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US3240740A
Expired / Lapsed
US
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Aqueous dispersions of self-crosslinking copolymers
Assignee: Bayer AG
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Filing: 1960-05-03
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Granted: 1966-03-15
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Expires: 1980-05-03
Abstract
No abstract record available.
Inventors
- 👤 Knapp Karl-Heinrich
- 👤 Berlenbach Wilhelm
- 👤 Dinges Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:54
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; C; C08; C08F; C08F20/00; C08F20/02; C08F20/52; C08F20/54; C08F20/56; C08F20/62; C08F8/00; C08F8/44; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/285; D06M15/29; C08F220/00; C08F220/02; C08F220/10; C08F220/12; C08F220/16; C08F220/18; C08F220/1804
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A STORAGE-STABLE AQUEOUS DISPERSION OF A COPOLYMER OF (1) 0.5 - 10% BY WEIGHT OF A MONOETHYLENICALLY UNSATURATED MONOMER HAVING A HYDROPHILIC GROUP SELECTED FROM THE GROUP CONSISTING OF CARBOXYLIC, HYDROXY, AMIDE, SULFONIC ACID, AND POLYGLYCOL ETHER GROUPS, (2) 0.5-15% BE WEIGHT OF A MONOMER OF THE FORMULA:
Claim 2
Dependent Claim
48 words
A STORAGE-STABLE AQUEOUS DISPERSION OF A COPOLYMER OF (1) 0.5 - 10% BY WEIGHT OF A MONOETHYLENICALLY UNSATURATED MONOMER HAVING A HYDROPHILIC GROUP SELECTED FROM THE GROUP CONSISTING OF CARBOXYLIC, HYDROXY, AMIDE, SULFONIC ACID, AND POLYGLYCOL ETHER GROUPS, (2) 0.5-15% BE WEIGHT OF A MONOMER OF THE FORMULA:
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |