GB1231569A - - Google Patents

Info

Publication number
GB1231569A
GB1231569A GB1231569DA GB1231569A GB 1231569 A GB1231569 A GB 1231569A GB 1231569D A GB1231569D A GB 1231569DA GB 1231569 A GB1231569 A GB 1231569A
Authority
GB
United Kingdom
Prior art keywords
core layer
additive
polypropylene
layers
additives
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
Other languages
English (en)
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 filed Critical
Publication of GB1231569A publication Critical patent/GB1231569A/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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
    • 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
    • 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • 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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • B29C48/307—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets specially adapted for bringing together components, e.g. melts within the die

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
GB1231569D 1968-10-08 1969-09-25 Expired GB1231569A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US76598568A 1968-10-08 1968-10-08

Publications (1)

Publication Number Publication Date
GB1231569A true GB1231569A (enrdf_load_stackoverflow) 1971-05-12

Family

ID=25075058

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1231569D Expired GB1231569A (enrdf_load_stackoverflow) 1968-10-08 1969-09-25

Country Status (2)

Country Link
US (1) UST861034I4 (enrdf_load_stackoverflow)
GB (1) GB1231569A (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59133040A (ja) * 1982-12-04 1984-07-31 レ−ム・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング 中空室を有する多層のプラスチックウェブ板の製法
EP0444917A3 (en) * 1990-03-01 1992-03-04 W.R. Grace & Co.-Conn. Packaging film containing an additive
US5324467A (en) * 1989-09-22 1994-06-28 Hercules Incorporated Process for preparation of oriented multilayer laminate film
WO1995023571A1 (en) * 1994-03-01 1995-09-08 The Procter & Gamble Company Process for producing a surfactant treated, formed, polymeric web
AU734099B2 (en) * 1994-03-01 2001-06-07 Procter & Gamble Company, The Process for producing a surfactant treated, formed, polymeric web
US20110209760A1 (en) * 2007-10-04 2011-09-01 Antonio Bonucci Method for manufacturing photovoltaic panels by the use of a polymeric tri-layer comprising a composite getter system

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59133040A (ja) * 1982-12-04 1984-07-31 レ−ム・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング 中空室を有する多層のプラスチックウェブ板の製法
US5324467A (en) * 1989-09-22 1994-06-28 Hercules Incorporated Process for preparation of oriented multilayer laminate film
EP0444917A3 (en) * 1990-03-01 1992-03-04 W.R. Grace & Co.-Conn. Packaging film containing an additive
AU646013B2 (en) * 1990-03-01 1994-02-03 Cryovac, Inc. Packaging film containing an additive
US5306745A (en) * 1990-03-01 1994-04-26 W. R. Grace & Co.-Conn. Composition for a packaging film containing an additive
WO1995023571A1 (en) * 1994-03-01 1995-09-08 The Procter & Gamble Company Process for producing a surfactant treated, formed, polymeric web
US5520875A (en) * 1994-03-01 1996-05-28 The Procter & Gamble Company Process for producing a surfactant treated, formed, polymeric web
AU734099B2 (en) * 1994-03-01 2001-06-07 Procter & Gamble Company, The Process for producing a surfactant treated, formed, polymeric web
US20110209760A1 (en) * 2007-10-04 2011-09-01 Antonio Bonucci Method for manufacturing photovoltaic panels by the use of a polymeric tri-layer comprising a composite getter system
US9595626B2 (en) * 2007-10-04 2017-03-14 Saes Getters S.P.A. Method for manufacturing photovoltaic panels by the use of a polymeric tri-layer comprising a composite getter system

Also Published As

Publication number Publication date
UST861034I4 (en) 1969-04-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years