Textile structures comprising organopolysiloxane polyurea-polyurethane block copolymer

• US 20030176613A1
• Filed: 02/13/2003
• Published: 09/18/2003
• Est. Priority Date: 02/14/2002
• Status: Active Grant

• Current Assignee: Wacker-Chemie GmbH (Dr. Alexander Wacker Familiengesellschaft Mit Beschrã¤Nkter Haftung)
• Original Assignee: Wacker-Chemie GmbH (Dr. Alexander Wacker Familiengesellschaft Mit Beschrã¤Nkter Haftung)
• Inventors: Schaefer, Oliver, Mueller, Johann, Lehotkay, Thomas, Hohberg, Thomas, Moens, Philippe
• Granted Patent: US 6,815,069 B2
• Time in Patent Office: Days
• US Class Current: 528/28
• CPC Class Codes: C08G 18/0823 containing carboxylate salt groups or groups forming them
• CPC Class Codes: C08G 18/0895 Manufacture of polymers by continuous processes C08G18/0838 takes precedence
• CPC Class Codes: C08G 18/61 Polysiloxanes
• CPC Class Codes: C08G 77/458 containing polyurethane sequences
• CPC Class Codes: C09D 175/02 Polyureas
• CPC Class Codes: C09D 183/10 Block or graft copolymers containing polysiloxane sequences obtained by polymerising a compound having a carbon-to-carbon double bond on to a polysiloxane C09D151/08, C09D153/00
• CPC Class Codes: C09J 2423/046 in the substrate
• CPC Class Codes: D06M 15/564 Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
• CPC Class Codes: D06M 15/643 containing silicon in the main chain
• CPC Class Codes: D06M 15/6436 containing amino groups
• CPC Class Codes: D06M 15/657 containing fluorine
• CPC Class Codes: D06N 3/12 with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds , e.g. gelatine proteins
• CPC Class Codes: Y10T 428/2938 Coating on discrete and individual rods, strands or filaments
• CPC Class Codes: Y10T 428/31551 Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
• CPC Class Codes: Y10T 428/31663 As siloxane, silicone or silane

Abstract

Textile structures comprise fibers and an organopolysiloxane-polyurea-polyurethane block copolymer (A) of the general formula (1)

as a coating material or finishing material for fibers where R is a hydrocarbyl group, X is an alkylene group, A and Z are oxygen or primary or secondary amino groups, Y is a divalent hydrocarbyl group, D is an alkylene group, and Q is an end group, 1≦n≦4000, a≧1, 0≦b≦40, O≦C≦30, and d>O. The textile structures exhibit excellent hand, waterproofness, and water vapor permeability, and are stable to lanudering.

Claims

1. Textile structures comprising fibers and an organopolysiloxane-polyurea-(polyurethane) block copolymer (A) having the formula:

2. The textile structure of claim 1, wherein R is monovalent hydrocarbyl of 1 to 6 carbon atoms.

3. The textile structure of claim 1, wherein X is alkylene of 1 to 10 carbon atoms.

4. The textile structure of claim 2, wherein X is alkylene of 1 to 10 carbon atoms.

5. The textile structure of claim 1, wherein a is not more then 50.

6. The textile structure of claim 2, wherein a is not more then 50.

7. The textile structure of claim 3, wherein a is not more then 50.

8. The textile structure of claim 1, wherein n is from 3 to 400.

9. The textile structure of claim 1 wherein said organopolysiloxane-polyurea-(polyurethane) block copolymer is an organopolysiloxane-polyurea block copolymer.

10. A process for coating or finishing fiber, yarn and/or textile fabric, comprising applying thereto block copolymer (A) of claim 1.

11. A process for coating or finishing fiber, yarn and/or textile fabric, comprising applying thereto block copolymer (A) of claim 2.

12. A process for coating or finishing fiber, yarn and/or textile fabric, comprising applying thereto block copolymer (A) of claim 3.

13. A process for coating or finishing fiber, yarn and/or textile fabric, comprising applying thereto block copolymer (A) of claim 5.

14. A process for coating or finishing fiber, yarn and/or textile fabric, comprising applying thereto block copolymer (A) of claim 8.

15. The process of claim 10, wherein said block copolymer (A) is applied to a fabric to form a continuous coating on at least one surface thereof.