Patterning on surface with high thermal conductivity materials

• US 7,651,963 B2
• Filed: 04/03/2006
• Issued: 01/26/2010
• Est. Priority Date: 04/15/2005
• Status: Active Grant

• Current Assignee: Siemens Energy Incorporated (Siemens AG)
• Original Assignee: Siemens Energy Incorporated (Siemens AG)
• Inventors: Wood, John W., Stevens, Gary, Smith, James D. B.
• Primary Examiner(s): Piziali; Andrew T
• Application Number:
  US11/396,999
• Publication Number:
  US 20060234576A1
• Time in Patent Office: 1,394 Days
• Field of Search: 442/110, 442/111, 442/117, 442/180
• US Class Current: 442/117
• CPC Class Codes: B32B 2255/12 on paper layer
• CPC Class Codes: B32B 2255/24 Organic non-macromolecular coating
• CPC Class Codes: B32B 2260/021 Fibrous or filamentary layer layers of natural mineral fibres or particles being impregnated in a plastic substance B32B19/02
• CPC Class Codes: B32B 2260/028 Paper layer
• CPC Class Codes: B32B 2260/046 Synthetic resin
• CPC Class Codes: B32B 2264/104 Oxysalt, e.g. carbonate, sulfate, phosphate or nitrate particles
• CPC Class Codes: B32B 2264/108 Carbon, e.g. graphite particles
• CPC Class Codes: B32B 2307/206 Insulating
• CPC Class Codes: B32B 2307/302 Conductive
• CPC Class Codes: B32B 2307/54 Yield strength; Tensile strength
• CPC Class Codes: B32B 2405/00 Adhesive articles, e.g. adhesive tapes labels B32B2519/00
• CPC Class Codes: B32B 2457/00 Electrical equipment
• CPC Class Codes: B32B 2554/00 Paper of special types, e.g. banknotes
• CPC Class Codes: B32B 2581/00 Seals; Sealing equipment; Gaskets
• CPC Class Codes: B32B 29/02 next to a fibrous or filamentary layer
• CPC Class Codes: B32B 29/06 specially treated, e.g. surfaced, parchmentised
• CPC Class Codes: D21H 13/44 Flakes, e.g. mica, vermiculite
• CPC Class Codes: D21H 17/67 Water-insoluble compounds, e.g. fillers, pigments
• CPC Class Codes: D21H 17/69 modified, e.g. by association with other compositions prior to incorporation in the pulp or paper
• CPC Class Codes: D21H 19/64 Inorganic compounds
• CPC Class Codes: D21H 21/54 : being spherical, e.g. microcapsules, beads
• CPC Class Codes: Y10T 428/24793 : Comprising discontinuous or differential impregnation or bond
• CPC Class Codes: Y10T 428/24851 : Intermediate layer is discontinuous or differential
• CPC Class Codes: Y10T 428/24893 : including particulate material
• CPC Class Codes: Y10T 442/2418 : Coating or impregnation increases electrical conductivity or anti-static quality
• CPC Class Codes: Y10T 442/2426 : Elemental carbon containing
• CPC Class Codes: Y10T 442/2475 : Coating or impregnation is electrical insulation-providing, -improving, or -increasing, or conductivity-reducing
• CPC Class Codes: Y10T 442/2992 : Coated or impregnated glass fiber fabric

Abstract

The present invention provides for high thermal conductivity paper that comprises a host matrix (10), and high thermal conductivity materials (12) added to a surface of the host matrix in a specific pattern (12). The high thermal conductivity materials are comprised of one or more of nanofillers, diamond like coatings directly on the host matrix, and diamond like coatings on the nanofillers. In particular embodiments the specific pattern comprises one or more of a grid, edging, banding centering and combinations thereof and the high thermal conductivity materials cover 15-55% of the surface of the host matrix. Multiple surfaces, including sub layers may have patterning.

Claims

1. An electrically insulating tape comprising:

a mica paper layer;

a glass fiber backing layer;

a plurality of high thermal conductivity materials disposed within the mica paper layer in a specific pattern;

wherein the specific pattern comprises at least one of a grid, edging, banding, centering, or combinations thereof.

2. The electrically insulating tape of claim 1, wherein the plurality of high thermal conductivity materials comprises at least one of nanofillers, diamond like coatings, or diamond like coatings on nanofillers.

3. The electrically insulating tape of claim 1, wherein the plurality of high thermal conductivity materials are disposed within the mica paper layer in a specific pattern, and wherein the specific pattern comprises a staggered configuration.

4. The electrically insulating tape of claim 1, wherein the high thermal conductivity materials have an aspect ratio in the range of from 3 to 100.