US3719629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water thinnable coating compositions from aminoethylated interpolymers
Assignee: Dow Chemical Co
•
Filing: 1971-03-31
•
Granted: 1973-03-06
•
Expires: 1991-03-31
Abstract
Abstract Water thinnable coating compositions are prepared by incorporating therein as the pigment binder an acidified aminoethylated copolymer having pendant amino-alkylate groups of the formula WHEREIN R1 and R2 are independently selected from the group consisting of hydrogen and lower alkyl radicals of one to four carbon atoms and the average value of n ranges from about 1.0 to 2.5 and wherein the copolymer before aminoethylation contains at least 3 percent by weight pendant -COOH groups. Water dispersant epoxy resin coating compositions are also disclosed.
Inventors
- 👤 P Martin
- 👤 R Mcfadden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:49
CPC Classifications
H; H02; H02K; H02K44/00; H02K44/02; H02K44/06; C; C08; C08F; C08F8/00; C08F8/30; C08K; C08K5/00; C08K5/04; C08K5/05; C08K5/06; C08L; C08L33/00; C08L33/04; C08L33/06; C09; C09D; C09D125/00; C09D125/02; C09D125/04; C09D125/08; C09D125/14; C09D133/00; C09D133/04; C09D133/06; C09D133/062; C09D157/00; C09D157/04; C09D163/00; C08L63/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
105 words
A water thinnable coating composition comprising (1) a water miscible solvent, (2) an acidified aminoethylated vinyl polymer dissolved in said solvent, said interpolymer having pendant aminoethyl groups of the formula wherein R1 and R2 are independently selected from the group consisting of hydrogen and lower alkyl radicals of one to four carbon atoms and the average value of n ranges from about 1.0 to about 2.5 and wherein the interpolymer before aminoethylation contains at least 3 percent by weight pendant -COOH groups and further wherein said aminoethyl groups are reacted with sufficient acid to impart water solubility to said interpolymer and (3) an epoxy resin.
Claim 2
Dependent Claim
105 words
A water thinnable coating composition comprising (1) a water miscible solvent, (2) an acidified aminoethylated vinyl polymer dissolved in said solvent, said interpolymer having pendant aminoethyl groups of the formula wherein R1 and R2 are independently selected from the group consisting of hydrogen and lower alkyl radicals of one to four carbon atoms and the average value of n ranges from about 1.0 to about 2.5 and wherein the interpolymer before aminoethylation contains at least 3 percent by weight pendant -COOH groups and further wherein said aminoethyl groups are reacted with sufficient acid to impart water solubility to said interpolymer and (3) an epoxy resin.
Claim 3
Dependent Claim
18 words
The composition of claim 1 wherein the average value of n is from about 1.5 to about 2.5.
Claim 4
Dependent Claim
23 words
The composition of claim 1 wherein the interpolymer before aminoethylation contains from about 5 to about 15 percent by weight pendant -COOH groups.
Claim 5
Dependent Claim
34 words
The composition of claim 1 wherein the water miscible solvent is selected from the group consisting of aliphatic alcohols having from about one to about six carbon atoms, glycols, glycol monoethers and mixtures thereof.
Claim 6
Dependent Claim
17 words
The composition of claim 1 wherein said epoxy resin is a glycidyl ether of a polyhydric compound.
Claim 7
Dependent Claim
12 words
The composition of claim 5 wherein the polyhydric compound is a bisphenol.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-05 | 1976-09-04 | 1977-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-05 | 1980-09-04 | 1981-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-05 | 1984-09-04 | 1985-03-06 | $7700.00 | Window Closed / Lapsed |