Flame retardant thermoplastic molding compositions of high electroconductivity
US4596669A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 1982 |
| Grant date | Jun 24, 1986 |
| Priority date | — |
| Expiry date | Nov 22, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L27/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Flame retardant, thermoplastic molding compositions of high electroconductivity comprising between about 2% and about 45% by weight of finely divided conductive carbon black particles substantially uniformly dispersed within a cementitious matrix having a chlorine content of at least about 24% by weight and composed predominantly of substantially thermoplastic resins not substantially less than half of which by weight are vinyl chloride polymers which have a vinyl chloride content of at least about 70% by weight and K-values between about 45 and about 70, and wherein said cementitious matrix also contains from about 1% to about 15% by weight of a well balanced lubricant/stabilizer combination comprising lubricants which are solid at temperatures up to at least about 50.degree. C., together with effective stabilizers, are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.