Patent US4970264A successfully refreshed from Google Patents.
US4970264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment and after-treatment of metal with amine oxide-containing polyphenol compounds
Assignee: Henkel Corp
•
Filing: 1987-12-04
•
Granted: 1990-11-13
•
Expires: 2007-12-04
Abstract
Abstract A metal treatment solution comprising an effective amount of a soluble or dispersible compound which is a derivative of a polyphenol. The present invention comprises novel derivatives of polyphenol compounds useful in the treatment of the surface of metal articles. The present invention also encompasses novel surface treatment solutions or dispersions, and methods of using these solutions or dispersions. The compositions of the present invention include amine oxide containing polyphenol compounds and derivatives thereof. The molecular weight of the polyphenols used in derivatives of the present invention have molecular weights of from about 360 to about 30,000 or greater. The resulting derivatives of the present invention typically have a molecular weight of up to about 2,000,000 with molecular weights within the range of about 700 to about 70,000 being preferred.
Inventors
- 👤 Andreas Lindert
- 👤 John R. Pierce
- 👤 David R. McCormick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:26
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/44
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
42 words
A composition comprising a surface treatment carrier having a homopolymer or copolymer compound dissolved or dispersed therein, wherein said homopolymer or copolymer comprises a material having at least about one-sixth of the units having the formula: ##STR3## where Y 4 is: ##STR4##
Claim 2
Dependent Claim
42 words
A composition comprising a surface treatment carrier having a homopolymer or copolymer compound dissolved or dispersed therein, wherein said homopolymer or copolymer comprises a material having at least about one-sixth of the units having the formula: ##STR3## where Y 4 is: ##STR4##
Claim 3
Dependent Claim
11 words
A composition according to claim 1 wherein the carrier comprises water.
Claim 4
Dependent Claim
20 words
A composition according to claim 1 wherein the carrier is aqueous and the polymer has been neutralized with an acid.
Claim 5
Dependent Claim
12 words
A composition according to claim 3 wherein the acid is carbonic acid.
Claim 6
Dependent Claim
16 words
A composition according to claim 3 having a pH of from about 0.5 to about 14.
Claim 7
Dependent Claim
16 words
A composition according to claim 5 having a pH of from about 2.0 to about 12.
Claim 8
Dependent Claim
24 words
A composition according to claim 1 wherein said homo- or co-polymer compound comprises about 0.001 to about 80% by weight of the final composition.
Claim 9
Dependent Claim
22 words
A composition according to claim 7 wherein said homo- or co-polymer compound comprises from about 0.001% to about 10% of said composition.
Claim 10
Dependent Claim
22 words
A composition according to claim 8 wherein said homo- or co-polymer compound comprises from about 0.001 to about 5% of said composition.
Claim 11
Dependent Claim
22 words
A composition according to claim 9 wherein said homo- or co-polymer compound comprises from about 0.025% to about 1% of said composition.
Claim 12
Dependent Claim
22 words
A composition according to claim 7 wherein said homo- or co-polymer compound comprises from about 1% to about 80% of said composition.
Claim 13
Dependent Claim
13 words
A composition according to claim 5 which additionally comprises a complex fluoride material.
Claim 14
Dependent Claim
25 words
A composition according to claim 1 which additionally comprises a dissolved or dispersed compound that includes compounds of titanium, zirconium, hafnium, silicon, or mixtures thereof.
Claim 15
Dependent Claim
21 words
A composition according to claim 1 which additionally comprises an oxide of silicon, titanium, tin, aluminum, cobalt, nickel, or mixtures thereof.
Claim 16
Dependent Claim
32 words
A composition according to claim 1 which additionally comprises a paint system additive selected from the group consisting of a film forming resin, a pigment, a binder, particulate zinc, or mixtures thereof.
References Cited (Backward Citations)
GB902628A
Cited
GB972897A
Cited
DE2713476A1
Cited
US4376000A
Cited
US4544727A
Cited
US4424272A
Cited
US4433015A
Cited
US4517028A
Cited
US4457790A
Cited
JPS61138610A
Cited
JPH0810047A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-11-12 | 1994-05-14 | 1994-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-11-12 | 1998-05-14 | 1998-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-11-12 | 2002-05-14 | 2002-11-13 | $7700.00 | Window Closed / Lapsed |