JPS5772830A - Foamed plate of styrene-based resin - Google Patents

Foamed plate of styrene-based resin

Info

Publication number
JPS5772830A
JPS5772830A JP55147578A JP14757880A JPS5772830A JP S5772830 A JPS5772830 A JP S5772830A JP 55147578 A JP55147578 A JP 55147578A JP 14757880 A JP14757880 A JP 14757880A JP S5772830 A JPS5772830 A JP S5772830A
Authority
JP
Japan
Prior art keywords
styrene
thickness
plate
ordinary
component selected
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.)
Granted
Application number
JP55147578A
Other languages
Japanese (ja)
Other versions
JPS6345936B2 (en
Inventor
Takao Kadota
Masahiko Sakata
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.)
Asahi Dow Ltd
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Dow Ltd
Asahi Chemical Industry Co 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 Asahi Dow Ltd, Asahi Chemical Industry Co Ltd filed Critical Asahi Dow Ltd
Priority to JP55147578A priority Critical patent/JPS5772830A/en
Publication of JPS5772830A publication Critical patent/JPS5772830A/en
Publication of JPS6345936B2 publication Critical patent/JPS6345936B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
    • B29C44/507—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying extruding the compound through an annular die
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/001—Tubular films, sleeves

Landscapes

  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To obtain an insulating material having a specific density of 60-200kg/ m<3> and a plate thickness of 2.5-7mm. by using a styrene-based copolymer resin which contains at least one component selected from specified acids and has a styrene content of 75-95wt% and a Vicat solftening point of not lower than 115 deg.C. CONSTITUTION:An ordinary organic foaming agent is mixed into a styrene-based copolymer resin containing at least one component selected from the group consisting of acrylic acid, methacrylic acid and maleic anhydride. The resin is extruded from an extrusion die 5 into the atmosphere at ordinary temperature and ordinary pressure, followed by inflation to simulaneously foam a parison and cool the outside surface thereof remakably. In the foamed plate 9 obtained through pinch rolls 8 the thickness T of a skin part and the thickness t of a cell film in a central part of the plate are in the relationship of :T/t>=2.5, and the flexure coefficient (p/y) according to JIS A-9511 is in the range of 1.5>=(p/y)>=0.2, where the definiton and determination conditions of the flexure coefficient (p/y) are as Formula.
JP55147578A 1980-10-23 1980-10-23 Foamed plate of styrene-based resin Granted JPS5772830A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55147578A JPS5772830A (en) 1980-10-23 1980-10-23 Foamed plate of styrene-based resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55147578A JPS5772830A (en) 1980-10-23 1980-10-23 Foamed plate of styrene-based resin

Publications (2)

Publication Number Publication Date
JPS5772830A true JPS5772830A (en) 1982-05-07
JPS6345936B2 JPS6345936B2 (en) 1988-09-13

Family

ID=15433519

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55147578A Granted JPS5772830A (en) 1980-10-23 1980-10-23 Foamed plate of styrene-based resin

Country Status (1)

Country Link
JP (1) JPS5772830A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58176226A (en) * 1982-03-29 1983-10-15 アモコ　コ−ポレ−シヨン Polystyrene foam
JPS6212440A (en) * 1985-07-09 1987-01-21 Japan Styrene Paper Co Ltd Backing for car molding head lining material
JPS6294539A (en) * 1985-10-09 1987-05-01 大日本インキ化学工業株式会社 Foaming food vessel
JPS62260839A (en) * 1986-05-08 1987-11-13 Mitsui Toatsu Chem Inc Heat-shrinkable expanded sheet and its production
JPS63108602A (en) * 1986-09-10 1988-05-13 ソーン　イーエムアイ　ピーエルシー Spot light
JPS63205223A (en) * 1987-02-20 1988-08-24 鐘淵化学工業株式会社 Laminated foam sheet for molding
JPH01188537A (en) * 1988-01-23 1989-07-27 Kanegafuchi Chem Ind Co Ltd Expanded heat-resistant styrene based resin sheet
WO2001040363A1 (en) * 1999-11-30 2001-06-07 Owens Corning Extruded polystyrene foam with vicat temperature over 100 °c
JP2021059652A (en) * 2019-10-04 2021-04-15 リスパック株式会社 Polystyrene resin foam sheet and container

