Flame retardant styrenic molding compositions
US4080404A · kind A · utility
6Cited by
2References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 12, 1976 |
| Grant date | Mar 21, 1978 |
| Priority date | — |
| Expiry date | Apr 12, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S260/24
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed herein are polyblend molding compositions which comprise (A) poly(styrene/acrylonitrile/methylmethacrylate) matrix polymer; (B) polychloroprene rubber which is grafted with monomers of the type used to prepare the matrix; (C) a metal oxide; and (D) smoke suppressants. Specimens molded from these polyblends have a UL-94 rating of at least V-1 and a smoke level of less than 360 D.sub.m Flaming as measured using the NBS smoke test.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.