Patent US2884265A successfully refreshed from Google Patents.
Patent US3251827A successfully refreshed from Google Patents.
US3251827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of sugar esters
Assignee: Bayer AG
•
Filing: 1960-10-04
•
Granted: 1966-05-17
•
Expires: 1980-10-04
Abstract
No abstract record available.
Inventors
- 👤 Schnell Hermann
- 👤 Dohm Heinz
- 👤 Nentwig Joachim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:12
CPC Classifications
C; C07; C07H; C07H13/00; C07H13/02; C07H13/04; C07H13/06; C07H15/00; C07H15/18; C11; C11C; C11C3/00; C11C3/04; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03; Y10S516/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A PROCESS FOR PREPARING AN ESTER OF A CARBOXYLIC ACID AND A SUCCHARIDE COMPRISING HEATING ONE MOL OF A COMPONENT SELECTED FROM THE GROUP CONSISTING OF NONREDUCING OLIGOSACCHARIDE AND THE KETAL OF A MONOSACCHARIDE WITH 1-7 MOLS OF A CARBOXYLIC ACID ARYL ESTER OBTAINED FROM (1) CARBOXYLIC ACID AND (2) A MEMBER SELECTED FROM THE GROUP CONSISTING OF A PHENOL, METHYL PHENOL, CHLORO PHENOL, METHOXY PHENOL, AND NAPHTHOL, IN THE PRESENCE OF A CATALYTIC AMOUNT OF AN INTERESTERIFICATION CATALYST AT A TEMPERATURE OF ABOUT 40-190*C.; AND RECOVERING THE RESULTING PRODUCT.
Claim 2
Dependent Claim
90 words
A PROCESS FOR PREPARING AN ESTER OF A CARBOXYLIC ACID AND A SUCCHARIDE COMPRISING HEATING ONE MOL OF A COMPONENT SELECTED FROM THE GROUP CONSISTING OF NONREDUCING OLIGOSACCHARIDE AND THE KETAL OF A MONOSACCHARIDE WITH 1-7 MOLS OF A CARBOXYLIC ACID ARYL ESTER OBTAINED FROM (1) CARBOXYLIC ACID AND (2) A MEMBER SELECTED FROM THE GROUP CONSISTING OF A PHENOL, METHYL PHENOL, CHLORO PHENOL, METHOXY PHENOL, AND NAPHTHOL, IN THE PRESENCE OF A CATALYTIC AMOUNT OF AN INTERESTERIFICATION CATALYST AT A TEMPERATURE OF ABOUT 40-190*C.; AND RECOVERING THE RESULTING PRODUCT.
References Cited (Backward Citations)
US2013034A
Cited
US2628249A
Cited
US2700022A
Cited
US2857374A
Cited
US2893990A
Cited
US3023183A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-16 | 1969-11-15 | 1970-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-16 | 1973-11-15 | 1974-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-16 | 1977-11-15 | 1978-05-17 | $7700.00 | Window Closed / Lapsed |