Fibrillated blend of lyocell low DP pulp
View Patent ↗A fibrillated blend of lyocell and cellulosic pulp having a degree of polymerization of 200 to 1000 as measured by ASTM Test 1795-96, a method of making the blend and materials which incorporate the blend.
1. A fibrillated blend of lyocell and cellulosic pulp having a degree of polymerization of 200 to 1000 as measured by ASTM Test 1795-96, the lyocell and cellulosic pulp having been fibrillated together to form a fibrillated blend,
wherein at least a portion of the lyocell fiber has a length of 3 to 12 mm, and
wherein the lyocell is from 25 to 75 weight percent of the blend.
2. The blend of claim 1 wherein at least one of the lyocell or the cellulosic pulp contains lignin.
3. The blend of claim 1 wherein the blend is hydrophobic.
4. The blend of claim 1 wherein the blend has been treated with an additive.
5. The blend of claim 4 wherein the additive is selected from surfactants, dispersants, nanoclay, carbon black, silica and lignin or lignin derivatives.
6. A material comprising a fibrillated blend of lyocell and cellulosic pulp having a degree of polymerization of 200 to 1000 as measured by ASTM Test 1795-96, the lyocell and cellulosic pulp having been fibrillated together to form a fibrillated blend,
wherein at least a portion of the lyocell has a length of 3 to 12 mm, and
wherein the lyocell is from 25 to 75 weight percent of the blend.
7. The material of claim 6 wherein at least one of the lyocell or the cellulosic pulp contains lignin.
8. The material of claim 6 wherein the blend is hydrophobic.
9. The material of claim 6 wherein the blend has been treated with an additive.
10. The material of claim 9 wherein the additive is selected from surfactants, dispersants, nanoclay, carbon black, silica and lignin derivatives.
11. The material of claim 6 further comprising polyvinyl alcohol, cellulose ether, polyurethane, polylactic acid, polystyrene-co-butyl acrylate, water soluble polymers, nonwovens, adhesives, water borne coatings or starch based materials.
12. The material of claim 6 further comprising thermoplastic or thermoset or gel materials.
13. The material of claim 6 further comprising elastomeric materials or rubber.
14. The fibrillated blend of lyocell and cellulosic pulp of claim 1 , wherein the cellulose pulp has a degree of polymerization of 300 to 800 as measured by ASTM Test 1795-96.
15. The fibrillated blend of lyocell and cellulosic pulp of claim 14 , wherein the cellulose pulp has a degree of polymerization of 400 to 750 as measured by ASTM Test 1795-96.