IP Library Granted Patent US 7,934,397
Granted Patent B2
US 7,934,397 · App. 12/359,789 · Granted May 3, 2011

Cut-resistant gloves containing fiberglass and para-aramid

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Quick Facts
Patent No.
US 7,934,397
App. No.
12/359,789
Granted
May 3, 2011
Kind
B2
Abstract

A cut-resistant knit glove comprising cut-resistant composite yarn, companion yarn and lining yarn. The cut-resistant composite yarn having a core comprising at least two core yarns and at least one first wrapping yarn helically wrapped around the core. The companion yarn comprising para-aramid. The lining yarn comprises either (i) composite yarn having an elastomeric yarn core and at least one second wrapping yarn helically wrapped around the yarn core or (ii) yarn comprising aliphatic polyamide fiber, polyester fiber, natural fiber, cellulosic fiber, and mixtures thereof. The cut-resistant composite yarn, the companion yarn, and the lining yarn are co-knit in the glove with the lining yarn plated on the interior of the glove and the cut-resistant composite yarn and companion yarn forming the exterior of the glove.

Claims (13)

1. A cut-resistant knit glove comprising:

a) cut-resistant composite yarn having a core comprising at least two core yarns and at least one first wrapping yarn helically wrapped around the core,

the core yarns including at least one 50 to 600 denier (56 to 680 dtex) glass fiber filament yarn and at least one 100 to 600 denier (110 to 680 dtex) para-aramid yarn, the first wrapping yarn including at least one 100 to 600 denier (110 to 680 dtex) yarn selected from the group of consisting of para-aramid, aliphatic polyamide, polyester, and mixtures thereof;

b) companion yarn having a linear density of from 100 to 1800 denier (110 to 2000 dtex) comprising para-aramid; and

c) lining yarn comprising either

i) composite yarn of from 100 to 500 denier (110 to 560 dtex), the composite yarn having an elastomeric yarn core comprising at least one elastomeric yarn and at least one second wrapping yarn helically wrapped around the yarn core, the second wrapping yarn including at least one 20 to 300 denier (22 to 340 dtex) yarn selected from the group consisting of aliphatic polyamide, polyester, natural fibers, cellulosic fibers, and mixtures thereof, or

ii) yarn of from 100 to 1200 denier (110 to 1300 dtex) selected from the group consisting of aliphatic polyamide fiber, polyester fiber, natural fiber, cellulosic fiber, and mixtures thereof; and

wherein the cut-resistant composite yarn, the companion yarn, and the lining yarn are co-knit in the glove with the lining yarn plated on the interior of the glove and the cut-resistant composite yarn and companion yarn forming the exterior of the glove.

2. The cut-resistant knit glove of claim 1 wherein the para-aramid yarn comprises staple fibers or continuous filaments.

3. The cut-resistant knit glove of claim 1 wherein the para-aramid is poly(paraphenylene terephthalamide).

4. The cut-resistant knit glove of claim 1 further having a cut resistance index of 100 or higher.

5. The cut-resistant knit glove of claim 4 having a knit fabric basis weight of from 14 to 24 ounces per square yard.

6. The cut-resistant knit glove of claim 1 further comprising an exterior synthetic polymer coating selected from the group consisting of nitrile, latex, polyurethane, neoprene, rubber, and mixtures thereof.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 25, 2019
From: E. I. DU PONT DE NEMOURS AND COMPANY
To: DUPONT SAFETY & CONSTRUCTION, INC.
Reel/Frame 049582/0514 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 17, 2009
From: ZHU, REIYAO
To: E. I. DU PONT DE NEMOURS AND COMPANY
Reel/Frame 022405/0554 →