WO2008019980A3 - Method for molding multicolor ethyl vinyl acetate articles and apparatus for performing the method - Google Patents

Method for molding multicolor ethyl vinyl acetate articles and apparatus for performing the method Download PDF

Info

Publication number
WO2008019980A3
WO2008019980A3 PCT/EP2007/058237 EP2007058237W WO2008019980A3 WO 2008019980 A3 WO2008019980 A3 WO 2008019980A3 EP 2007058237 W EP2007058237 W EP 2007058237W WO 2008019980 A3 WO2008019980 A3 WO 2008019980A3
Authority
WO
WIPO (PCT)
Prior art keywords
temperature
eva
article
vinyl acetate
mold
Prior art date
Application number
PCT/EP2007/058237
Other languages
French (fr)
Other versions
WO2008019980A2 (en
Inventor
Lorenzo Lorenzin
Vincenzino Carosi
Original Assignee
Main Group Corp S R L
Lorenzo Lorenzin
Vincenzino Carosi
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
Priority claimed from ITMC20060098 external-priority patent/ITMC20060098A1/en
Priority claimed from ITPD20060314 external-priority patent/ITPD20060314A1/en
Application filed by Main Group Corp S R L, Lorenzo Lorenzin, Vincenzino Carosi filed Critical Main Group Corp S R L
Publication of WO2008019980A2 publication Critical patent/WO2008019980A2/en
Publication of WO2008019980A3 publication Critical patent/WO2008019980A3/en

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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/72—Heating or cooling
    • B29C45/73—Heating or cooling of the mould
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B1/00—Footwear characterised by the material
    • A43B1/0027—Footwear characterised by the material made at least partially from a material having special colours
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1675—Making multilayered or multicoloured articles using exchangeable mould halves
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/2669—Moulds with means for removing excess material, e.g. with overflow cavities
    • 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
    • B29D35/142—Soles
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/72—Heating or cooling
    • B29C45/73—Heating or cooling of the mould
    • B29C2045/7393—Heating or cooling of the mould alternately heating and cooling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

A method for molding multicolor articles made of ethyl vinyl acetate, comprising the steps of: injecting into a first impression (11) EVA of a first color to mold a first portion (14) of a multicolor article to be obtained, the lower mold part (12) and the first upper mold part (13) being at a temperature which is lower than the melting point of EVA; opening the mold; closing the lower mold part (12) with a second upper mold part (15) which has a higher temperature than the EVA cross-linking temperature, in order to form a second impression (16) which is complementary to the first one and is adapted to provide a second portion (17) of the article to be obtained; injecting EVA of a second color to overmold on the first portion (14) the second portion (17) of the article to be provided, and simultaneously heating the lower mold part (12) to a temperature which is higher than the cross-linking temperature; once cross-linking has been completed, opening the mold and extracting the article. At least one of the mold parts (12, 13, 15) is shaped so as to form, with its complementary part, flash (18) around the corresponding impression.
PCT/EP2007/058237 2006-08-14 2007-08-08 Method for molding multicolor ethyl vinyl acetate articles and apparatus for performing the method WO2008019980A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ITMC2006A000098 2006-08-14
ITMC20060098 ITMC20060098A1 (en) 2006-08-14 2006-08-14 MOLD FOR FORMING A TWO-COLOR FUND FOR FOOTWEAR OBTAINED IN EXPANDABLE-RETICULOUS THERMOPLASTIC MATERIAL
ITPD20060314 ITPD20060314A1 (en) 2006-08-22 2006-08-22 "PROCESS PERFECTED FOR MOLDING OF ARTICLES WITH MORE COLORS IN ETHYLVINILACETATE AND EQUIPMENT TO REALIZE THIS PROCEDURE"
ITPD2006A000314 2006-08-22

Publications (2)

Publication Number Publication Date
WO2008019980A2 WO2008019980A2 (en) 2008-02-21
WO2008019980A3 true WO2008019980A3 (en) 2008-04-17

Family

ID=38664772

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/058237 WO2008019980A2 (en) 2006-08-14 2007-08-08 Method for molding multicolor ethyl vinyl acetate articles and apparatus for performing the method

Country Status (1)

