Solutions of polyvinyl acetals
US4126597A · kind A · utility
5Cited by
7References
59Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 21, 1977 |
| Grant date | Nov 21, 1978 |
| Priority date | — |
| Expiry date | Mar 21, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31688
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Polyvinyl formal dissolved in a solvent comprising certain monoalkyl ethers of diethylene glycol and triethylene glycol or the monophenyl ether of ethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol or propylene glycol. In some cases it is necessary to have a diluent such as an aromatic hydrocarbon present.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.