Smear-free nonwoven composite abrasives
US9840648B2 · kind B2 · utility
0Cited by
17References
14Claims
0Family size
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Key dates
| Filing date | Dec 22, 2010 |
| Grant date | Dec 12, 2017 |
| Priority date | — |
| Expiry date | Mar 3, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K3/14
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A surface-treating article includes an organic matrix substantially engulfed by a binder that includes a reaction product of a blocked polyurethane prepolymer and a mixture of aromatic amines. The aromatic amines include polymethylene polyaniline having a functionality equal to or greater than 4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.