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US4797274A Expired / Lapsed US ⏱️ 0.0 years remaining

Composition comprising copper compound

Assignee: Zeon Corp
•
Filing: 1987-08-25
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Granted: 1989-01-10
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Expires: 2007-08-25
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Abstract

Abstract A composition comprising a copper compound, and blended with it, (A) an L-ascorbic acid compound and/or an erythorbic acid compound and (B) a hydroxycarboxylic acid compound. The compound has excellent deodorizing, fungicidal and moldproof properties.

Inventors

  • 👤 Yoshiaki Miki
  • 👤 Tsunehisa Ueda

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 08:31
CPC Classifications
A; A61; A61L; A61L9/00; A61L9/01; A01; A01N; A01N59/00; A01N59/16; A01N59/20

Claims Analysis

Total Claims: 17
Claim 1
Independent Claim 26 words
A composition comprising a copper compound, and blended with it, (A) an L-ascorbic acid compound and/or an erythorbic acid compound and (B) an hydroxycarboxylic acid compound.
Claim 2
Dependent Claim 26 words
A composition comprising a copper compound, and blended with it, (A) an L-ascorbic acid compound and/or an erythorbic acid compound and (B) an hydroxycarboxylic acid compound.
Claim 3
Dependent Claim 14 words
The composition of claim 1 which is in the form of an aqueous solution.
Claim 4
Dependent Claim 13 words
The composition of claim 1 which is in the form of a powder.
Claim 5
Dependent Claim 16 words
The composition of claim 3 which is obtained by drying the aqueous solution of claim 2.
Claim 6
Dependent Claim 21 words
The composition of claim 3 which is obtained by blending a powder of the copper compound with components (A) and (B).
Claim 7
Dependent Claim 27 words
The composition of claim 1 wherein the amount of component (A) blended is 0.01 to 100 moles per mole of the copper ion in the copper compound.
Claim 8
Dependent Claim 27 words
The composition of claim 1 wherein the amount of component (B) blended is 0.1 to 1000 moles per mole of the copper ion in the copper compound.
Claim 9
Dependent Claim 18 words
The composition of claim 1 wherein the copper compound is copper sulfate, cupric chloride or copper chlorophyllin sodium.
Claim 10
Dependent Claim 16 words
The composition of claim 1 wherein the hydroxycarboxylic acid compound is an aliphatic hydroxycarboxylic acid compound.
Claim 11
Dependent Claim 19 words
The composition of claim 1 wherein the hydroxycarboxylic acid compound is a compound having 2 to 8 carbon atoms.
Claim 12
Dependent Claim 15 words
The composition of claim 1 wherein the hydroxycarboxylic acid is citric acid or gluconic acid.
Claim 13
Dependent Claim 121 words
A composition capable of deodorizing alkaline substances including ammonia and mercaptan which comprises a copper compound selected from the group consisting of inorganic acid salts, organic acid salts, complexes and oxides of copper, with (A) 0.01 to 100 moles, per mole of the copper ion in the copper compound, of L-ascorbic acid, erythorbic acid, or mixtures thereof, and (B) from 0.1 to 1,000 moles, per mole of the copper ion in the copper compound of a hydroxycarboxylic acid or a water-soluble salt thereof whereby when used in the deodorization of alkaline substances, such as ammonia, precipitation of the copper compound is inhibited and whereby the formation of a chelate of the copper compound with the hydroxycarboxylic acid compound is also inhibited.
Claim 14
Dependent Claim 121 words
A composition capable of deodorizing alkaline substances including ammonia and mercaptan which comprises a copper compound selected from the group consisting of inorganic acid salts, organic acid salts, complexes and oxides of copper, with (A) 0.01 to 100 moles, per mole of the copper ion in the copper compound, of L-ascorbic acid, erythorbic acid, or mixtures thereof, and (B) from 0.1 to 1,000 moles, per mole of the copper ion in the copper compound of a hydroxycarboxylic acid or a water-soluble salt thereof whereby when used in the deodorization of alkaline substances, such as ammonia, precipitation of the copper compound is inhibited and whereby the formation of a chelate of the copper compound with the hydroxycarboxylic acid compound is also inhibited.
Claim 15
Dependent Claim 50 words
The composition of claim 12 wherein the amount of component (A) is from 0.05 to 50 moles, per mole of the copper ion in the copper compound, and the amount of the component (B) is from 0.5 to 250 moles, per mole of the copper ion in the copper compound.
Claim 16
Dependent Claim 32 words
The composition of claim 12 wherein the copper compound is copper sulfate, cooper chloride or copper chlorophyllin sodium, and component (A) is an aliphatic hydroxycarboxylic acid having 2 to 8 carbon atoms.
Claim 17
Dependent Claim 15 words
The composition of claim 14 wherein the hydroxycarboxylic acid is citric acid or gluconic acid.

References Cited (Backward Citations)

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US2337466A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1992-01-10 1992-07-11 1993-01-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1996-01-10 1996-07-11 1997-01-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2000-01-10 2000-07-11 2001-01-10 $7700.00 Window Closed / Lapsed

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