GB482836A - Improvements in or relating to the manufacture of plates, sheets or other shaped or moulded articles - Google Patents

Improvements in or relating to the manufacture of plates, sheets or other shaped or moulded articles

Info

Publication number
GB482836A
GB482836A GB27042/36A GB2704236A GB482836A GB 482836 A GB482836 A GB 482836A GB 27042/36 A GB27042/36 A GB 27042/36A GB 2704236 A GB2704236 A GB 2704236A GB 482836 A GB482836 A GB 482836A
Authority
GB
United Kingdom
Prior art keywords
coated
plates
hot
produced
plate
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
GB27042/36A
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.)
Roehm and Haas GmbH
Original Assignee
Roehm and Haas GmbH
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 Roehm and Haas GmbH filed Critical Roehm and Haas GmbH
Publication of GB482836A publication Critical patent/GB482836A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/02Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber
    • B05D7/04Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber to surfaces of films or sheets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0254After-treatment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/12Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by mechanical means

Abstract

Raw shaped or moulded articles consisting essentially of one or more polyvinyl compounds are coated on one or more surfaces with a thin coating (such as produced by dipping or painting) comprising one or more monomeric or partially polymerized vinyl compounds and the applied coating is polymerized in contact with a mould or plate. Polyvinyl compounds specified are interpolymers or mixtures of polymers of (a) acrylic or methacrylic methyl, ethyl and butyl esters, or (b) styrene with vinyl acetate, acrylic nitrile, or both. The monomers or partial polymers applied may correspond to the polymer being coated. The moulds used may have highly polished surfaces, e.g. of metal or glass or be constructed of wood or plaster of Paris, and they may be lined with an adhesion-preventing coating, e.g. of gelatine, glycerine, soap, or regenerated cellulose or be powdered, e.g. with talcum. Polymerization may be caused by heat and pressure, e.g. by mechanical pressure or fluid pressure on all sides, applied to a mould disposed in an autoclave. There may be produced clear transparent plates, blocks, or moulded articles, e.g. lenticular screens, artificial parts of the body (e.g. for dental purposes) from polymeric bodies clouded or scratched on their surfaces. Pieces of the same or different polymers may be joined together, and plates produced with fabric or metal inserts. In examples: (1) rough plates cut from a block of poly-ethyl methacrylate are immersed in the corresponding monomer containing benzoyl peroxide and hot-pressed between glass plates; (2) a rough plate of an interpolymer of methyl methacrylate and butyl acrylate, cut from a block or produced by polymerization in a flat mould, is coated by pouring over it the corresponding mixture of monomers, and hot-pressed under a metal negative of a lenticular screen; (3) a plate of polymethyl methacrylate is coated with the corresponding monomer and hot-pressed under a second plate of the same material to form a single block suitable for use as a glass substitute; several plates may be united in this way; (4) a negative of a technical or artistic article is coated with a slightly polymerized mixture of methyl methacrylate, ethyl acrylate, and benzoyl peroxide, a rough positive made of the corresponding interpolymer laid therein and hot-pressed. Specification 433,540 is referred to.ALSO:Raw shaped or moulded articles consisting essentially of one or more polyvinyl compounds are coated on one or more surfaces with a thin coating (such as produced by dipping or painting) comprising one or more monomeric or partially polymerized vinyl compounds and the applied coating is polymerized in contact with a mould or plate. Polyvinyl compounds specified are interpolymers or mixtures of polymers of acrylic or methacrylic methyl, ethyl and butyl esters, of styrene with vinyl acetate, acrylic nitrile, or both. The monomers or partial polymers applied may correspond to the polymer being coated. The moulds used may have highly polished surfaces, e.g. of metal or glass or be constructed of wood or plaster of Paris, and they may be lined with an adhesion-preventing coating, e.g. of gelatine, glycerine, soap, or regenerated cellulose or be powdered, e.g. with talcum. Polymerization may be caused by heat and pressure, e.g. by mechanical pressure or fluid pressure on all sides, applied to a mould disposed in an autoclave. There may be produced clear transparent plates, blocks, or moulded articles, e.g. lenticular screens, artificial parts of the body (e.g. for dental purposes) from polymeric bodies clouded or scratched on their surfaces. Pieces of the same or different polymers may be joined together, and plates produced with fabric or metal inserts. In examples: (1) rough plates cut from a block of poly-ethyl methacrylate are immersed in the corresponding monomer containing benzoyl peroxide and hot-pressed between glass plates; (2) a rough plate of an interpolymer of methyl methacrylate and butyl acrylate, cut from a block or produced by polymerization in a flat mould, is coated by pouring over it the corresponding mixture of monomers, and hot-pressed under a metal negative of a lenticular screen; (3) a plate of polymethyl methacrylate is coated with the corresponding monomer and hot-pressed under a second plate of the same material to form a single block suitable for use as a glass substitute; several plates may be united in this way; (4) a negative of a technical or artistic article is coated with a slightly polymerized mixture of methyl methacrylate, ethyl acrylate, and benzoyl peroxide, a rough positive made of the corresponding interpolymer laid therein and hot-pressed. Specification 433,540, [Group IV], is referred to.
GB27042/36A 1935-10-05 1936-10-05 Improvements in or relating to the manufacture of plates, sheets or other shaped or moulded articles Expired GB482836A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE482836X 1935-10-05

Publications (1)

Publication Number Publication Date
GB482836A true GB482836A (en) 1938-04-05

Family

ID=6542889

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27042/36A Expired GB482836A (en) 1935-10-05 1936-10-05 Improvements in or relating to the manufacture of plates, sheets or other shaped or moulded articles

Country Status (1)

Country Link
GB (1) GB482836A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2423583A (en) * 1941-10-20 1947-07-08 Polaroid Corp Process of forming hard resinous surfaces on organic plastics, and product thereof
US2444532A (en) * 1946-03-07 1948-07-06 Polaroid Corp Method of manufacturing reflecting optical elements
US2444533A (en) * 1946-03-07 1948-07-06 Polaroid Corp Method of manufacturing reflecting optical elements
US2514076A (en) * 1940-07-10 1950-07-04 Myerson Tooth Corp Method of making teeth from synthetic resins by injection molding
US2640227A (en) * 1946-04-16 1953-06-02 Combined Optical Ind Ltd Production of lenses from transparent plastics
US2856306A (en) * 1957-03-04 1958-10-14 Eastman Kodak Co Cellulosic coatings for vinyl copolymers
US2920350A (en) * 1955-02-09 1960-01-12 Roehm & Haas Gmbh Process for the manufacture of thermoplastic articles having designs therein
US3050784A (en) * 1959-12-16 1962-08-28 Toscony Inc Method of making relatively thin vinyl films
US3462293A (en) * 1966-11-07 1969-08-19 Koppers Co Inc Coated expandable polystyrene
EP0000440A1 (en) * 1977-07-15 1979-01-24 Imperial Chemical Industries Plc Articles having polymethylmethacrylate surface regions and method for making such articles

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2514076A (en) * 1940-07-10 1950-07-04 Myerson Tooth Corp Method of making teeth from synthetic resins by injection molding
US2423583A (en) * 1941-10-20 1947-07-08 Polaroid Corp Process of forming hard resinous surfaces on organic plastics, and product thereof
US2444532A (en) * 1946-03-07 1948-07-06 Polaroid Corp Method of manufacturing reflecting optical elements
US2444533A (en) * 1946-03-07 1948-07-06 Polaroid Corp Method of manufacturing reflecting optical elements
US2640227A (en) * 1946-04-16 1953-06-02 Combined Optical Ind Ltd Production of lenses from transparent plastics
US2920350A (en) * 1955-02-09 1960-01-12 Roehm & Haas Gmbh Process for the manufacture of thermoplastic articles having designs therein
US2856306A (en) * 1957-03-04 1958-10-14 Eastman Kodak Co Cellulosic coatings for vinyl copolymers
US3050784A (en) * 1959-12-16 1962-08-28 Toscony Inc Method of making relatively thin vinyl films
US3462293A (en) * 1966-11-07 1969-08-19 Koppers Co Inc Coated expandable polystyrene
EP0000440A1 (en) * 1977-07-15 1979-01-24 Imperial Chemical Industries Plc Articles having polymethylmethacrylate surface regions and method for making such articles

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