Monoesters and macrocyclic diester of phthalic acid and synthesis thereof
US5990321A · kind A · utility
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7Claims
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Key dates
| Filing date | May 18, 1999 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | May 18, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/915
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Monoesters and macrocyclic diesters of 2,2,4-trimethyl-1,3-pentanediol and phthalic acid or a derivative thereof are described. Methods by which such monoesters and diesters may be prepared are also described. The mono- and diesters according to the invention are useful in the preparation of clear, hard thermoplastic polymers. The thermoplastic polymers are useful in coatings, inks, reinforced plastics and packaging materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.