Solid ester products of sterically hindered polyhydroxymonocarboxylic acids
US4912187A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 29, 1988 |
| Grant date | Mar 27, 1990 |
| Priority date | — |
| Expiry date | Jan 29, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C69/675
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An ester of a sterically hindered polyhydroxymonocarboxylic acid and a polyhydroxy-containing component, which ester is a solid at ambient temperature conditions, comprising the condensation product of said acid selected from the group consisting of dimethylolpropionic acid, trimethylolacetic acid, and mixtures thereof, and said polyhydroxy-containing component selected from the group consisting of pentaerythritol, trimethylolethane, and mixtures thereof, said product having a mol ratio of acid to polyhydroxy-containing component of at least about 1.75, a ring and ball softening point of at least about 50.degree. C., and an acid number of less than about 40. An ester of a sterically hindered polyhydroxymonocarboxylic acid and a polyhydroxy-containing component, which ester is a solid at ambient temperature conditions, comprising the condensation product of said acid selected from the group consisting of dimethylolpropionic acid, trimethylolacetic acid, and mixtures thereof, and pentaerythritol, said product having a mol ratio of acid to pentaerythritol of at least about 0.75, a ring and ball softening point of at least about 50.degree. C., and an acid number less than about 40. An …
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