IP Library › Granted Patent US 10,350,848
Granted Patent B2
US 10,350,848 · App. 14/550,235 · Granted Jul 16, 2019

Nitrile/polyurethane polymer blends

Inventors: Liong Yu Loo (Selangor, MY); Kwee Feng Hin (Selangor, MY); Karunagaran A/L Arumugam (Selangor, MY); Kim Soon Fam (Kuala Lumpur, MY); Siew Bee Neoh (Selangor, MY)
Assignee: Ansell Limited
B29D99/0067A41D19/0065A41D19/01505A41D2400/80A41D2500/50A41D2500/54
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Quick Facts
Patent No.
US 10,350,848
App. No.
14/550,235
Granted
Jul 16, 2019
Kind
B2
Abstract

A glove that includes a polymeric, elastomeric, or latex composition including a blend of a polyurethane material, an acrylonitrile-butadiene material and an ethylene vinyl acetate material; at least one of a carnauba or a modified polyethylene wax; and hard filler particles having a hardness greater than 4 Mohs or more, thereby increasing the abrasion-resistance and/or cut-resistance of the glove, is disclosed.

Claims (25)

1. A glove, comprising:

a cured aqueous polymeric, elastomeric, or latex emulsion including a blend of a polyurethane material, an acrylonitrile-butadiene material and an ethylene vinyl acetate material;

at least one of a carnauba wax, an alloy wax, or a modified polyethylene wax disposed in the emulsion; and

hard filler particles having a hardness greater than 4 Mohs, ranging in amount from 2-10% by weight and disposed within the emulsion, wherein an EN388 abrasion resistance of the glove is at least level 4.

2. The glove of claim 1 , wherein the cured aqueous polymeric, elastomeric, or latex emulsion comprises the ethylene vinyl acetate material in an amount of 1-4% by weight.

3. The glove of claim 1 , wherein the hard filler particles comprise at least one of boron carbide, boron nitride, silicon carbide, aluminum potassium silicates, or aluminum oxide.

4. The glove of claim 1 , wherein the hard filler particles are irregular in shape and have a diameter of 0.1 to 10 microns.

5. The glove of claim 1 , wherein the blend comprises an aqueous polyurethane or at least one highly carboxylated acrylonitrile-butadiene material.

6. The glove of claim 1 , wherein the cured aqueous polymeric, elastomeric, or latex emulsion comprises a foamed or an unfoamed emulsion.

7. The glove of claim 6 , wherein the cured aqueous polymeric, elastomeric, or latex emulsion is foamed and comprises a structure having one of small open cells or large open cells, wherein the small open cells are 0.01-0.40 mm in size and the large open cells are 0.07-0.70 mm in size.

8. The glove of claim 7 , wherein the foamed emulsion is an immediate or delayed collapsed foam.

9. The glove of claim 1 , wherein the EN388 abrasion level of the glove is 20,000 cycles or more.

10. The glove of claim 1 , further comprising a knitted fabric liner, wherein the cured aqueous polymeric, elastomeric, or latex emulsion is disposed as a first coating on the knitted fabric liner.

11. The glove of claim 10 , further comprising a second coating disposed on the first coating.

12. A glove, comprising:

a cured aqueous polymeric, elastomeric, or latex emulsion including a blend of a polyurethane material, an acrylonitrile-butadiene material and an ethylene vinyl acetate material;

at least one of a natural wax, synthetic wax, alloy wax, or a modified polyethylene wax disposed in the cured emulsion; and

hard filler particles having a hardness greater than 4 Mohs, ranging in amount from 2-10% by weight and disposed within the emulsion wherein the glove comprises an EN 388 abrasion resistance of level 4.

13. The glove of claim 12 , wherein the cured aqueous polymeric, elastomeric, or latex emulsion comprises the ethylene vinyl acetate material in an amount of 1-4% by weight.

14. The glove of claim 12 , wherein the hard filler particles comprise at least one of boron carbide, boron nitride, silicon carbide, aluminum potassium silicates, or aluminum oxide.

15. The glove of claim 12 , wherein the hard filler particles are irregular in shape and have a diameter of 0.1 to 10 microns.

16. A glove, comprising:

a cured aqueous polymeric, elastomeric, or latex emulsion including a blend of a polyurethane material in an amount of 1-5% by weight, a carboxylated butadiene-acrylonitrile latex in an amount of 91-98% by weight and an ethylene vinyl acetate material in an amount of 1-4% by weight;

at least one of a natural wax, synthetic wax, alloy wax, or a modified polyethylene wax disposed in the cured emulsion; and

hard filler particles having a hardness greater than 4 Mohs, ranging in amount from 2-10% by weight and disposed within the emulsion wherein the glove comprises an EN 388 abrasion resistance of level 4.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 20, 2015
From: LOO, LIONG YU; HIN, KWEE FENG; ARUMUGAM, KARUNAGARAN A/L; FAM, KIM SOON; NEOH, SIEW BEE
To: ANSELL LIMITED
Reel/Frame 034751/0710 →
Continuity (2)
Provisional Application 61908808 · Nov 26, 2013
Related Publication 20150143608A1 · May 28, 2015