Cut resistant article

Patent metadata

Field	Value
Publication number	US-9896586-B2
Application number	US-201113640173-A
Country	US
Kind code	B2
Filing date	Apr 7, 2011
Priority date	Apr 7, 2010
Publication date	Feb 20, 2018
Grant date	Feb 20, 2018

Abstract

The invention relates to an article comprising a cut-resistant coating which contains a polymeric matrix and a cut-resistant component distributed in the polymeric matrix characterized in that said cut-resistant component is a plurality of fibers having an average length (L) to an average diameter (D) ratio, i.e. L/D, of at least 10.

First claim

The invention claimed is:

1. An article having an outer surface, the article comprising:
a woven fabric, and
a cut-resistant coating disposed at least partially on the outer surface of the article, wherein
the cut-resistant coating comprises a polymeric matrix and a cut-resistant component distributed in the polymeric matrix, and wherein
the cut-resistant component is a plurality of hard cut-resistant mineral fibers having a Mohs hardness of at least 4, and an aspect ratio L/D of an average length (L) to an average diameter (D) of the fibers of at least 10, with the average diameter (D) of the cut-resistant component being between 5 and 50 microns, and wherein
the outer surface of the article is a surface of the article before receiving the cut-resistant coating which is exposed first to a cutting force, cutting action or cutting process, and wherein
the article has a resistance against cutting forces of a magnitude between 5 cN and 15 cN as measured on a Cut Protection Performance (CPP) tester according to ASTMF1790-05 standard.

2. The article of claim 1 , wherein the cut-resistant coating comprises 0.1-20 volume % of the cut-resistant component relative to a volume of the polymeric matrix.

3. The article of claim 1 , wherein the article is a glove.

4. The article of claim 1 , wherein the polymeric matrix comprises an elastomeric polymer selected from the group consisting of natural rubber, synthetic rubber and thermoplastic elastomers.

5. The article of claim 1 , wherein the cut-resistant coating has an average thickness which is at least 0.3 mm.

6. The article of claim 1 , wherein the hard fibers are spun mineral fibers.

7. The article of claim 1 , wherein the average length (L) of the cut resistant fibers is at most 10000 microns.

8. The article of claim 1 , wherein at least part of the cut-resistant fibers have an aspect ratio (L/D) of at most 10000.

Assignees

• Henssen Giovanni Joseph Ida
• Verdaasdonk Peto
• Dsm Ip Assets Bv

Inventors

• Henssen Giovanni Joseph Ida
• Verdaasdonk Peto

Classifications

• C08J7/0427

  with only one layer of a composition containing a polymer binder (with more layers C08J7/042) · CPC title

• A41D31/24

  Resistant to mechanical stress, e.g. pierce-proof {(aprons resistant to mechanical aggressions A41D13/043)} · CPC title

• A41D19/00

  Gloves (brush bodies shaped as gloves A46B5/04; gloves for washing the body A47K7/02; gloves for domestic washing or cleaning A47L13/18; surgical gloves A61B42/10; swimming gloves A63B31/02; as accessories for games or sports, e.g. baseball, boxing or golf gloves A63B71/14; gloves for glove-boxes B25J1/02) · CPC title

• C08J2321/02

  Latex · CPC title

• A41D19/0096

  Means for resisting mechanical agressions, e.g. cutting or piercing · CPC title