GB1202046A - Methyl methacrylate polymers for the production of artificial teeth - Google Patents

Methyl methacrylate polymers for the production of artificial teeth

Info

Publication number
GB1202046A
GB1202046A GB49994/69A GB4999469A GB1202046A GB 1202046 A GB1202046 A GB 1202046A GB 49994/69 A GB49994/69 A GB 49994/69A GB 4999469 A GB4999469 A GB 4999469A GB 1202046 A GB1202046 A GB 1202046A
Authority
GB
United Kingdom
Prior art keywords
methyl methacrylate
polymerization
artificial teeth
production
jan
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
GB49994/69A
Inventor
George Samuel Thurman
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.)
CMW LAB Ltd
Original Assignee
CMW LAB 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 CMW LAB Ltd filed Critical CMW LAB Ltd
Priority to GB49994/69A priority Critical patent/GB1202046A/en
Publication of GB1202046A publication Critical patent/GB1202046A/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
    • C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
    • C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
    • C08F20/10—Esters
    • C08F20/12—Esters of monohydric alcohols or phenols
    • C08F20/14—Methyl esters, e.g. methyl (meth)acrylate
    • 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
    • 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
    • C08F2/44—Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers

Abstract

1,202,046. Methyl methacrylate bead polymers. G.M.W. LABORATORIES Ltd. 3 Jan., 1968 [16 Jan., 1967], No. 49994/69. Divided out of 1,202,045. Heading C3P. Methyl methacrylate is polymerized in suspension in the presence of a refractory oxide to produce polymer beads suitable for use in the manufacture of abrasion-resistant artificial teeth. Refractory oxides specified are silica, zirconium oxide and calcined alumina. Polymerization is preferably effected in an aqueous medium which may contain a protective colloid such as gelatin, cellulose, sodium polymethacrylate or starch. If desired, a methyl mothacrylate monomer/polymer mixture can be used for the polymerization. Benzoyl peroxide is illustrated as a polymerization catalyst.
GB49994/69A 1967-01-16 1967-01-16 Methyl methacrylate polymers for the production of artificial teeth Expired GB1202046A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB49994/69A GB1202046A (en) 1967-01-16 1967-01-16 Methyl methacrylate polymers for the production of artificial teeth

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB49994/69A GB1202046A (en) 1967-01-16 1967-01-16 Methyl methacrylate polymers for the production of artificial teeth

Publications (1)

Publication Number Publication Date
GB1202046A true GB1202046A (en) 1970-08-12

Family

ID=10454259

Family Applications (1)

Application Number Title Priority Date Filing Date
GB49994/69A Expired GB1202046A (en) 1967-01-16 1967-01-16 Methyl methacrylate polymers for the production of artificial teeth

Country Status (1)

Country Link
GB (1) GB1202046A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0013491A1 (en) * 1979-01-05 1980-07-23 Imperial Chemical Industries Plc Dispersions of siliceous solids in liquid organic media
US4389507A (en) 1978-11-14 1983-06-21 Bayer Ag Filler-containing bead polymers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4389507A (en) 1978-11-14 1983-06-21 Bayer Ag Filler-containing bead polymers
EP0013491A1 (en) * 1979-01-05 1980-07-23 Imperial Chemical Industries Plc Dispersions of siliceous solids in liquid organic media
US4374937A (en) 1979-01-05 1983-02-22 Imperial Chemical Industries Limited Dispersions of siliceous solids in liquid organic media

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee