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EP0866115A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Cleaning composition comprising fluoro-surfactants

Assignee: Unilever PLC
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Filing: 1998-03-05
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Granted: —
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Expires: 2018-03-05
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Abstract

Abstract The invention relates to compositions for cleaning hard surfaces, wherein said composition comprises both cleans the surface and prevents or retards further soiling of the surface and provides an aqueous, hard-surface cleaning composition comprising a surfactant mixture, wherein said surfactant mixture comprises: a) a cationic fluorosurfactant, and, b) a non-fluorinated nonionic surfactant. It is believed that the cationic fluorosurfactants present in the compositions of the present invention modify the surface energy of surfaces to which the composition is applied so as to raise the contact angle of soil subsequently deposited on the modified surface. Suitable fluorosurfactant compounds can be broadly described as compounds which contain at least one CF 3 moiety and a group carrying a positive charge. Preferably, the fluorosurfactants employed in the present invention are of the general formula: (I)    CF 3 -L-N + R 1 R 2 R 3 wherein L is a linking group which is preferably selected from linear or branched aliphatic or fluoro-aliphatic chains which may contain heteroatoms and R 1 , R 2 , and R 3 are preferably short chain alkyl groups, typically C1-C5 alkyl groups of which methyl groups are preferred: in an alternative, one of R 1 , R 2 or R 3 is itself a moiety of the form CF 3 -L-.

Inventors

  • 👤 Matthew James Leach
  • 👤 Yoshihisa Niwata

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-29 22:22
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/26; C11D3/30; C11D1/00; C11D1/66; C11D1/835; C11D3/43; C11D1/004; C11D1/72

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 24 words
An aqueous, hard-surface cleaning composition comprising a surfactant mixture, wherein said surfactant mixture comprises: a) a cationic fluorosurfactant, and, b) a non-fluorinated nonionic surfactant.
Claim 2
Dependent Claim 82 words
A composition according to claim 1 wherein the fluorosurfactant is of the general formula: (I)   CF 3 -L-N + R 1 R 2 R 3 wherein L is a linking group which is selected from linear or branched aliphatic or fluoro-aliphatic chains which optionally contain heteroatoms and R 1 , R 2 , and R 3 are each C1-C5 alkyl groups or one of R 1 , R 2 or R 3 is itself a moiety of the form CF 3 -L-.
Claim 3
Dependent Claim 170 words
A composition according to claim 1 wherein linking group L comprises a backbone which is at least six carbon or heteroatom units long and L is selected from the group comprising: (II)   -(CF 2 ) n -(CH 2 ) m SCH 2 CHOH-CH 2 - where n + m is 6-22, (III)   -R 4 CH 2 CH 2 CH(R 4 .CF 3 )NHCOCH 2 - where R 4 is -(CF 2 ) n (CH2) m O(CO)- and n+m is 6 to 22, (IV)   -(CF 2 ) n -(CH 2 ) m O(CO)CH 2 -CH 2 - where n + m is 6-22, (V)   -R 5 CH 2 CH(R 5 .CF 3 )CH 2 - where R 5 is -(CF 2 ) n (CH2) m O(CO)- and n+m is 6 to 22, (VI)   -(CF 2 ) n -(CH 2 ) m - where n + m is 6-22, and, (VII)   -(CF 2 ) n -(CH 2 ) m SO 2 NH(CH 2 ) 3 - where n + m is 6-22,
Claim 4
Dependent Claim 307 words
A composition according to claim 1 wherein the fluorosurfactant materials is selected from the groups comprising: (IIa)   CF 3 -(CF 2 ) n -(CH 2 ) m SCH 2 CHOH-CH 2 -N + R 1 R 2 R 3 where n is 5-9 and m is 2, and R 1 R 2 and R 3 are -CH 3 , (IIIa)   CF 3 -R 4 CH 2 CH 2 CH(R 4 .CF 3 )NHCOCH 2 -N + R 1 R 2 R 3 where R 4 is -(CF 2 ) n (CH2) m O(CO)-, n is 5-9 and m is 2, and R 1 R 2 and R 3 are -CH 3 , (IVa)   CF 3 -(CF 2 ) n -(CH 2 ) m O(CO)CH 2 -CH 2 -N + R 1 R 2 R 3 , where R 1 R 2 , are -CH 3 and R 3 is CF 3 -(CF 2 ) n -(CH 2 ) m O(CO)CH 2 -CH 2 - and n is 5-9 and m is 2, (Va)   CF 3 -R 5 CH 2 CH(R 5 .CF 3 )CH 2 -N + R 1 R 2 R 3 where R 1 , R 2 and R 3 are -CH 3 , R 5 is -(CF 2 ) n (CH2) m O(CO)-, n is 5-9 and m is 2, (VIa)   CF 3 -(CF 2 ) n -(CH 2 ) m -N + R 1 R 2 R 3 where n + m is 6-22 and R 1 , R 2 and R 3 are -CH 3 , and, (VIIa)   CF 3 -(CF 2 ) n -(CH 2 ) m SO 2 NH(CH 2 ) 3 -N + R 1 R 2 R 3 where n is 5-9 and m is 0, and R 1 R 2 and R 3 are -CH 3 .
Claim 5
Dependent Claim 20 words
Composition according to claim 1 comprising a) 0.05-5% of a cationic fluorosurfactant, and, b) 1-30% of a non-fluorinated nonionic surfactant.
Claim 6
Dependent Claim 21 words
Composition according to claim 1 wherein the nonionic surfactant comprises an alkoxylated alcohol having 6-14 carbons and 2-9 moles of alkoxylation.
Claim 7
Dependent Claim 36 words
Composition according to claim 1 which comprises: a) 0.1-1% of cationic fluorosurfactant IIa, VIa or VIIa, b) 2-15% of an alkoxylated alcohol nonionic surfactant, and, c) 1-6% of an alkanolamine, said composition being of pH 10-13.
Claim 8
Dependent Claim 22 words
Composition according to claim 4 which comprises: a) 0.1-1% of a cationic fluorosurfactant, and, b) 2-15% of an alkoxylated alcohol, nonionic surfactant,
Claim 9
Dependent Claim 31 words
Cleaning composition comprising non-fluorinated nonionic surfactant and a level of cationic fluorosurfactant which is effective to lower the surface energy of a surface cleaned with the composition to below 25 mN/m.

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