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US4790951A Expired / Lapsed US ⏱️ 0.0 years remaining

Liquid all-purpose cleaning preparations containing terpene and hydrogenated naphthalene as fat dissolving agent

Assignee: Henkel AG and Co KGaA
•
Filing: 1987-06-12
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Granted: 1988-12-13
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Expires: 2007-06-12
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Abstract

Abstract Liquid all-purpose preparations of the type containing anionic and/or nonionic surfactants, water soluble builders, and water-soluble solvents are significantly improved by the inclusion of a fat-dissolving agent consisting essentially of a terpene and a solvent based on completely or partially hydrogenated naphthalene.

Inventors

  • 👤 Erich P. Frieser
  • 👤 Alexander Jainschig

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 06:47
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/43; C11D3/16; C11D3/18

Claims Analysis

Total Claims: 27
Claim 1
Independent Claim 84 words
In a liquid cleaning preparation for removing fats and soil from hard surfaces of the type containing an anionic or nonionic surfactant or both; a water-soluble builder; and a water-miscible solvent; the improvement comprising a fat-dissolving agent consisting essentially of from about 0.25 to about 5.0% by weight of a terpene and from about 0.25 to about 5.0% by weight of a water-insoluble apolar solvent which is completely or partially hydrogenated naphthalene, and wherein the pH of the cleaning preparation is above about 7.
Claim 2
Dependent Claim 84 words
In a liquid cleaning preparation for removing fats and soil from hard surfaces of the type containing an anionic or nonionic surfactant or both; a water-soluble builder; and a water-miscible solvent; the improvement comprising a fat-dissolving agent consisting essentially of from about 0.25 to about 5.0% by weight of a terpene and from about 0.25 to about 5.0% by weight of a water-insoluble apolar solvent which is completely or partially hydrogenated naphthalene, and wherein the pH of the cleaning preparation is above about 7.
Claim 3
Dependent Claim 16 words
The liquid cleaning preparation of claim 1, wherein the apolar water-insoluble solvent is decahydronaphthalene or tetrahydronaphthalene.
Claim 4
Dependent Claim 20 words
The liquid cleaning preparation of claim 1, containing from about 0.5 to 2.5% by weight of the apolar water-insoluble solvent.
Claim 5
Dependent Claim 26 words
The liquid cleaning preparation of claim 1, wherein the total quantity of fat-dissolving agent is from about 1.5 to 5% by weight of the total preparation.
Claim 6
Dependent Claim 16 words
The liquid cleaning preparation of claim 1, wherein the pH is from about 8 to 10.
Claim 7
Dependent Claim 16 words
The liquid cleaning preparation of claim 1, wherein the terpene is a monocyclic or bicyclic monoterpene.
Claim 8
Dependent Claim 15 words
The liquid cleaning preparation of claim 6, wherein the terpene is an α- or β-terpene.
Claim 9
Dependent Claim 18 words
The liquid cleaning preparation of claim 6, wherein the terpene is D-limonene, L-limonene, dipentene, or α- or β-pinene.
Claim 10
Dependent Claim 14 words
The liquid cleaning preparation of claim 1, wherein the terpene is a pine oil.
Claim 11
Dependent Claim 14 words
The liquid cleaning preparation of claim 6, wherein the naphthalene is decahydro- or tetrahydro-naphthalene.
Claim 12
Dependent Claim 20 words
The liquid cleaning preparation of claim 2, containing from about 0.25 to 5.0% by weight of the apolar water-insoluble solvent.
Claim 13
Dependent Claim 20 words
The liquid cleaning preparation of claim 2, containing from about 0.5 to 2.5% by weight of the apolar water-insoluble solvent.
Claim 14
Dependent Claim 32 words
The liquid cleaning preparation of claim 2, wherein the total quantity of the terpene and apolar water-insoluble solvent fat-dissolving agent is from about 0.5 to 10% by weight of the total preparation.
Claim 15
Dependent Claim 26 words
