GB1286272A - Thermoformable acrylic sheet - Google Patents

Thermoformable acrylic sheet

Info

Publication number
GB1286272A
GB1286272A GB44487/69A GB4448769A GB1286272A GB 1286272 A GB1286272 A GB 1286272A GB 44487/69 A GB44487/69 A GB 44487/69A GB 4448769 A GB4448769 A GB 4448769A GB 1286272 A GB1286272 A GB 1286272A
Authority
GB
United Kingdom
Prior art keywords
polymer
weight
polymerized
sheet
methyl methacrylate
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
GB44487/69A
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.)
Rohm and Haas Co
Original Assignee
Rohm and Haas 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 Rohm and Haas Co filed Critical Rohm and Haas Co
Publication of GB1286272A publication Critical patent/GB1286272A/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
    • 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
    • C08F2/02—Polymerisation in bulk

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

1286272 Methyl methacrylate polymer sheet ROHM & HAAS CO 9 Sept 1969 [16 Sept 1968] 44487/69 Heading C3P Acrylic sheet is formed from a polymer containing at least 90% by weight of bulk polymerized methyl methacrylate, the polymer either being a linear polymer having an average molecular weight (determined by an intrinsic viscosity method) of 250,000 to 450,000, or being a slightly cross-lined polymer such that the sheet has a 30-second modulus (determined by a specified method) equivalent to the above molecular weight range, of 50-120 lb./sq. inch at 180‹ C. A preferred polymer contains 0-5% by weight of polymerized ethyl acrylate, 0-5% by weight of polymerized ethylthioethyl methacrylate, and 90-100% by weight of polymerized methyl methacrylate. If cross-linked the polymer may be bulk polymerized with up to 0À5% by weight of a polyethylenically unsaturated comonomer. The sheet may be formed by in situ bulk polymerization, or by another method such as casting in solution or extruding.
GB44487/69A 1968-09-16 1969-09-09 Thermoformable acrylic sheet Expired GB1286272A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US76006668A 1968-09-16 1968-09-16

Publications (1)

Publication Number Publication Date
GB1286272A true GB1286272A (en) 1972-08-23

Family

ID=25057992

Family Applications (1)

Application Number Title Priority Date Filing Date
GB44487/69A Expired GB1286272A (en) 1968-09-16 1969-09-09 Thermoformable acrylic sheet

Country Status (1)

Country Link
GB (1) GB1286272A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4113803A (en) 1972-06-02 1978-09-12 Imperial Chemical Industries Limited Acrylic sheet having improved thermoshaping properties
EP0154108A2 (en) * 1983-12-02 1985-09-11 VCF Packaging Films Inc. Solvent cast acrylic film
EP0650986A2 (en) * 1993-10-29 1995-05-03 Rohm And Haas Company Craze resistant transparent sheet
US9676938B2 (en) 2007-06-08 2017-06-13 Lucite International Uk Limited Polymer composition
EP2192154B1 (en) * 2005-04-25 2017-07-19 Lucite International UK Limited Acrylic blends

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4113803A (en) 1972-06-02 1978-09-12 Imperial Chemical Industries Limited Acrylic sheet having improved thermoshaping properties
EP0154108A2 (en) * 1983-12-02 1985-09-11 VCF Packaging Films Inc. Solvent cast acrylic film
EP0154108A3 (en) * 1983-12-02 1988-03-09 VCF Packaging Films Inc. Solvent cast acrylic film
EP0650986A2 (en) * 1993-10-29 1995-05-03 Rohm And Haas Company Craze resistant transparent sheet
EP0650986A3 (en) * 1993-10-29 1995-08-02 Rohm & Haas Craze resistant transparent sheet.
EP2192154B1 (en) * 2005-04-25 2017-07-19 Lucite International UK Limited Acrylic blends
EP2277946B1 (en) * 2005-04-25 2017-07-19 Lucite International UK Limited Acrylic blends
EP2192155B1 (en) * 2005-04-25 2018-02-28 Lucite International UK Limited Acrylic blends
EP1877486B2 (en) † 2005-04-25 2021-08-04 Lucite International UK Limited Acrylic blends
US9676938B2 (en) 2007-06-08 2017-06-13 Lucite International Uk Limited Polymer composition
US9944791B2 (en) 2007-06-08 2018-04-17 Lucite International Uk Ltd. Polymer composition

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee