Patent US4127489A successfully refreshed from Google Patents.
US4127489A
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Process for making imidazolinium salts, fabric conditioning compositions and methods
Assignee: Procter and Gamble Co
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Filing: 1976-07-27
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Granted: 1978-11-28
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Expires: 1996-07-27
Abstract
Abstract A process for making quaternary imidazolinium fabric conditioning agents essentially free of amines, amine salts and alkoxylated forms of the quaternary imidazolinium salts. An aqueous liquid fabric conditioning composition containing quaternary imidazolinium conditioning agents essentially free of amines and amine salts possesses desirable stability and conditioning properties.
Inventors
- 👤 Hans J. Pracht
- 👤 Joseph P. Nirschl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:36
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/46; D06M13/47; D06M13/473; C; C07; C07D; C07D233/00; C07D233/04
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
148 words
A fabric conditioning composition comprising a quaternary imidazolinium salt of the following structure: ##STR12## wherein R and R 1 are aliphatic or cycloaliphatic hydrocarbon groups having from about 10 to about 22 carbon atoms, R 2 is an alkyl, substituted alkyl or aralkyl having from 1 to about 8 carbon atoms, R 3 and R 4 are hydrogen, hydroxy, short chain alkyl having from 1 to about 4 carbon atoms or hydroxy short chain alkyl having from 1 to about 4 carbon atoms, D is ##STR13## wherein n is a number from 1 to about 6, and X is an anion; said composition containing a total less than about 4% of primary amines, secondary amines and cyclic tertiary amine salts based on the weight of the imidazolinium salt and less than about 25% of an alkoxylated form of the imidazolinium salt based on the weight of said salt.
Claim 2
Dependent Claim
148 words
A fabric conditioning composition comprising a quaternary imidazolinium salt of the following structure: ##STR12## wherein R and R 1 are aliphatic or cycloaliphatic hydrocarbon groups having from about 10 to about 22 carbon atoms, R 2 is an alkyl, substituted alkyl or aralkyl having from 1 to about 8 carbon atoms, R 3 and R 4 are hydrogen, hydroxy, short chain alkyl having from 1 to about 4 carbon atoms or hydroxy short chain alkyl having from 1 to about 4 carbon atoms, D is ##STR13## wherein n is a number from 1 to about 6, and X is an anion; said composition containing a total less than about 4% of primary amines, secondary amines and cyclic tertiary amine salts based on the weight of the imidazolinium salt and less than about 25% of an alkoxylated form of the imidazolinium salt based on the weight of said salt.
Claim 3
Dependent Claim
31 words
The composition of claim 1 wherein the composition is in aqueous liquid form and the imidazolinium salt is present at a level of from about 1 to about 15% by weight.
Claim 4
Dependent Claim
24 words
The composition of claim 2 wherein R and R 1 are aliphatic or cycloaliphatic hydrocarbon groups having from about 14 to 20 carbon atoms.
Claim 5
Dependent Claim
13 words
The composition of claim 3 wherein R 3 and R 4 are hydrogen.
Claim 6
Dependent Claim
16 words
The composition of claim 4 wherein R and R 1 are derived from tallow fatty acid.
Claim 7
Dependent Claim
14 words
The composition of claim 5 wherein R 2 is methyl and X is methylsulfate.
Claim 8
Dependent Claim
36 words
The composition of claim 6 wherein D is ##STR14## The concentration of the imidazolinium salt is from about 2 to about 8% by weight and the pH of the composition is from about 4.5 to 7.
Claim 9
Dependent Claim
56 words
The composition of claim 2 wherein the concentration of the imidazolinium salt is from 2 to about 8% by weight and the composition additionally contains another organic fabric conditioning agent which is free of primary amines, secondary amines, and cyclic tertiary amine salts in an amount equal to from about 1 to about 12% by weight.
Claim 10
Dependent Claim
23 words
The composition of claim 8 wherein the additional fabric conditioning agent is selected from the group consisting of fatty nonionic and cationic materials.
Claim 11
Dependent Claim
26 words
The composition of claim 9 wherein the additional fabric conditioning agent is selected from the group consisting of quaternary ammonium compounds, fatty alcohols and sorbitan esters.
Claim 12
Dependent Claim
33 words
The composition of claim 10 wherein on the imidazolinium salt D is ##STR15## R 1 and R 2 contain from 14 to 20 carbon atoms and R 3 and R 4 are hydrogen.
Claim 13
Dependent Claim
24 words
The composition of claim 11 wherein on the imidazolinium salt R and R 1 are tallow, R 2 is methyl and X is methylsulfate.
Claim 14
Dependent Claim
35 words
The composition of claim 12 wherein the additional fabric conditioning agent is dimethyl ditallow ammonium chloride and the weight ratio of imidazolinium salt to dimethyl ditallow ammonium chloride is from about 20/80 to about 80/20.
Claim 15
Independent Claim
162 words
A method for conditioning fabrics comprising the steps: (a) washing fabrics in an aqueous detergent bath containing a detergent; (b) rinsing the fabrics in an aqueous rinse bath; (c) adding to said rinse bath from about 2 ppm to about 500 ppm of a fabric conditioning agent having the structure ##STR16## wherein R and R 1 are aliphatic or cycloaliphatic hydrocarbon groups having from about 10 to about 22 carbon atoms, R 2 is an alkyl, substituted alkyl or aralkyl having from 1 to about 8 carbon atoms, R 3 and R 4 are hydrogen, hydroxy, short chain alkyl having from 1 to about 4 carbon atoms or hydroxy short chain alkyl having from 1 to about 4 carbon atoms, D is ##STR17## wherein n is a number from 1 to about 6, and X is an anion; said imidazolinium salt containing a total less than about 4% of primary amines, secondary amines and cyclic tertiary amine salts; (d) drying said fabrics.
Claim 16
Independent Claim
162 words
A method for conditioning fabrics comprising the steps: (a) washing fabrics in an aqueous detergent bath containing a detergent; (b) rinsing the fabrics in an aqueous rinse bath; (c) adding to said rinse bath from about 2 ppm to about 500 ppm of a fabric conditioning agent having the structure ##STR16## wherein R and R 1 are aliphatic or cycloaliphatic hydrocarbon groups having from about 10 to about 22 carbon atoms, R 2 is an alkyl, substituted alkyl or aralkyl having from 1 to about 8 carbon atoms, R 3 and R 4 are hydrogen, hydroxy, short chain alkyl having from 1 to about 4 carbon atoms or hydroxy short chain alkyl having from 1 to about 4 carbon atoms, D is ##STR17## wherein n is a number from 1 to about 6, and X is an anion; said imidazolinium salt containing a total less than about 4% of primary amines, secondary amines and cyclic tertiary amine salts; (d) drying said fabrics.
Claim 17
Dependent Claim
33 words
The method of claim 14 wherein R and R 1 are aliphatic or cycloaliphatic hydrocarbon groups having from about 14 to about 20 carbon atoms and R 3 and R 4 are hydrogen.
Claim 18
Dependent Claim
20 words
The method of claim 15 wherein R 2 is methyl, X is methylsulfate and R and R 1 are tallow.
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) | 1981-11-27 | 1982-05-29 | 1982-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-27 | 1986-05-29 | 1986-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-27 | 1990-05-29 | 1990-11-28 | $7700.00 | Window Closed / Lapsed |