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
  • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
• • A—HUMAN NECESSITIES
  • A43—FOOTWEAR
  • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
  • A43B1/00—Footwear characterised by the material
• • A—HUMAN NECESSITIES
  • A43—FOOTWEAR
  • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
  • A43B1/00—Footwear characterised by the material
  • A43B1/14—Footwear characterised by the material made of plastics
• • A—HUMAN NECESSITIES
  • A43—FOOTWEAR
  • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
  • A43B3/00—Footwear characterised by the shape or the use
  • A43B3/0036—Footwear characterised by the shape or the use characterised by a special shape or design
  • A43B3/0078—Footwear characterised by the shape or the use characterised by a special shape or design provided with logos, letters, signatures or the like decoration
  • A43B3/0084—Arrangement of flocked decoration on shoes
• • 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
• • 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
  • B29C48/285—Feeding the extrusion material to the extruder
• • 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
  • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
  • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
  • B29C70/28—Shaping operations therefor
  • B29C70/40—Shaping or impregnating by compression not applied
  • B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
  • B29C70/504—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC] using rollers or pressure bands
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
  • B29D35/00—Producing footwear
  • B29D35/0054—Producing footwear by compression moulding, vulcanising or the like; Apparatus therefor
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
  • B29D35/00—Producing footwear
  • B29D35/12—Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique
  • B29D35/14—Multilayered parts
• • 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
• • 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
  • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
  • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
  • B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
  • B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
• • 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
  • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
• • 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
• • 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
• • 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
  • B29C48/285—Feeding the extrusion material to the extruder
  • B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
• • 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
  • B29C48/285—Feeding the extrusion material to the extruder
  • B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
  • B29C48/2886—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules of fibrous, filamentary or filling materials, e.g. thin fibrous reinforcements or fillers
• • 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
  • B29K2105/16—Fillers
• • 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
  • B32B2437/00—Clothing
  • B32B2437/02—Gloves, shoes

