Self-extinguishing, non-dripping, phenolphthalein polyester molding compositions
US4057532A · kind A · utility
2Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 1976 |
| Grant date | Nov 8, 1977 |
| Priority date | — |
| Expiry date | Feb 27, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Self-extinguishing, non-dripping, melt processible copolyesters of reduced toxicity are provided from a mixture of diols comprising from about 25 to 60 mole percent of phenolphthalein and from about 75 to 40 mole percent of ethylene glycol and a dicarboxylic acid comprising isophthalic acid and/or terephthalic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.