US3340172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two phase aqueous emulsion suitable for electrophoretic coating and process for use thereof
Assignee: Valspar Corp
•
Filing: 1966-06-28
•
Granted: 1967-09-05
•
Expires: 1986-06-28
Abstract
No abstract record available.
Inventors
- 👤 Olin W Huggard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:00
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
AN AQUEOUS EMULSION ADAPTED FOR ELETROPHORETIC FILM DEPOSITION COMPRISING A CONTINUOUS AQUEOUS PHASE HAVING DISSOLVED THEREIN AN EMULSIFYING AGENT CONSISTING ESSENTIALLY OF A SALT OF A VOLATILE NITROGENOUS BASE WITH A RESINOUS FILM FORMING POLYCARBOXYLIC ACID SUBSTANTIALLY FREE OF ANHYDRIDE GROUPS AND AN OIL SOLUBLE PHASE STABLY DISPERSED IN SAID AQUEOUS PHASE, SAID OIL SOLUBLE PHASE COMPRISING OIL SOLUBLE RESIN CONTAINING FUNCTIONAL GROUPS SELECTED FROM THE GROUP CONSISTING OF HYDROXY GROUPS AND CARBOXY GROUPS, SAID OIL SOLUBLE RESIN BEING COMPATIBLE WITH SAID EMULSIFYING AGENT IN THE DEPOSITED FILM, AND FROM 5-20% OF SAID OIL SOLUBLE RESIN OF A HEAT-HARDENING FORMALEHYDE CONDENSATE HOT BLENDED WITH SAID OIL SOLUBLE RESIN, SAID FORMALDEHYDE CONDENSATE BEING A CURING AGENT FOR SAID POLYCARBOXYLIC RESIN AND SAID OIL SOLUBLE RESIN.
Claim 2
Dependent Claim
75 words
A METHOD OF COATING A BODY CAPABLE OF CARRYING AN ELECTRICAL CURRENT WITH A UNIFORM WEATHER RESISTANT COATING COMPRISING IMMERSING SAID BODY IN THE AQUEOUS EMULSION RECITED IN CLAIM 7, PASSING A UNIDIRECTIONAL CURRENT THROUGH SAID AQUEOUS EMULSION AND THROUGH SAID BODY AS ANODE TO DEPOSIT A UNIFORM WATER-INSOLUBLE FILM THEREUPON, AND BAKING SAID FILM TO CURE THE SAME WHEREBY SAID FORMALDEHYDE CONDENSATE CAN REACT WITH SAID POLYCARBOXYLIC RESIN AND PROVIDE A WEATHER RESISTANT COATING.
References Cited (Backward Citations)
US3023177A
Cited
US3251790A
Cited
US3069368A
Cited
US3200057A
Cited
US3293201A
Cited
US3297557A
Cited
US3230162A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |