METAL PASTE COMPOSITION

• US 20140008588A1
• Filed: 03/06/2012
• Published: 01/09/2014
• Est. Priority Date: 03/18/2011
• Status: Active Grant

• Current Assignee: Research Institute of Industrial Science and Technology, Sumitomo Seika Chemicals Company Limited (Sumitomo Chemical Company Limited)
• Original Assignee: Osaka Municipal Technical Research Institute, Sumitomo Seika Chemicals Company Limited (Sumitomo Chemical Company Limited)
• Inventors: Fujimoto, Nobutaka, Kawakita, Tomoki, Yamamoto, Mari, Miyabara, Ryou, Nakamoto, Masami, Ohno, Toshinobu, Kashiwagi, Yukiyasu
• Granted Patent: US 9,414,487 B2
• Time in Patent Office: Days
• US Class Current: 252/514
• CPC Class Codes: C08K 3/08 Metals
• CPC Class Codes: C08K 5/109 of carbonic acid , e.g. R-O-C(=O)-O-R
• CPC Class Codes: C08K 5/3415 Five-membered rings
• CPC Class Codes: H01B 1/22 the conductive material comprising metals or alloys
• CPC Class Codes: H05K 1/092 Dispersed materials, e.g. conductive pastes or inks
• CPC Class Codes: H05K 1/095 for polymer thick films, i.e. having a permanent organic polymeric binder

Abstract

The present invention provides a metal paste composition which can obtain the calcined bodies having low volume resistivity in a wiring substrate after calcining. More specifically, the present invention provides a metal paste composition comprising a metal, an aliphatic polycarbonate, and an organic solvent.

Claims

1. A metal paste composition comprising a metal, an aliphatic polycarbonate, and an organic solvent.

2. The metal paste composition according to claim 1, wherein the aliphatic polycarbonate is an aliphatic polycarbonate in which an epoxide and carbon dioxide are polymerized.

3. The metal paste composition according to claim 1, wherein the aliphatic polycarbonate is at least one selected from the group consisting of polyethylene carbonate and polypropylene carbonate.

4. The metal paste composition according to claim 1, wherein the amount of the aliphatic polycarbonate used is 0.001 to 10 parts by mass based on 100 parts by mass of the metal.

5. The metal paste composition according to claim 1, wherein the metal is at least one selected from the group consisting of gold, silver, platinum, and an alloy thereof.

6. The metal paste composition according to claim 1, wherein the organic solvent is at least one selected from the group consisting of a-terpineol, N-methyl-2-pyrrolidone, and propylene carbonate.

7. The metal paste composition according to claim 1, wherein the amount of organic solvent used is 0.001 to 50 parts by mass based on 100 parts by mass of the metal.