GB2203162A - Anti-static compositions - Google Patents
Anti-static compositions Download PDFInfo
- Publication number
- GB2203162A GB2203162A GB08807916A GB8807916A GB2203162A GB 2203162 A GB2203162 A GB 2203162A GB 08807916 A GB08807916 A GB 08807916A GB 8807916 A GB8807916 A GB 8807916A GB 2203162 A GB2203162 A GB 2203162A
- Authority
- GB
- United Kingdom
- Prior art keywords
- static
- composition
- fatty acid
- acid amide
- oil fatty
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/16—Anti-static materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/20—Carboxylic acid amides
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Detergent Compositions (AREA)
Abstract
A water-based anti-static composition is described in which an aqueous solution of a water-soluble anti-static agent, suitably a condensation product of an alkyl phenol and ethylene oxide, is stabilised in a substantially homogeneous solution by means of an effective amount of a coconut oil fatty acid amide.
Description
ANTI-STATIC COMPOSITIONS
This invention relates to water-based anti-static compositions.
The use of non-ionic water-soluble anti-static agents such as alkyl phenol/ethylene oxide condensates in aqueous compositions is known, particularly preferred agents being for example the macrogol ethers. Waterbased compositions offer potentially significant safety and other advantages over organic (e.g. alcohol) based solvent systems. The range of application of such water-based compositions has, however, hitherto been limited by the difficulties encountered in obtaining a homogeneous liquid composition, as there can be tendency to form a paste or gel.
According to the present invention, there is provided an anti-static composition which comprises an aqueous solution containing a non-ionic water-soluble antistatic agent, suitably a condensation product of an alkyl phenol and ethylene oxide, and further including a coconut oil fatty acid amide in an amount effective to stabilise the composition as a substantially homogeneous liquid.
The anti-static agent may for example be a macrogol ether such as nonyl phenyl ethoxylate (synthetic-9mol). Preferably, the composition will also contain a co-solvent, e.g. a glycol ether such as butyl glycol ether, dipropylene glycol methyl ether or propylene glycol monoethyl ether, and an antiseptic, advantageously with anti-static properties, such as a conventional quaternary ammonium compound, e.g. benzyl diammonium chloride or an optionally-substituted-benzyl quaternary of a tri-alkyl-amine.
The anti-static agent and the coconut oil fatty acid amide may suitably be present in relative proportion by weight from about 0.6:1 to about 1.4:1 amide:antistatic (preferably about 0.8:1). The anti-static agent typically comprises no more than about 15% by weight of the composition, and the coconut oil fatty acid amide typically no more than about 10% by weight.
The anti-static composition of the present invention may conveniently be provided as a concentrate to reduce bulk, the concentrate being diluted before use. The concentrate will usually contain from about 2% to about 15% by weight of the anti-static agent, and from about 2% to about 10% by weight (most preferably about 4%) of the non-ionic coconut oil fatty acid amide, these ingredients being present in the desired proportion relative to each other, the remainder of the concentrate comprising water and other optional ingredients.
If an antiseptic agent is included in the composition then it will usually constitute from about 0.5% to about 2.5% by weight of the concentrate. If a Co- solvent is present it may suitably constitute from about 5 to about 15% by weight of the concentrate.
The concentrate will usually contain from about 60% to about 96% by weight of water, more typically from about 75% to about 90%, for example about 80% to 85 or 87%.
The concentrate is suitably somewhat alkaline in pH.
Anti-static compositions in accordance with the present invention have been used satisfactorily, at suitable dilution levels, on visible display units; televisions; office equipment; telecommunications equipment, including telex; and photographic equipment, including cameras, lenses and films. In addition, the composition of the present invention can be used for cleaning a wide range of surfaces and materials (e.g.
glass surfaces such as spectacle lenses and mirrors; metal surfaces such as car bodies or precious and semiprecious metals such as gold or silver; plastics surfaces such as plastics spectacle lenses, disc recordings and photographic negatives; flooring materials, e.g. carpets; and furniture), and imparting to such surfaces and materials anti-static properties.
Anti-static compositions according to the invention can be applied by means of a cloth or under pressure, for example as an aerosol.
As mentioned above, the concentrate is typically diluted with water before use. Up to thirty, e.g.
about four, about ten or about twenty, parts of water for each part of the concentrate may typically be used.
