Quality control procedure for determining particle concentration in polymers
US4433075A · kind A · utility
0Cited by
0References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 12, 1982 |
| Grant date | Feb 21, 1984 |
| Priority date | — |
| Expiry date | Nov 12, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/442
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An expeditious method has been found for measuring the concentration of particles found in a polymer composition such as in wire and cable jackets. This procedure involves dissolving the polymer composition in a suitable solvent so that the particles form a dispersion in the solvent. The concentration of these particles in the solvent is then measured through transmission spectroscopy and this value is related to the concentration of the particles present in the original polymer body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.