Patent US4851149A successfully refreshed from Google Patents.
US4851149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-toxic acid cleaner corrosion inhibitors
Assignee: Henkel Corp
•
Filing: 1987-09-21
•
Granted: 1989-07-25
•
Expires: 2007-09-21
Abstract
Abstract Acid cleaning/pickling compositions for metal surfaces containing (A) at least one protein-derived polymer, sugar-derived polymer, sorbitol, tannin, or vinyl-based polymer, (B) at least one iodine or iodine-affording compound; acids solutions prepared therefrom; and methods for their use.
Inventors
- 👤 Carmen M. Carandang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:59
CPC Classifications
C; C10; C10M; C10M129/00; C10M129/02; C10M129/26; C10M129/28; C10M129/38; C10M129/40; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/12; C23F11/124; C23F11/126; C23F11/14; C23F11/141; C23F11/143; C10M2201/00; C10M2201/02; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/125; C10M2207/126; C10M2207/128; C10M2207/129; C10M2207/22; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/08; C10N2040/20
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
107 words
A corrosion inhibitor dry concentrate, for use in an acid cleaning composition, which does not produce toxic residues and which consists essentially of: (A) about 1 to about 80% by weight of a gelatin hydrolysate; (B) about 0.1 to about 15% by weight of at least one iodine or iodine-ion affording composition; (C) up to about 80% by weight of an inert solid diluent; (D) up to 10% by weight of a solid dedusting agent; and (E) from about 1 to about 10% by weight of a polymer containing vinyl pyrrolidone monomeric units and having a viscosity average molecular weight of from about 5,000 to about 50,000.
Claim 2
Dependent Claim
107 words
A corrosion inhibitor dry concentrate, for use in an acid cleaning composition, which does not produce toxic residues and which consists essentially of: (A) about 1 to about 80% by weight of a gelatin hydrolysate; (B) about 0.1 to about 15% by weight of at least one iodine or iodine-ion affording composition; (C) up to about 80% by weight of an inert solid diluent; (D) up to 10% by weight of a solid dedusting agent; and (E) from about 1 to about 10% by weight of a polymer containing vinyl pyrrolidone monomeric units and having a viscosity average molecular weight of from about 5,000 to about 50,000.
Claim 3
Dependent Claim
69 words
A concentrate according to claim 1, wherein the amount of gelatin hydrolysate is between about 20 and about 45% by weight, the amount of iodine or iodine ion affording composition is between about 2 and about 6% by weight, the amount of inert solid diluent is between about 50 and about 80% by weight, and the amount of dedusting agent is between about 0.5 and about 3% by weight.
Claim 4
Dependent Claim
14 words
A concentrate according to claim 2, wherein the inert solid diluent is sodium sulfate.
Claim 5
Dependent Claim
72 words
A dry corrosion inhibitor concentrate, for use in an acid cleaning composition, which does not produce toxic residues and which consists essentially of: (A) about 1 to about 80% by weight of a gelatin hydrolysate; (B) about 0.1 to about 15% by weight of ethylene diamine dihydroiodide; (C) about 5 to about 80% by weight of an inert solid diluent; and (D) up to 10% by weight of a solid dedusting agent.
Claim 6
Dependent Claim
72 words
A dry corrosion inhibitor concentrate, for use in an acid cleaning composition, which does not produce toxic residues and which consists essentially of: (A) about 1 to about 80% by weight of a gelatin hydrolysate; (B) about 0.1 to about 15% by weight of ethylene diamine dihydroiodide; (C) about 5 to about 80% by weight of an inert solid diluent; and (D) up to 10% by weight of a solid dedusting agent.
Claim 7
Dependent Claim
66 words
A concentrate according to claim 4, wherein the amount of gelatin hydrolysate is between about 20 and about 45% by weight, the amount of ethylene diamine dihydroiodide is between about 2 and about 6% by weight, the amount of inert solid diluent is between about 50 and about 80% by weight, and the amount of dedusting agent is between about 0.5 and about 3% by weight.
Claim 8
Dependent Claim
14 words
A concentrate according to claim 5, wherein the inert solid diluent is sodium sulfate.
Claim 9
Dependent Claim
115 words
An aqueous corrosion inhibitor solution concentrate, consisting essentially of: (A) about 1 to about 50% by weight of a gelatin hydrolysate; (B) about 0.1 to about 15% by weight of at least one iodine or iodide ion affording composition; (C) about 1 to about 20% by weight of at least one surfactant selected from the group consisting of anionic, nonionic, and amphoteric surfactants; (D) from about 1 to about 10% by weight of a polymer containing vinyl pyrrolidone monomeric units and having a viscosity average molecular weight of from about 5,000 to about 50,000; (E) from about 0.5 to about 5% by weight of an acidifier; and (F) water as needed to bring to 100%.
