US3862894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
A method of electrodepositing non-aqueous cationic dispersions and articles produced thereby
Assignee: PPG Industries Inc
•
Filing: 1972-01-14
•
Granted: 1975-01-28
•
Expires: 1992-01-14
Abstract
Abstract This invention relates to electrodepositable compositions and the method of electrodepositing these compositions. The electrodepositable compositions of the invention comprise non-aqueous electrodepositable coating compositions comprising a non-aqueous dispersion of a polymer containing basic nitrogen atoms in an organic dispersing liquid in the presence of a dispersion stablizer and optionally a coupling solvent.
Inventors
- 👤 Kathleen A Mcguire
- 👤 Charles M Hansen
- 👤 Roger M Christenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:19
CPC Classifications
C; C25; C25D; C25D13/00; C25D13/04; C25D13/06; C09; C09D; C09D5/00; C09D5/44; C09D5/4407; C09D5/4411; Y; Y10; Y10S; Y10S524/00; Y10S524/901; Y10S524/923; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
23 words
A method as in claim 1 wherein the dispersion has a solids content of from about 10 to about 65 percent by weight.
Claim 2
Dependent Claim
31 words
A method as in claim 1 wherein the polymer is an imine-modified interpolymer of: a. a polymerizable ethylenically unsaturated carboxylic acid; and b. at least one other polymerizable ethylenically unsaturated monomer.
Claim 3
Dependent Claim
15 words
A method as in claim 3 wherein the monomer comprises methyl methacrylate or butyl methacrylate.
Claim 4
Dependent Claim
15 words
A method as in claim 3 wherein the acid comprises acrylic acid or methacrylic acid.
Claim 5
Dependent Claim
14 words
A method as in claim 3 wherein the imine is 2-hydroxyethyl ethylenimine or ethylenimine.
Claim 6
Dependent Claim
23 words
A method as in claim 1 wherein the polymer contains at least a portion thereof derived from an ethylenically unsaturated basic nitrogen-containing monomer.
Claim 7
Dependent Claim
12 words
A method as in claim 7 wherein the monomer is N,N-dimethylamine methacrylate.
Claim 8
Dependent Claim
49 words
A method as in claim 1 wherein the dispersion stabilizer is formed by graft copolymerizing (A) the reaction product of glycidyl methacrylate and poly-12-hydroxy stearic acid and (B) the reaction product of methyl methacrylate, glycidyl methacrylate, and the copolymer product containing pendant epoxy groups is reacted with methacrylic acid.
Claim 9
Dependent Claim
17 words
A method as in claim 1 wherein the dispersion has as an additional component a coupling solvent.
Claim 10
Dependent Claim
24 words
A method as in claim 10 wherein the coupling solvent has a limited affinity for the interpolymer and a limited solubility in the water.
Claim 11
Dependent Claim
26 words
A method as in claim 11 wherein the coupling solvent is selected from a member of the grouP consisting of ketones, ethers, esters, alcohols and nitrocarbons.
Claim 12
Dependent Claim
24 words
A method as in claim 12 wherein the coupling solvent is ethylene glycol monoethyl ether acetate, ethylene glycol monobutyl ether acetate or isopropyl alcohol.
Claim 13
Dependent Claim
30 words
A method as in claim 1 wherein the organic dispersing liquid is selected from a member of the class consisting of aliphatic hydrocarbons, aromatic hydrocarbons naphthenic hydrocarbons or mixture thereof.
Claim 14
Dependent Claim
138 words
AN ARTICLE OF MANUFACTURE COMPRISING A SUBSTRATE HAVING THEREON AN ELECTRODEPOSITED COATING APPLIED BY PASSING AN ELECTRIC CURRENT BETWEEN AN ELECTRICALLY CONDUCTIVE ELECTRODE AND AN ELECTRICALLY CONDUCTIVE COUNTER ELECTRODE IN ELECTRIC CONTACT WITH A NON-AQUEOUS COATING COMPOSITION COMPRISING A DISPERSION OF A POLYMER A. WHICH CONTAINS BASIC NITROGEN ATOMS; AND B. WHICH CONTAINS A DISPERSION STABILIZER IN AN ORGANIC DISPERSION LIQUID, SAID DISPERSION STABILIZER BEING A BRANCHED COPOLYMER CONTAINING TWO POLYMERIC SEGMENTS WHEREIN ONE SEGMENTS IS SOLVATED BY THE ORGANIC DISPERSION LIQUID AND WHEREIN THE SECOND SEGMENT IS C. AN ANCHOR POLYMER OF DIFFERENT POLARITY TO THE FIRST SEGMENT; D. RELATIVELY NON-SOLVATABLE BY THE ORGANIC DISPERSION LIQUID; AND E. ANCHORED TO SAID POLYMER BY THE COPOLYMERIZATION OF PENDANT GROUPS WHICH ARE A PART OF SAID ANCHOR POLYMER WITH ETHYLENICALLY UNSATURATED MONOMERS WHICH ARE EMPLOYED IN FORMING SAID POLYMER.
Claim 15
Dependent Claim
23 words
An article as in claim 15 wherein the dispersion has a solids content of from about 10 to about 65 percent by weight.
Claim 16
Dependent Claim
23 words
An article as in claim 15 wherein the polymer contains at least a portion thereof derived from an ethylenically unsaturated basic nitrogen-containing monomer.
Claim 17
Dependent Claim
49 words
An article as in claim 15 wherein the dispersion stabilizer is formed by graft copolymerizing (A) the reaction product of glycidyl methacrylate and poly-12-hydroxy stearic acid and (B) the reaction product of methyl methacrylate, glycidyl methacrylate, and the copolymer product containing pendant epoxy groups is reacted with methacrylic acid.
Claim 18
Dependent Claim
32 words
An article as in claim 15 wherein the dispersion has as an additional component a coupling solvent which has a limited affinity for the interpolymer and a limited solubility in the water.
Claim 19
Dependent Claim
31 words
An article as in claim 15 wherein the polymer is an imine-modified interpolymer of: a. a polymerizable ethylenically unsaturated carboxylic acid; and b. at least one other polymerizable ethylenically unsaturated monomer.
Claim 20
Dependent Claim
16 words
An article as in claim 20 wherein the monomer (b) comprises methyl methacrylate or butyl methacrylate.
Claim 21
Dependent Claim
15 words
An article as in claim 20 wherein the acid comprises acrylic acid or methacrylic acid.
Claim 22
Dependent Claim
14 words
An article as in claim 20 wherein the imine is 2-hydroxyethyl ethylenimine or ethylenimine.
Claim 23
Dependent Claim
12 words
An article as in claim 23 wherein the monomer is N,N-dimethylamine methacrylate.
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) | 1978-01-27 | 1978-07-29 | 1979-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-27 | 1982-07-29 | 1983-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-27 | 1986-07-29 | 1987-01-28 | $7700.00 | Window Closed / Lapsed |