US2866763A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of preparing aqueous dispersion of an acrylonitrile interpolymer and a thermosetting resin and product obtained
Assignee: EIDP Inc
•
Filing: 1956-04-16
•
Granted: 1958-12-30
•
Expires: 1976-04-16
Abstract
No abstract record available.
Inventors
- 👤 Philip F Sanders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:05
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/447; C; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/12; C08F220/42; C08F220/44; C08F8/00; C08F8/44; C08L; C08L33/00; C08L33/18; C08L33/20; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C09D133/062; C09D133/064; C09D133/18; C09D133/20; C08L61/00; C08L61/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
A PROCESS FOR PREPARING A PACKAGE-STABLE AND GELATION-RESISTANT AQUEOUS DISPERSION INTERPOLYMER COMPOSITION WHICH PROCESS COMPRISES PREFORMING, BY EMULSION POLYMERIZATION IN WATER, AN ACIDIC INTERPOLYMER OF A MIXTURE OF MONOMERS CONSISTING OF (A) 30% TO 80% BY WEIGHT OF ACRYLONITRILE, (B) 1.5% TO 15% BY WEIGHT OF AT LEAST ONE ALPHA OLEFINIC MONOCARBOXYLIC ACID SELECTED FROM THE GROUP CONSISTING OF ACRYCLIC ACID, METHACRYLIC ACID, ETHACRYLIC ACID, PHENYL ACRYCLIC ACID AND CROTONIC ACID, AND (C) 15% TO 65% BY WEIGHT OF AT LEAST ONE ESTER OF AN ACID OF (B) WITH A SATURATED ALIPHATIC MONOHYDRIC ALCOHOL HAVING FROM 1 TO 12 CARBON ATOMS, FORMING AN AMMONIUM SALT OF SAID INTERPOLYMER BY REACTING THE ACIDIC (B) COMPONENT OF THE INTERPOLYMER WITH AMMONIUM HYDROXIDE AT A TEMPERATURE IN THE RANGE OF ABOUT 45*C. TO ABOUT 95*C., AND COOLING THE AMMONIACAL DISPERSION TO A TEMPERATURE BELOW ABOUT 30*C., THE AMOUNT OF AMMONIUM HYDROXIDE INTRODUCED BEING SUFFICIENT TO PROVIDE THE AQUEOUS DISPERSION WITH A PH VALUE IN THE RANGE OF 5.5 TO 8.0.
Claim 2
Dependent Claim
167 words
A PROCESS FOR PREPARING A PACKAGE-STABLE AND GELATION-RESISTANT AQUEOUS DISPERSION INTERPOLYMER COMPOSITION WHICH PROCESS COMPRISES PREFORMING, BY EMULSION POLYMERIZATION IN WATER, AN ACIDIC INTERPOLYMER OF A MIXTURE OF MONOMERS CONSISTING OF (A) 30% TO 80% BY WEIGHT OF ACRYLONITRILE, (B) 1.5% TO 15% BY WEIGHT OF AT LEAST ONE ALPHA OLEFINIC MONOCARBOXYLIC ACID SELECTED FROM THE GROUP CONSISTING OF ACRYCLIC ACID, METHACRYLIC ACID, ETHACRYLIC ACID, PHENYL ACRYCLIC ACID AND CROTONIC ACID, AND (C) 15% TO 65% BY WEIGHT OF AT LEAST ONE ESTER OF AN ACID OF (B) WITH A SATURATED ALIPHATIC MONOHYDRIC ALCOHOL HAVING FROM 1 TO 12 CARBON ATOMS, FORMING AN AMMONIUM SALT OF SAID INTERPOLYMER BY REACTING THE ACIDIC (B) COMPONENT OF THE INTERPOLYMER WITH AMMONIUM HYDROXIDE AT A TEMPERATURE IN THE RANGE OF ABOUT 45*C. TO ABOUT 95*C., AND COOLING THE AMMONIACAL DISPERSION TO A TEMPERATURE BELOW ABOUT 30*C., THE AMOUNT OF AMMONIUM HYDROXIDE INTRODUCED BEING SUFFICIENT TO PROVIDE THE AQUEOUS DISPERSION WITH A PH VALUE IN THE RANGE OF 5.5 TO 8.0.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-29 | 1962-06-30 | 1962-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-29 | 1966-06-30 | 1966-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-29 | 1970-06-30 | 1970-12-30 | $7700.00 | Window Closed / Lapsed |