AU6581380A

AU6581380A – Three layer film having a core layer of low pressure, low density polyethylene
– Google Patents

AU6581380A – Three layer film having a core layer of low pressure, low density polyethylene
– Google Patents
Three layer film having a core layer of low pressure, low density polyethylene

Info

Publication number
AU6581380A

AU6581380A
AU65813/80A
AU6581380A
AU6581380A
AU 6581380 A
AU6581380 A
AU 6581380A
AU 65813/80 A
AU65813/80 A
AU 65813/80A
AU 6581380 A
AU6581380 A
AU 6581380A
AU 6581380 A
AU6581380 A
AU 6581380A
Authority
AU
Australia
Prior art keywords
density polyethylene
layer
low pressure
low density
core layer
Prior art date
1979-12-28
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.)

Granted

Application number
AU65813/80A
Other versions

AU539616B2
(en

Inventor
John Anthony
William Allen Fraser
Jerome Thomas Horner
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.)

Union Carbide Corp

Original Assignee
Union Carbide Corp
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.)
1979-12-28
Filing date
1980-12-23
Publication date
1981-07-02
Family has litigation

First worldwide family litigation filed
litigation
Critical
https://patents.darts-ip.com/?family=22321286&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AU6581380(A)
«Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1980-12-23
Application filed by Union Carbide Corp
filed
Critical
Union Carbide Corp

1981-07-02
Publication of AU6581380A
publication
Critical
patent/AU6581380A/en

1984-10-11
Application granted
granted
Critical

1984-10-11
Publication of AU539616B2
publication
Critical
patent/AU539616B2/en

2000-12-23
Anticipated expiration
legal-status
Critical

Status
Ceased
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

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

B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins

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

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

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

B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material

B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin

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

B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins

B32B27/322—Layered products comprising a layer of synthetic resin comprising polyolefins comprising halogenated polyolefins, e.g. PTFE

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

B32B2323/00—Polyalkenes

B32B2323/04—Polyethylene

B32B2323/046—LDPE, i.e. low density polyethylene

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

B32B2439/00—Containers; Receptacles

AU65813/80A
1979-12-28
1980-12-23
Three layer film having a core layer of low pressure, low density polyethylene

Ceased

AU539616B2
(en)

Applications Claiming Priority (2)

Application Number
Priority Date
Filing Date
Title

US10828179A

1979-12-28
1979-12-28

US108281

1979-12-28

Publications (2)

Publication Number
Publication Date

AU6581380A
true

AU6581380A
(en)

1981-07-02

AU539616B2

AU539616B2
(en)

1984-10-11

Family
ID=22321286
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

AU65813/80A
Ceased

AU539616B2
(en)

1979-12-28
1980-12-23
Three layer film having a core layer of low pressure, low density polyethylene

Country Status (9)

Country
Link

EP
(1)

EP0032629B1
(en)

JP
(1)

JPS56101850A
(en)

AR
(1)

AR221670A1
(en)

AU
(1)

AU539616B2
(en)

BR
(1)

BR8008423A
(en)

CA
(1)

CA1156415A
(en)

DE
(1)

DE3066117D1
(en)

NZ
(1)

NZ195968A
(en)

ZA
(1)

ZA807998B
(en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US4364981A
(en)

*

1979-12-28
1982-12-21
Union Carbide Corporation
Three layer film having a core layer of low pressure, low density polyethylene

JPS57126332U
(en)

*

1981-01-30
1982-08-06

US4444828A
(en)

*

1982-01-28
1984-04-24
Union Carbide Corporation
Multilayer trash bag film

NL8502190A
(en)

*

1985-08-06
1987-03-02
Stamicarbon

METHOD FOR MANUFACTURING BLADDER FOIL AND ORIENTED FOIL

NL8502191A
(en)

*

1985-08-06
1987-03-02
Stamicarbon

METHOD FOR PRODUCING FLAT FILM.

US5019315A
(en)

*

1988-10-25
1991-05-28
Mobil Oil Corporation
Preparing multi-layer coextruded polyolefin stretch wrap films

GB2283699B
(en)

*

1993-11-15
1998-01-14
United Biscuits Ltd
Improvements in and relating to the production of food products

WO2000056635A1
(en)

*

1999-03-23
2000-09-28
Reynolds Consumer Products, Inc.
An elastic disposable bag

NL1025903C2
(en)

*

2004-04-08
2005-10-11
Wavin Bv

Multilayer tube from thermoplastic plastic and method for obtaining it.

Family Cites Families (9)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

GB1112093A
(en)

*

1965-06-17
1968-05-01
Eastman Kodak Co
Polyethylene blends

GB1205327A
(en)

*

1967-01-31
1970-09-16
Mitsubishi Petrochemical Co
Process for the production of laminates

US3624037A
(en)

*

1969-03-25
1971-11-30
Th Goldschmit Ag
Process of curing aminoplasts

US3673050A
(en)

*

1970-02-05
1972-06-27
Dow Chemical Co
A laminate of a barrier layer enclosed in rigid high density polyolefin layers

US4011382A
(en)

*

1975-03-10
1977-03-08
Union Carbide Corporation
Preparation of low and medium density ethylene polymer in fluid bed reactor

US4187269A
(en)

*

1975-11-17
1980-02-05
The Dow Chemical Company
Extrusion process for reducing melt fracture

US4080138A
(en)

*

1975-11-17
1978-03-21
The Dow Chemical Company
Extrusion process and apparatus

US4151318A
(en)

*

1976-06-21
1979-04-24
Mobil Oil Corporation
Laminar thermoplastic film constructions

CA1157216A
(en)

*

1978-09-15
1983-11-22
William F. Briggs
Coextruded thermoplastic stretch-wrap

1980

1980-12-19
CA
CA000367231A
patent/CA1156415A/en
not_active
Expired

1980-12-22
BR
BR8008423A
patent/BR8008423A/en
unknown

1980-12-22
ZA
ZA00807998A
patent/ZA807998B/en
unknown

1980-12-23
DE
DE8080304690T
patent/DE3066117D1/en
not_active
Expired

1980-12-23
JP
JP18271480A
patent/JPS56101850A/en
active
Pending

1980-12-23
AU
AU65813/80A
patent/AU539616B2/en
not_active
Ceased

1980-12-23
EP
EP80304690A
patent/EP0032629B1/en
not_active
Expired

1980-12-28
AR
AR283799A
patent/AR221670A1/en
active

1981

1981-01-06
NZ
NZ195968A
patent/NZ195968A/en
unknown

Also Published As

Publication number
Publication date

BR8008423A
(en)

1981-07-14

JPS56101850A
(en)

1981-08-14

NZ195968A
(en)

1983-04-12

DE3066117D1
(en)

1984-02-16

CA1156415A
(en)

1983-11-08

AU539616B2
(en)

1984-10-11

EP0032629B1
(en)

1984-01-11

EP0032629A1
(en)

1981-07-29

ZA807998B
(en)

1982-01-27

AR221670A1
(en)

1981-02-27

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