Claim 10
Dependent Claim
115 words
An aqueous corrosion inhibitor solution concentrate, consisting essentially of: (A) about 1 to about 50% by weight of a gelatin hydrolysate; (B) about 0.1 to about 15% by weight of at least one iodine or iodide ion affording composition; (C) about 1 to about 20% by weight of at least one surfactant selected from the group consisting of anionic, nonionic, and amphoteric surfactants; (D) from about 1 to about 10% by weight of a polymer containing vinyl pyrrolidone monomeric units and having a viscosity average molecular weight of from about 5,000 to about 50,000; (E) from about 0.5 to about 5% by weight of an acidifier; and (F) water as needed to bring to 100%.
Claim 11
Dependent Claim
65 words
A concentrate according to claim 7, wherein the amount of gelatin hydrolysate is between about 10 to about 15% by weight; the amount of iodine or iodine ion affording composition is between about 2 and about 8% by weight; the amount of surfactant is between about 12 to about 16% by weight; and the amount of acidifier is between about 1.5 and 2.5% by weight.
Claim 12
Dependent Claim
76 words
An aqueous corrosion inhibitor solution concentrate, consisting essentially of: (A) about 1 to about 50% by weight of a gelatin hydrolysate; (B) about 0.1 to about 15% by weight of ethylene diamine dihydroiodide; (C) about 1 to about 20% by weight of at least one surfactant selected from the group consisting of anionic, nonionic, and amphoteric surfactants; (D) from about 0.5 to about 5% by weight of an acidifier; and (E) water to bring to 100%.
Claim 13
Dependent Claim
76 words
An aqueous corrosion inhibitor solution concentrate, consisting essentially of: (A) about 1 to about 50% by weight of a gelatin hydrolysate; (B) about 0.1 to about 15% by weight of ethylene diamine dihydroiodide; (C) about 1 to about 20% by weight of at least one surfactant selected from the group consisting of anionic, nonionic, and amphoteric surfactants; (D) from about 0.5 to about 5% by weight of an acidifier; and (E) water to bring to 100%.
Claim 14
Dependent Claim
62 words
A concentrate according to claim 9, wherein the amount of gelatin hydrolysate is between about 10 to about 15% by weight; the amount of ethylene diamine dihydroiodide is between about 2 and about 8% by weight; the amount of surfactant is between about 12 to about 16% by weight; and the amount of acidifier is between about 1.5 and 2.5% by weight.
Claim 15
Dependent Claim
126 words
A corrosion inhibited acid cleaning composition consisting essentially of: (A) from about 1 to about 50% by weight of an acid; (B) a corrosion inhibiting effective amount of a concentrate consisting essentially of: (i) about 1 to about 80% by weight of a gelatin hydrolysate; (ii) about 0.1 to about 15% by weight of at least one iodine or iodine-ion affording composition; (iii) up to about 80% by weight of an inert solid diluent; (iv) up to 10% by weight of a solid dedusting agent; and (v) from about 1 to about 10% by weight of a polymer containing vinyl pyrrolidone monomeric units and having a viscosity average molecular weight of from about 5,000 to about 50,000; and: (C) water, if needed, to bring to 100%.
Claim 16
Dependent Claim
126 words
A corrosion inhibited acid cleaning composition consisting essentially of: (A) from about 1 to about 50% by weight of an acid; (B) a corrosion inhibiting effective amount of a concentrate consisting essentially of: (i) about 1 to about 80% by weight of a gelatin hydrolysate; (ii) about 0.1 to about 15% by weight of at least one iodine or iodine-ion affording composition; (iii) up to about 80% by weight of an inert solid diluent; (iv) up to 10% by weight of a solid dedusting agent; and (v) from about 1 to about 10% by weight of a polymer containing vinyl pyrrolidone monomeric units and having a viscosity average molecular weight of from about 5,000 to about 50,000; and: (C) water, if needed, to bring to 100%.
Claim 17
Dependent Claim
91 words
A corrosion inhibited acid cleaning composition consisting essentially of: (A) from about 1 to about 50% by weight of an acid; (B) a corrosion inhibiting effective amount of a concentrate consisting essentially of: (i) about 1 to about 80% by weight of a gelatin hydrolysate; (ii) about 0.1 to about 15% by weight of ethylene diamine dihydroiodide; (iii) about 5 to about 80% by weight of an inert solid diluent; and (iv) up to 10% by weight of a solid dedusting agent; and (C) water, if needed, to bring to 100%.
Claim 18
Dependent Claim
91 words
A corrosion inhibited acid cleaning composition consisting essentially of: (A) from about 1 to about 50% by weight of an acid; (B) a corrosion inhibiting effective amount of a concentrate consisting essentially of: (i) about 1 to about 80% by weight of a gelatin hydrolysate; (ii) about 0.1 to about 15% by weight of ethylene diamine dihydroiodide; (iii) about 5 to about 80% by weight of an inert solid diluent; and (iv) up to 10% by weight of a solid dedusting agent; and (C) water, if needed, to bring to 100%.
Claim 19
Dependent Claim
146 words
A corrosion inhibited acid cleaning composition consisting essentially of: (A) from about 1 to about 50% by weight of an acid; (B) a corrosion inhibiting effective amount of a concentrate consisting essentially of: (i) about 1 to about 50% by weight of a gelatin hydrolysate; (ii) about 0.1 to about 15% by weight of at least one iodine or iodide ion affording composition; (iii) about 1 to about 20% by weight of at least one surfactant selected from the group consisting of anionic, nonionic, and amphoteric surfactants; (iv) from about 1 to about 10% by weight of a polymer containing vinyl pyrrolidone monomeric units and having a viscosity average molecular weight of from about 5,000 to about 50,000; (v) from about 0.5 to about 5% by weight of an acidifier; and (vi) water to bring to 100%; and (C) water, if needed, to bring to 100%.
Claim 20
Dependent Claim
146 words
A corrosion inhibited acid cleaning composition consisting essentially of: (A) from about 1 to about 50% by weight of an acid; (B) a corrosion inhibiting effective amount of a concentrate consisting essentially of: (i) about 1 to about 50% by weight of a gelatin hydrolysate; (ii) about 0.1 to about 15% by weight of at least one iodine or iodide ion affording composition; (iii) about 1 to about 20% by weight of at least one surfactant selected from the group consisting of anionic, nonionic, and amphoteric surfactants; (iv) from about 1 to about 10% by weight of a polymer containing vinyl pyrrolidone monomeric units and having a viscosity average molecular weight of from about 5,000 to about 50,000; (v) from about 0.5 to about 5% by weight of an acidifier; and (vi) water to bring to 100%; and (C) water, if needed, to bring to 100%.
Claim 21
Dependent Claim
108 words
A corrosion inhibited acid cleaning composition consisting essentially of: (A) from about 1 to about 50% by weight of an acid; (B) a corrosion inhibiting effective amount of a concentrate consisting essentially of; (i) about 1 to about 50% by weight of a gelatin hydrolysate; (ii) about 0.1 to about 15% by weight of ethylene diamine dihydroiodide; (iii) about 1 to about 20% by weight of at least one surfactant selected from the group consisting of anionic, nonionic, and amphoteric surfactants; (iv) about 0.5 to about 5% by weight of an acidifier; and (v) water to bring to 100%; and (C) water, if needed, to bring to 100%.
Claim 22
Dependent Claim
108 words
A corrosion inhibited acid cleaning composition consisting essentially of: (A) from about 1 to about 50% by weight of an acid; (B) a corrosion inhibiting effective amount of a concentrate consisting essentially of; (i) about 1 to about 50% by weight of a gelatin hydrolysate; (ii) about 0.1 to about 15% by weight of ethylene diamine dihydroiodide; (iii) about 1 to about 20% by weight of at least one surfactant selected from the group consisting of anionic, nonionic, and amphoteric surfactants; (iv) about 0.5 to about 5% by weight of an acidifier; and (v) water to bring to 100%; and (C) water, if needed, to bring to 100%.
References Cited (Backward Citations)
US2708184A
Cited
US3087853A
Cited
US2977315A
Cited
US3249547A
Cited
US3029183A
Cited
US3136755A
Cited
US3161598A
Cited
GB1052771A
Cited
US3260673A
Cited
US3296149A
Cited
US3505184A
Cited
US3349037A
Cited
US3539520A
Cited
US3687855A
Cited
US3728267A
Cited
US3773465A
Cited
US3686129A
Cited
US3728449A
Cited
JPS4935244A
Cited
US3816322A
Cited
US3911107A
Cited
US4017407A
Cited
US3898326A
Cited
US4094967A
Cited
US4088597A
Cited
US4275194A
Cited
US4214059A
Cited
US4518519A
Cited
US4444756A
Cited
US4595517A
Cited
US4576818A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-24 | 1993-01-23 | 1993-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-24 | 1997-01-23 | 1997-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-24 | 2001-01-23 | 2001-07-25 | $7700.00 | Window Closed / Lapsed |