GB1172643A - Composite Propylene Polymer Films. - Google Patents

Composite Propylene Polymer Films.

Info

Publication number
GB1172643A
GB1172643A GB03232/68A GB1323268A GB1172643A GB 1172643 A GB1172643 A GB 1172643A GB 03232/68 A GB03232/68 A GB 03232/68A GB 1323268 A GB1323268 A GB 1323268A GB 1172643 A GB1172643 A GB 1172643A
Authority
GB
United Kingdom
Prior art keywords
propylene
copolymer
homopolymer
composite
density
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
GB03232/68A
Other languages
English (en)
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.)
Hercules LLC
Original Assignee
Hercules LLC
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 Hercules LLC filed Critical Hercules LLC
Publication of GB1172643A publication Critical patent/GB1172643A/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
    • B29C48/305—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
    • 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
    • B29C48/16—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Laminated Bodies (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
GB03232/68A 1967-03-24 1968-03-19 Composite Propylene Polymer Films. Expired GB1172643A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US62573467A 1967-03-24 1967-03-24

Publications (1)

Publication Number Publication Date
GB1172643A true GB1172643A (en) 1969-12-03

Family

ID=24507342

Family Applications (1)

Application Number Title Priority Date Filing Date
GB03232/68A Expired GB1172643A (en) 1967-03-24 1968-03-19 Composite Propylene Polymer Films.

Country Status (3)

Country Link
BE (1) BE712686A (enExample)
DE (1) DE1769027A1 (enExample)
GB (1) GB1172643A (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2387858A1 (fr) * 1977-04-18 1978-11-17 Signode Corp Ruban d'attache composite fusible
US4198256A (en) 1972-10-17 1980-04-15 British Cellophane Limited Method of making a heat-sealable oriented polypropylene film
US4235365A (en) 1977-04-15 1980-11-25 Toray Industries, Inc. Three-layered polypropylene films

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1452424A (en) * 1974-03-29 1976-10-13 Ici Ltd Composite films
DE3431364A1 (de) * 1984-08-25 1986-02-27 Alkor GmbH Kunststoffe, 8000 München Heisssiegelbare, flexible verbundfolie sowie verfahren zu deren herstellung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4198256A (en) 1972-10-17 1980-04-15 British Cellophane Limited Method of making a heat-sealable oriented polypropylene film
US4235365A (en) 1977-04-15 1980-11-25 Toray Industries, Inc. Three-layered polypropylene films
FR2387858A1 (fr) * 1977-04-18 1978-11-17 Signode Corp Ruban d'attache composite fusible

Also Published As

Publication number Publication date
DE1769027A1 (de) 1971-08-12
BE712686A (enExample) 1968-09-23

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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