US4589940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making foamed slip resistant surfaces
Assignee: Becton Dickinson Research Corp
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Filing: 1984-12-10
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Granted: 1986-05-20
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Expires: 2004-12-10
Abstract
Abstract An improved abrasion and cut resistant surface is provided for work gloves, work shoes and like wearing apparel. The surface of the invention provides a porous surface particularly useful in work environments where it is necessary for a workman to use gloves, but which gloves are breathable and have moisture absorbing properties. The surface of the invention is a foam surface laminated to a substrate. The foam, prior to lamination, may be foamed with varying amounts of air depending upon the degree of abrasion resistance required. The foaming may be by mechanical or chemical means.
Inventors
- 👤 Michael D. Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:53
CPC Classifications
A; A41; A41D; A41D19/00; A41D19/015; A41D19/01547; B; B32; B32B; B32B27/00; B32B27/12; D; D06; D06N; D06N3/00; D06N3/0043; D06N3/0045; D06N3/04; D06N3/042; D06N3/06; D06N3/10; D06N3/12; D06N3/14; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249981
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
134 words
A method for producing a glove with a breathable, inexpensive, abrasion-resistant surface, characterized by the steps of (a) selecting in a first selecting step a glove liner comprised of a web which is a member selected from the group consisting of a fibrous non-woven web, a woven web, and a knitted web; (b) selecting in a second selecting step a material to be applied as a foamed layer to at least one surface of said glove liner from said first selecting step; (c) foaming said member selected from said second selecting step to an air content within the range of between about 40 and 95 percent; (d) applying said member from said foaming step to said at least one surface of said glove liner; and (e) curing said foamed member from said applying step.
Claim 2
Independent Claim
134 words
A method for producing a glove with a breathable, inexpensive, abrasion-resistant surface, characterized by the steps of (a) selecting in a first selecting step a glove liner comprised of a web which is a member selected from the group consisting of a fibrous non-woven web, a woven web, and a knitted web; (b) selecting in a second selecting step a material to be applied as a foamed layer to at least one surface of said glove liner from said first selecting step; (c) foaming said member selected from said second selecting step to an air content within the range of between about 40 and 95 percent; (d) applying said member from said foaming step to said at least one surface of said glove liner; and (e) curing said foamed member from said applying step.
Claim 3
Dependent Claim
30 words
The method of claim 1, further characterized by: (a) said foaming step being carried out to provide an air content within the range of between about 60 and 80 percent.
Claim 4
Dependent Claim
31 words
The method of claim 1, further characterized by: (a) said member from said first selecting step being selected from the group consisting of wool, polypropylene, polyethylene, polyacrylonitrile, nylon, and mixtures thereof.
Claim 5
Dependent Claim
34 words
The method of claim 1, further characterized by: (a) said member from said second selected step being selected from the group consisting of polyurethane, polyvinyl chloride, acrylonitrile, natural rubber, synthetic rubber, and mixtures thereof.
Claim 6
Dependent Claim
38 words
The method of claim 1, further characterized by: (a) prior to said foaming step admixing said member from said second selecting step with water to a solids content within the range of between about 5 and 75 percent.
Claim 7
Dependent Claim
29 words
The method of claim 5, further characterized by: (a) said admixing step being carried out to a solids content within the range of between about 10 and 30 percent.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-05-19 | 1989-11-18 | 1990-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-19 | 1993-11-18 | 1994-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-19 | 1997-11-18 | 1998-05-20 | $7700.00 | Window Closed / Lapsed |