Patent US3978015A successfully refreshed from Google Patents.
US3978015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three component electrodeposition system
Assignee: Valspar Corp
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Filing: 1971-04-05
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Granted: 1976-08-31
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Expires: 1991-04-05
Abstract
Abstract Emulsion electrocoat systems are provided in which a non-water dispersible resinous polyol is emulsified in the aqueous phase by means of an hydroxy functional emulsifying agent and an aminoplast resin is also present for cure. Superior corrosion resistance is obtained by having hydroxy functionality available in both the emulsified phase and in the emulsifying agent which disperses it.
Inventors
- 👤 Bernard L. Kolish
- 👤 Wesley K. Senseman
- 👤 Clayton H. Konker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:33
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/03; C08J3/05; C09; C09D; C09D5/00; C09D5/44; C09D5/448; Y; Y10; Y10S; Y10S524/00; Y10S524/901
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
120 words
An aqueous emulsion adapted for electrophoretic film deposition comprising 15 -50 % of non-water dispersible resinous polyol which is thermoplastic per se and has an hydroxy value of at least 20 emulsified in the continuous aqueous phase of 15-50% of said emulsion by means of a resinous hydroxy functional polycarboxylic acid emulsifying agent, the resin of said emulsifying agent having an hydroxy value of at least 20 and an acid number of at least 30, said emulsifying agent being reacted with base to form salts which are dissociated in said aqueous phase, said emulsion further including 5-50% of aminoplast resin for curing said emulsifying agent and said polyol, said percentages all being based on the total weight of non-volatile vehicle.
Claim 2
Dependent Claim
120 words
An aqueous emulsion adapted for electrophoretic film deposition comprising 15 -50 % of non-water dispersible resinous polyol which is thermoplastic per se and has an hydroxy value of at least 20 emulsified in the continuous aqueous phase of 15-50% of said emulsion by means of a resinous hydroxy functional polycarboxylic acid emulsifying agent, the resin of said emulsifying agent having an hydroxy value of at least 20 and an acid number of at least 30, said emulsifying agent being reacted with base to form salts which are dissociated in said aqueous phase, said emulsion further including 5-50% of aminoplast resin for curing said emulsifying agent and said polyol, said percentages all being based on the total weight of non-volatile vehicle.
Claim 3
Dependent Claim
27 words
An aqueous emulsion as recited in claim 1 in which said emulsifying agent and said polyol are present in a weight ratio of from 2:1 to 1:2.
Claim 4
Dependent Claim
22 words
An aqueous emulsion as recited in claim 2 in which said aminoplast resin is present in an amount of from 10-35 percent.
Claim 5
Dependent Claim
28 words
An aqueous emulsion as recited in claim 3 in which said emulsifying agent and said polyol are each present in an amount of from 25 -45% by weight.
Claim 6
Dependent Claim
16 words
An aqueous emulsion as recited in claim 1 in which said aminoplast resin is water insoluble.
Claim 7
Dependent Claim
26 words
An aqueous emulsion as recited in claim 1 in which said polyol is a copolymer of allyl alcohol having an allyl alcohol content of from 3-50percent.
Claim 8
Dependent Claim
17 words
An aqueous emulsion as recited in claim 6 in which said allyl alcohol copolymer further comprises styrene.
Claim 9
Dependent Claim
28 words
An aqueous emulsion as recited in claim 1 in which said emulsifying agent is a copolymer containing at least about 3% by weight of a monoethylenic hydroxy compound.
Claim 10
Dependent Claim
23 words
An aqueous emulsion as recited in claim 1 in which water immiscible organic solvent is present in the emulsified particles of resinous polyol.
Claim 11
Dependent Claim
22 words
An aqueous emulsion as recited in claim 9 in which the aqueous phase of said emulsion further includes water miscible organic solvent.
Claim 12
Dependent Claim
47 words
An aqueous emulsion as recited in claim 1 in which said emulsifying agent and said polyol are present in a weight ratio of from 2:1 to 1:2, said aminoplast resin is water insoluble, and said emulsifying agent is a thermoplastic acrylic copolymer containing copolymerized monoethylenic hydroxy compound.
Claim 13
Dependent Claim
22 words
An aqueous emulsion as recited in claim 11 in which said monoethylenic hydroxy compound is a monoallyl ether of a polyhydric alcohol.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-31 | 1980-03-01 | 1980-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-31 | 1984-03-01 | 1984-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-31 | 1988-03-01 | 1988-08-31 | $7700.00 | Window Closed / Lapsed |