FR2413408A1 - Thermostable ring-brominated polystyrene prodn. - using iron or ferric chloride as catalyst for bromination of polystyrene in chloro-hydrocarbon solvent - Google Patents

Thermostable ring-brominated polystyrene prodn. - using iron or ferric chloride as catalyst for bromination of polystyrene in chloro-hydrocarbon solvent

Info

Publication number
FR2413408A1
FR2413408A1 FR7836243A FR7836243A FR2413408A1 FR 2413408 A1 FR2413408 A1 FR 2413408A1 FR 7836243 A FR7836243 A FR 7836243A FR 7836243 A FR7836243 A FR 7836243A FR 2413408 A1 FR2413408 A1 FR 2413408A1
Authority
FR
France
Prior art keywords
polystyrene
prodn
catalyst
bromination
thermostable
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.)
Granted
Application number
FR7836243A
Other languages
French (fr)
Other versions
FR2413408B1 (en
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.)
Huels AG
Original Assignee
Chemische Werke Huels AG
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 Chemische Werke Huels AG filed Critical Chemische Werke Huels AG
Publication of FR2413408A1 publication Critical patent/FR2413408A1/en
Application granted granted Critical
Publication of FR2413408B1 publication Critical patent/FR2413408B1/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
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/18—Introducing halogen atoms or halogen-containing groups
    • C08F8/20—Halogenation
    • C08F8/22—Halogenation by reaction with free halogens

Landscapes

  • Chemical & Material Sciences (AREA)
  • General 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)

Abstract

In the prodn. of thermostable, ring-brominated polystyrenes (I) by bromination of polystyrene (II) dissolved in chlorohydrocarbons (III) at -20 degrees C to +40 degrees C in the presence of a Lewis acid catalyst, Fe or FeCl3 is used as catalyst. Pref. (II) has a mol. wt. of 50000-500000 and (III) is pref. CH2Cl2. After washing the reaction soln. with water, (I) is pref. pptd. with MeOH and sepd. (I) are specified for use in the prodn. of flame-retardant moulding compsns. They are also useful in paints. Heat-resistant prods. are obtd. without the use of special conditions or additives.
FR7836243A 1978-01-02 1978-12-22 PROCESS FOR PREPARING HEAT RESISTANT BROMINATED POLYSTYRENES ON THE CORE Expired FR2413408B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782800012 DE2800012B2 (en) 1978-01-02 1978-01-02 Process for the production of heat-resistant, core-brominated polystyrenes

Publications (2)

Publication Number Publication Date
FR2413408A1 true FR2413408A1 (en) 1979-07-27
FR2413408B1 FR2413408B1 (en) 1985-05-31

Family

ID=6028846

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7836243A Expired FR2413408B1 (en) 1978-01-02 1978-12-22 PROCESS FOR PREPARING HEAT RESISTANT BROMINATED POLYSTYRENES ON THE CORE

Country Status (2)

Country Link
DE (1) DE2800012B2 (en)
FR (1) FR2413408B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0149142A2 (en) * 1983-12-21 1985-07-24 BASF Aktiengesellschaft Process for the chlorination of polymers
WO2007076355A1 (en) * 2005-12-21 2007-07-05 Albemarle Corporation Preparation of brominated styrenic polymers or resins

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3061057D1 (en) * 1979-05-07 1982-12-16 Ciba Geigy Ag A process for the preparation of brominated products of polystyrene
US4352909A (en) 1980-08-20 1982-10-05 Ferro Corporation Process for the bromination of polystyrenes
US4879353A (en) * 1987-01-28 1989-11-07 Great Lakes Chemical Corporation Bromination of polystyrene using bromine as the reaction solvent
US4966946A (en) * 1990-02-02 1990-10-30 Great Lakes Chemical Corporation Block copolymer of polyalkylene and halogenated polystyrene

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1570398A1 (en) * 1951-01-28 1969-09-04 Kalk Chemische Fabrik Gmbh Process for the preparation of crosslinked copolymers containing nuclear halogenated styrene
DE2651435C3 (en) * 1976-11-11 1980-11-27 Basf Ag, 6700 Ludwigshafen Process for the preparation of brominated styrene polymerization products

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0149142A2 (en) * 1983-12-21 1985-07-24 BASF Aktiengesellschaft Process for the chlorination of polymers
EP0149142A3 (en) * 1983-12-21 1987-04-15 Basf Aktiengesellschaft Process for the chlorination of polymers
WO2007076355A1 (en) * 2005-12-21 2007-07-05 Albemarle Corporation Preparation of brominated styrenic polymers or resins
US7446153B2 (en) 2005-12-21 2008-11-04 Albemarle Corporation Preparation of brominated styrenic polymers or resins

Also Published As

Publication number Publication date
DE2800012C2 (en) 1987-06-25
FR2413408B1 (en) 1985-05-31
DE2800012B2 (en) 1981-08-13
DE2800012A1 (en) 1979-07-12

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