US3624191A - Footwear - Google Patents

Footwear Download PDF

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Publication number
US3624191A
US3624191A US793559*A US3624191DA US3624191A US 3624191 A US3624191 A US 3624191A US 3624191D A US3624191D A US 3624191DA US 3624191 A US3624191 A US 3624191A
Authority
US
United States
Prior art keywords
insole
footwear
resin
shoe
percent
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 - Lifetime
Application number
US793559*A
Other languages
English (en)
Inventor
Donald Weight
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.)
Monsanto Chemicals Ltd
Original Assignee
Monsanto Chemicals Ltd
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 Monsanto Chemicals Ltd filed Critical Monsanto Chemicals Ltd
Application granted granted Critical
Publication of US3624191A publication Critical patent/US3624191A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/38—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process
    • 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
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/10—Surface shaping of articles, e.g. embossing; Apparatus therefor by electric discharge treatment
    • 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
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • 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
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • 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
    • B29L2031/507—Insoles
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene

Definitions

  • an insole comprising an extruded foamed resin sheet having a substantially uniform thickness of 0.04-0.2 inch, a substantially closed cell structure, and a density of 17-40 pound per cubic foot from a resin which is an ethylene-vinyl acetate copolymer or a blend thereof with polyethylene and which contains 2-l 7 percent by weight of polymerized vinyl acetate, (2) bonding the insole to a relatively rigid heel board to form an assembly, an (3) bonding the other components of a shoe or the like to said assembly to form an article of footwear.
  • the foamed sheet has a substantially closed cell structure, i.e., the majority, normally at least 90percent, of the cells are closed.
  • the majority, and more preferably at least 75 percent, of the cells have a diameter of 0.0040.04 inch e.g., 0.0 l-0.03 inch.
  • the blowing agent is sometimes employed in conjunction with a nucleating agent, which assists in the formation of a large number of fine cells.
  • a nucleating agent can be employed, including finely divided inert solids such as silica or alumina (optionally in conjunction with zinc stearate), or small quantities of a substance that decomposes at the extrusion temperature to give a gas can be used.
  • An example of the latter class of nucleating agents is sodium bicarbonate, optionally in conjunction with a weak acid such as tartaric or citric acid. Boric acid, calcium acetate, calcium propionate, and calcium benzoate are also excellent nucleating agents.
  • a small proportion of the nucleating agent e.g., up to 5 percent by weight of the resin, is usually effective.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US793559*A 1968-02-01 1969-01-23 Footwear Expired - Lifetime US3624191A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5232/68A GB1198552A (en) 1968-02-01 1968-02-01 Footwear.

Publications (1)

Publication Number Publication Date
US3624191A true US3624191A (en) 1971-11-30

Family

ID=9792196

Family Applications (1)

Application Number Title Priority Date Filing Date
US793559*A Expired - Lifetime US3624191A (en) 1968-02-01 1969-01-23 Footwear

Country Status (5)

Country Link
US (1) US3624191A (cs)
DE (1) DE1904892A1 (cs)
FR (1) FR1600253A (cs)
GB (1) GB1198552A (cs)
NL (1) NL6901112A (cs)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4524529A (en) * 1982-08-27 1985-06-25 Helmut Schaefer Insole for shoes
US20070264520A1 (en) * 2002-12-10 2007-11-15 Wood Willard E Articles having a polymer grafted cyclodextrin
US20080103221A1 (en) * 2004-11-08 2008-05-01 Emanuela Alexandra Weinbeck Crosslinked Polymer Foam Sheet and Process Therefor
US20090094858A1 (en) * 2007-10-11 2009-04-16 Ungari Joseph L Article of footwear with tubular sole assembly and method of manufacture

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1306373A (cs) * 1970-01-30 1973-02-07

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2565003A (en) * 1947-03-17 1951-08-21 Bata Narodni Podnik Apparatus for the vulcanization of plastic materials
US3080589A (en) * 1955-06-10 1963-03-12 Midgiey Shoe Systems Inc Method of forming a laminated insole of varying thickness
US3348251A (en) * 1965-01-22 1967-10-24 United Shoe Machinery Corp Shoe manufacturing
US3379802A (en) * 1964-11-04 1968-04-23 Dow Chemical Co Foamed olefin copolymer blends

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2565003A (en) * 1947-03-17 1951-08-21 Bata Narodni Podnik Apparatus for the vulcanization of plastic materials
US3080589A (en) * 1955-06-10 1963-03-12 Midgiey Shoe Systems Inc Method of forming a laminated insole of varying thickness
US3379802A (en) * 1964-11-04 1968-04-23 Dow Chemical Co Foamed olefin copolymer blends
US3348251A (en) * 1965-01-22 1967-10-24 United Shoe Machinery Corp Shoe manufacturing

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4524529A (en) * 1982-08-27 1985-06-25 Helmut Schaefer Insole for shoes
US4575446A (en) * 1982-08-27 1986-03-11 Helmut Schaefer Process for producing an insole for shoes
US20070264520A1 (en) * 2002-12-10 2007-11-15 Wood Willard E Articles having a polymer grafted cyclodextrin
US20080103221A1 (en) * 2004-11-08 2008-05-01 Emanuela Alexandra Weinbeck Crosslinked Polymer Foam Sheet and Process Therefor
US20090094858A1 (en) * 2007-10-11 2009-04-16 Ungari Joseph L Article of footwear with tubular sole assembly and method of manufacture
US7926204B2 (en) 2007-10-11 2011-04-19 Nike, Inc. Article of footwear with tubular sole assembly and method of manufacture
US20110154584A1 (en) * 2007-10-11 2011-06-30 Ungari Joseph L Article of footwear with tubular sole assembly and method of manufacture
US8650690B2 (en) 2007-10-11 2014-02-18 Nike, Inc. Article of footwear with tubular sole assembly and method of manufacture

Also Published As

Publication number Publication date
NL6901112A (cs) 1969-08-05
DE1904892A1 (de) 1969-09-04
FR1600253A (cs) 1970-07-20
GB1198552A (en) 1970-07-15

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