Gloves with enhanced anti-cuff-slip surface
First Claim
1. A flexible article comprising:
- a substrate body formed largely from an elastomeric material, said substrate body having a first surface and a second surface;
said first surface is differentiated into at least a first and a second zone, each zone having a coefficient of friction, such that the coefficient of friction for said first zone is greater than the coefficient for said second zone, according to an average ratio in a range from about 1.2;
1 to about 4.5;
1 said first zone is absent a donning layer, and said second zone has said donning layer.
1 Assignment
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Accused Products
Abstract
An elastomeric article encompassing an enclosure with an interior surface having at least two regions or zones is described. The first region has a higher coefficient of friction than the second region, in which an average coefficient of friction (COF) ratio between the first and second regions of the wearer-contact surface ranges from about 1:1.2 to about 1:3.8 or 4.0. The first region has either the same or smaller surface area than the second region, and is situated at or near an opening to the enclosure. The second region is coated with a hydrogel-based donning layer. A process of making the elastomeric article is also provided. Examples of elastomeric articles according to the invention include surgeons'"'"' gloves that exhibit good lubricity and donning characteristics, and have an improved cuff-slippage control.
60 Citations
30 Claims
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1. A flexible article comprising:
- a substrate body formed largely from an elastomeric material, said substrate body having a first surface and a second surface;
said first surface is differentiated into at least a first and a second zone, each zone having a coefficient of friction, such that the coefficient of friction for said first zone is greater than the coefficient for said second zone, according to an average ratio in a range from about 1.2;
1 to about 4.5;
1 said first zone is absent a donning layer, and said second zone has said donning layer. - View Dependent Claims (2, 3, 4, 5, 6, 7)
- a substrate body formed largely from an elastomeric material, said substrate body having a first surface and a second surface;
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8. An glove comprising:
- an elastomeric substrate body with an inner surface having a first and a second region, said first region having a higher coefficient of friction relative to said second region, according to a ratio in a range from about 1.2;
1 to about 3.5;
1, and said second region being either substantially larger or about equal in surface area than said first region, and having at least a partially coating of a donning material layer. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17)
- an elastomeric substrate body with an inner surface having a first and a second region, said first region having a higher coefficient of friction relative to said second region, according to a ratio in a range from about 1.2;
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18. A method of fabricating an elastomeric article having a surface with at least two regions with differentiated coefficients of friction, the method comprises:
- providing a natural rubber or synthetic polymer latex substrate on a mould;
subjecting said latex substrate to a first water leach;
applying an aqueous AlSO4-containing solution to a surface of said latex substrate;
applying a donning coating over a part of said AlSO4-coated surface, leaving a zone of about at least 1 inch (˜
2.2 cm) from a terminal edge of said latex substrate uncoated with said donning coating;
drying and curing said donning coating;
subjecting said latex substrate to a second water leach;
applying a second layer of AlSO4 over said donning coating; and
exposing said latex substrate to a dilute solution of an oxidizing agent under alkaline conditions of about pH ≧
8. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
- providing a natural rubber or synthetic polymer latex substrate on a mould;
Specification