The higher dilutions may for example be required for those applications, e.g. treating glass surfaces, where high optical clarity is required.
The concentrate may suitably be prepared by adding the coconut oil fatty acid amide in desired amounts to a sufficient volume of water, with warming (e.g. to about 270 C) and optionally stirring (e.g. for about 60 minutes) to achieve a liquid to which the remaining constituents are then added, suitably before allowing the concentrate to cool to room temperature.
The use of the coconut oil fatty acid amide in the present invention, to stabilise the aqueous anti-static compositions in substantially homogeneous form, enables the use of toxic, inflammable or corrosive co-solvents and solvents to be avoided or reduced. The use of solvent systems which evaporate to leave deposited layers of chemicals which are difficult to remove subsequently from the treated surface may also be avoided or reduced using the compositions of the present invention.
The invention will be further illustrated by the following non-limiting examples:
Example 1
Concentrate A
A stable homogeneous concentrate was prepared having approximate composition as follows (percentages expressed by weight):
4% Coconut diethanolamide
5% Nonyl phenyl ethoxylate
(synthetic-9-mol)
0.9% Quaternary ammonium chloride
8% Co-solvent selected from butyl
glycol ether, dipropylene
glycol methyl ether and
propylene glycol mono ethyl
ether
water ad 100%
Concentrate B
A range of stable homogeneous concentrates was prepared having approximate compositions in the following ranges (percentages expressed by weight)::
3-4% Coconut diethanolamide
4-5% Nonyl phenyl ethoxylate
(synthetic-9-mol)
0.8 - 0.9% Quaternary ammonium chloride
7-8% Co-solvent selected from butyl
glycol ether, dipropylene
glycol methl ether and
propylene glycol mono ethyl
ether
water ad 100%
Concentrate C
A further stable homogeneous concentrate was prepared having approximate composition as follows (percentages expressed by weight)::
4% Coconut diethanolamide
5% Nonyl phenyl ethoxylate
(synthetic-9-mol)
0.9% t Quaternary ammonium chloride
13% Dipropylene glycol methyl
ether co-solvent
water ad 100%
Example 2
Anti-static compositions
Concentrates A and B were diluted at a ratio of 10 parts water to one part concentrate to provide stable homogeneous solutions which can each be used as a film wash in the final stage of photographic negative processing, as a vehicle wash prior to painting, or as a carpet treatment preparation to remove static electricity from carpets.
Example 3
Anti-static compositions
Concentrates A and B were diluted at a ratio of 4 parts water to one part concentrate to provide stable homogeneous solutions which can each be used as an anti-static wash for office equipment such as VDU's, casings and keyboards, for records, televisions, telephones or spectacles, or for jewellery such as gold and silver items. The compositions may alternatively be provided impregnated in an absorbent material such as cloth or tissue for use as a wipe.
Example 4
Anti-static compositions
Concentrate C was diluted at a ratio of 19 parts water to one part concentrate to provide an anti-static wash for glass surfaces such as lenses and mirrors.
Claims (14)
1. An anti-static composition which comprises an aqueous solution containing a non-ionic water-soluble anti-static agent and further including a coconut oil fatty acid amide in an amount effective to stabilise the composition as a substantially homogeneous liquid.
2. An anti-static composition as claimed in Claim 1 wherein the anti-static agent and the coconut oil fatty acid amide are present in relative proportion by weight from 0.6:1 to 1.4:1 amide:anti-static.
3. An anti-static composition as claimed in Claim 1 or Claim 2, wherein the coconut oil fatty acid amide is present in an amount of up to 10% by weight.
4. An anti-static composition as claimed in Claim 3 wherein the coconut oil fatty acid amide is present in an amount of about 4% by weight.
5. An anti-static composition as claimed in any one of Claims 1 to 4 wherein the anti-static agent is or comprises a condensation product of an alkyl phenol and ethylene oxide.
6. An anti-static composition as claimed in any one of the preceding Claims, wherein the anti-static agent is or comprises nonyl phenyl ethoxylate (synthetic-9mol).
7. An anti-static composition as claimed in Claim 5 or Claim 6 wherein the anti-static agent is present in an amount of up to 15% by weight.
8. An anti-static composition as claimed in any one of the preceding Claims, wherein the coconut oil fatty acid amide is or comprises coconut diethanolamide.
9. An anti-static composition as claimed in any one of the preceding Claims further including a co-solvent.
10. An anti-static composition as claimed in any one of the preceding Claims further including an antiseptic compound.
11. An anti-static composition as claimed in Claim 10 wherein the antiseptic compound is a quaternary ammonium compound.
12. A method of imparting anti-static properties to a surface which comprises applying to said surface a composition as claimed in any one of the preceding
Claims.
13. A method for preparing an anti-static composition as claimed in Claim 1, which comprises adding the coconut oil fatty acid amide in desired amounts to a sufficient volume of water with warming and optionally stirring to achieve a liquid to which the remaining constituent(s) is/are then added.
14. An anti-static composition, substantially as described in the foregoing examples.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB878707772A GB8707772D0 (en) | 1987-04-01 | 1987-04-01 | Anti-static compositions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8807916D0 GB8807916D0 (en) | 1988-05-05 |
| GB2203162A true GB2203162A (en) | 1988-10-12 |
Family
ID=10615039
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB878707772A Pending GB8707772D0 (en) | 1987-04-01 | 1987-04-01 | Anti-static compositions |
| GB08807916A Withdrawn GB2203162A (en) | 1987-04-01 | 1988-04-05 | Anti-static compositions |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB878707772A Pending GB8707772D0 (en) | 1987-04-01 | 1987-04-01 | Anti-static compositions |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB8707772D0 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0550208A1 (en) * | 1991-12-31 | 1993-07-07 | General Electric Company | Polyphenylene ether/polyester compositions |
| WO1998022562A1 (en) * | 1996-11-16 | 1998-05-28 | Reckitt & Colman Products Limited | Hard surface cleaner |
| DE19830176A1 (en) * | 1998-07-06 | 2000-01-13 | Worwag Lack Farbenfabrik Gmbh | Temporary protection of plastic objects against electrostatic charging |
| WO2003018676A1 (en) * | 2001-08-25 | 2003-03-06 | Chemetall Gmbh | Method for anti-statically coating the surfaces of plastic moulded parts or plastic or paint coatings |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115490918B (en) * | 2022-09-14 | 2024-03-22 | 聚力防静电科技(广东)有限公司 | Liquid antistatic agent containing inorganic salt ions for PVC |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1346158A (en) * | 1971-02-16 | 1974-02-06 | Ciba Geigy Ag | Process for the permanent finishing of fibre materials |
| GB1461994A (en) * | 1974-07-05 | 1977-01-19 | Bayer Ag | Liquid composition of fatty acid/alkanolamine condensates |
-
1987
- 1987-04-01 GB GB878707772A patent/GB8707772D0/en active Pending
-
1988
- 1988-04-05 GB GB08807916A patent/GB2203162A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1346158A (en) * | 1971-02-16 | 1974-02-06 | Ciba Geigy Ag | Process for the permanent finishing of fibre materials |
| GB1461994A (en) * | 1974-07-05 | 1977-01-19 | Bayer Ag | Liquid composition of fatty acid/alkanolamine condensates |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0550208A1 (en) * | 1991-12-31 | 1993-07-07 | General Electric Company | Polyphenylene ether/polyester compositions |
| WO1998022562A1 (en) * | 1996-11-16 | 1998-05-28 | Reckitt & Colman Products Limited | Hard surface cleaner |
| AU718704B2 (en) * | 1996-11-16 | 2000-04-20 | Reckitt Benckiser (Uk) Limited | Hard surface cleaner |
| GB2319256B (en) * | 1996-11-16 | 2000-09-27 | Reckitt & Colmann Prod Ltd | Light duty cleaner |
| US6130197A (en) * | 1996-11-16 | 2000-10-10 | Reckitt & Colman Products Limited | Hard surface cleaner |
| DE19830176A1 (en) * | 1998-07-06 | 2000-01-13 | Worwag Lack Farbenfabrik Gmbh | Temporary protection of plastic objects against electrostatic charging |
| WO2003018676A1 (en) * | 2001-08-25 | 2003-03-06 | Chemetall Gmbh | Method for anti-statically coating the surfaces of plastic moulded parts or plastic or paint coatings |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8807916D0 (en) | 1988-05-05 |
| GB8707772D0 (en) | 1987-05-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |