US3668056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integral microporous article and process of making
Assignee: USM Corp
•
Filing: 1969-12-12
•
Granted: 1972-06-06
•
Expires: 1989-12-12
Abstract
Abstract A one-piece microporous clothing article such as a shoe upper or glove is formed by molding a solidifiable liquid emulsion of fine droplets of an organic liquid in a continuous phase comprising reactive material convertible through reaction to solidified resilient condition. The emulsion is caused to gel and solidify with said droplets held in the solidified material, the solidified material in the form of a shoe upper or glove is removed from engagement with the molding surface and the liquid is removed without expanding the solidified material leaving pores and discontinuities in the solidified material to constitute passageways for air and vapor.
Inventors
- 👤 Stanley I Hayes Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:59
CPC Classifications
B; B29; B29C; B29C67/00; B29C67/20; B29C67/202; A; A43; A43B; A43B23/00; A43B23/02; A43B23/0205; A43B23/0215; A43B23/022; A43B23/04; A43B23/042; B29C39/00; B29C39/02; B29C33/00; B29C33/30; B29K; B29K2075/00; B29L; B29L2031/00; B29L2031/48; B29L2031/50; B29L2031/505; Y; Y10; Y10S; Y10S264/00; Y10S264/62; Y10S264/77; Y10S428/00; Y10S428/904; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249978; Y10T428/249987; Y10T428/249991; Y10T442/00; Y10T442/20; Y10T442/2139
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
15 words
The process as defined in claim 1 in which said article is a shoe upper.
Claim 2
Dependent Claim
14 words
The process as defined in claim 1 in which said article is a glove.
Claim 3
Dependent Claim
77 words
The process of making a microporous shoe upper as defined in claim 2 in which at least 0.5 percent by weight of the combined weights of organic compound having the -NCO groups and organic compound having active hydrogens is made up of at least one organic compound having more than two reactive groups per molecule whereby the material solidified by reaction contains a substantial proportion of cross linking to improve resistance to injury by heat and solvents.
Claim 4
Dependent Claim
57 words
The process of making a microporous shoe upper as defined in claim 2 in which a flexible fibrous reinforcing member is held in predetermined relation to said molding surface and is embedded in said layer of solidifiable polymerizable organic liquid material to provide, after solidification of the liquid material, reinforcement at predetermined areas of said shoe upper.
Claim 5
Dependent Claim
52 words
The process of making a microporous clothing article as defined in claim 1 in which a pigmented solution or latex of a hydrophilic synthetic polymeric resin is deposited on said molding surface prior to forming said layer of solidifiable polymerizable organic liquid material to provide a desired surface character to said article.
Claim 6
Dependent Claim
53 words
The process of making a microporous clothing article as defined in claim 1 in which said solidifiable polymerizable organic liquid is maintained in a desired thickness distribution on said molding surface by rotationally moving said molding surface to cause said liquid to flow under the action of gravity to cover the molding surface.
Claim 7
Dependent Claim
91 words
The process of making a microporous article as defined in claim 7 in which said article is a shoe upper, said molding surface is the interior wall of a mold cavity, the quantity of solidifiable polymerizable organic liquid needed to form a layer of the desired thickness is supplied to said cavity and the solidifiable polymerizable organic liquid is distributed on the molding surface by rotationally mOving said molding surface about horizontal and vertical axes to cause said liquid to flow to cover the molding surface under the action of gravity.
Claim 8
Dependent Claim
68 words
The process of making a microporous clothing article as defined in claim 1 in which said molding surface is the interior wall of a mold cavity, a core is provided in spaced relation to said molding surface to provide a space having the desired thickness of said article between said core and said molding surface and in which said space is filled by said solidifiable polymerizable organic liquid.
Claim 9
Dependent Claim
55 words
The process of making a microporous article as defined in claim 9 in which said article is a shoe upper, and said core member is a foreshortening footform mounted in spaced relation to said molding surface to provide a space having the desired thickness of said shoe upper between the core and said molding surface.
Claim 10
Dependent Claim
31 words
The process of making a microporous shoe upper as defined in claim 10 in which a fibrous reinforcing member is supported by said core in desired relation to said molding surface.
Claim 11
Dependent Claim
33 words
Process of making a microporous shoe upper as defined in claim 11 in which a fibrous reinforcing member is stretched around said core to support it in desired relation to said molding surface.
Claim 12
Dependent Claim
125 words
The process of making a microporous shoe upper as defined in claim 2 in which said molding surface is the interior wall of a mold cavity to form a shoe upper with a bottom opening uppermost, a measured quantity of said solidifiable polymerizable organic liquid is introduced into the mold cavity and a core member with an exterior surface corresponding to the desired interior surface of the shoe is pressed down through said bottom opening to displace said liquid up into the space between said core and said molding surface and to bring the exterior surface of the core into a relation providing a distance between the surface of the core and of said molding surface corresponding to the desired thickness of said shoe upper.
Claim 13
Dependent Claim
58 words
The process of making a microporous shoe upper as defined in claim 8 in which a pigmented solution or latex of a hydrophilic synthetic polymeric resin is deposited on said molding surface before introduction of said solidifiable liquid into the space between said core and said molding surface to provide a desired surface character to said shoe upper.
Claim 14
Dependent Claim
63 words
The process of making a microporous shoe upper as defined in claim 10 in which a layer of a pigmented solution or latex of a hydrophilic synthetic polymeric resin is deposited on said molding surface before introduction of said solidifiable polymerizable organic liquid into the space between said core and said molding surface to provide a desired surface character to said shoe upper.
Claim 15
Dependent Claim
14 words
The integral microporous water vapor permeable article formed by the process of claim 1.
Claim 16
Dependent Claim
21 words
The integral microporous water vapor permeable shoe upper including a flexible fibrous reinforcing member formed by the process of claim 5.
Claim 17
Dependent Claim
34 words
The integral microporous water vapor permeable shoe upper including an integral surface finish of pigmented hydrophilic synthetic polymeric resin united to the main body of microporous material formed by the process of claim 15.
References Cited (Backward Citations)
CA733889A
Cited
US1941193A
Cited
US2434035A
Cited
US3000757A
Cited
US2958907A
Cited
US3413184A
Cited
US3293338A
Cited
US3287486A
Cited
US3369925A
Cited
US3302243A
Cited
US3382138A
Cited
US3348963A
Cited
US3539388A
Cited
US3485903A
Cited
US3539389A
Cited
US3432581A
Cited
US3436781A
Cited
US3565982A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |