WO2021232120A1 - Footwear made by polyurethane sole and upper footwear foundry - Google Patents

Footwear made by polyurethane sole and upper footwear foundry Download PDF

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Publication number
WO2021232120A1
WO2021232120A1 PCT/BR2020/050314 BR2020050314W WO2021232120A1 WO 2021232120 A1 WO2021232120 A1 WO 2021232120A1 BR 2020050314 W BR2020050314 W BR 2020050314W WO 2021232120 A1 WO2021232120 A1 WO 2021232120A1
Authority
WO
WIPO (PCT)
Prior art keywords
footwear
foundry
polyurethane
sole
present
Prior art date
Application number
PCT/BR2020/050314
Other languages
English (en)
French (fr)
Inventor
Jose Julio CHRISTIANO
Original Assignee
Christiano Jose Julio
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 Christiano Jose Julio filed Critical Christiano Jose Julio
Publication of WO2021232120A1 publication Critical patent/WO2021232120A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B9/00—Footwear characterised by the assembling of the individual parts
    • A43B9/16—Footwear with soles moulded on to uppers or welded on to uppers without adhesive
    • 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
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/42—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B1/00—Footwear characterised by the material
    • A43B1/10—Footwear characterised by the material made of rubber
    • 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
    • A43B9/00—Footwear characterised by the assembling of the individual parts
    • A43B9/16—Footwear with soles moulded on to uppers or welded on to uppers without adhesive
    • A43B9/18—Footwear with soles moulded on to uppers or welded on to uppers without adhesive moulded
    • 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
    • B29D35/02—Producing footwear made in one piece using a moulding technique, e.g. by injection moulding or casting
    • 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
    • B29C44/58—Moulds
    • 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
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
    • 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
    • B29L2031/50—Footwear, e.g. shoes or parts thereof

Definitions

  • the present invention refers to a footwear entirely made of polyurethane.
  • An invention refers, more specifically, to a manufacturing method, belonging to the Field of production processes s for footwear, made by the foundry of a unique material, or polyurethane, to create a footwear.
  • Figure 1 shows an isometric perspective view of footwear in accordance with the present invention
  • Figure 2 shows an isometric view with a footwear cutting table in accordance with the present invention
  • Figure 3 shows an isometric view in section of footwear in accordance with the present invention
  • the present invention consists of a footwear characterized by comprising in its production process the foundry of a single material, polyurethane.
  • Polyurethane (PU) the material that makes up the product of the invention, is a polymer formed by polyol and isocyanate by the foundry process.
  • PU Polyurethane
  • the present invention was developed, by means of which the footwear is produced by an aluminum mold that receives the PU material, with coloring pigmentation and finalize the product in the mold with a design selected for manufacturing.
  • the body of the footwear is produced by going through the production process with the use of virgin PU in white or with pigmentation, which characterizes it, making sole and upper footwear a single component, through injection of material at high temperature, of 120° C, in the mold, solidifying the liquid polyurethane, with the foundry of the sole to the body, without seams or glue, providing a product with a light, soft and elegant finish, with an ergonomic character, comfortable, impact resistant, safe and low cost, non-slip and easy cleaning for the consumer, and also recyclable.
  • the footwear produced by polyurethane foundry can be made using different models of footwear, for example: sandals, slippers, boots, which offers the manufacturer the possibility of manufacturing various footwear options, to use in different areas, focused in both casual and formal contexts, which delivers the advantages of the invention in focus, such as low cost, comfort, safety and easy cleaning, fundamental characteristics in the purchase choice of the consumer market.
  • FIG. 1 there is an isometric view of a footwear produced in a single material, polyurethane, consisting of item (01) upper footwear, and item (02) sole, converted into a single body by the foundry process.
  • the footwear in question, shown in Figure 2 is produced in two stages with regard to foundry, which are: (1) production of the sole by injection into the mold, taking approximately 1 to 3 minutes, and (2) the production of the footwear through the second injection and, sequentially, from the foundry of the sole to the upper footwear, taking approximately 1 to 3 minutes, which solidifies forming, in the process, the footwear body, which can be seen in Figure 3. It is It is important to note that there is no need for an insole in the footwear, once they are used with socks, as the material is characterized by comfort.
  • the footwear is made by the injection of liquid polyurethane in aluminum molds and foundry of the material, requires approximately 3 to 6 minutes to design the final product and is finished after the product has cooled quickly at room temperature.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
PCT/BR2020/050314 2020-05-22 2020-08-12 Footwear made by polyurethane sole and upper footwear foundry WO2021232120A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BR102020010307-5A BR102020010307A2 (pt) 2020-05-22 2020-05-22 Calçado produzido por fundição de solado e cabedal em poliuretano
BRBR102020010307-5 2020-05-22

Publications (1)

Publication Number Publication Date
WO2021232120A1 true WO2021232120A1 (en) 2021-11-25

Family

ID=78708818

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BR2020/050314 WO2021232120A1 (en) 2020-05-22 2020-08-12 Footwear made by polyurethane sole and upper footwear foundry

Country Status (2)

Country Link
BR (1) BR102020010307A2 (pt)
WO (1) WO2021232120A1 (pt)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7350321B2 (en) * 2002-05-23 2008-04-01 Adidas International Marketing B.V. Shoe upper and methods of manufacture
US20130118037A1 (en) * 2011-04-29 2013-05-16 Dale Bathum Footwear with dual molded piece construction
US8800085B2 (en) * 2010-11-30 2014-08-12 Puma SE Method for producing a shoe and shoe
US20150150339A1 (en) * 2013-12-03 2015-06-04 Nike, Inc. Article of Footwear
EP3545783A1 (en) * 2018-03-29 2019-10-02 Hevea B.V. Article of footwear, and method for manufacturing such an article
US20190297990A1 (en) * 2018-03-29 2019-10-03 Lacrosse Footwear, Inc. Footwear assembly having a vulcanized rubber layer and polyurethane layer
US20200170344A1 (en) * 2017-08-04 2020-06-04 Stefanie Miller Kwiatkowski Slip resistant shoe

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7350321B2 (en) * 2002-05-23 2008-04-01 Adidas International Marketing B.V. Shoe upper and methods of manufacture
US8800085B2 (en) * 2010-11-30 2014-08-12 Puma SE Method for producing a shoe and shoe
US20130118037A1 (en) * 2011-04-29 2013-05-16 Dale Bathum Footwear with dual molded piece construction
US20150150339A1 (en) * 2013-12-03 2015-06-04 Nike, Inc. Article of Footwear
US20200170344A1 (en) * 2017-08-04 2020-06-04 Stefanie Miller Kwiatkowski Slip resistant shoe
EP3545783A1 (en) * 2018-03-29 2019-10-02 Hevea B.V. Article of footwear, and method for manufacturing such an article
US20190297990A1 (en) * 2018-03-29 2019-10-03 Lacrosse Footwear, Inc. Footwear assembly having a vulcanized rubber layer and polyurethane layer

Also Published As

Publication number Publication date
BR102020010307A2 (pt) 2021-12-07

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