Anti-fogging agent comprising a fluorinated surfactant mixture and alcohol

Patent metadata

Field	Value
Publication number	US-10683467-B2
Application number	US-201515511534-A
Country	US
Kind code	B2
Filing date	Sep 17, 2015
Priority date	Sep 19, 2014
Publication date	Jun 16, 2020
Grant date	Jun 16, 2020

Abstract

The present invention provides anti-fogging agents and cleaners that provide long-lasting prevention of fogging of glass, plastic, or other hard surfaces. The present invention relates to an anti-fogging agent or cleaner which contains: (A) a fluorinated amphoteric or anionic surfactant; and (B) a fluorinated nonionic surfactant. The present invention also relates to an eyeglass cleaner including a non-woven fabric impregnated with the anti-fogging agent or cleaner.

First claim

The invention claimed is:

1. An anti-fogging agent, comprising:
(A) a fluorinated amphoteric or anionic surfactant;
(B) a fluorinated nonionic surfactant; and
an alcohol,
wherein concentration of the alcohol is 20 to 90 wt %,
wherein combined concentration of the fluorinated amphoteric surfactant (A) and the fluorinated nonionic surfactant (B) is 0.1 to 20 wt %,
wherein the fluorinated amphoteric surfactant (A) is represented by the following formula (1):
R f —X—Y a   (1)

wherein
R f represents a fluoroalkyl or fluoroalkenyl group;
X represents an alkylene or arylene group which may contain a sulfoamide, carbonyl, or oxa group; and
Y a represents a zwitterionic group selected from the group consisting of betaine, sulfobetaine, and amine oxide groups, and

wherein the fluorinated nonionic surfactant is represented by the following formula (3):
R f —X—Y c   (3),

wherein
R f and X are as described in formula (1) and
Y c represents a C2-C20 oxyalkylene group in which a hydrogen atom in the alkylene group may be replaced with a fluorine atom.

2. The anti-fogging agent according to claim 1 ,
wherein the fluorinated amphoteric surfactant (A) is present at a concentration of 0.1 to 20 wt %.

3. The anti-fogging agent according to claim 1 ,
wherein the fluorinated nonionic surfactant (B) is present at a concentration of 0.01 to 20 wt %.

4. The anti-fogging agent according to any one of claim 1 ,
wherein the fluorinated amphoteric surfactant (A) contains a perfluoroalkyl or perfluoroalkenyl group.

5. A cleaner, comprising:
(A) a fluorinated amphoteric or anionic surfactant;
(B) a fluorinated nonionic surfactant; and
an alcohol,
wherein concentration of the alcohol is 20 to 90 wt %,
wherein combined concentration of the fluorinated amphoteric surfactant (A) and the fluorinated nonionic surfactant (B) is 0.1 to 20 wt %,
wherein the fluorinated amphoteric surfactant (A) is represented by the following formula (1):
R f —X—Y a   (1)

wherein
R f represents a fluoroalkyl or fluoroalkenyl group;
X represents an alkylene or arylene group which may contain a sulfoamide, carbonyl, or oxa group; and

Y a represents a zwitterionic group selected from the group consisting of betaine, sulfobetaine, and amine oxide groups, and
wherein the fluorinated nonionic surfactant is represented by the following formula (3):
R f —X—Y c   (3)

wherein
R f and X are as described in formula (1) and
Y c represents a C2-C20 oxyalkylene group in which a hydrogen atom in the alkylene group may be replaced with a fluorine atom.

6. An eyeglass cleaner, comprising
a non-woven fabric impregnated with the anti-fogging agent according to claim 1 .

7. An eyeglass cleaner, comprising
a non-woven fabric impregnated with the cleaner according to claim 5 .

8. An anti-fogging agent, comprising:
(A) a fluorinated anionic surfactant;
(B) a fluorinated nonionic surfactant; and
an alcohol,
wherein concentration of the alcohol is 20 to 90 wt %,
wherein combined concentration of the fluorinated anionic surfactant (A) and the fluorinated nonionic surfactant (B) is 0.1 to 20 wt %,
wherein the fluorinated anionic surfactant (A) is represented by the following formula (2):
R f —X—Y b   (2),

wherein R f and X are as described in formula (1) and
Y b represents an anionic group selected from the group consisting of carboxyl, sulfuric acid, sulfone, and phosphoric acid groups, and

wherein the fluorinated nonionic surfactant is represented by the following formula (3):
R f —X—Y c   (3),

wherein R f and X are as described in formula (1) and
Y c represents a C2-C20 oxyalkylene group in which a hydrogen atom in the alkylene group may be replaced with a fluorine atom.

