MIXTURE, ESPECIALLY SPINNING SOLUTION

• US 20110040029A1
• Filed: 08/14/2008
• Published: 02/17/2011
• Est. Priority Date: 08/16/2007
• Status: Active Grant

• Current Assignee: Helfenberger Immobilien, LLC
• Original Assignee: Helfenberger Immobilien, LLC
• Inventors: Glaser, Josef
• Granted Patent: US 8,709,272 B2
• Time in Patent Office: Days
• US Class Current: 524/612
• CPC Class Codes: C08K 2201/014 Additives containing two or more different additives of the same subgroup in C08K
• CPC Class Codes: C08K 3/04 Carbon
• CPC Class Codes: C08K 3/10 Metal compounds
• CPC Class Codes: C08K 3/28 Nitrogen-containing compounds
• CPC Class Codes: C08K 3/30 Sulfur-, selenium- or tellurium-containing compounds
• CPC Class Codes: C08K 3/38 Boron-containing compounds
• CPC Class Codes: D01F 1/10 Other agents for modifying properties
• CPC Class Codes: D01F 2/00 Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
• CPC Class Codes: D01F 2/10 Addition to the spinning solution or spinning bath of substances which exert their effect equally well in either

Abstract

A mixture includes a polymer solution, especially a cellulose solution, a first additive in the form of an inorganic lubricant and/or stabilizer, for example graphite, and a second additive as an adsorbent, for example activated carbon. The inorganic lubricants and/or stabilizers do not weaken the positive properties of the adsorbent but can even improve them. The mixture can be used to produce fibers (7) or moldings.

Claims

1. Mixture that contains a polymer solution, in particular a cellulose solution, with at least a first and a second additive, characterized in that the first additive is an inorganic lubricating and/or stabilizing agent.

2. Mixture according to claim 1, wherein the inorganic lubricating and/or stabilizing agent can be selected from the group that consists of graphite, molybdenum sulfide, boron nitride and/or mixtures of two or more of these components.

3. Mixture according to claim 1, wherein the second additive is an adsorption agent.

4. Mixture according to claim 1, wherein the second additive can be selected from the group that consists of activated carbon, diamond, gold, silver, ceramic, carbon black, stone dust, and/or mixtures of two or more of these components.

5. Application of the mixture according to claim 1 for the production of a fiber (7).

6. Application according to claim 5, wherein the fiber (7) is produced by mixing the first and second additives and optionally other additives in the polymer solution and by subsequent spinning of the mixture.

7. Application according to claim 6, wherein a main stream (2) that consists of essentially pure polymer solution and a partial stream (3) that consists of first and second additives and optionally other additives that is separated from the main stream are produced, and wherein the main stream (2) and the partial stream (3) are brought together as a mixture before the spinning.

8. Application according to claim 6, wherein the mixture is spun by means of a nozzle (1) and wherein the main stream (2) and the partial stream (3) are brought together directly before the nozzle (1).

9. Application according to claim 5, wherein the first and the second additives and optionally other additives are distributed essentially uniformly over the cross-section of the fibers (7).

10. Application of the mixture according to claim 1 for the production of a molded part.

16. Mixture according to claim 2, wherein the second additive is an adsorption agent.

17. Application according to claim 7, wherein the mixture is spun by means of a nozzle (1) and wherein the main stream (2) and the partial stream (3) are brought together directly before the nozzle (1).

11. Fiber that contains at least one polymer, in particular that contains cellulose, and at least a first and a second additive, wherein the first additive is an inorganic lubricating and/or stabilizing agent.

13. Fiber or molded part according to claim 11, wherein the second additive is an adsorption agent.

14. Fiber or molded part according to claim 11, wherein the second additive can be selected from the group that consists of activated carbon, diamond, gold, silver, ceramic, carbon black, stone dust and/or mixtures that consist of two or more of these components.

15. Fiber or molded part according to claim 11, wherein the inorganic lubricating and/or stabilizing agent can be selected from the group that consists of graphite, molybdenum sulfide, boron nitride, and/or mixtures that consist of two or more of these components.

12. Molded part that contains at least one polymer, in particular that contains cellulose, and at least a first and a second additive, wherein the first additive is an inorganic lubricating and/or stabilizing agent.

18. Fiber or molded part according to claim 12, wherein the second additive is an adsorption agent.