Abrasive tape, process for producing it, and coating agent for abrasive tape

• US 6,165,061 A
• Filed: 01/07/1999
• Issued: 12/26/2000
• Est. Priority Date: 04/10/1995
• Status: Expired due to Term

• Current Assignee: Dai Nippon Printing (Dai Nippon Printing Company Limited)
• Original Assignee: Dai Nippon Printing (Dai Nippon Printing Company Limited)
• Inventors: Miyachi, Takaki, Suzuura, Yasuki, Fujii, Kazuhito, Yamaguchi, Masahisa, Okawa, Kojiro
• Primary Examiner(s): Eley, Timothy V.
• Application Number:
  US09/276,088
• Time in Patent Office: 719 Days
• Field of Search: 51/293, 51/294, 51/297, 51/300, 51/307, 51/308, 51/309, 451/526, 451/533, 451/534, 451/539
• US Class Current: 451/533
• CPC Class Codes: B24B 19/226 of the ends of optical fibres
• CPC Class Codes: B24D 11/00 Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
• CPC Class Codes: B24D 3/28 Resins or natural or synthetic macromolecular compounds B24D3/22 takes precedence

Abstract

Provided are an abrasive tape suitable for finishing of surfaces or the like of precision components such as optical connector ferrules and semiconductor wafers, and a process for producing it. A coating agent in which abrasive particles having an average particle size in the range of 1 to 200 mμ are dispersed in a binder resin solution. The coating agent is applied, with intervention of a primer layer if necessary, onto a base for abrasive tape to form an abrasive layer, thus obtaining an abrasive tape.

Claims

1. An abrasive tape comprising:

a base; and

an abrasive layer formed on the base;

wherein the abrasive layer is formed from a coating agent in which colloidal silica particles of an average particle size in the range of 10 to 100 mμ

of a colloidal silica sol are dispersed in a binder resin solution.

2. The abrasive tape according to claim 1, wherein

said binder resin solution has a silicone resin or a silicone based resin.

3. The abrasive tape according to claim 1, wherein

particle diameters of the abrasive particles in the abrasive layer are between 50 and 800 mμ

.

4. An abrasive tape comprising:

a base; and

an abrasive layer formed on the base;

wherein said abrasive layer has colloidal silica particles of an average particle size in the range of 1 to 200 mμ

of a colloidal silica sol and a binder for binding the abrasive particles.

5. The abrasive tape according to claim 4, wherein

said binder is a binder having siloxane bonding.

6. The abrasive tape according to claim 4, wherein

a total ray transmittance of the abrasive layer is 60 to 95% and a haze thereof is 1 to 70%.

7. The abrasive tape according to claim 4, wherein

a primer layer is provided between the base for abrasive tape and the abrasive layer.