9. A cleaner, comprising:
(A) a fluorinated anionic surfactant;
(B) a fluorinated nonionic surfactant; and
an alcohol,
wherein concentration of the alcohol is 20 to 90 wt %,
wherein combined concentration of the fluorinated anionic surfactant (A) and the fluorinated nonionic surfactant (B) is 0.1 to 20 wt %,
wherein the fluorinated anionic surfactant (A) is represented by the following formula (2):
R f —X—Y b   (2),

wherein R f and X are as described in formula (1) and
Y b represents an anionic group selected from the group consisting of carboxyl, sulfuric acid, sulfone, and phosphoric acid groups, and

wherein the fluorinated nonionic surfactant is represented by the following formula (3):
R f —X—Y c   (3),

wherein R f and X are as described in formula (1) and
Y c represents a C2-C20 oxyalkylene group in which a hydrogen atom in the alkylene group may be replaced with a fluorine atom.

10. A cleaning method, comprising:
applying a cleaning agent to a hard surface in need thereof, the cleaning agent comprising:
(A) a fluorinated amphoteric or anionic surfactant; and
(B) a fluorinated nonionic surfactant, and
an alcohol,
wherein concentration of the alcohol is 20 to 90 wt %,
wherein combined concentration of the fluorinated amphoteric or anionic surfactant (A) and the fluorinated nonionic surfactant (B) is 0.1 to 20 wt %,
wherein the fluorinated amphoteric surfactant is represented by the following formula (1):
R f —X—Y a   (1),

wherein
R f represents a fluoroalkyl or fluoroalkenyl group;
X represents an alkylene or arylene group which may contain a sulfoamide, carbonyl, or oxa group; and
Y a represents a zwitterionic group selected from the group consisting of betaine, sulfobetaine, and amine oxide groups,

wherein the fluorinated anionic surfactant is represented by the following formula (2):
R f —X—Y b   (2),

wherein
R f and X are as described in formula (1) and
Y b represents an anionic group selected from the group consisting of carboxyl, sulfuric acid, sulfone, and phosphoric acid groups, and
wherein the fluorinated nonionic surfactant (B) is represented by the following formula (3):
R f —X—Y c   (3),

wherein
R f and X are as described in formula (1) and
Y c represents a C2-C20 oxyalkylene group in which a hydrogen atom in the alkylene group may be replaced with a fluorine atom.

11. An anti-fogging method, comprising:
applying an anti-fogging agent to a hard surface susceptible to fogging and
preventing fogging of the hard surface,
the anti-fogging agent comprising:
(A) a fluorinated amphoteric or anionic surfactant;
(B) a fluorinated nonionic surfactant; and
(C) an alcohol,
wherein concentration of the alcohol is 20 to 90 wt %,
wherein the fluorinated amphoteric surfactant (A) is represented by the following formula (1):
R f —X—Y a   (1),

wherein
R f represents a fluoroalkyl or fluoroalkenyl group;
X represents an alkylene or arylene group which may contain a sulfoamide, carbonyl, or oxa group; and
Y a represents a zwitterionic group selected from the group consisting of betaine, sulfobetaine, and amine oxide groups,

wherein the fluorinated anionic surfactant is represented by the following formula (2):
R f —X—Y b   (2),

wherein
R f and X are as described in formula (1) and
Y b represents an anionic group selected from the group consisting of carboxyl, sulfuric acid, sulfone, and phosphoric acid groups, and
wherein the fluorinated nonionic surfactant (B) is represented by the following formula (3):
R f —X—Y c   (3),

wherein
R f and X are as described in formula (1) and
Y c represents a C2-C20 oxyalkylene group in which a hydrogen atom in the alkylene group may be replaced with a fluorine atom.

12. An anti-fogging method, comprising:
applying an anti-fogging agent to a hard surface susceptible to fogg

Assignees

• Kobayashi Pharmaceutical Co Ltd

Inventors

• Gouda Takahisa
• Iwasawa Yoshinao

Classifications

• C09K3/18 Primary

  for application to surfaces to minimize adherence of ice, mist or water thereto (rendering particulate materials free flowing, in general, e.g. making them hydrophobic B01J2/30); Thawing or antifreeze materials for application to surfaces (used in liquids for heat-transfer, heat-exchange or heat-storage or for the production of heat or cold other than by combustion, e.g. radiator liquids, C09K5/00) · CPC title

• C11D1/83

  Mixtures of non-ionic with anionic compounds · CPC title

• C11D1/004

  Surface-active compounds containing F · CPC title

• C11D17/049

  Cleaning or scouring pads; Wipes · CPC title

• C11D3/0078 Primary

  Compositions for cleaning contact lenses, spectacles or lenses · CPC title