GB1099313A - Improvements in cellular structural material and method - Google Patents

Improvements in cellular structural material and method

Info

Publication number
GB1099313A
GB1099313A GB1936365A GB1936365A GB1099313A GB 1099313 A GB1099313 A GB 1099313A GB 1936365 A GB1936365 A GB 1936365A GB 1936365 A GB1936365 A GB 1936365A GB 1099313 A GB1099313 A GB 1099313A
Authority
GB
United Kingdom
Prior art keywords
foamed
thermoplastic
cells
concurrently
foamable
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
GB1936365A
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.)
CHAMPION PAPER CO Ltd
Original Assignee
CHAMPION PAPER 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 CHAMPION PAPER CO Ltd filed Critical CHAMPION PAPER CO Ltd
Publication of GB1099313A publication Critical patent/GB1099313A/en
Expired 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
    • B29C44/35—Component parts; Details or accessories
    • B29C44/352—Means for giving the foam different characteristics in different directions
    • 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
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/206—Using expandable particles or beads as starting material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/20—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of plastics
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/20—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of plastics
    • E04C2/205—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of plastics of foamed plastics, or of plastics and foamed plastics, optionally reinforced

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)

Abstract

A cellular structure is produced by compressing a foamable thermoplastic material containing a fluid flowing agent, releasing the pressure in one direction whilst concurrently confining the material against expansion in the remaining directions and concurrently foaming the thermoplastic to form a structure with cells elongated in the direction of expansion and cooling the resulting cellular material to a rigid structure. The preferred thermollastic is polystyrene, suitably in the form of expandable beads. The material is generally foamed into a flat sheet with the opposed faces perpendicular to the direction of elongation of the cells. One form of apparatus for preparing such materials comprises a pair of webs between which foamable material is inserted. These webs then pass between endless belts in a heating and compression station, and subsequently between further endless belts which diverge, the width of the foamable material being kept constant meanwhile. The foamed material is then chilled. Alternatively, an extrusion apparatus, whose die has diverging walls in the exit nozzle area, may be used. In either case the webs between which the material is foamed may be stripped, e.g. if they are chromium or stainless steel, or may remain to form a laminate (see Division B5). The outer skins which form on the faces of the foamed sheet may be removed, and the remaining material may be used as a filler (see Division B1).ALSO:A cellular structure is produced by compressing a foamable thermoplastic material containing a fluid flowing agent, releasing the pressure in one direction whilst concurrently confining the material against expansion in the remaining directions and concurrently foaming the thermoplastic to form a structure with cells elongated in the direction of expansion and cooling the resulting cellular material to a rigid structure. The preferred thermoplastic is polystyrene, suitably in the form of expandable beads. The material is generally foamed into a flat sheet with the opposed faces perpendicular to the direction of elongation of the cells. The outer skins which form on the faces of the foamed sheet may be removed, and the remaining material may be used as a filter, since the foamed material comprises mostly individual closed cells extending the width of the sheet. Such a filter may be covered on one or both sides by porous tissue or cheesecloth.
GB1936365A 1964-05-11 1965-05-07 Improvements in cellular structural material and method Expired GB1099313A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US36632064A 1964-05-11 1964-05-11

Publications (1)

Publication Number Publication Date
GB1099313A true GB1099313A (en) 1968-01-17

Family

ID=23442537

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1936365A Expired GB1099313A (en) 1964-05-11 1965-05-07 Improvements in cellular structural material and method

Country Status (3)

Country Link
BE (1) BE663683A (en)
GB (1) GB1099313A (en)
NL (1) NL6505987A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7520559B2 (en) 2006-01-10 2009-04-21 Dow Global Technologies, Inc. Foams for vehicular energy absorbance
US7977396B2 (en) 2004-11-12 2011-07-12 Dow Global Technologies Llc Impact-absorbing members for dynamic impact applications
EP2348066A3 (en) * 2002-05-31 2014-08-13 Owens Corning Intellectual Capital, LLC Anisotropic polymer foam
CN113939402A (en) * 2019-07-26 2022-01-14 Sika技术股份公司 Expansion element

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2348066A3 (en) * 2002-05-31 2014-08-13 Owens Corning Intellectual Capital, LLC Anisotropic polymer foam
US7977396B2 (en) 2004-11-12 2011-07-12 Dow Global Technologies Llc Impact-absorbing members for dynamic impact applications
US7520559B2 (en) 2006-01-10 2009-04-21 Dow Global Technologies, Inc. Foams for vehicular energy absorbance
CN113939402A (en) * 2019-07-26 2022-01-14 Sika技术股份公司 Expansion element

Also Published As

Publication number Publication date
BE663683A (en) 1965-09-01
NL6505987A (en) 1965-11-12

Similar Documents

Publication Publication Date Title
US2872965A (en) Methods and apparatus for forming sandwiches of a foamed plastic layer interposed between webs of sheet material
GB1224699A (en) Improvements in or relating to a method and apparatus for continuously manufacturing foamed plastic profiles
GB1118371A (en) Thermoplastic foam sheet material and apparatus for the manufacture thereof
FR2305453A1 (en) PROCESS AND DEVICE FOR THE TRANSFORMATION INTO FOAM WITH PRE-EXPANSION OF PLASTICS, IN PARTICULAR FOR THE PRODUCTION OF POLYURETHANE FOAM
ES250614A1 (en) Improvements in or relating to extruded foamed polystyrene
GB1028450A (en) Webs of thermoplastic polymeric materials
ES337237A1 (en) Improvements in Heat Insulating Lagging Elements
GB1099313A (en) Improvements in cellular structural material and method
IL45234A (en) Apparatus for the continuous manufacture of foamed plasti
DK130636B (en) Method and apparatus for producing foamed thermoplastic profiles by extrusion through a perforated plate in a die.
GB1056399A (en) Polymer foams and their properties
DE3271589D1 (en) Pressurization and storage of thermoplastic resin foams prior to secondary expansion
FI82212C (en) ANORDNING OCH FOERFARANDE FOER FRAMSTAELLNING AV EN MULTI-CELL-SKUMPLASTSKIVA AV THERMOPLAST.
JPS5358569A (en) Foaming of thermal plastic material using sulfonyl tetrazole and sulfonyltetrazole
NL7709402A (en) METHOD AND EQUIPMENT FOR THE MANUFACTURE OF MOLDING PARTS, IN PARTICULAR BANDS FROM TUBES OF THERMOPLASTIC PLASTIC FOAM MATERIAL.
JPS53118405A (en) Foamable oil-in-water emulsified fats
GB1338314A (en) Plastics foam net materials
JPS5423670A (en) Production of hyghly foamed polyethylene
GB1391733A (en) Fabrication of three-dimensional reinforced thermal insulation block
GB1327232A (en) Rigid cellular core structures
GB952742A (en) Improvements in or relating to structural panels
NL150138B (en) PROCEDURE FOR INCLUDING AN INFLATING AGENT INTO THE CELLS OF A FOAMED POLYMER PRODUCT WITH CLOSED CELLS.
SE7904856L (en) PROCEDURE AND DEVICE FOR CONTINUOUS PREPARATION OF FOAM PLASTIC
JPS5476134A (en) Manufacture of speaker diaphragm
GB1130776A (en) Flameproofing of inflammable natural material or synthetic polymers