GB721641A - Improvements in the polymerisation of methacrylic esters - Google Patents

Improvements in the polymerisation of methacrylic esters

Info

Publication number
GB721641A
GB721641A GB24510/52A GB2451052A GB721641A GB 721641 A GB721641 A GB 721641A GB 24510/52 A GB24510/52 A GB 24510/52A GB 2451052 A GB2451052 A GB 2451052A GB 721641 A GB721641 A GB 721641A
Authority
GB
United Kingdom
Prior art keywords
tert
methyl methacrylate
styrene
chlorostyrene
minor proportion
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
GB24510/52A
Inventor
Harold Jacob Stern
Lawrence Edward Shadbolt
Walter Louis Rawitzer
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.)
Dental Fillings Ltd
Original Assignee
Dental Fillings Ltd
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 Dental Fillings Ltd filed Critical Dental Fillings Ltd
Priority to GB24510/52A priority Critical patent/GB721641A/en
Priority to FR1088699D priority patent/FR1088699A/en
Publication of GB721641A publication Critical patent/GB721641A/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
    • C08F265/00—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
    • C08F265/04—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of esters
    • C08F265/06—Polymerisation of acrylate or methacrylate esters on to polymers thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K6/00—Preparations for dentistry
    • A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
    • A61K6/884—Preparations for artificial teeth, for filling teeth or for capping teeth comprising natural or synthetic resins
    • A61K6/887—Compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Chemical & Material Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Plastic & Reconstructive Surgery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polymerization Catalysts (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

Methyl methacrylate is bulk polymerized in the presence of methyl methacrylate polymer and, as catalyst, a mixture of a peroxide, such as benzoyl or lauroyl peroxide, at least a trace of a copper compound, such as copper oxide, sulphate, methacrylate, or oleate, and a mercaptide accelerator selected from zinc, cadmium, lead, bismuth, alkaline earth metal, and alkali metal salts or complexes formed with tertiary aliphatic mercaptans, such as tert.-dodecyl, tert.-hexdecyl, tert.-octyl, and tert.-butyl mercaptans. The monomeric methyl methacrylate may be employed in conjunction with a minor proportion of another polymerizable monomer such as methacrylic acid, acrylonitrile, vinylidene chloride, vinyl acetate, styrene, alpha-methyl styrene, and chlorostyrene, and may also contain a stabilizer such as hydroquinone. The polymer component may be a homopolymer of methyl methacrylate or a copolymer thereof with a minor proportion of another monomer, such as other methacrylic monomers, styrene, and chlorostyrene. The process may be used in the preparation of dental prostheses and fillings.
GB24510/52A 1952-09-30 1952-09-30 Improvements in the polymerisation of methacrylic esters Expired GB721641A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB24510/52A GB721641A (en) 1952-09-30 1952-09-30 Improvements in the polymerisation of methacrylic esters
FR1088699D FR1088699A (en) 1952-09-30 1953-09-28 Acrylic ester polymerization process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB24510/52A GB721641A (en) 1952-09-30 1952-09-30 Improvements in the polymerisation of methacrylic esters

Publications (1)

Publication Number Publication Date
GB721641A true GB721641A (en) 1955-01-12

Family

ID=10212790

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24510/52A Expired GB721641A (en) 1952-09-30 1952-09-30 Improvements in the polymerisation of methacrylic esters

Country Status (2)

Country Link
FR (1) FR1088699A (en)
GB (1) GB721641A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002077082A1 (en) * 2001-03-21 2002-10-03 Röhm GmbH & Co. KG Pmi syrup phases and their use for stabilizing non-soluble additives

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1272545C2 (en) * 1964-06-20 1976-07-01 Resart-Ihm Aktiengesellschaft, 6500 Mainz PROCESS FOR THE MANUFACTURING OF POLYMERIZATION PRODUCTS

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002077082A1 (en) * 2001-03-21 2002-10-03 Röhm GmbH & Co. KG Pmi syrup phases and their use for stabilizing non-soluble additives
AU2002249255B2 (en) * 2001-03-21 2006-08-17 Evonik Rohm Gmbh PMI syrup phases and their use for stabilizing non-soluble additives
US7247694B2 (en) 2001-03-21 2007-07-24 Röhm GmbH & Co. KG PMI syrup phases and their use for stabilizing insoluble additives

Also Published As

Publication number Publication date
FR1088699A (en) 1955-03-09

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