GB1240733A - Method of making flexible sheet material - Google Patents

Method of making flexible sheet material

Info

Publication number
GB1240733A
GB1240733A GB3120368A GB3120368A GB1240733A GB 1240733 A GB1240733 A GB 1240733A GB 3120368 A GB3120368 A GB 3120368A GB 3120368 A GB3120368 A GB 3120368A GB 1240733 A GB1240733 A GB 1240733A
Authority
GB
United Kingdom
Prior art keywords
sheet
belts
foamed
platens
june
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
GB3120368A
Inventor
Jack Milner Lowe
Ralph Franklin Morris
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.)
Dunlop Holdings Ltd
Original Assignee
Dunlop Holdings 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 Dunlop Holdings Ltd filed Critical Dunlop Holdings Ltd
Priority to GB3120368A priority Critical patent/GB1240733A/en
Priority to DE19691930585 priority patent/DE1930585A1/en
Priority to FR6921724A priority patent/FR2014441A1/fr
Publication of GB1240733A publication Critical patent/GB1240733A/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
    • B29C44/56—After-treatment of articles, e.g. for altering the shape
    • B29C44/5627—After-treatment of articles, e.g. for altering the shape by mechanical deformation, e.g. crushing, embossing, stretching
    • B29C44/5636—After-treatment of articles, e.g. for altering the shape by mechanical deformation, e.g. crushing, embossing, stretching with the addition of heat
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
    • B29K2105/0809—Fabrics
    • 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
    • B29L2007/00—Flat articles, e.g. films or sheets
    • B29L2007/008—Wide strips, e.g. films, webs
    • 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
    • B29L2009/00—Layered products

Abstract

1,240,733. Flexible foamed sheet materials; laminates. DUNLOP HOLDINGS Ltd. 26 June, 1969 [29 June, 1968], No. 31203/68. Headings B5A and B5N. A sheet of cellular plastics material is compressed by positioning it between a pair of belts and passing the belt/sheet/belt assembly through a nip formed by a pair of platens, the narrowest part of the nip being smaller than the initial thickness of the assembly and the softening point of the sheet being greater than. the maximum temperature of compression. The belts are preferably made of pliable metal, e.g. stainless steel and one or both of the platens may be heated, preferably by internal heating either uniformly or with a temperature gradient. The plastics foam may be reticular polyurethane, a natural or synthetic rubber, poly- (vinyl-chloride), polyethylene, polypropylene or polystyrene. The process may be used to laminate two foam sheets with different properties, using either heat or an adhesive to bond the materials or may be used to bond a sheet of foamed plastics material to a knitted, woven or non-woven textile fibre layer or to a non-foamed sheet of an acrylic polymer, nylon or a polyurethane. As shown, a foamed sheet of depth B is located between belts 3, 4 and is compressed to thickness A by passage of the belts and sheet between plates 1 and 2.
GB3120368A 1968-06-29 1968-06-29 Method of making flexible sheet material Expired GB1240733A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB3120368A GB1240733A (en) 1968-06-29 1968-06-29 Method of making flexible sheet material
DE19691930585 DE1930585A1 (en) 1968-06-29 1969-06-16 Flexible sheet material and process for its manufacture
FR6921724A FR2014441A1 (en) 1968-06-29 1969-06-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3120368A GB1240733A (en) 1968-06-29 1968-06-29 Method of making flexible sheet material

Publications (1)

Publication Number Publication Date
GB1240733A true GB1240733A (en) 1971-07-28

Family

ID=10319556

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3120368A Expired GB1240733A (en) 1968-06-29 1968-06-29 Method of making flexible sheet material

Country Status (3)

Country Link
DE (1) DE1930585A1 (en)
FR (1) FR2014441A1 (en)
GB (1) GB1240733A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000471A (en) * 1977-06-30 1979-01-10 Freudenberg Carl Kg Wall panels
FR2451816A1 (en) * 1979-03-23 1980-10-17 Jouet Importation Cie Gle Plastic models and toys - of expanded polystyrene made abrasion resistant by expanded polyethylene foil coating
US4303721A (en) 1979-07-20 1981-12-01 W. R. Grace & Co. Closed cell foam printing blanket
US4903573A (en) * 1987-03-11 1990-02-27 Imperial Chemical Industries Plc Explosion suppression system and composition for use therein
WO2015094967A1 (en) * 2013-12-19 2015-06-25 Dow Global Technologies Llc Rigid thermoplastic foam densification process and composite structures incorporating the densified rigid thermoplastic foam

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7508821A (en) * 1975-07-24 1977-01-26 Lely Nv C Van Der SOIL WORKING MACHINE.
DE2935631A1 (en) * 1979-09-04 1981-04-16 Plate Bonn Gmbh, 5300 Bonn MULTILAYER PLASTIC FILM, METHOD FOR THE PRODUCTION AND USE THEREOF
ATE97852T1 (en) * 1989-04-20 1993-12-15 Mets Konstrukt COMPRESSION DEVICE.

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000471A (en) * 1977-06-30 1979-01-10 Freudenberg Carl Kg Wall panels
GB2000471B (en) * 1977-06-30 1982-01-27 Freudenberg Carl Kg Wall panels
FR2451816A1 (en) * 1979-03-23 1980-10-17 Jouet Importation Cie Gle Plastic models and toys - of expanded polystyrene made abrasion resistant by expanded polyethylene foil coating
US4303721A (en) 1979-07-20 1981-12-01 W. R. Grace & Co. Closed cell foam printing blanket
US4903573A (en) * 1987-03-11 1990-02-27 Imperial Chemical Industries Plc Explosion suppression system and composition for use therein
WO2015094967A1 (en) * 2013-12-19 2015-06-25 Dow Global Technologies Llc Rigid thermoplastic foam densification process and composite structures incorporating the densified rigid thermoplastic foam
US10201951B2 (en) 2013-12-19 2019-02-12 Dow Global Technologies Llc Rigid thermoplastic foam densification process and composite structures incorporating the densified rigid thermoplastic foam

Also Published As

Publication number Publication date
DE1930585A1 (en) 1970-01-08
FR2014441A1 (en) 1970-04-17

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