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS495749A (en) * 1972-05-08 1974-01-18
JPS5332514A (en) * 1976-09-02 1978-03-27 Stamper Richard William Resilient trim panel for vehicle
JPS5542887A (en) * 1978-09-25 1980-03-26 Denki Kagaku Kogyo Kk Preparation of compound plate
JPS55117975U (en) * 1979-02-14 1980-08-20

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS495749A (en) * 1972-05-08 1974-01-18
JPS5332514A (en) * 1976-09-02 1978-03-27 Stamper Richard William Resilient trim panel for vehicle
JPS5542887A (en) * 1978-09-25 1980-03-26 Denki Kagaku Kogyo Kk Preparation of compound plate
JPS55117975U (en) * 1979-02-14 1980-08-20

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58176226A (en) * 1982-03-29 1983-10-15 アモコ　コ−ポレ−シヨン Polystyrene foam
JPS6212440A (en) * 1985-07-09 1987-01-21 Japan Styrene Paper Co Ltd Backing for car molding head lining material
JPS6294539A (en) * 1985-10-09 1987-05-01 大日本インキ化学工業株式会社 Foaming food vessel
JPH0422782B2 (en) * 1985-10-09 1992-04-20 Dainippon Inki Kagaku Kogyo Kk
JPH0689167B2 (en) * 1986-05-08 1994-11-09 三井東圧化学株式会社 Heat shrinkable foam sheet and method for producing the same
JPS62260839A (en) * 1986-05-08 1987-11-13 Mitsui Toatsu Chem Inc Heat-shrinkable expanded sheet and its production
JPS63108602A (en) * 1986-09-10 1988-05-13 ソーン　イーエムアイ　ピーエルシー Spot light
JPS63205223A (en) * 1987-02-20 1988-08-24 鐘淵化学工業株式会社 Laminated foam sheet for molding
JPH053827B2 (en) * 1987-02-20 1993-01-18 Kanegafuchi Chemical Ind
JPH01188537A (en) * 1988-01-23 1989-07-27 Kanegafuchi Chem Ind Co Ltd Expanded heat-resistant styrene based resin sheet
JPH0579251B2 (en) * 1988-01-23 1993-11-01 Kanegafuchi Chemical Ind
WO2001040363A1 (en) * 1999-11-30 2001-06-07 Owens Corning Extruded polystyrene foam with vicat temperature over 100 °c
JP2021059652A (en) * 2019-10-04 2021-04-15 リスパック株式会社 Polystyrene resin foam sheet and container

Also Published As

Publication number Publication date
JPS6345936B2 (en) 1988-09-13

Similar Documents

Publication Publication Date Title
US5453454A (en) Production of foam boards of high compressive strength from styrene polymers
US4510031A (en) Heat-foamable olefinic resin composition and process for production of olefinic resin foam from said composition
EP0287826B1 (en) Process for producing foamed thermoplastic resin articles
US4636527A (en) Method for the preparation of styrene polymer foam and foam prepared thereby
CA2046127A1 (en) Production of foam sheets of high compressive strength
JPS5772830A (en) Foamed plate of styrene-based resin
ES250614A1 (en) Improvements in or relating to extruded foamed polystyrene
KR890700630A (en) Method for Extruding Alkenyl Aromatic Resin Foams with Enclosed Bubbles
CA2344338A1 (en) Process for producing extruded foam with co2 as a blowing agent
JPH0525312A (en) Preparation of foam of styrene polymer
JPS5665342A (en) Electrostatic capacity type recording medium for information signal
US4260572A (en) Process for producing foamed polystyrene boards
JPS57191027A (en) Manufacture of bridged polyolefin continuous foamed material
US5071703A (en) Foam sheets of high heat distortion resistance
JPS6259640A (en) Foaming of butyral resin composition
US4532265A (en) Alkenyl aromatic monomer olefinically unsaturated acid foams and method for the preparation thereof
US4840976A (en) Production of closed-celled foams of high compressive strength
JPS56121739A (en) Manufacture of cross-linked polyolefin continuous foamed body
JPH0596673A (en) Polystyrene resin laminated sheet and its manufacture
JPS5571727A (en) Foamable vinyl chloride resin composition
JPS57126628A (en) Styrene resin sheet for forming
US4535094A (en) Alkenyl aromatic monomer olefinically unsaturated acid foams and method for the preparation thereof
JPH07165969A (en) Production of styrenic resin expanded sheet
EP0176042B1 (en) Foams of ionically associated blends of styrenic and ethylenic polymers
US4722972A (en) Foams of ionically associated blends of styrenic and ethylenic polymers