Seeding resins for enhancing the crystallinity of polymeric substructures

• US 8,383,007 B2
• Filed: 05/13/2010
• Issued: 02/26/2013
• Est. Priority Date: 06/14/2005
• Status: Expired due to Fees

• Current Assignee: Siemens Energy Incorporated (Siemens AG)
• Original Assignee: Siemens Energy Incorporated (Siemens AG)
• Inventors: Smith, James D. B., Stevens, Gary, Wood, John W.
• Primary Examiner(s): WU, SHEAN CHIU
• Application Number:
  US12/779,380
• Publication Number:
  US 20100213413A1
• Time in Patent Office: 1,020 Days
• Field of Search: 252/299.01, 252/299.5, 252/299.61, 427/407.1, 427/407.2, 428/343, 257/720
• US Class Current: 252/299.01
• CPC Class Codes: B32B 17/04 bonded with or embedded in a plastic substance
• CPC Class Codes: B32B 19/02 the layer of fibres or particles being impregnated or embedded in a plastic substance
• CPC Class Codes: B32B 19/06 next to a fibrous or filamentary layer
• CPC Class Codes: B32B 2250/02 2 layers
• CPC Class Codes: B32B 2262/101 Glass fibres
• CPC Class Codes: B32B 2307/206 Insulating
• CPC Class Codes: B32B 2307/302 Conductive
• CPC Class Codes: B32B 2307/306 Resistant to heat
• CPC Class Codes: B32B 2457/04 Insulators
• CPC Class Codes: C08L 101/00 Compositions of unspecified macromolecular compounds
• CPC Class Codes: C08L 2666/14 Macromolecular compounds according to C08L59/00 - C08L87/00; Derivatives thereof
• CPC Class Codes: C09D 201/00 Coating compositions based on unspecified macromolecular compounds
• CPC Class Codes: Y10T 428/24994 Fiber embedded in or on the surface of a polymeric matrix
• CPC Class Codes: Y10T 428/249986 Void-containing component contains also a solid fiber or solid particle
• CPC Class Codes: Y10T 428/28 Web or sheet containing structurally defined element or component and having an adhesive outermost layer
• CPC Class Codes: Y10T 442/2418 Coating or impregnation increases electrical conductivity or anti-static quality
• CPC Class Codes: Y10T 442/2992 Coated or impregnated glass fiber fabric
• CPC Class Codes: Y10T 442/50 FELT FABRIC

Abstract

The present invention provides for a resin mixture that comprises a highly structured resin 40 and a less structured resin 50. The highly structured resin 40 and the less structured resin 50 are mixed to a ratio of between 1:9 and 4:1 by volume, with a more particular ratio of 1:5 to 3:1. The highly structured resin forms ordered micro regions and the ordered micro regions impose order on surrounding less structured resin molecules. The micro regions are essentially groups of the HS resin that will naturally form order structures.

Claims

1. A method of forming an ordered resin mixture comprising:

combining a highly structured resin comprising highly structured resin molecules with a less structured resin comprising less structured resin molecules to form a resin mixture with a ratio of the highly structured resin to the less structured resin of from 1;

9 to 4;

1 by volume;

wherein the combining forms a plurality of ordered micro regions in the resin mixture comprising the highly structured resin molecules and the less structured resin molecules;

wherein a plurality of highly structured resin molecules impose order on a plurality of surrounding less structured resin molecules in the resin mixture; and

wherein the plurality of surrounding less structured resin molecules adopt an orientation similar to that of the plurality of highly structured resin molecules in the resin mixture.

2. The method of claim 1, further comprising adding a plurality of cross-linking agents to the resin mixture to covalently link the plurality of highly structured resin molecules to respective ones of the plurality of surrounding less structured resin molecules.

3. The method of claim 2, further comprising activating the cross-linking agents to stabilize the plurality of ordered micro regions.

4. The method of claim 1, wherein the plurality of the highly structured resin molecules and the plurality of surrounding less structured resin molecules each comprise epoxy functional groups at end chains thereof such that the plurality of highly structured resin molecules have an affinity for the plurality of surrounding less structured resin molecules.

5. The method of claim 1, wherein the combining is done by allowing one of the highly structured resin and the less structured resin to diffuse into the other of the highly structured resin and the less structured resin.

6. The method of claim 1, wherein the combining is done by applying the high structured resin as a layer on a material and impregnating the material with the less structured resin.

7. The method of claim 1, wherein the combining is done by mechanically mixing the highly structured resin and the less structured resin.

8. The method of claim 1, wherein the highly structured resin comprises a liquid crystal thermoset resin.

9. The method of claim 1, wherein the ratio of highly structured resin to less structured resin is 3:

1 by volume.

10. The method of claim 1, wherein the forming comprises applying an external field of force to the plurality of the highly structured resin molecules to pull the plurality of surrounding less structured resin molecules into alignment with the plurality of the highly structured resin molecules.

11. The method of claim 1, further comprising adding a plurality of high thermal conductivity (HTC) fillers to the resin mixture.

12. The method of claim 11, wherein the highly structured resin comprises a plurality of mesogenic groups, and further comprising aligning the plurality of HTC fillers with the plurality of mesogenic groups of the highly structured resin.

13. A method of forming an ordered resin mixture comprising:

combining a highly structured resin and a less structured resin to form a resin mixture, wherein an amount of the highly structured resin in the resin mixture is least 25% by volume;

wherein the combing imparts a degree of order from the highly structured resin to the less structured resin system; and

wherein the combining forms a plurality of interconnecting ordered micro regions in the resin mixture.

14. The method of claim 13, wherein the combining is done by allowing one of the highly structured resin and the less structured resin to diffuse into the other of the highly structured resin and the less structured resin.

15. The method of claim 13, wherein the combining is done by applying the highly structured resin as a layer on a material and impregnating the material with the less structured resin.

16. The method of claim 13, wherein the combining is done by mechanically mixing the highly structured resin and the less structured resin.

17. A method of forming an ordered resin mixture comprising:

placing a layer of highly structured resin comprising highly structured resin molecules onto a material;

impregnating a less structured resin comprising less structured resin molecules into the material;

allowing the highly structured resin and the less structured resin to diffuse into one another to form ordered micro regions in the resin mixture comprising the highly structured resin molecules and the less structured resin molecules;

wherein a plurality of the highly structured resin molecules impose order on a plurality of surrounding less structured resin molecules; and

wherein the plurality of the surrounding less structured resin molecules adopt an orientation similar to that of the plurality of the highly structured resin molecules.

18. The method of claim 17, wherein the material is a composite tape having a mica layer, a glass layer, and a mica-glass interface.

19. The method of claim 18, wherein the placing of the layer of the highly structured resin is done at the mica glass interface.

20. The method of claim 17, further comprising adding high thermal conductivity materials to the resin mixture.