Halogen-free melt processable silicon-imide wire coating compositions having low smoke values
US4981894A · kind A · utility
10Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 27, 1989 |
| Grant date | Jan 1, 1991 |
| Priority date | — |
| Expiry date | Jul 27, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31681
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Melt processable halogen-free low smoke wire coating compositions are provided which utilize a polyimide-siloxane, an effective amount of a plasticizer and hydrated zinc borate. The melt processable halogen-free low smoke blends can satisfy the low smoke requirements for plenum wire as shown by an Ohio State University test value of total smoke after 5 minutes of less than 100.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.