EP0182272A2
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EP
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Improved surfactant-based solvent system for dewatering different substrates
Assignee: Honeywell International Inc
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Filing: 1985-11-13
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Granted: —
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Expires: 2005-11-13
Abstract
Abstract This invention relates to improved drying compositions comprising a volatile halocarbon and one or more aromatic quaternary ammonium salts of a phosphate ester, and methods of using such compositions for cleaning and/or drying non-absorbent articles.
Inventors
- 👤 Stanley Steven Seelig
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 13:49
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/02; C11D1/34; C09; C09K; C09K3/00; C09K3/18; C11D1/38; C11D1/62; C11D3/00; C11D3/16; C11D3/18; C11D3/43; C23; C23G; C23G5/00; C23G5/02; C23G5/028; C23G5/02809; C23G5/02812; C23G5/02816; C23G5/02819
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
242 words
A solvent-surfactant drying composition which comprises: one or more volatile halocarbons and an effective amount of one or more aromatic quaternary ammonium salts of a phosphate acid ester of the formula: wherein: A + is a moiety of the formula: B is a moiety of the formula: n and m are integers from 0 to about 10 provided that n + m is not greater than 10, and further provided that n + m is equal to or greater than 1 when R 5 , R 6 , R 7 and R 8 are other than aryl, aralkyl or alkylaryl; R 1 is alkyl having from about 1 to about 2 carbon atoms; R 2 is alkyl having from about 8 to about 18 carbon atoms; R 3 is R 1 or R 2 ; R 4 is R 1 , R 2 , aryl, aralkyl or alkaryl; and R 5 , R 6 , R 7 and R 8 are the same or different at each occurrence and are hydrogen, alkyl having from about 8 to about 18 carbon atoms, aryl, aralkyl or alkylaryl; with the proviso that at least one of R 4 , R 5 , R 61 R 7 and R 8 is aryl, aralkyl or alkaryl when n + m is 0, and with the further proviso that at least one of R 5 , R 6 , R 7 and R 8 is other than hydrogen.
Claim 2
Dependent Claim
242 words
A solvent-surfactant drying composition which comprises: one or more volatile halocarbons and an effective amount of one or more aromatic quaternary ammonium salts of a phosphate acid ester of the formula: wherein: A + is a moiety of the formula: B is a moiety of the formula: n and m are integers from 0 to about 10 provided that n + m is not greater than 10, and further provided that n + m is equal to or greater than 1 when R 5 , R 6 , R 7 and R 8 are other than aryl, aralkyl or alkylaryl; R 1 is alkyl having from about 1 to about 2 carbon atoms; R 2 is alkyl having from about 8 to about 18 carbon atoms; R 3 is R 1 or R 2 ; R 4 is R 1 , R 2 , aryl, aralkyl or alkaryl; and R 5 , R 6 , R 7 and R 8 are the same or different at each occurrence and are hydrogen, alkyl having from about 8 to about 18 carbon atoms, aryl, aralkyl or alkylaryl; with the proviso that at least one of R 4 , R 5 , R 61 R 7 and R 8 is aryl, aralkyl or alkaryl when n + m is 0, and with the further proviso that at least one of R 5 , R 6 , R 7 and R 8 is other than hydrogen.
Claim 3
Dependent Claim
199 words
A solvent-surfactant drying composition according to claim 1 which comprises an effective amount of one or more aromatic quaternary ammonium salts of a phosphate acid ester of the formula: wherein: A is a moiety of the formula: B is a moiety of the formula: n and m are integers from 0 to about 10, provided that n + m is not greater than 10; R 1 is alkyl having from about 1 to about 2 carbon atoms; R 2 is alkyl having from about 8 to about 18 carbon atoms; R 3 is R 1 or R 2 ; R 4 is R 1 , R 2 , aryl aralkyl or alkaryl; and R 5 , R6, R 7 and R 8 are the same or different at each occurrence and are hydrogen, alkyl having from about 8 to about 18 carbon atoms, aryl, aralkyl or alkylaryl; with the proviso that at least one of R 4 , R 5 , R 6 , R 7 and R 8 are aryl, aralkyl or alkaryl, and with the further proviso that at least one of R 5 , R 6 , R 7 and R 8 is other than hydrogen.
Claim 4
Dependent Claim
11 words
A composition according to claim 3 comprising a single halocarbon 1,1,2-trichloro-1,2,2-trifluoroethane.
Claim 5
Dependent Claim
118 words
A composition according to claim 2 wherein: n and m are integers from about 0 to about 2, provided that m + n is not greater than 5; R 1 and R 3 are the same or different and are methyl or ethyl; R 2 is alkyl having from about 12 to about 16 carbon atoms; R 4 is aryl, aralkyl or alkylaryl; and R 5 , R 6 , R 7 and R 8 are the same or different and are hydrogen, alkyl having from about 8 to about 18 carbon atoms or alkaryl, with the proviso that at least one of R 5 , R 6 , R 7 and R 8 is other than hydrogen.
