Polybutylene terephthalate
US4014858A · kind A · utility
27Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 12, 1975 |
| Grant date | Mar 29, 1977 |
| Priority date | — |
| Expiry date | May 12, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/183
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Reaction of terephthalic acid and butane diol using a tetravalent tin catalyst having the organo-to-tin linkage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.