GB668267A - Improvements in or relating to wrapping or protecting material and method of making the same - Google Patents

Improvements in or relating to wrapping or protecting material and method of making the same

Info

Publication number
GB668267A
GB668267A GB21372/47A GB2137247A GB668267A GB 668267 A GB668267 A GB 668267A GB 21372/47 A GB21372/47 A GB 21372/47A GB 2137247 A GB2137247 A GB 2137247A GB 668267 A GB668267 A GB 668267A
Authority
GB
United Kingdom
Prior art keywords
film
foil
resin
coating
dryer
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
GB21372/47A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB668267A publication Critical patent/GB668267A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

668,267. Compound sheet material; coating webs. CHAVANNES, M. A. Aug. 6, 1947 [March 30, 1945], No. 21372/47. Class 140. A sheet-like, heat-sealable, moisture-vapourproof wrapping or protective material, capable of being freely flexed, folded and creased, includes two layers of self-sustainable, flexible, thermoplastic resinous film united with the two faces of a layer of metal foil, and a. layer of lightweight but coarse fabric adhesively bonded to the outer surface of one of the layers of film, one surface of the other layer of film being exposed and providing a heat-sealable surface for the sheet material. As shown, Fig. 1, aluminium, zinc, lead or tin foil 14 from a roll 15 is supported on a carrier web 10 and passed beneath a coating roller 12 where it receives a film of resinous coating material from a hopper 17. Scrim 20 is pressed on to the film by the weight of its own roll 19, and the material then passes through a dryer 21 after which it is wound in a roll 23. To avoid crinkling of the foil, the temperature in dryer 21 is a maximum prior to the setting of the film. A second coating of resin is then similarly applied to the other side of the foil, and the material is passed through the dryer 21 again. The final sheet, Fig. III, may include, in addition to the foil 25, resinous films 24, 26 and scrim 27, a coating 28 of pressure-sensitive adhesive, which may consist of a mixture of isobutylene and a hydrogenated rosin. The resin coating composition may comprise a copolymer of vinyl acetate and vinyl chloride with plasticizer and' an adhesive, e.g. an acrylic resin or synthetic rubber or a mixture thereof, or a vinyl resin of low molecular weight. The resins are carried in a solvent, or as a dispersion in a diluent, e.g. xylol or naphtha; in the latter case the film is subjected in the dryer, after removal of the diluent, to a temperature at which the resin will fuse. Each resinous layer may include metal flakes up to 10 per cent of the weight of the other solids. Instead of a vinyl copolymer, the resin films may be of nylon, polybutyral, polyethylene, polyisobutylene, or polystyrene. The scrim may be formed from cotton, rayon or glass fibre. A suitable adhesion between film and foil is such as will require a force of 1-5 lb. per inch width to strip the film from the foil. U.S.A. Specification 2,443,443 is referred to.
GB21372/47A 1945-03-30 1947-08-06 Improvements in or relating to wrapping or protecting material and method of making the same Expired GB668267A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US668267XA 1945-03-30 1945-03-30

Publications (1)

Publication Number Publication Date
GB668267A true GB668267A (en) 1952-03-12

Family

ID=22071960

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21372/47A Expired GB668267A (en) 1945-03-30 1947-08-06 Improvements in or relating to wrapping or protecting material and method of making the same

Country Status (2)

Country Link
FR (1) FR958456A (en)
GB (1) GB668267A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2759522A (en) * 1948-09-23 1956-08-21 Far Ex Corp Method of producing a light and heat radiation reflecting, fireproof material
US2858248A (en) * 1953-07-03 1958-10-28 Iii John V Hastings Laminated flexible sheet material
WO2007034004A1 (en) * 2005-09-22 2007-03-29 Bagmovil, S.L. Protective case

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2759522A (en) * 1948-09-23 1956-08-21 Far Ex Corp Method of producing a light and heat radiation reflecting, fireproof material
US2858248A (en) * 1953-07-03 1958-10-28 Iii John V Hastings Laminated flexible sheet material
WO2007034004A1 (en) * 2005-09-22 2007-03-29 Bagmovil, S.L. Protective case

Also Published As

Publication number Publication date
FR958456A (en) 1950-03-10

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