Elastomeric covering material and hand glove made therewith
DC CAFCFirst Claim
1. A .Iadd.closely fitting .Iaddend.glove comprising a layer of elastomeric material .Iadd.(a) comprising nitrile butadiene rubber, (b) .Iaddend.having an initial configuration adapted to receive .Iadd.and fit closely about .Iaddend.a hand.Iadd., .Iaddend.and .Iadd.(c) .Iaddend.characterized by .Iadd.(i) .Iaddend.being substantially impermeable to water vapor and liquid water, .Iadd.(ii) .Iaddend.having a tensile strength of at least about 1500 psi as measured according to ASTM D-412 on a sample of the elastomeric material having a thickness from about 4.0 to about 4.5 mils, and .Iadd.(iii) .Iaddend.having a .Iadd.thickness and .Iaddend.elastic properties such that .Iadd.the glove is capable of being stretched to fit closely about the hand and .Iaddend.when stretched from the initial configuration to fit .Iadd.closely .Iaddend.about the hand, the elastomeric material conforms to the configuration of the hand, initially exerting . .a predetermined.!. .Iadd.an initial .Iaddend.pressure on the hand and thereafter .Iadd.still fitting closely about the hand, but .Iaddend.relaxing.Iadd., within about 6 minutes after the glove is stretched to fit about said hand, .Iaddend.to exert on the hand a reduced pressure which is . .substantially.!. less than about . .80%.!. .Iadd.50% .Iaddend.of the . .predetermined.!. .Iadd.initial .Iaddend.pressure.
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Accused Products
Abstract
An elastomeric material and gloves made therewith are substantially impermeable to water vapor and liquid water, have a relatively high tensile strength, and have a relatively low resilience. The gloves conform to the shape of a hand when stretched to fit about the hand and then relax so that the pressure exerted on the hand is substantially reduced. The gloves are particularly useful in medical applications and most particularly useful as surgical gloves.
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Citations
14 Claims
- 1. A .Iadd.closely fitting .Iaddend.glove comprising a layer of elastomeric material .Iadd.(a) comprising nitrile butadiene rubber, (b) .Iaddend.having an initial configuration adapted to receive .Iadd.and fit closely about .Iaddend.a hand.Iadd., .Iaddend.and .Iadd.(c) .Iaddend.characterized by .Iadd.(i) .Iaddend.being substantially impermeable to water vapor and liquid water, .Iadd.(ii) .Iaddend.having a tensile strength of at least about 1500 psi as measured according to ASTM D-412 on a sample of the elastomeric material having a thickness from about 4.0 to about 4.5 mils, and .Iadd.(iii) .Iaddend.having a .Iadd.thickness and .Iaddend.elastic properties such that .Iadd.the glove is capable of being stretched to fit closely about the hand and .Iaddend.when stretched from the initial configuration to fit .Iadd.closely .Iaddend.about the hand, the elastomeric material conforms to the configuration of the hand, initially exerting . .a predetermined.!. .Iadd.an initial .Iaddend.pressure on the hand and thereafter .Iadd.still fitting closely about the hand, but .Iaddend.relaxing.Iadd., within about 6 minutes after the glove is stretched to fit about said hand, .Iaddend.to exert on the hand a reduced pressure which is . .substantially.!. less than about . .80%.!. .Iadd.50% .Iaddend.of the . .predetermined.!. .Iadd.initial .Iaddend.pressure.
Specification