JPS57129727A - Heat-insulating, light synthetic resin foam plate - Google Patents

Heat-insulating, light synthetic resin foam plate

Info

Publication number
JPS57129727A
JPS57129727A JP56014920A JP1492081A JPS57129727A JP S57129727 A JPS57129727 A JP S57129727A JP 56014920 A JP56014920 A JP 56014920A JP 1492081 A JP1492081 A JP 1492081A JP S57129727 A JPS57129727 A JP S57129727A
Authority
JP
Japan
Prior art keywords
foam plate
synthetic resin
cells
resin foam
light
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
JP56014920A
Other languages
Japanese (ja)
Other versions
JPH0118850B2 (en
Inventor
Takao Kadota
Noboru Takeda
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 JP56014920A priority Critical patent/JPS57129727A/en
Publication of JPS57129727A publication Critical patent/JPS57129727A/en
Publication of JPH0118850B2 publication Critical patent/JPH0118850B2/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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molding Of Porous Articles (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

PURPOSE:To obtain a synthetic resin foam plate having a heat insulating property, a light transmissivity, and mechanical characteristics, as well as a specifically expanded featre in which closed cells are so distributed in a specific condition and the closed cellular membrances are so exposed to the open air that water absorbability and density are characterized. CONSTITUTION:A synthetic resin foam plate in which the membrances of closed ceels are exposed to the surface has a surface condition showing a water absorbability of 2wt% or less(by ASTM C272) and a density of 100-500. Also, in the synthetic resin foam plate, 2-10 cells of dimensions and a shape which meet the average diameter value(H or P) of cells of 7mm. or more, measured in the crosswise or the veritcal direction of the foam plate, and also meet the relationships 3>=P/H>=1/3 and (P+H/2V)>=2(V is the average diameter value (mm.) of cells, measured in the thickwise direction of the foam plate), are arranged in the thickwise direction of the synthetic resin foam plate. Also, in the planar direction of the plate, the cells almost uniformly distributed under a condition that overall light tranmissvity of 40% or more, measured by ASTM-D1003, and a light diffusion transmissvity exceeds a light parallel transmissivity.
JP56014920A 1981-02-05 1981-02-05 Heat-insulating, light synthetic resin foam plate Granted JPS57129727A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56014920A JPS57129727A (en) 1981-02-05 1981-02-05 Heat-insulating, light synthetic resin foam plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56014920A JPS57129727A (en) 1981-02-05 1981-02-05 Heat-insulating, light synthetic resin foam plate

Publications (2)

Publication Number Publication Date
JPS57129727A true JPS57129727A (en) 1982-08-11
JPH0118850B2 JPH0118850B2 (en) 1989-04-07

Family

ID=11874392

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56014920A Granted JPS57129727A (en) 1981-02-05 1981-02-05 Heat-insulating, light synthetic resin foam plate

Country Status (1)

Country Link
JP (1) JPS57129727A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013203984A (en) * 2012-03-29 2013-10-07 Sekisui Plastics Co Ltd Acrylic resin foam and method for producing the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4847574A (en) * 1971-10-16 1973-07-06
JPS53162165U (en) * 1977-05-25 1978-12-19

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4847574A (en) * 1971-10-16 1973-07-06
JPS53162165U (en) * 1977-05-25 1978-12-19

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013203984A (en) * 2012-03-29 2013-10-07 Sekisui Plastics Co Ltd Acrylic resin foam and method for producing the same

Also Published As

Publication number Publication date
JPH0118850B2 (en) 1989-04-07

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