US3846356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trialkylsilyl-treated fumed silicon dioxide pigments for electro-deposition
Assignee: Celanese Corp
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Filing: 1973-06-08
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Granted: 1974-11-05
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Expires: 1993-06-08
Abstract
Abstract This invention relates to novel pigments for electro-depositable compositions and in particular to the use of fumed silicon dioxides which have been surface-treated with polyalkylsilyl groups in their pigmentary form to produce electro-depositable coatings in conjunction with various electro-deposition binders, pigments, fillers, etc.
Inventors
- 👤 K Hou
- 👤 N Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:11
CPC Classifications
B; B82; B82Y; B82Y30/00; C; C09; C09D; C09D5/00; C09D5/44; C09D5/448; C09C; C09C3/00; C09C3/12; C01; C01P; C01P2004/00; C01P2004/60; C01P2004/64; C01P2006/00; C01P2006/10; C01P2006/12; C01P2006/90; Y; Y10; Y10S; Y10S524/00; Y10S524/901
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
63 words
AN AQUEOUS ELECTRO-DEPOSITABLE COMPOSITION COMPRISING AN IONICALLY SOLUBILIZED SYNTHETIC ORGANIC RESIN VEHICLE HAVING DISPERSED THEREIN IN PIGMENTARY FORM UP TO ABOUT 15 PERCENT BY WEIGHT, BASED UPON THE VEHICLE, OF A TRIALKYLSILYL-TREATED FUMED SILICON DIOXIDE PIGMENT HAVING A SURFACE AREA IN THE RANGE OF 50 TO 350 M2/G WHEREIN THE TOTAL PIGMENT TO BINDER RATIO IS NOT HIGHER THAN ABOUT 3 TO 1.
Claim 2
Dependent Claim
63 words
AN AQUEOUS ELECTRO-DEPOSITABLE COMPOSITION COMPRISING AN IONICALLY SOLUBILIZED SYNTHETIC ORGANIC RESIN VEHICLE HAVING DISPERSED THEREIN IN PIGMENTARY FORM UP TO ABOUT 15 PERCENT BY WEIGHT, BASED UPON THE VEHICLE, OF A TRIALKYLSILYL-TREATED FUMED SILICON DIOXIDE PIGMENT HAVING A SURFACE AREA IN THE RANGE OF 50 TO 350 M2/G WHEREIN THE TOTAL PIGMENT TO BINDER RATIO IS NOT HIGHER THAN ABOUT 3 TO 1.
Claim 3
Dependent Claim
18 words
The composition of claim 1 wherein the silicon pigment is present in the 2 to 10 percent range.
Claim 4
Dependent Claim
17 words
The composition of claim 1 wherein the vehicle comprises a base solubilized synthetic polycarboxylic acid vehicle resin.
Claim 5
Dependent Claim
17 words
The composition of claim 1 wherein the vehicle resin comprises a base solubilized epoxy ester-polycarboxylic acid-containing vehicle.
Claim 6
Dependent Claim
23 words
The composition of claim 1 wherein the alkyl group in the trialkylsilyl-treated fumed silicon dioxide pigments contain up to about six carbon atoms.
Claim 7
Dependent Claim
11 words
The composition of claim 5 wherein the alkyl group is methyl.
References Cited (Backward Citations)
US2751369A
Cited
US3697467A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-04 | 1978-05-06 | 1978-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-04 | 1982-05-06 | 1982-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-04 | 1986-05-06 | 1986-11-05 | $7700.00 | Window Closed / Lapsed |