Stable solutions of prepolymers of thiodi(phenylcyanate) and laminating method employing same
US4940848A · kind A · utility
12Cited by
4References
8Claims
0Family size
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Key dates
| Filing date | Nov 10, 1988 |
| Grant date | Jul 10, 1990 |
| Priority date | — |
| Expiry date | Nov 10, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K1/0346
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Stable prepolymer solutions are made from partially cyclotrimerized 4,4'-thiodi(phenylcyanate) dissolved in cyclopentanone. The prepolymer solutions are used to make flame retardant and thermally stable laminates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.