US4425266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Use of N-oxalkylated derivatives of aniline as a polymer-dissolving component in floor cleaners
Assignee: Huels AG
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Filing: 1982-02-22
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Granted: 1984-01-10
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Expires: 2002-02-22
Abstract
Abstract N-oxalkylated derivatives of aniline of the formula ##STR1## wherein R 1 and R 2 each independently is hydrogen, NH 2 , or lower alkyl; R 3 is hydrogen or lower alkyl, R 4 is hydrogen or methyl, and n is a number from 1.0 to 5.0, are useful as polymer-dissolving components in floor cleaners.
Inventors
- 👤 Rudolf Beck
- 👤 Sigrid Scholz-Weigl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:49
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/26; C11D3/30; C11D3/43
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
80 words
In a surface cleaner, useful for cleaning floors, comprising a component for dissolving polymers, the improvement wherein the surface cleaner has essentially no blue coloration and said component is an N-oxalkylated aniline of the formula ##STR5## wherein R 1 and R 2 are the same or different and each is hydrogen, NH 2 or C 1-4 -alkyl, R 3 is hydrogen or C 1-4 -alkyl, R 4 is hydrogen or methyl, and n is a number from 1.0 to 5.0.
Claim 2
Dependent Claim
80 words
In a surface cleaner, useful for cleaning floors, comprising a component for dissolving polymers, the improvement wherein the surface cleaner has essentially no blue coloration and said component is an N-oxalkylated aniline of the formula ##STR5## wherein R 1 and R 2 are the same or different and each is hydrogen, NH 2 or C 1-4 -alkyl, R 3 is hydrogen or C 1-4 -alkyl, R 4 is hydrogen or methyl, and n is a number from 1.0 to 5.0.
Claim 3
Dependent Claim
22 words
A cleaner of claim 1 wherein the n-oxalkylated aniline is of the formula ##STR6## wherein n is as defined in claim 1.
Claim 4
Dependent Claim
16 words
A cleaner of claim 1 or 2 wherein n is a number from 1 to 3.
Claim 5
Dependent Claim
14 words
A cleaner of claim 3 wherein n is a number from 1 to 2.
Claim 6
Dependent Claim
10 words
A cleaner of claim 1 wherein R 4 is methyl.
Claim 7
Dependent Claim
28 words
A method of cleaning a floor-like surface comprising cleaning the surface with a cleaner comprising a component for dissolving polymers, wherein the cleaner is that of claim 1.
Claim 8
Dependent Claim
28 words
A method of cleaning a floor-like surface comprising cleaning the surface with a cleaner comprising a component for dissolving polymers, wherein the cleaner is that of claim 2.
Claim 9
Dependent Claim
28 words
A method of cleaning a floor-like surface comprising cleaning the surface with a cleaner comprising a component for dissolving polymers, wherein the cleaner is that of claim 3.
Claim 10
Dependent Claim
28 words
A method of cleaning a floor-like surface comprising cleaning the surface with a cleaner comprising a component for dissolving polymers, wherein the cleaner is that of claim 4.
Claim 11
Dependent Claim
14 words
A cleaner of claim 1 wherein n is a number from 1 to 1.5.
Claim 12
Dependent Claim
14 words
A cleaner of claim 2 wherein n is a number from 1 to 1.5.
Claim 13
Dependent Claim
114 words
In a surface cleaner, useful for cleaning floors, comprising a component for dissolving polymers, the improvement wherein the surface cleaner has essentially no blue coloration and said component is the product of the reaction of an amine of the formula ##STR7## with an alkylene oxide of the formula ##STR8## in the presence of an alkaline catalyst, wherein R 1 and R 2 are the same or different and each is hydrogen, NH 2 or C 1-4 -alkyl; R 3 is hydrogen or C 1-4 -alkyl, R 4 is hydrogen or methyl using a molar ratio of reactants to produce a product of the formula ##STR9## wherein n is a number from 1.0 to 5.0.
Claim 14
Dependent Claim
114 words
In a surface cleaner, useful for cleaning floors, comprising a component for dissolving polymers, the improvement wherein the surface cleaner has essentially no blue coloration and said component is the product of the reaction of an amine of the formula ##STR7## with an alkylene oxide of the formula ##STR8## in the presence of an alkaline catalyst, wherein R 1 and R 2 are the same or different and each is hydrogen, NH 2 or C 1-4 -alkyl; R 3 is hydrogen or C 1-4 -alkyl, R 4 is hydrogen or methyl using a molar ratio of reactants to produce a product of the formula ##STR9## wherein n is a number from 1.0 to 5.0.
Claim 15
Independent Claim
78 words
A method of dissolving polyethylene waxes, acrylic polymers or copolymers thereof, styrene polymers or copolymers thereof, paraffin waxes, resins or natural waxes, comprising treating such polymers with an N-oxalkylated aniline of the formula ##STR10## wherein R 1 and R 2 are the same or different and each is hydrogen, NH 2 or C 1-4 -alkyl; R 3 is hydrogen or C 1-4 -alkyl, R 4 is hydrogen or methyl, and n is a number from 1.0 to 5.0.
Claim 16
Independent Claim
78 words
A method of dissolving polyethylene waxes, acrylic polymers or copolymers thereof, styrene polymers or copolymers thereof, paraffin waxes, resins or natural waxes, comprising treating such polymers with an N-oxalkylated aniline of the formula ##STR10## wherein R 1 and R 2 are the same or different and each is hydrogen, NH 2 or C 1-4 -alkyl; R 3 is hydrogen or C 1-4 -alkyl, R 4 is hydrogen or methyl, and n is a number from 1.0 to 5.0.
References Cited (Backward Citations)
US3239468A
Cited
US3954648A
Cited
US3766076A
Cited
US3723148A
Cited
US3962151A
Cited
US4077896A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-01-09 | 1987-07-11 | 1988-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-09 | 1991-07-11 | 1992-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-09 | 1995-07-11 | 1996-01-10 | $7700.00 | Window Closed / Lapsed |