IP Library Granted Patent US 7,934,395
Granted Patent B2
US 7,934,395 · App. 12/359,755 · Granted May 3, 2011

Cut-resistant gloves containing fiberglass and para-aramid

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Quick Facts
Patent No.
US 7,934,395
App. No.
12/359,755
Granted
May 3, 2011
Kind
B2
Abstract

This invention relates to 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 400 denier (56 to 440 dtex)glass fiber filament yarn and at least one 200 to 800 denier (220 to 890 dtex) para-aramid yarn, the first wrapping yarn including at least one 100 to 800 denier (110 to 890 dtex) yarn selected from the group consisting of aliphatic polyamide, polyester, and mixtures thereof; b) companion yarn of 200 to 1600 denier (220 to 1800 dtex) selected from the group consisting of aliphatic polyamide, polyester, natural fiber, cellulosic fiber, and mixtures thereof; and c) lining yarn comprising a composite yarn of from 500 to 1200 denier (560 to 1300 dtex) comprising 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.

Claims (12)

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 400 denier (56 to 440 dtex) glass fiber filament yarn and at least one 200 to 800 denier (220 to 890 dtex) para-aramid yarn,

the first wrapping yarn including at least one 100 to 800 denier (110 to 890 dtex) yarn selected from the group consisting of aliphatic polyamide, polyester, and mixtures thereof;

b) companion yarn of 200 to 1600 denier (220 to 1800 dtex) selected from the group consisting of aliphatic polyamide, polyester, natural fiber, cellulosic fiber, and mixtures thereof; and

c) lining yarn comprising a composite yarn of from 500 to 1200 denier (560 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 grams force per ounce per square yard of fabric (3 grams force per gram per square meter of fabric) 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 (475 to 815 grams per square meter).

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 022405/0679 →