Monodispersed glycol suspension of fine inorganic oxide particles having excellent dispersion stability and a polyester film containing said particles
US5863647A · kind A · utility
4Cited by
19References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1994 |
| Grant date | Jan 26, 1999 |
| Priority date | — |
| Expiry date | Feb 24, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A monodispersed glycol suspension having excellent dispersion stability at a pH within a wide range, comprising a monodispersed suspension in a glycol of spherical fine particles of an amorphous inorganic oxide having an average particle diameter of 0.15 to 5 micrometers and a relative particle size standard deviation of 1.0 to 1.5 and containing glycol bonded to its surface in amounts of 0.003 to 5 millimoles glycol, per gram of fine particles. This monodispersed suspension is useful as a raw material for the production of a polyester film having improved slipperiness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.