Definitions

• This invention refers to an innovating structural thermoplastic and coextruded material with thermoadhesive substances for shoes, constituting a multilayer material
• the invention also refers to a manufactu ⁇ ng procedure of said structural material for shoes
• PI 8506015 of December 02, 1985 and PI 8601338. of March 25, 1986. granted to Giu ni Chemie GmbH It consists of a mixture in form of plastic powder (agglutmant) of polycaprolactama and of a filling mate ⁇ al such as PVC, PET, ABS or EVA This powder is distributed on a substratum of woven or not woven fabric warmed up in order to mollify it to be passed through a rolling machine It can also be manufactured bv extrusion of agglutmant and the filling material 5 - Extruded Plates - This consists of the extrusion of plates with polymeric resins.
• the purpose of this invention is an innovating material, to be used mainly as counters and cuirasses for shoes, obtained from thermoplastic resins coextruded with thermoadhesives, forming multilayers.
• the proposed structural material may consist of:
• thermoplastic resins coupled to a substratum of woven or not-woven fabric at one side only;
• thermoplastic resins coupled to two equal or different substrates of woven or not-woven fabric on two sides (right and reverse).
• the substratum of woven or not-woven fabric, mesh or canvas coupled to a thermoplastic sheet is to give a finishing touch and to improve resistance to pull and to give flexibility to the final product, minding esthetic, physical and chemical features.
• This substratum may be laminated on the rolling machine receiving the thermoplastic sheet.
• this substratum may be employed, among others, the following materials: polyester not-woven, polypropylene not-woven, polyester fabric, cotton fabric, PVC sheet, cotton flake, jersey, mesh, etc. Its thickness may vary according to material to be laminated.
• thermoplastic sheet consists of the layers described as follows:
• thermo-activatable adhesives such as EVA (ethyl- vinyl -acetate) taquifiable esters and flow aiding additives such as amides.
• EVA ethyl- vinyl -acetate
• flow aiding additives such as amides.
• These adhesives present a very low melting and reactivation temperature, starting from 60° C, and also presenting a low viscosity, i.e., a high melting index, (over 20g/10 min, according to ASTM 1238), to penetrate profoundly into the substratum of shoe leather or another desired substratum .
• These mentioned adhesives have the capacity of presenting a good anchorage for the middle layer, so that the two layers do not separate easily.
• the ideal thickness of this layer is situated between 0,01 and 0,5 mm.
• Intermediate layer B formed by polyoleflnic resins such as polypropylene, polyethylene or copolymers of ethylene.
• This internal layer provides the capacity to copy perfectly the shape of the shoe with low reactivation temperatures, situated between 60 and 100° C It also provides the feature of resiliency above 80%, that is.
• thermoplastic sheet behaves like a thermofixed plastic, and when heated at low temperatures (approximately 60° C), it behaves as a thermoplastic moulding in the desired shape
• metallic ions also form a very good anchorage for external layers
• thermoplastic sheet proposed by the invention does not occur an aggregating phase and another filling phase , since there is formation of one sole phase and the dispersion of casual loads in this phase, according to Omyalene et alii
• both phases are plastic, but with different melting points, that is. with different melting temperatures
• - Figure 6 strengthening mate ⁇ al formed by a substrate of woven or non-woven mate ⁇ al (TN), which covers the thermoplastic sheet at only one side, and which consists of only an intermediate layer (B), - Figure 7 - strengthening material formed by external substrates of woven or non- woven mate ⁇ al (TN), covering both sides of the thermoplastic sheet, consisting of only one external layer (A) and the intermediate layer (B),
• FIG 8 strengthening material formed by substrates of woven or non-woven mate ⁇ al (TN), cove ⁇ ng the thermoplastic sheet on both sides, consisting of only one intermediate layer (B),
• thermoplastic sheet consisting of external layers (A and C) and the intermediate layer (B),
• thermoplastic sheet consisting of only one external layer (A or C) and the intermediate layer (B);
• thermoplastic sheet formed only by the intermediate layer (B)
• Each layer forming the thermoplastic sheet presents a specific composition Composition of external layers A and C is the following - 0 to 100% of copolymer of ethylene with polyfunctional carboxyhc radicals
• EVA ethyl-vinyl-acetate
• stea ⁇ c taquifier 0 to 10% of amide compound to help the flow
• EVA employed on external layers A and C should possess preferably at least 28%o of acetate and the minimum fluidity index of 5 g/10 mm according to ASTM 1238
• External layers A and C may be formulated with different quantities of their contituent parts between them
• Composition of intermediate layer B of the thermoplastic sheet is the following 0 to 100% of copolymer of ethylene and methacrylic acid neutralized with sodium or
• SBR resin Styrene-butadiene
• Alternative 8 0,1 to 100% of copolymer of ethylene and methacrylic acid neutralized with sodium and zinc ions
• alpha-olef ⁇ ne that is, polyethylene, polypropylene or the copolymers thereof
• EVA employed on intermediate layer B must have at least 9% acetate and a minimum fluidity index of 5g/10 mm according to ASTM 1238
• the structural material produced according to the invention presents as main features comfort and resistance, since when used as counter or as cuirass it provides - good feeling of the shoe, as it does not need to be hard to maintain the foot in a suitable position within it, avoiding any kind of lesion or injury to the user ' s foot, - it maintains the original shape of the shoe, resisting to permanent use without deforming the leather and without breaking the structural mate ⁇ al, resulting in greater duration of the shoe structure, - it possesses memory , that is, resiliency, which is the capacity of returning to its original shape after a deformation, resisting to repeated inflection, - it possesses excellent operational performance with easy moulding, because the mollification point of resin is situated at about 63° C, improving the productivity of the shoe industry
• the invention also refers to an innovated procedure for manufacturing structural mate ⁇ al for shoes, whose main features is of being moulded in one sole equipment sequence, sparing any supplementary operation
• the operations comprising the manufacturing procedure of the structural mate ⁇ al may be identified on the table of Figure 13, which is detailed as follows
• Cooling and dimensional adjustment - structural mate ⁇ al passes over a sufficiently long area, consisting of several rollers, where it receives stability, receives lateral cuttings and the identification p ⁇ nt of the material being manufactured, such as lot, name of product and reference

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Manufacturing & Machinery (AREA)
• Chemical & Material Sciences (AREA)
• Composite Materials (AREA)
• Laminated Bodies (AREA)
• Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
• Extrusion Moulding Of Plastics Or The Like (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=4071175

Family Applications (1)

Country Status (5)

Families Citing this family (4)

Family Cites Families (6)

• 1998
  • 1998-11-23 BR BR9805490-2A patent/BR9805490C1/pt not_active Application Discontinuation
• 1999
  • 1999-11-23 WO PCT/BR1999/000097 patent/WO2000030485A1/en not_active Application Discontinuation
  • 1999-11-23 EP EP99957784A patent/EP1143818A1/en not_active Withdrawn
  • 1999-11-23 MX MXPA01005150A patent/MXPA01005150A/es not_active Application Discontinuation
  • 1999-11-23 AU AU15404/00A patent/AU1540400A/en not_active Abandoned
• 2000
  • 2000-11-22 AU AU19776/01A patent/AU1977601A/en not_active Abandoned
  • 2000-11-22 WO PCT/BR2000/000127 patent/WO2001072162A1/en active Application Filing

Non-Patent Citations (1)

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