US3288740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of stable emulsions from nu-methylol substituted amides of acrylic acid or the ethers of such nu-methylolamides
Assignee: BASF Schweiz AG
•
Filing: 1963-07-03
•
Granted: 1966-11-29
•
Expires: 1983-07-03
Abstract
No abstract record available.
Inventors
- 👤 Maeder Arthur
- 👤 Nachbur Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:27
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/20; C; C08; C08F; C08F20/00; C08F20/02; C08F20/52; C08F20/54; C08F20/58; C08F20/62; C08F22/00; C08F22/36; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/285; D06M15/29
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A LINEAR COPOLYMER OF ADDITIVELY COMBINED UNITS OF (A) 0.25 TO 10 PERCENT BY WEIGHT OF AN ALKALINE EARTH METAL SALT OF AN A:B-MONOETHYLENICALLY UNSATURATED MONOCARBOXYLIC ACID CONTAINING 3 TO 4 CARBON ATOMS, (B) 0.25 TO 30 PERCENT BY WEIGHT OF AN AMIDE SELECTED FROM THE GROUP CONSISTING OF AN N-METHYLOLAMIDE AND AN N-METHLOLAMIDE ETHER DERIVED FROM AN ALIPHATIC ALCOHOL HAVING AT MOST 4 CARBON ATOMS, THE ACID OF SAID AMIDE BEING AN AT MOST DICARBOXYLIC ACID WHICH IS A-B-ETHYLENICALLY UNSATURATED AND CONTAINS 3 TO 5 CARBON ATOMS, AND (C) 99.5 TO 60 PERCENT BY WEIGHT OF AT LEAST ONE OTHER COPOLYMERIZABLE COMPOUND SELECTED FROM THE GROUP CONSISTING OF AN ESTER OF ACRYLIC ACID AND AN ALKANOL WITH 1 TO 18 CARBON ATOMS, AN ESTER OF METHACRYLIC ACID AND AN ALKANOL WITH 1 TO 18 CARBON ATOMS, AN N-SUBSTITUTED ACRYLAMIDE, A VINYLHALIDE, A VINYLIDENE HALIDE, A VINLESTER, A VINYL ARYL COMPOUND AND ACRYLONITRILE.
Claim 2
Dependent Claim
153 words
A LINEAR COPOLYMER OF ADDITIVELY COMBINED UNITS OF (A) 0.25 TO 10 PERCENT BY WEIGHT OF AN ALKALINE EARTH METAL SALT OF AN A:B-MONOETHYLENICALLY UNSATURATED MONOCARBOXYLIC ACID CONTAINING 3 TO 4 CARBON ATOMS, (B) 0.25 TO 30 PERCENT BY WEIGHT OF AN AMIDE SELECTED FROM THE GROUP CONSISTING OF AN N-METHYLOLAMIDE AND AN N-METHLOLAMIDE ETHER DERIVED FROM AN ALIPHATIC ALCOHOL HAVING AT MOST 4 CARBON ATOMS, THE ACID OF SAID AMIDE BEING AN AT MOST DICARBOXYLIC ACID WHICH IS A-B-ETHYLENICALLY UNSATURATED AND CONTAINS 3 TO 5 CARBON ATOMS, AND (C) 99.5 TO 60 PERCENT BY WEIGHT OF AT LEAST ONE OTHER COPOLYMERIZABLE COMPOUND SELECTED FROM THE GROUP CONSISTING OF AN ESTER OF ACRYLIC ACID AND AN ALKANOL WITH 1 TO 18 CARBON ATOMS, AN ESTER OF METHACRYLIC ACID AND AN ALKANOL WITH 1 TO 18 CARBON ATOMS, AN N-SUBSTITUTED ACRYLAMIDE, A VINYLHALIDE, A VINYLIDENE HALIDE, A VINLESTER, A VINYL ARYL COMPOUND AND ACRYLONITRILE.
References Cited (Backward Citations)
US2865177A
Cited
US2984588A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |