US4061709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacturing textured gloves of silicone rubber
Assignee: Dow Silicones Corp
•
Filing: 1975-06-25
•
Granted: 1977-12-06
•
Expires: 1995-06-25
Abstract
Abstract There is described a method of manufacturing silicone rubber gloves with a non-blocking surface by repeatedly dipping a form in a solvent dispersion of uncured silicone rubber to build up a plurality of layers and then forming a layer of liquid droplets on the surface of the solvent-containing uncured rubber, thereby forming a textured surface as the solvent evaporates.
Inventors
- 👤 Carl W. Miller
- 👤 Lester C. Vandenberg
- 👤 Wayne H. Statt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:35
CPC Classifications
B; B29; B29C; B29C41/00; B29C41/02; B29C41/14; B29C37/00; B29C37/0067; B29D; B29D99/00; B29D99/0064; B29D99/0067; B29K; B29K2021/00; B29L; B29L2031/00; B29L2031/48; B29L2031/4842; B29L2031/4864
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
117 words
In a method of manufacturing textured gloves by repeatedly dipping a glove form into a solvent dispersion of uncured silicone rubber to build up a plurality of layers thereon followed by drying and curing the silicone rubber layers to form a glove, the additional step , prior to curing the layers, of exposing the uncured solvent-containing surface of the last layer of silicone rubber to a wet atmosphere as the solvent evaporates until a fine non-coalescing layer of fluid particles has been deposited over the surface of the last layer, the atmosphere being chosen so that the fluid particles have the same or greater heat of vaporization than said solvent whereby a texturized surface effect is produced.
Claim 2
Dependent Claim
117 words
In a method of manufacturing textured gloves by repeatedly dipping a glove form into a solvent dispersion of uncured silicone rubber to build up a plurality of layers thereon followed by drying and curing the silicone rubber layers to form a glove, the additional step , prior to curing the layers, of exposing the uncured solvent-containing surface of the last layer of silicone rubber to a wet atmosphere as the solvent evaporates until a fine non-coalescing layer of fluid particles has been deposited over the surface of the last layer, the atmosphere being chosen so that the fluid particles have the same or greater heat of vaporization than said solvent whereby a texturized surface effect is produced.
Claim 3
Dependent Claim
45 words
The method as defined in claim 1 wherein immediately prior to forming said layer of fluid particles the last layer of uncured rubber on the glove form is dried to evaporate the solvent, and is then immersed in the solvent for said uncured silicone rubber.
Claim 4
Dependent Claim
45 words
The method as defined in claim 2 wherein said layer of fluid particles is formed by exposing the surface of the uncured solvent-containing last layer of silicone rubber to a steam saturated atmosphere at a temperature less than 120° F. for at least 30 seconds.
Claim 5
Dependent Claim
45 words
The method as defined in claim 1 wherein said layer of fluid particles is formed by exposing the surface of the uncured solvent-containing last layer of silicone rubber to a steam saturated atmosphere at a temperature less than 120° F. for at least 30 seconds.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-05 | 1981-06-06 | 1981-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-05 | 1985-06-06 | 1985-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-05 | 1989-06-06 | 1989-12-06 | $7700.00 | Window Closed / Lapsed |