US4246040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface treatment method
Assignee: Nihonshikizai Kogyo Co Ltd
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Filing: 1979-05-18
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Granted: 1981-01-20
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Expires: 1999-05-18
Abstract
Abstract An excellent hydrophilic or lipophilic property is given to a powdery or granular solid substance by reacting a basic polyaluminium salt with an acid or its salt in the presence of the powdery or granular solid substance.
Inventors
- 👤 Jugoro Okumura
- 👤 Satoshi Noma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:58
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0001; C09B67/0004; C09B67/0008; C09B67/0013; C09C; C09C1/00; C09C1/36; C09C1/3692; C09C3/00; C09C3/006; C09C3/06; C09C3/08; C01; C01P; C01P2004/00; C01P2004/50; C01P2006/00; C01P2006/60; C01P2006/90
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
74 words
A method of surface treating a powdery or granular solid substance which comprises reacting a basic polyaluminum salt with an acid or its salt in the presence of a powdery or granular solid substance, said basic polyaluminum salt having the composition formula Al.sub.2+n (OH).sub.3n X.sub.m wherein m is a number produced by dividing 6 by the valence of X, n is a positive integer of not less than 4, and X is an anion.
Claim 2
Independent Claim
74 words
A method of surface treating a powdery or granular solid substance which comprises reacting a basic polyaluminum salt with an acid or its salt in the presence of a powdery or granular solid substance, said basic polyaluminum salt having the composition formula Al.sub.2+n (OH).sub.3n X.sub.m wherein m is a number produced by dividing 6 by the valence of X, n is a positive integer of not less than 4, and X is an anion.
Claim 3
Dependent Claim
21 words
A method as claimed in claim 1, wherein the acid is an inorganic acid and the solid substance is a pigment.
Claim 4
Dependent Claim
21 words
A method as claimed in claim 1, wherein the acid is an organic acid and the solid substance is a pigment.
Claim 5
Dependent Claim
22 words
A method as claimed, in claim 3, wherein the pigment is titanium dioxide, carbon black, iron oxide yellow, tartrazine or permanent orange.
Claim 6
Dependent Claim
27 words
A method as claimed in claim 1, wherein the acid is sulfuric acid, phosphoric acid, chromic acid, silicic acid, tripolyphosphoric acid, vitriform phosphoric acid or molybdic acid.
Claim 7
Dependent Claim
21 words
A method as claimed in claim 1, wherein the acid is an aliphatic carboxylic acid of 6 to 22 carbon atoms.
Claim 8
Dependent Claim
34 words
A method as claimed in claim 1, wherein the aliphatic carboxylic acid is caproic acid, caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, ricinolic acid or isostearic acid.
Claim 9
Dependent Claim
23 words
A method as claimed in claim 1, wherein the acid is a mono-cyclic or poly-cyclic carboxylic acid of 7 to 30 carbon atoms.
Claim 10
Dependent Claim
68 words
A method as claimed in claim 8, wherein the mono-cyclic or poly-cyclic carboxylic acid is a member selected from the group consisting of cinnamic acid, o-benzoylbenzoic acid, cumic acid, diphenylacetic acid, p-ethoxybenzoic acid, naphthalic acid, naphthenic acid, α-naphthoic acid, alkylnaphthalene carboxylic acid, naphthoxyacetic acid, 1-naphthylacetic acid, p-t-butyl-benzoic acid, p-n-hexylbenzoic acid, p-n-octylbenzoic acid, p-n-nonylphenoxyacetic acid, p-n-nonylbenzoic acid, glycyrrhetic acid, glycyrrhizic acid, shellac, cholic acid, benzylic acid and cholanic acid.
Claim 11
Independent Claim
19 words
A method as claimed in any of claims 2 to 9, wherein the salt is an alkali metal salt.
Claim 12
Dependent Claim
13 words
A method as claimed in claim 10, wherein the salt is sodium salt.
Claim 13
Dependent Claim
33 words
A method as claimed in claim 1, wherein the basic polyaluminum salt has a molecular weight of 300 to 50000, and n is an integer in the range of from 4 to 14.
Claim 14
Dependent Claim
18 words
A method as claimed in claim 1, wherein X is chlorine, n is 4 and m is 6.
Claim 15
Dependent Claim
18 words
A method as claimed in claim 1, wherein X is chlorine, n is 10 and m is 6.
Claim 16
Dependent Claim
34 words
A method as claimed in claim 1, wherein X is chlorine, n is 4 or 10, m is 6; the solid substance is titanium dioxide; and the acid or its salt is sodium stearate.
Claim 17
Dependent Claim
35 words
A method as claimed in claim 1, wherein X is chlorine, n is 4 or 10, m is 6; the solid substance is titanium dioxide; and the acid or its salt is sodium lauryl sulfate.
Claim 18
Dependent Claim
40 words
A method as claimed in claim 1, wherein X is chlorine, n is 4 or 10, m is 6; the solid substance is titanium dioxide; and the acid or its salt is a mixture of sodium stearate and sodium silicate.
Claim 19
Dependent Claim
34 words
A method as claimed in claim 1, wherein X is chlorine, n is 4 or 10, m is 6; the solid substance is carbon black; and the acid or its salt is sodium tripolyphosphate.
Claim 20
Dependent Claim
35 words
A method as claimed in claim 1, wherein X is chlorine, n is 4 or 10, m is 6; the solid substance is iron oxide yellow; and the acid or its salt is lauric acid.
Claim 21
Dependent Claim
41 words
A method as claimed in claim 1, wherein X is chlorine, n is 4 or 10, m is 6; the solid substance is iron oxide yellow; and the acid or its salt is a mixture of sodium silicate and lauric acid.
Claim 22
Dependent Claim
39 words
A method as claimed in claim 1, wherein X is chlorine, n is 4 or 10, m is 6; the solid substance is a mixture of titanium dioxide and tartrazine; and the acid or its salt is sodium stearate.
Claim 23
Dependent Claim
40 words
A method as claimed in claim 1, wherein X is chlorine, n is 4 or 10, m is 6; the solid substance is a mixture of titanium dioxide and permanent orange; and the acid or its salt is magnesium sulfate.
Claim 24
Dependent Claim
41 words
A method as claimed in claim 1, wherein X is chlorine, n is 4 or 10, m is 6; the solid substance is a mixture of talc and erythrosine; and the acid or its salt is (NaPO 3 ) n .
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-01-20 | 1984-07-21 | 1985-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-20 | 1988-07-21 | 1989-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-20 | 1992-07-21 | 1993-01-20 | $7700.00 | Window Closed / Lapsed |