Claim 6
Dependent Claim
14 words
A composition according to claim 4 wherein R 1 and R 3 are methyl.
Claim 7
Dependent Claim
13 words
A composition according to claim 4 wherein R 4 is benzyl or naphthyl.
Claim 8
Dependent Claim
32 words
A composition according to claim 4 wherein: R 5 and R 7 are the same or different and are hydrogen or octylphenyl; and R 6 and R 8 are R 7 .
Claim 9
Dependent Claim
32 words
A composition according to claim 2 wherein said composition comprises a mixture of quaternary ammonium salts in which R 2 is a mixture of alkyls having 12, 14 and 16 carbon atoms.
Claim 10
Dependent Claim
29 words
A composition according to claim 2 wherein aid salts are selected from the group consisting of n-alkyl dimethyl benzyl ammonium salts of bis-(2-ethylhexyl) hydrogen pyrophosphate and octylphenyl hydrogen phosphate.
Claim 11
Dependent Claim
28 words
A composition according to claim 2 wherein said composition comprises not more than about 5 weight percent of said salts based on the total weight of the composition.
Claim 12
Dependent Claim
46 words
A process of cleaning and/or drying non-absorbent articles comprising the steps of: (a) immersing the article in the composition of claim 1; (b) removing the article from said composition; and (c) drying said article by effecting evaporation of said composition from the surface of said article.
Claim 13
Dependent Claim
68 words
A process of cleaning and/or drying non- absorbent articles comprising the steps of: (a) immersing the article in the composition of claim 1; (b) removing the article from said composition; (c) contacting the article with hot or cold solvent without surfactant present; (d) removing the article from contact with said solvent of said composition from the water of said article; and (e) drying said article by effecting evaporation.
Claim 14
Dependent Claim
221 words
A quaternary ammonium salt of a phosphate acid ester of the formula: wherein: A + is a moiety of the formula: B - is a moiety of the formula: n and m are integers from 0 to about 10 provided that n + m is not greater than 10 and further provided that n + m is equal to or greater than 1 when R 5 , R6, R 7 and R 8 are other than aryl, aralkyl or alkylaryl; R 1 is alkyl having from about 1 to about 2 carbon atoms; R 2 is alkyl having from about 8 to about 18 carbon atoms; R 3 is R 1 or R 2 ; R 4 is R 1 , R 2 , aryl, aralkyl or alkaryl and R 5 , R 6' R 7 and R 8 are the same or different at each occurrence and are hydrogen alkyl having from about 8 to about 18 carbon atoms, aryl, aralkyl or alkylaryl; with the proviso that at least one of R 4 , R 5 , R 6 , R 7 and R 8 are aryl, aralkyl or alkaryl when n + m is 0, and with the further proviso that at least one of R 5 , R 61 R 7 and R 8 is other than hydrogen.
Claim 15
Dependent Claim
221 words
A quaternary ammonium salt of a phosphate acid ester of the formula: wherein: A + is a moiety of the formula: B - is a moiety of the formula: n and m are integers from 0 to about 10 provided that n + m is not greater than 10 and further provided that n + m is equal to or greater than 1 when R 5 , R6, R 7 and R 8 are other than aryl, aralkyl or alkylaryl; R 1 is alkyl having from about 1 to about 2 carbon atoms; R 2 is alkyl having from about 8 to about 18 carbon atoms; R 3 is R 1 or R 2 ; R 4 is R 1 , R 2 , aryl, aralkyl or alkaryl and R 5 , R 6' R 7 and R 8 are the same or different at each occurrence and are hydrogen alkyl having from about 8 to about 18 carbon atoms, aryl, aralkyl or alkylaryl; with the proviso that at least one of R 4 , R 5 , R 6 , R 7 and R 8 are aryl, aralkyl or alkaryl when n + m is 0, and with the further proviso that at least one of R 5 , R 61 R 7 and R 8 is other than hydrogen.
Claim 16
Dependent Claim
195 words
A quaternary ammonium salt of a phosphate acid ester according to claim 13 wherein salt is an aromatic salt of the formula: wherein: A + is a moiety of the formula: B is a moiety of the formula: n and m are integers from 0 to about 10 provided that n + m is not greater than 10; R 1 is alkyl having from about 1 to about 2 carbon atoms; R 2 is alkyl having from about 8 to about 18 carbon atoms; R 3 is R 1 or R 2 ; R 4 is R 1 , R 2 , aryl, aralkyl or alkaryl and R 5 , R 6 , R 7 and R 8 are the same or different at each occurrence and are hydrogen alkyl having from about 8 to about 18 carbon atoms, aryl, aralkyl or alkylaryl; with the proviso that at least one of R 4 , R 5 , R 6 , R 7 and R 8 is aryl, aralkyl or alkaryl, and with the further proviso that at least one of R 5 , R 6 , R 7 and R 8 is other than hydrogen.
References Cited (Backward Citations)
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