GB1441178A - Laminated film structure - Google Patents

Laminated film structure

Info

Publication number
GB1441178A
GB1441178A GB5802473A GB5802473A GB1441178A GB 1441178 A GB1441178 A GB 1441178A GB 5802473 A GB5802473 A GB 5802473A GB 5802473 A GB5802473 A GB 5802473A GB 1441178 A GB1441178 A GB 1441178A
Authority
GB
United Kingdom
Prior art keywords
parts
layer
weight
ethylene
polymer
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
GB5802473A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB1441178A publication Critical patent/GB1441178A/en
Expired legal-status Critical Current

Links

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
    • B32B27/06—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
    • B32B27/065—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 foam
    • 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
    • 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
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • 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
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
    • 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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • 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
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/025—Polyolefin
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/514—Oriented
    • B32B2307/516—Oriented mono-axially
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/514—Oriented
    • B32B2307/518—Oriented bi-axially
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/744—Non-slip, anti-slip
    • 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
    • B32B2323/043—HDPE, i.e. high 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
    • B32B2323/00—Polyalkenes
    • B32B2323/10—Polypropylene
    • 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
    • B32B2327/00—Polyvinylhalogenides

Landscapes

  • Laminated Bodies (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Molding Of Porous Articles (AREA)

Abstract

1441178 Laminates E I DU PONT DE NEMOURS & CO 14 Dec 1973 [15 Dec 1972] 58024/73 Heading B5N [Also in Division B2] A laminated film structure suitable for use in packaging comprises (A) a base layer of a biaxially stretched thermoplastic film of a cellular polymeric matrix prepared from a polymer having a crystallinity of at least 60% by weight at room temperature and selected from homopolymers, copolymers and blends thereof of α-olefins having 2-10 carbon atoms, and having dispersed therein an inert filler having an average particle size of 0À3-8 microns in an amount of 26-50% by weight based on the weight of the polymer and inert filler, the filled polymer having (a) an elongation of at least 1000% at a temperature within the range of above the line drawing temperature and below the melting temperature of the polymer, (b) 30-70% voids, (c) an elongation at break at 22‹ C. of at least 8% in each direction of stretch, (d) 2-40 surface ruptures per square millimetre, (e) a density of 0À3-0À7 g./cc. and (f) an oxygen permeability of 090-10,000,000 cc./100 sq. in./ 24 hrs./atmosphere/mil., and (B) a grease-proof layer, laminated to at least one side of the thermoplastic film base layer, the grease-proof layer being selected from (1) high density polyethylene of density 0À94-0À98 g./cc. at 25‹ C., (2) polypropylene having a crystallinity of at least 60% by weight and (3) ethylene-based ionomeric resin prepared by copolymerizing a mixture of ethylene and unsaturated monocarboxylic acid in the presence of a free radical polymerization initiator and bringing the copolymer into contact with an ionizable compound to effect crosslinking. The film laminate may also include at least one heatsealable layer suitably applied by coating and comprising, by weight (1) 60-70 parts ethylenevinyl acetate copolymer, 20-25 parts of a wax having a melting point of at least 60‹ C., 5-15 parts sodium-amminoum roteinates, 0À5- 5 parts ammonium proteinate, 1-10 parts polymerized rosin ester and 0À5-5 parts metal stearate, (2) 25-99% petroleum wax and 75-1% of a terpolymer of ethylene, a monomeric acid and a vinyl ester, alkyl acrylate or alkyl methacrylate, (3) an ethylene-based ionomeric resin or (4) a low density polyethylene of density 0À91-0À93 g./cc. at 25‹ C. The film laminate may also be coated on one or both sides with a layer of vinylidene chloride copolymer or layer of crystalline polypropylene containing a pigment. Grease-proof layer (B) may be uniaxially or biaxially oriented. The filler in base layer (A) may be inorganic, e.g. silica, calcium carbonate, diatomceous earth, titanium dioxide or clay or organic, e.g. polyesters or polyamides. Layers (A) and (B) may be bonded together with the use of an adhesive, electrical discharge or flame treatment or after extrusion.
GB5802473A 1972-12-15 1973-12-14 Laminated film structure Expired GB1441178A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US31556172A 1972-12-15 1972-12-15

Publications (1)

Publication Number Publication Date
GB1441178A true GB1441178A (en) 1976-06-30

Family

ID=23224994

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5802473A Expired GB1441178A (en) 1972-12-15 1973-12-14 Laminated film structure

Country Status (5)

Country Link
JP (1) JPS4989783A (en)
BE (1) BE808679A (en)
CA (1) CA998607A (en)
DE (1) DE2362299A1 (en)
GB (1) GB1441178A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0119703A1 (en) * 1983-02-07 1984-09-26 American Can Company Improved package for oil-containing products
EP0155595A2 (en) * 1984-03-15 1985-09-25 Hoechst Aktiengesellschaft Opaque sealable film with a backing layer of polypropylene containing solid particles
GB2262062A (en) * 1991-12-03 1993-06-09 Courtaulds Films & Packaging Biaxially oriented puncture resistant polymeric films

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4377616A (en) * 1981-12-30 1983-03-22 Mobil Oil Corporation Lustrous satin appearing, opaque film compositions and method of preparing same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1247641B (en) * 1963-12-24 1967-08-17 Union Carbide Corp Thermoplastic mixtures for the production of films

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0119703A1 (en) * 1983-02-07 1984-09-26 American Can Company Improved package for oil-containing products
EP0155595A2 (en) * 1984-03-15 1985-09-25 Hoechst Aktiengesellschaft Opaque sealable film with a backing layer of polypropylene containing solid particles
EP0155595A3 (en) * 1984-03-15 1987-03-25 Hoechst Aktiengesellschaft Opaque sealable film with a backing layer of polypropylene containing solid particles
GB2262062A (en) * 1991-12-03 1993-06-09 Courtaulds Films & Packaging Biaxially oriented puncture resistant polymeric films
US5318834A (en) * 1991-12-03 1994-06-07 Courtaulds Films (Holdings) Limited Polymeric films
GB2262062B (en) * 1991-12-03 1996-01-24 Courtaulds Films & Packaging Polymeric films

Also Published As

Publication number Publication date
JPS4989783A (en) 1974-08-27
DE2362299A1 (en) 1974-06-20
CA998607A (en) 1976-10-19
BE808679A (en) 1974-06-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee