and essentially adiabatic conditions. The temperature of the reactor is automatically controlled by simultaneously varying the monomer and solvent feed rates while maintaining the ratio of the two. The monomer concentration in the reactor is varied by adjusting the monomer/solvent feed ratio. A flow diagram is given.
GB4430/64A 1963-02-06 1964-02-03 Polymerization process Expired GB992537A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25659863A 1963-02-06 1963-02-06

Publications (1)

Publication Number Publication Date
GB992537A true GB992537A (en) 1965-05-19

Family

ID=22972841

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4430/64A Expired GB992537A (en) 1963-02-06 1964-02-03 Polymerization process

Country Status (4)

Country Link
BE (1) BE643455A (en)
DE (1) DE1495493A1 (en)
GB (1) GB992537A (en)
NL (1) NL6400976A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0519009A1 (en) * 1990-03-09 1992-12-23 Board Of Control Of Michigan Technological University Free-radical retrograde precipitation-polymerization process
WO2003059960A1 (en) * 2002-01-11 2003-07-24 National Starch And Chemical Investment Holding Corporation Free radical retrograde precipitation polymer dispersions
WO2020178010A1 (en) * 2019-03-04 2020-09-10 Borealis Ag Polymerization process

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0519009A1 (en) * 1990-03-09 1992-12-23 Board Of Control Of Michigan Technological University Free-radical retrograde precipitation-polymerization process
EP0519009A4 (en) * 1990-03-09 1993-08-04 Michigan Technological University Free-radical retrograde precipitation-polymerization process
WO2003059960A1 (en) * 2002-01-11 2003-07-24 National Starch And Chemical Investment Holding Corporation Free radical retrograde precipitation polymer dispersions
WO2020178010A1 (en) * 2019-03-04 2020-09-10 Borealis Ag Polymerization process

Also Published As

Publication number Publication date
BE643455A (en) 1964-08-06
DE1495493A1 (en) 1969-06-12
NL6400976A (en) 1964-08-07

Similar Documents

Publication Publication Date Title
US2846427A (en) Treatment of polymers
US3899477A (en) Polymerization of ethylene
US3324095A (en) Polymerization process
US2954367A (en) Process for the polymerization of vinyl hydrocarbons with a two-component catalyst system
US3491073A (en) Process for the polymerization of olefins
GB1174542A (en) Process for preparing Polyolefins
US3141862A (en) Graft copolymerization using boron alkyls in the presence of oxygen as catalysts
US3699190A (en) Method for preparing block copolymer
US2951066A (en) Three-component olefin polymerization catalyst containing an aluminum sesquihalide and a transition metal compound
US3769373A (en) Polymerisation of unsaturated hydrocarbons
US3773735A (en) Process for the manufacture of polyolefins
GB1063518A (en) Process for preparing rubbery polymers
GB992537A (en) Polymerization process
US3891611A (en) Process for polymerizing olefins
US3328366A (en) Polymerization of ethylene and an alpha-olefin in the presence of an alkyl aluminum halide, a vanadium compound and an organic compound containing sulfur, oxygen and a halogen
US3027360A (en) Polymerisation process
US3326870A (en) Copolymers of olefins and acrylonitrile and a process for producing the same
US3458598A (en) Process of preparing block copolypolymers from isobutylene polymers monomers
US3445443A (en) Process for the preparation of polyolefins with a transition metal halide-organo aluminum compound catalyst
Yamazaki et al. Kinetic studies of isoprene polymerization with several ziegler type catalysts
US3256259A (en) Polymers of reduced molecular weight
US3535297A (en) Polymerization of ethylene using supported activated chromyl chloride catalysts
US3642730A (en) Copolymers of olefine and n-unsaturated derivatives of carbazole
US3583958A (en) Process and catalyst for manufacture of olefincc polymers
GB1260420A (en) Olefine polymerization process and catalyst