US4191838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acryloxy-alkylpropanals and methacryloxy-alkylpropanals
Assignee: BASF SE
•
Filing: 1978-05-01
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Granted: 1980-03-04
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Expires: 1998-05-01
Abstract
Abstract Acryloxy- and methacryloxy-alkyl-propanals and a process for their manufacture by esterifying the corresponding β-hydroxyalkylpropanals with acrylic acid and methacrylic acid, respectively, in the presence of an acid esterification catalyst and of an inert diluent.
Inventors
- 👤 Franz Merger
- 👤 Friedrich Towae
- 👤 Erich Penzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:13
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/26; C08F20/28
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
59 words
An acryloxy-alkylpropanal or methacryloxy-alkylpropanal of the formula (1) ##STR3## where R 1 is a substituent selected from --H and CH 3 , R 2 is a substituent selected from --H and alkyl of 1 to 3 carbon atoms, R 3 is alkyl of 1 or 2 carbon atoms and R 4 is alkyl of 1 to 4 carbon atoms.
Claim 2
Dependent Claim
59 words
An acryloxy-alkylpropanal or methacryloxy-alkylpropanal of the formula (1) ##STR3## where R 1 is a substituent selected from --H and CH 3 , R 2 is a substituent selected from --H and alkyl of 1 to 3 carbon atoms, R 3 is alkyl of 1 or 2 carbon atoms and R 4 is alkyl of 1 to 4 carbon atoms.
Claim 3
Dependent Claim
1 words
Acryloxypivalaldehyde.
Claim 4
Dependent Claim
1 words
Acryloxypivalaldehyde.
Claim 5
Dependent Claim
1 words
Methacryloxypivalaldehyde.
Claim 6
Dependent Claim
1 words
Methacryloxypivalaldehyde.
Claim 7
Dependent Claim
1 words
3-Acryloxy-2,2,4-trimethylpentanal.
Claim 8
Dependent Claim
1 words
3-Acryloxy-2,2,4-trimethylpentanal.
Claim 9
Dependent Claim
1 words
2-Acryloxymethyl-2-methylpentanal.
Claim 10
Dependent Claim
1 words
2-Acryloxymethyl-2-methylpentanal.
References Cited (Backward Citations)
GB645956A
Cited
US2638479A
Cited
US2947786A
Cited
US3251876A
Cited
US3374267A
Cited
GB1161095A
Cited
US3673258A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-03-04 | 1983-09-03 | 1984-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-04 | 1987-09-03 | 1988-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-04 | 1991-09-03 | 1992-03-04 | $7700.00 | Window Closed / Lapsed |