Patent US3301801A successfully refreshed from Google Patents.
US3301801A
Expired / Lapsed
US
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Admixed composition of (1) copolymer of acrylic acids and esters thereof; (2) epoxy compounds; and (3) dicyandiamide
Assignee: De Soto Chemical Coatings Inc
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Filing: 1965-06-08
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Granted: 1967-01-31
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Expires: 1985-06-08
Abstract
No abstract record available.
Inventors
- 👤 Joseph E Gaske
- 👤 Wallace H Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:19
CPC Classifications
C; C09; C09D; C09D163/00; C09D133/00; C09D133/04; C09D133/06; C09D133/062; C09D133/064; C08; C08L; C08L63/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
130 words
A COATING COMPOSITION COMPRISING AN ORGANIC SOLVENT SOLUTION CONTAINING A SOLUTION COPOLYMER OF FROM 3 TO 20 PARTS OF ACID SELECTED FROM THE GROUP CONSISTING OF ACRYLIC ACID, METHACRYLIC ACID AND MIXTURES OF SAID ACIDS, AND CORRESPONDINGLY, FROM 97 TO 80 PARTS OF ALKYL ESTERS OF SAID ACIDS IN WHICH THE ALKYL RADICAL OF SAID ESTERS CONTAINS FROM 1 TO 8 CARBON ATOMS, EPOXY COMPOUND IN AN AMOUNT PROVIDING FROM 21.5 TO 151 1,2-EPOXY GROUPS PER 100 CARBOXYLIC ACID GROUPS OF SAID SOLUTION COPOLYMER, SAID EPOXY COMPOUND BEING A POLYGLYCIDYL ETHER OF DIPHENYLOL COMPOUND, AND DICYANDIAMIDE IN AN AMOUNT OF FROM 0.5 TO 0.9% BY WEIGHT, BASED ON THE TOTAL WEIGHT OF RESIN SOLIDS, TO PROMOTE REACTION BETWEEN SAID SOLUTION COPOLYMER AND SAID EPOXY COMPOUND WHEN SAID SOLUTION IS BACKED.
Claim 2
Dependent Claim
130 words
A COATING COMPOSITION COMPRISING AN ORGANIC SOLVENT SOLUTION CONTAINING A SOLUTION COPOLYMER OF FROM 3 TO 20 PARTS OF ACID SELECTED FROM THE GROUP CONSISTING OF ACRYLIC ACID, METHACRYLIC ACID AND MIXTURES OF SAID ACIDS, AND CORRESPONDINGLY, FROM 97 TO 80 PARTS OF ALKYL ESTERS OF SAID ACIDS IN WHICH THE ALKYL RADICAL OF SAID ESTERS CONTAINS FROM 1 TO 8 CARBON ATOMS, EPOXY COMPOUND IN AN AMOUNT PROVIDING FROM 21.5 TO 151 1,2-EPOXY GROUPS PER 100 CARBOXYLIC ACID GROUPS OF SAID SOLUTION COPOLYMER, SAID EPOXY COMPOUND BEING A POLYGLYCIDYL ETHER OF DIPHENYLOL COMPOUND, AND DICYANDIAMIDE IN AN AMOUNT OF FROM 0.5 TO 0.9% BY WEIGHT, BASED ON THE TOTAL WEIGHT OF RESIN SOLIDS, TO PROMOTE REACTION BETWEEN SAID SOLUTION COPOLYMER AND SAID EPOXY COMPOUND WHEN SAID SOLUTION IS BACKED.
Claim 3
Dependent Claim
16 words
A COATING COMPOSITION AS RECITED IN CLAIM 1 IN WHICH SAID SOLUTION INCLUDES CELLULOSE ACETATE BUTYRATE.
References Cited (Backward Citations)
US2879235A
Cited
US2872427A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |