Abrasive tape
US5135546A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 1990 |
| Grant date | Aug 4, 1992 |
| Priority date | — |
| Expiry date | Aug 9, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24D3/28
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An abrasive tape comprises a flexible substrate and an abrasive layer, which is overlaid on the flexible substrate and which is primarily constituted of abrasive grains and a binder. The abrasive grains are composed of first abrasive grains and second abrasive grains. The first abrasive grains and the second abrasive grains are constituted of at least one type of angular grains which are selected from the group consisting of Cr.sub.2 O.sub.3, SiC, and Al.sub.2 O.sub.3, and which are obtained from a pulverizing process. The mean grain diameter of the first abrasive grains falls within the range of 6 .mu.m to 9 .mu.m. The mean grain diameter of the second abrasive grains falls within the range of 4 .mu.m to 6 .mu.m. The binder is contained in a proportion falling within the range of 10% by weight to 30% by weight with respect to the abrasive grains. A 40% by weight to 65% by weight portion of the binder is constituted of a polyisocyanate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.