US3904569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal coating compositions prepared from aqueous dispersions of carboxylic acid resin and an aliphatic polyamine
Assignee: Continental Can Co Inc
•
Filing: 1973-09-10
•
Granted: 1975-09-09
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Expires: 1993-09-10
Abstract
Abstract Metal surfaces are coated with an aqueous dispersion containing a water dispersible carboxylic acid containing resin and aliphatic polyamine.
Inventors
- 👤 Ihab M Hekal
- 👤 Raymond G Chelton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:39
CPC Classifications
C; C09; C09D; C09D123/00; C09D123/02; C09D123/025; C08; C08K; C08K5/00; C08K5/16; C08K5/17
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
149 words
A COATING COMPOSITION SUITABLE FOR COATING METAL SURFACES COMPRISING AN AQUEOUS DISPERSION HAVING DISPERSED THEREIN A MIXTURE OF ABOUT 75 TO 90% BY WEIGHT OF (1) A CARBOXYLIC ACID CONTAINING OLEFIN COPOLYMER HAVING REACTIVE CARBOXYL GROUPS PREPARED FROM ABOUT 60 TO ABOUT 90 PERCENT BY WEIGHT OF AN A-OLEFIN HAVING THE GENERAL FORMULA RCH=CH2 WHEREIN R IS SELECTED FROM THE GROUP HAVING 1 TO 8 CARBON ATOMS AND ABOUT 10 TO ABOUT 40 PERCENT BY WEIGHT OF AN A,B-ETHYLENICALLY UNSATURATED CARBOXYLIC ACID HAVING 3 TO 8 CARBON ATOMS, AND ABOUT 10 TO 25 PERCENT BY WEIGHT OF (2) AN ALIPHATIC POLYAMINE SELECTED FROM THE GROUP CONSISTING OF HEXAMETHYLENE TETRAMINE AND AMINES OF THE GENERAL FORMULA NH2(C2H4NH)XC2H4NH2, X BEING AN INTEGER FROM 0 TO 20, THE AMOUNT OF ALIPHATIC POLYAMINE IN THE MIXTURE BEING SUFFICIENT TO COMPLETELY REACT WITH THE REACTIVE CARBOXYL GROUPS OF THE CARBOXYLIC ACID CONTAINING OLEFIN COPOLYMER.
Claim 2
Dependent Claim
149 words
A COATING COMPOSITION SUITABLE FOR COATING METAL SURFACES COMPRISING AN AQUEOUS DISPERSION HAVING DISPERSED THEREIN A MIXTURE OF ABOUT 75 TO 90% BY WEIGHT OF (1) A CARBOXYLIC ACID CONTAINING OLEFIN COPOLYMER HAVING REACTIVE CARBOXYL GROUPS PREPARED FROM ABOUT 60 TO ABOUT 90 PERCENT BY WEIGHT OF AN A-OLEFIN HAVING THE GENERAL FORMULA RCH=CH2 WHEREIN R IS SELECTED FROM THE GROUP HAVING 1 TO 8 CARBON ATOMS AND ABOUT 10 TO ABOUT 40 PERCENT BY WEIGHT OF AN A,B-ETHYLENICALLY UNSATURATED CARBOXYLIC ACID HAVING 3 TO 8 CARBON ATOMS, AND ABOUT 10 TO 25 PERCENT BY WEIGHT OF (2) AN ALIPHATIC POLYAMINE SELECTED FROM THE GROUP CONSISTING OF HEXAMETHYLENE TETRAMINE AND AMINES OF THE GENERAL FORMULA NH2(C2H4NH)XC2H4NH2, X BEING AN INTEGER FROM 0 TO 20, THE AMOUNT OF ALIPHATIC POLYAMINE IN THE MIXTURE BEING SUFFICIENT TO COMPLETELY REACT WITH THE REACTIVE CARBOXYL GROUPS OF THE CARBOXYLIC ACID CONTAINING OLEFIN COPOLYMER.
Claim 3
Dependent Claim
12 words
The coating composition of claim 1 wherein the Alpha -olefin is ethylene.
Claim 4
Dependent Claim
23 words
The coating composition of claim 1 wherein the ethylenically unsaturated carboxylic acid is selected from the group consisting of acrylic and methacrylic acid.
Claim 5
Dependent Claim
23 words
The coating composition of claim 1 wherein about 5 to about 75 percent of the carboxylic acid groups are neutralized by metal ions.
Claim 6
Dependent Claim
33 words
The coating composition of claim 4 wherein the carboxylic acid groups of the olefin copolymer are neutralized with metal ions selected from the group consisting of alkali metal, alkaline earth and zinc ions.
Claim 7
Dependent Claim
16 words
The coating composition of claim 4 wherein the carboxylic acid groups are neutralized with sodium ions.
Claim 8
Dependent Claim
13 words
The coating composition of claim 1 wherein the aliphatic polyamine is ethylene diamine.
Claim 9
Dependent Claim
13 words
The coating composition of claim 1 wherein the aliphatic polyamine is diethylene triamine.
Claim 10
Dependent Claim
13 words
The coating composition of claim 1 wherein the aliphatic polyamine is triethylene tetramine.
Claim 11
Dependent Claim
13 words
The coating composition of claim 1 wherein the aliphatic polyamine is tetraethylene pentamine.
Claim 12
Dependent Claim
21 words
The coating composition of claim 1 wherein the mixture comprises 1 to about 45 percent by weight of the aqueous dispersion.
References Cited (Backward Citations)
US3366563A
Cited
US3575909A
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US3794607A
Cited
US3644258A
Cited
US3677989A
Cited
US3668100A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-08 | 1979-03-10 | 1979-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-08 | 1983-03-10 | 1983-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-08 | 1987-03-10 | 1987-09-09 | $7700.00 | Window Closed / Lapsed |