GB1318521A - Production of sheeting of polymers or copolymers of vinyl chloride - Google Patents

Production of sheeting of polymers or copolymers of vinyl chloride

Info

Publication number
GB1318521A
GB1318521A GB2057769A GB1318521DA GB1318521A GB 1318521 A GB1318521 A GB 1318521A GB 2057769 A GB2057769 A GB 2057769A GB 1318521D A GB1318521D A GB 1318521DA GB 1318521 A GB1318521 A GB 1318521A
Authority
GB
United Kingdom
Prior art keywords
layer
vinyl chloride
surface layer
filler
sheet
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
GB2057769A
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.)
Storey Brothers and Co Ltd
Original Assignee
Storey Brothers and 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 Storey Brothers and Co Ltd filed Critical Storey Brothers and Co Ltd
Publication of GB1318521A publication Critical patent/GB1318521A/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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • B29C48/9145—Endless cooling belts
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Laminated Bodies (AREA)
  • Moulding By Coating Moulds (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

1318521 Coated sheet materials STOREY BROS & CO Ltd 14 April 1970 [22 April 1969] 20577/69 Heading B2E [Also in Division B5] A PVC sheet, suitable for vacuum or blow forming into an article having a uniform rather than patchy appearance, has a surface layer including a particulate filler. The surface layer may be made from a solution or emulsion of an acrylic or methacrylic resin, a non- plasticised high molecular weight vinyl chloride polymer or copolymer, a cellulose derivative or mixtures thereof. A preferred material is a mixture of acrylic and methacrylic resins with a copolymer of vinyl chloride and vinyl acetate. The filler is preferably a particulate silica material. In the preferred embodiment a layer of the above preferred surface layer material including a silica filler is doctor bladed at 16 onto a release coated embossed band or paper 10, the layer being dried by passage under a hood 18. A layer 19 of non- foaming PVC is then applied by blade 22 and a layer 23 of foaming PVC by a reverse coating roller 25, the layers being fused, bonded and foamed by passage under a heater 26. Finally the band is stripped from the sheet thus formed.
GB2057769A 1969-04-22 1969-04-22 Production of sheeting of polymers or copolymers of vinyl chloride Expired GB1318521A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2057769 1969-04-22

Publications (1)

Publication Number Publication Date
GB1318521A true GB1318521A (en) 1973-05-31

Family

ID=10148212

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2057769A Expired GB1318521A (en) 1969-04-22 1969-04-22 Production of sheeting of polymers or copolymers of vinyl chloride

Country Status (6)

Country Link
AU (1) AU1394470A (en)
DE (1) DE2019136A1 (en)
FR (1) FR2039354A7 (en)
GB (1) GB1318521A (en)
NL (1) NL7005477A (en)
ZA (1) ZA702435B (en)

Also Published As

Publication number Publication date
NL7005477A (en) 1970-10-26
AU1394470A (en) 1971-10-21
ZA702435B (en) 1971-01-27
DE2019136A1 (en) 1970-10-29
FR2039354A7 (en) 1971-01-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees