NL6408518A - - Google Patents

Info

Publication number
NL6408518A
NL6408518A NL6408518A NL6408518A NL6408518A NL 6408518 A NL6408518 A NL 6408518A NL 6408518 A NL6408518 A NL 6408518A NL 6408518 A NL6408518 A NL 6408518A NL 6408518 A NL6408518 A NL 6408518A
Authority
NL
Netherlands
Prior art keywords
woven
foam
bonded
sheet
copolymers
Prior art date
Application number
NL6408518A
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 NL6408518A publication Critical patent/NL6408518A/xx

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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/56—After-treatment of articles, e.g. for altering the shape
    • B29C44/5627—After-treatment of articles, e.g. for altering the shape by mechanical deformation, e.g. crushing, embossing, stretching
    • B29C44/5636—After-treatment of articles, e.g. for altering the shape by mechanical deformation, e.g. crushing, embossing, stretching with the addition of heat
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/02—Uppers; Boot legs
    • A43B23/0205—Uppers; Boot legs characterised by the material
    • A43B23/0215—Plastics or artificial leather
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/02—Uppers; Boot legs
    • A43B23/04—Uppers made of one piece; Uppers with inserted gussets
    • A43B23/042—Uppers made of one piece
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/56—After-treatment of articles, e.g. for altering the shape
    • B29C44/5627—After-treatment of articles, e.g. for altering the shape by mechanical deformation, e.g. crushing, embossing, stretching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
    • B29K2105/0809—Fabrics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/48—Wearing apparel
    • B29L2031/4807—Headwear
    • B29L2031/4814—Hats

Abstract

Articles, e.g. sheets, hollow hemispheres, shoe uppers, or hats, are made from open celled foam polyurethane by stretching a sheet of the material to an increase in area of at least 5% to orient the crystals therein compressing the stretched material under a pressure of at least 5 pounds per sq. inch while heating the material to at least 50 DEG C., maintaining said heat and pressure for up to ten minutes and finally recovering the resultant porous article. The increase in area is preferably at least 25% and the decrease in thickness preferably at least 75%. The foam material may incorporate a woven or non-woven fabric which may be bonded thereto by heat or a suitable binder or several layers of foam may be bonded and used. The material may be stretched monoaxially (Figs. 1-3, not shown) or biaxially (Figs. 4a-4c, not shown) prior to compression. Suitable backing fabrics are woven or nonwoven nylon, woven "Dacron" (Registered Trade Mark), "Dynel" (Registered Trade-Mark) or cotton and suitable binders are vinyl chloride homopolymers and copolymers with vinyl acetate, per se or as a latex; alkyl acrylate and/or methacrylate (e.g. methyl, ethyl 2-ethylhexyl, acrylate or methacrylate) polymers and copolymers with vinyl acetate, vinylchloride or acrylamide, per se or as a latex; alkyl resin; polyethylacrylate-butylacrylate copolymers; or polybutadiene/styrene latex rubber copolymers.ALSO:Shoe uppers, or hats, are made from open celled foam polyurethane by stretching a sheet of the material to an increase in area of at least 5% to orient the crystals therein compressing the stretched material under a pressure of at least 5 pounds per sq. inch while heating the material to at least 50 DEG C., maintaining said heat and pressure for up to ten minutes and finally recovering the resultant porous article. The increase in area is preferably at least 25% and the decrease in thickness preferably at least 75%. The foam material may incorporate a woven or non-woven fabric which may be bonded thereto by heat or a suitable binder or several layers of foam may be bonded and used. The material may be stretched monoaxially or biaxially prior to compression. To form a shoe upper, Fig. 9 not shown, a sheet (18) of foam material, optionally covered by a sheet (19) of woven fabric, is clamped over a female mould cavity (20) by a ring (22) and drawn into the cavity and subsequently compressed by a ram (21). A hat may be similarly made. A patterned mould may be used to provide a decorative finish on the article. After moulding, a foot opening is cut in the upper which is stitched or cemented to an insole in known ways. Suitable backing fabrics are woven or non-woven nylon, woven "Dacron" (Registered Trade Mark), "Dynel" (Registered Trade Mark) or non-woven cotton.
NL6408518A 1963-07-26 1964-07-24 NL6408518A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US29780063A 1963-07-26 1963-07-26

Publications (1)

Publication Number Publication Date
NL6408518A true NL6408518A (en) 1965-01-27

Family

ID=23147798

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6408518A NL6408518A (en) 1963-07-26 1964-07-24

Country Status (3)

Country Link
CH (1) CH426250A (en)
GB (1) GB1071824A (en)
NL (1) NL6408518A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8514674D0 (en) * 1985-06-11 1985-07-10 Leigh H W Flexible foams
GB8520657D0 (en) * 1985-08-17 1985-09-25 Ac Scotland Plc Panel
GB2286104B (en) * 1990-04-09 1996-12-18 Michael Andrew Swailes Thermoformed hanging basket liner
US6558784B1 (en) * 1999-03-02 2003-05-06 Adc Composites, Llc Composite footwear upper and method of manufacturing a composite footwear upper
IT1399821B1 (en) * 2010-03-23 2013-05-03 G & G Aequam S R L METHOD FOR THERMOFORMING A THERMOFORMABLE MATERIAL SHEET IN A WAY THAT MAKES A COUPLE OF HALF-SHELLS TO FORM A FOOTWEAR

Also Published As

Publication number Publication date
CH426250A (en) 1966-12-15
GB1071824A (en) 1967-06-14

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