Country Link
WO (1) WO2008019980A2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103917359A (en) * 2011-08-10 2014-07-09 耐克国际有限公司 Article of footwear formed from two preforms and method and mold for manufacturing same
US8857645B2 (en) 2006-12-27 2014-10-14 Abbott Laboratories Container
US9387963B2 (en) 2012-04-27 2016-07-12 Abbott Laboratories Container
USD782696S1 (en) 2013-04-26 2017-03-28 Abbott Laboratories Container

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8627981B2 (en) * 2009-06-05 2014-01-14 Abbott Laboratories Container
US9731464B2 (en) 2011-08-10 2017-08-15 Nike, Inc. Article of footwear formed from two preforms and method and mold for manufacturing same
US9205615B2 (en) * 2013-03-01 2015-12-08 Nike, Inc. Method of forming midsole of two materials
WO2014145501A1 (en) * 2013-03-15 2014-09-18 Nike, Inc. Article of footwear formed from two preforms and method and mold for manufacturing same
US10172415B2 (en) 2014-04-14 2019-01-08 Nike, Inc. Sole assembly formed from multiple preforms and method and mold for manufacturing same
US10226906B2 (en) * 2014-04-14 2019-03-12 Nike, Inc. Method of manufacturing sole assembly formed of multiple preforms
FR3026339B1 (en) * 2014-09-30 2017-04-21 Valeo Vision MOLD FOR THE MANUFACTURE OF A POLYMER ELEMENT FOR AN OPTICAL BLOCK FOR A MOTOR VEHICLE HAVING A COUPLING MEMBER
WO2016134836A1 (en) 2015-02-23 2016-09-01 Al.Pi. S.R.L. Process for injection moulding monochrome and multicoloured eva soles using two machines and two moulds
ITUB20160855A1 (en) * 2016-02-18 2017-08-18 Guarda Corrado Dalla PROCESS PERFECTED FOR MOLDING OF ARTICLES WITH MORE COLORS AND MORE INSERTS IN EXPANDABLE AND RETICULABLE THERMOPLASTIC MATERIAL AND ITEM OBTAINED
FR3102709B1 (en) * 2019-10-31 2021-11-05 Christian Louboutin Two-tone shoe outsole and method of manufacturing such an outsole
IT202000021172A1 (en) 2020-09-08 2022-03-08 Da Ma & Co S R L METHOD FOR MOLDING LAMINATED PRODUCTS MADE OF POLYMER MATERIAL AND RELATIVE MOLDING KIT

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6000923A (en) * 1998-03-17 1999-12-14 Lo; Chie-Fang Mold assembly for manufacturing an outsole
US6004300A (en) * 1997-08-28 1999-12-21 Butcher; Robert M Composite hypodermic syringe piston
EP1036647A1 (en) * 1999-03-15 2000-09-20 Cheng-Hsian Chi Method for making an integral foamed insole with a sole body
WO2007071594A1 (en) * 2005-12-21 2007-06-28 Main Group Corporation S.R.L. Vertical injection machine for molding soles, technical articles and the like

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6004300A (en) * 1997-08-28 1999-12-21 Butcher; Robert M Composite hypodermic syringe piston
US6000923A (en) * 1998-03-17 1999-12-14 Lo; Chie-Fang Mold assembly for manufacturing an outsole
EP1036647A1 (en) * 1999-03-15 2000-09-20 Cheng-Hsian Chi Method for making an integral foamed insole with a sole body
WO2007071594A1 (en) * 2005-12-21 2007-06-28 Main Group Corporation S.R.L. Vertical injection machine for molding soles, technical articles and the like

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8857645B2 (en) 2006-12-27 2014-10-14 Abbott Laboratories Container
US9505522B2 (en) 2006-12-27 2016-11-29 Abbott Laboratories Container
US11554893B2 (en) 2006-12-27 2023-01-17 Abbott Laboratories Container
CN103917359A (en) * 2011-08-10 2014-07-09 耐克国际有限公司 Article of footwear formed from two preforms and method and mold for manufacturing same
US9387963B2 (en) 2012-04-27 2016-07-12 Abbott Laboratories Container
USD782696S1 (en) 2013-04-26 2017-03-28 Abbott Laboratories Container

Also Published As

Publication number Publication date
WO2008019980A2 (en) 2008-02-21

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