Pumpable shelf-stable suspension of fibers in an organic phase

Patent metadata

Field	Value
Publication number	US-9688864-B2
Application number	US-201414902255-A
Country	US
Kind code	B2
Filing date	Jun 10, 2014
Priority date	Jul 31, 2013
Publication date	Jun 27, 2017
Grant date	Jun 27, 2017

Abstract

A pumpable shelf-stable suspension of fibers in an organic phase comprising 1.0-60 wt % of fibers and 0.01-10 wt % of a disubstituted urea is proposed as well as a method using the disubstituted urea to suspend fibers in an organic phase.

First claim

What is claimed is:

1. A pumpable shelf-stable suspension of fibers in an organic phase, comprising:
1.0-60 wt % of fibers; and
0.01-10 wt % of a disubstituted urea.

2. The pumpable shelf-stable suspension according to claim 1 , wherein the fibers are present in an amount of from 10-60 wt %.

3. The pumpable shelf-stable suspension according to claim 1 , wherein the fibers are present in an amount of from 25-50 wt %.

4. The pumpable shelf-stable suspension according to claim 1 , wherein the disubstituted urea is present in an amount of from 0.05-10 wt %.

5. The pumpable shelf-stable suspension according to claim 1 , wherein the disubstituted urea is present in an amount of from 0.1-5 wt %.

6. The pumpable shelf-stable suspension according to claim 1 , wherein the organic phase comprises at least one member selected from the group consisting of mineral oil, crude oil, paraffin oil, benzene, petroleum, a naphthenic oil, an aromatic oil, an aliphatic hydrocarbon, an aromatic hydrocarbon, a fatty oil, a fatty acid ester, a silicone oil and a phthalate ester.

7. The pumpable shelf-stable suspension according to claim 1 , wherein the fibers comprise a material selected from the group consisting of a polyolefin, a polyester, a polyvinyl alcohol, a polyacetonitrile, a polyamide, polyethylene terephthalate, a polylactic acid, nylon 66 and nylon 6T.

8. The pumpable shelf-stable suspension according to claim 1 , wherein the fibers comprise at least one material selected from the group consisting of polyethylene, polypropylene, polyglycol adipate and polycaprolactam.

9. The pumpable shelf-stable suspension according to claim 1 , wherein the fibers comprise an inorganic material.

10. The pumpable shelf-stable suspension according to claim 9 , wherein the inorganic material comprises at least one member selected from the group consisting of glass, carbon, basalt and a metal.

11. The pumpable shelf-stable suspension according to claim 1 , wherein the fibers comprise a member selected from the group consisting of a renewable material, wherein said renewable material comprises a member selected from the group consisting of cellulose and lignin.

12. The pumpable shelf-stable suspension according to claim 1 , wherein the fibers have a diameter of from 2 μm to 2 mm subject to the proviso of an aspect ratio of not less than 10.

13. The pumpable shelf-stable suspension according to claim 1 , wherein the disubstituted urea is obtained from a monoisocyanate or polyisocyanate and a fatty amine.

14. The pumpable shelf-stable suspension according to claim 1 , wherein the disubstituted urea is obtained from oleylamine and diphenylmethane diisocyanate (MDI).

15. A method of preparing the pumpable shelf-stable suspension according to claim 1 comprising adding to a mixture of the fibers in the organic phase the disubstituted urea.

Assignees

• Basf Se

Inventors

• Feichtenschlager Bernhard
• Kierat Radoslaw
• Buchner Christian

Classifications

• C09D167/04

  Polyesters derived from hydroxycarboxylic acids, e.g. lactones (C09D167/06 takes precedence) · CPC title

• C09D129/04

  Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids · CPC title

• C08K5/29

  Compounds containing {one or more} carbon-to-nitrogen double bonds · CPC title

• C08K5/01

  Hydrocarbons {(C08K5/0091 takes precedence)} · CPC title

• C08K2201/018

  Additives for biodegradable polymeric composition · CPC title