Cut resistant article

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.

Claims

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.

Description

EXAMPLE 1

(1) Gloves were coated as in the Comparative Example with the exception that a mineral fiber was added to the coating dispersion in an amount of 12.5 wt. % in relation to the total solid content. The mineral fibers have an average length of 230 micron (mass weighed average) and an average diameter of 9 micron (mass weighed average). Thus L/D is 25.6. The mineral fibers are sold under the trade name Rockbrake Roxul RB220ELS from Lapinus.

(2) Cut resistance was measured according to the method described above and was 87.81 mm/1000 gr (average for 10 measurements).

(3) The above examples show that addition of the cut-resistant component to the matrix significantly increases the cut resistance of the gloves.