The liquid cleaning preparation of claim 2, wherein the total quantity of fat-dissolving agent is from about 1.5 to 5% by weight of the total preparation.
Claim 16
Dependent Claim 15 words
The liquid cleaning preparation of claim 2, wherein the pH value is above about 7.
Claim 17
Dependent Claim 16 words
The liquid cleaning preparation of claim 2, wherein the pH is from about 8 to 10.
Claim 18
Dependent Claim 16 words
The liquid cleaning preparation of claim 2, wherein the terpene is a monocyclic or bicyclic monoterpene.
Claim 19
Dependent Claim 15 words
The liquid cleaning preparation of claim 2, wherein the terpene is an α- or β-terpene.
Claim 20
Dependent Claim 18 words
The liquid cleaning preparation of claim 2, wherein the terpene is D-limonene, L-limonene, dipentene or α- or β-pinene.
Claim 21
Dependent Claim 14 words
The liquid cleaning preparation of claim 2, wherein the terpene is a pine oil.
Claim 22
Dependent Claim 109 words
A liquid cleaning preparation for removing fats and soil from hard surfaces comprising: A. from about 1 to about 25% by weight of an anionic surfactant, a nonionic surfactant, or both of the foregoing; B. from about 0.1 to about 10% by weight of a water-soluble builder, C. from about 1 to about 15% by weight of a water-miscible solvent; D. from about 0.25 to about 5.0% by weight of a water-insoluble apolar solvent which is completely or partially hydrogenated naphthalene; and E. from about 0.25 to about 5.0% by weight of a terpene; wherein the percentages by weight are based on the weight of the liquid cleaning preparation.
Claim 23
Dependent Claim 109 words
A liquid cleaning preparation for removing fats and soil from hard surfaces comprising: A. from about 1 to about 25% by weight of an anionic surfactant, a nonionic surfactant, or both of the foregoing; B. from about 0.1 to about 10% by weight of a water-soluble builder, C. from about 1 to about 15% by weight of a water-miscible solvent; D. from about 0.25 to about 5.0% by weight of a water-insoluble apolar solvent which is completely or partially hydrogenated naphthalene; and E. from about 0.25 to about 5.0% by weight of a terpene; wherein the percentages by weight are based on the weight of the liquid cleaning preparation.
Claim 24
Dependent Claim 74 words
The liquid cleaning preparation of claim 21 wherein: component A is present in from about 3 to about 10% by weight; component B is present in from about 0.5 to about 5% by weight; Component C is present in from about 5 to about 10% by weight; Component D is present in from about 0.5 to about 2.5% by weight; and component E is present in from about 0.5 to about 2.5% by weight.
Claim 25
Dependent Claim 15 words
The liquid cleaning preparation of claim 21 wherein the pH thereof is above about 7.
Claim 26
Dependent Claim 18 words
The liquid cleaning preparation of claim 23 wherein the pH thereof is from about 8 to about 10.
Claim 27
Dependent Claim 131 words
The liquid cleaning preparation of claim 21 wherein: component A is one or more of a linear alkylbenzene sulfonate, an alkane sulfonate, an olefin sulfonate, an alkyl sulfate, a α-sulfofatty acid methyl ester, a fatty alcohol ether sulfate, a fatty acid in the form of its alkali metal or amine salt, an ethoxylated alcohol, acid or amine containing a C 10 -C 18 -carbon chain and from 4 to 20 moles ethylene oxide, or an amine oxide; component B is one or more of a tri- or pyrophosphate, an organophosphonic acid, an aminopolycarboxylic acid, a polycarboxylic acid, a polyacrylic acid, a polyaldehydocarboxylic acid, citric acid, or gluconic acid; and component C is one or more of an alcohol, glycol, a glycol ether, urea, or a C 1 -C 3 alkylbenzene sulfonate.

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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) 1991-12-13 1992-06-13 1992-12-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-12-13 1996-06-13 1996-12-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-12-13 2000-06-13 2000-12-13 $7700.00 Window Closed / Lapsed

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