GB1160299A - Polymerization of Vinyl Aromatic Compounds - Google Patents

Polymerization of Vinyl Aromatic Compounds

Info

Publication number
GB1160299A
GB1160299A GB5776266A GB5776266A GB1160299A GB 1160299 A GB1160299 A GB 1160299A GB 5776266 A GB5776266 A GB 5776266A GB 5776266 A GB5776266 A GB 5776266A GB 1160299 A GB1160299 A GB 1160299A
Authority
GB
United Kingdom
Prior art keywords
hours
aromatic compounds
vinyl aromatic
initiator
dec
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
GB5776266A
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.)
Dart Industries Inc
Original Assignee
Rexall Drug and 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 Rexall Drug and Chemical Co filed Critical Rexall Drug and Chemical Co
Publication of GB1160299A publication Critical patent/GB1160299A/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
    • C08F2/12—Polymerisation in non-solvents
    • C08F2/16—Aqueous medium

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)

Abstract

1,160,299. Suspension polymerization of vinyl aromatic compounds. REXALL DRUG & CHEMICAL CO. 23 Dec., 1966 [27 Dec., 1965], No. 57762/66. Heading C3P. Vinyl aromatic compounds, e.g. styrene, are polymerized by forming a suspension in water of the compound and heating at elevated temperatures in the presence of a minor amount of an initiator which comprises (a) an organic initiator which has a ¢ life of 20 hours or less at 85‹ C. and (b) tert.-butyl peracetate or tert.- butyl peroxy isopropyl carbonate. The (a) initiator may be benzoyl, caproyl, lauroyl, cyclohexanone or decanoyl peroxide; t-butyl peroctoate or azo-bis-isobutyronitrile. The heating may be carried out at 70-95‹ C. for 1-8 hours, then raised to 110-135‹ C. in a period of 1-3 hours and maintained at that temperature for 1-5 hours. Tri-calcium phosphate may be used as a suspending agent,
GB5776266A 1965-12-27 1966-12-23 Polymerization of Vinyl Aromatic Compounds Expired GB1160299A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US52740365A 1965-12-27 1965-12-27

Publications (1)

Publication Number Publication Date
GB1160299A true GB1160299A (en) 1969-08-06

Family

ID=24101321

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5776266A Expired GB1160299A (en) 1965-12-27 1966-12-23 Polymerization of Vinyl Aromatic Compounds

Country Status (2)

Country Link
DE (1) DE1645240A1 (en)
GB (1) GB1160299A (en)

Also Published As

Publication number Publication date
DE1645240A1 (en) 1970-04-23

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees