GB2308847A - Compositions comprising UV absorbers - Google Patents
Compositions comprising UV absorbers Download PDFInfo
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- GB2308847A GB2308847A GB9526206A GB9526206A GB2308847A GB 2308847 A GB2308847 A GB 2308847A GB 9526206 A GB9526206 A GB 9526206A GB 9526206 A GB9526206 A GB 9526206A GB 2308847 A GB2308847 A GB 2308847A
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- composition according
- ethylene oxide
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/52—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing synthetic macromolecular substances
- D06P1/56—Condensation products or precondensation products prepared with aldehydes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/52—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing synthetic macromolecular substances
- D06P1/56—Condensation products or precondensation products prepared with aldehydes
- D06P1/58—Condensation products or precondensation products prepared with aldehydes together with other synthetic macromolecular substances
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/60—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing polyethers
- D06P1/613—Polyethers without nitrogen
- D06P1/6131—Addition products of hydroxyl groups-containing compounds with oxiranes
- D06P1/6135—Addition products of hydroxyl groups-containing compounds with oxiranes from aromatic alcohols or from phenols, naphthols
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/64—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
- D06P1/642—Compounds containing nitrogen
- D06P1/6426—Heterocyclic compounds
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/02—After-treatment
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/02—After-treatment
- D06P5/04—After-treatment with organic compounds
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/02—After-treatment
- D06P5/04—After-treatment with organic compounds
- D06P5/06—After-treatment with organic compounds containing nitrogen
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/02—After-treatment
- D06P5/04—After-treatment with organic compounds
- D06P5/08—After-treatment with organic compounds macromolecular
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
An aqueous composition comprises 20-45 % (by wt) UV absorber of the 2-(2'-hydroxyphenyl)-benztriazole series having an average particle size of less than 5m, 7-25 % of dispersing agent that is a condensation product of sulphonated tolylether and formaldehyde and 0.5-10 % of non ionic surfactant which is a product of a mixture of fatty alcohols(16-18 C atoms) and ethylene oxide and/or propylene oxide. The compositions may be used in dye baths containing disperse dyes.
Description
IMPROVED COMPOSITIONS OF U.V. ABSORBERS AND NON-IONIC SURFACTANT
The invention relates to compositions of water-insoluble or very sparingly soluble U.V.
absorbers that are stable to storage.
GB Patent 2.187.746 discloses compositions suitable for applying U.V. absorbers of the benztriazole series to a substrate in the form of a dispersion in water.
Improved compositions of this type have now been found according to the present invention which surprisingly demonstrate improved stability and performance compared to those of GB 2.187.746.
The present invention provides a composition comprising, based on weight of the total composition: a) 20 to 45 % of an insoluble or sparingly soluble U.V. absorber of the 2-(2'
hydroxyphenyl)-benztriazole series having an average particle size of less
than 5 llrn; b) 7 to 25 % of a dispersing agent that is a condensation product of sulphonated
tolylether and formaldehyde; c) 0.5 to 10 % of a non-ionic surfactant which is an addition product of 1 mole of fat
alcohols with 16-18 carbon atoms and ethylene oxide or propylene oxide,
or both; d) and demineralized water.
Compositions according to the invention may comprise, based on total weight of said composition, one or more additional components selected from the group consisting of:
a) up to 1.6 % of a solubilizing agent
b) 0.1 to 0.2 % of a buffer
c) 0.1 to 0.3 % of an antifouling agent
d) 0.1 to 1.0 % of an antifoaming agent.
Preferred dispersing agents are those commercially available (for example Baykanol SL), as described in U.S Patent 4, 386,037, especially Example 15. The contents and preferences of this Patent are incorporated herewith by reference. The preferred amount of formaldehyde used per mol of sulphonated tolyether is from 0.2 to 3.0 moles.
Preferred U.V. absorbers of the 2-(2'-hydroxyphenyl)-benztriazole series are those described in Japanese Kokai 56-31084 and Swiss Patent 494,060. The Kokai and the Swiss Patent are incorporated herein by reference.
Preferably the average particle size of the U.V. absorbers used in a composition according to the invention is less than 1 llrn.
Preferably the non-ionic surfactant is an addition product of 1 mole of a mixture of fat alcohols having 16-18 carbon atoms and 10-50 moles of ethylene oxide or an addition product of 1 mole of a mixture of fat alcohols having 16-18 carbon atoms and ethylene oxide or propylene oxide. Most preferred is an addition product of 1 mole of a mixture of fat alcohols having 16-18 carbon atoms and 40 moles of ethylene oxide, commercially available as
EKALIN F (Clariant International Ltd.)
Preferred solubilizing agents are addition products of poly-C,4-alkylene glycols (preferably polypropylene or polyethylene glycol) with propylene oxide and/or ethylene oxide.More preferably the solubilizing agents are the addition products of polypropylene glycol and propylene oxide and ethylene oxide, most preferably having a molecular weight of the polyoxypropylene part of 1500 to 2500 and 40 to 60 % polyoxyethylene units, particularly preferred being "Pluronic" type solubilizing agents.
Preferably the buffer is either sodium hydroxide or phosphoric acid, depending on the acidity of the components.
Preferred antifouling agents are fungicides for example Giv Gard, a commercially available product.
Preferred antifoaming agents are compositions based on silicone oil or alkylenediamides e.g.
of stearic acid, preferably added in amounts of 0.5 to 1.0 % by weight of the total composition.
A preferred composition according to the invention comprises, based on weight of the total composition: a) 20 to 35 % of 2-(2'-hydroxy-3'-tert.butyl-5'-methyl-phenyl)-5-chlorobenztriazole; b) 10 to 25 % of a condensation product of ditolylethersulphonate and formaldehyde; c,) 1 to 5 % of the addition product of 1 mole of a mixture of fat alcohols having
16-18 carbon atoms and 40 moles of ethylene oxide c2) up to 1.6 % of the polymer addition product of polypropylene glycol, propyleneoxide
and ethyleneoxide having a molecular weight of the polyoxypropylene
part of 1700 to 2300; and 40 to 60 % polyoxyethylene units in the
polymer; d) and demineralized water;
Another preferred composition according to the invention comprises, based on weight of the total composition: a) 35 to 45 % of 2-(2'-hydroxy-3 '-tert.butyl-5' -methyl-phenyl)-5-chlorobenztriazole; b) 10 to 14 % of a condensation product of ditolylethersulphonate and formaldehyde; c,) 1 to 5 % of the addition product of 1 mole of a mixture of fat alcohols having
16-18 carbon atoms and 40 moles of ethylene oxide; c2) up to 1.6 % of the addition product of polypropylene glycol, propyleneoxide and
ethyleneoxide having a molecular weight of the polyoxypropylene part
of 1700 to 2300; and 40 to 60 % polyoxyethylene units in the polymer
d) and demineralized water;
Preferably the pH of a composition according to the invention is between 4.5 and 5.8, more preferably 5.0 to 5.5.
Compositions according to the invention are useful for use in dyeing, padding or printing processes preferably in a concentration of 0.5 to 4.0 % based on the dry weight of substrate to be treated.
Compositions according to the invention have excellent stability to storage at room temperature and excellent shear stability under dyeing conditions, evidenced by the fact that no agglomeration of the composition occurs during the dyeing process. The compositions of the invention show good storage stability at high temperatures such as 50çC, remaining stabile for a period of two days.
Compositions according to the invention are also suitable as after-treatment compositions being applied by padding, printing or exhaustion techniques, as a 0.5 to 4.0 % dispersion in water.
Further, according to the invention there is provided a process for dyeing a substrate comprising applying to the substrate, based on the dry weight of the substrate, 0.1 to 6 % of a dye (preferably a disperse dye) and 0.1 to 5% of a composition according to the present invention; preferably in an aqueous medium in a liquor to goods ratio of 10:1 to 60:1.
Substrates dyed with disperse dyes and a U.V. absorber according to the invention show excellent light fastness properties.
The average particle size can be measured by placing a sample on a microscope on which a scale has been superimposed.
The invention will now be illustrated by the following Examples in which all parts and percentages are by weight and all temperatures are in C, unless otherwise indicated.
ExamDle 1
The following are mixed together in a vessel: 25.00 parts of 2-(2 -hydroxy-3 -tert.butyl-5 -methylphenyl)-5-chlorobenztriazole; 18.00 parts of a commercially available condensation product of ditolylether sulphonate and formaldehyde (Baykanol SL); 1.20 parts of commercially available Pluronic P 75 (from BASF/Wyandotte Corp.) [t h e addition product of propylene glycol and propylene oxide followed by the further reaction with ethylene oxide; the product having a molecular weight for the polyoxypropylene part of 2050 (approx.) and having about 50 % polyoxyethylene units in the polymer]; 1.5 parts of a commercially available addition product of 1 mole of a mixture of fat alcohols having 16-18 carbon atoms and 40 moles of ethylene oxide (EKALIN F); 1.00 parts of a commercially available wetting agent (Sandozin NIT fl); 0.20 parts of a commercially available conservation agent (GivGard); 0.05 parts of NaOH; and 53.05 parts of demineralized water.
The mixture is then milled in a bead mill with silicoquarzite beads until the average size of the particles of the U.V. absorber is less than 1 llm, which occurs after about 30 minutes. The resulting dispersion is filtered from the silicoquarzite beads.
The resulting concentrate is stable as a dispersion for 2 days at a temperature of about 50"C.
ExamPle 2
Example 1 is repeated using: 40.00 parts of 2-(2' -hydroxy-3 -tert.butyl-5-methylphenyl)-Schiorobenztriazole; 10.14 parts of a commercially available condensation product of ditolylether sulphmate and formaldehyde; 1.16 parts of commercially available Pluronic P 75 (from BASF/Wyandotte Corp.) [the addition product of propylene glycol and propylene oxide followed by the further reaction with ethylene oxide; the product having a molecular weight for the polyoxypropylene part of 2050 (approx.) and having about 50 % polyoxyethylene units in the polymer]; 2.4 parts of a commercially available product of 1 mole of a mixture of fat alcohols having 16-18 carbon atoms and 40 moles of ethylene oxide; 1.01 parts of a commercially available wetting agent (Sandozin NIT fl); 0.28 parts of a commercially available conservation agent (GivGard); 0.07 parts of NaOH; and 44.94 parts of demineralized water.
Example 3
Example 1 is repeated omitting to add the commercially available addition product of 1 mole of a mixture of fat alcohols having 16 to 18 carbon atoms and 40 moles of ethylene oxide (EKALIN F), and using 54.55 parts demineralized water.
Example 4
Example 2 is repeated omitting to add the commercially available addition product of 1 mole of a mixture of fat alcohols having 16 to 18 carbon atoms and 40 moles of ethylene oxide (EKALIN F), and using 47.34 parts demineralized water.
Application Example (Example 5)
A dyebath is made up of the following: 1.5 parts of C.I. Disperse Red 74; 1.5 parts of the dispersion of Example 1; and 197.0 parts of demineralized water.
The pH is brought to 5.0 by the addition of ammonium sulphate/formic acid in a ratio of 10:1.
This bath is warmed to 60' in a dyeing autoclave and 100 parts of a polyester fabric (of sufficient quality for use in automobile upholstery) is then added, the autoclave is closed and the circulating bath is heated to 135 . Dyeing is carried out at 135' for 20 minutes after which the bath is cooled to 80e and the dyed substrate is removed from the bath. It is then washed, reductively cleared, washed again and dried. The light fastness of the dyed fabric is substantially better than that dyed without the benztriazole present.
Instead of using 1.5 parts of the dispersion of Example 1, Application Example 5 can be repeated using 1.0 parts of the dispersion of Example 2.
ApPlication Example (ExamPles 6 - 9) Application Example 6.
Using a fine polyester yarn (Dtex 167f), a small cross-wound bobbin of 40 g is produced by means of a precision winder (density ca. 0.4).
This bobbin is dyed in a circulation dyeing apparatus (e.g. Colorstar by Zeltex AG, CH) under rigorous dyeing conditions.
Goods-to-liquor ratio: 1:10 with water of 11" d (German Hardness).
Dyestuff combination:
0.19 % C. I Disperse Yellow 86 0.185% C. I Disperse Yellow 42 0.122% C. I Disperse Red 91
0.49 % C. I Disperse Blue 77
Dispersion of example 1, 3.5 %.
First of all, the dye liquor is poured over the bobbin, and thereafter a static pressure of 2 bar is applied. Since, at the start of dyeing, a flow rate of 0.6 1/mien is set, under these conditions, there is initially a differential pressure (internal/external) of ca. 0.05 - 0.1 bar.
The dye liquor is heated to 130' at a rate of 2'/mien, and after dyeing for 30 minutes at 130 , cooling is effected to 80e at a rate of 5'/mien. During the entire dyeing procedure, the flow rate, the differential pressure and the temperature are recorded by a three-channel recording instrument.
The dispersion is evaluated by the following parameters:
- maximum pressure difference (intemal/extemal) (aP) bar
- minimum flow rate (F, Ilmin) - levelness of the dyeing (internal/external) (E)
- presence of deposits inside the bobbin (A) Asplication Example 7
Application Example 6 is repeated using 2.18 % of the dispersion of example 2, instead of 3.5 % of the dispersion of example 1.
Asplication Example 8
Application Example 6 is repeated using 2.18 % of the dispersion of example 3, instead of 3.5 % of the dispersion of example 1.
Application Example 9
Application Example 6 is repeated using 2.18 % of the dispersion of example 4, instead of 3.5 % of the dispersion of example 1.
The results obtained from application examples 6-9 may be seen from the following Table 1:
Table 1.
Example Dispersion AP Finin E A No.
6 Example 1 0.1 0.6 very good no 7 Example 3 0.8 0.05 bad yes 8 Example 2 0.1 0.6 very good no 9 Example 4 0.75 0.05 bad yes As can be seen from the table, the presence in the dispersion of a sulphonated tolylether / formaldehyde condensate and a commercially available product consisting of an addition product of 1 mole of a mixture of fat alcohols with 16-18 carbon atoms and 40 moles of ethylene oxide (Application Examples 6+7), causes a considerable improvement over dispersions which contain only the sulphonated tolylether/formaldehyde condensate (Application Examples 8 and 9), that is no addition product.
Claims (9)
1. A composition comprising, based on total weight of said composition:
a) 20 to 45 % of an insoluble or sparingly soluble U.V. absorber of the 2-(2'
hydroxyphenyl)-benztriazole series having an average particle size of less than
5 llm; b) 7 to 25 % of a dispersing agent that is a condensation product of sulphonated
tolylether and formaldehyde;
c) 0.5 to 10 % of a non-ionic surfactant which is an addition product of a
mixture of fat alcohols with 16-18 carbon atoms and ethylene oxide or
propylene oxide or both ethylene oxide and propylene oxide; and
d) water.
2. A composition according to Claim 1, wherein the non-ionic surfactant is an addition
product 1 mole of a mixture of fat alcohols with 16-18 carbon atoms and 40 moles
of ethylene oxide.
3. A composition according to either Claim 1 or Claim 2 comprising, based on total
weight of said composition, one or more additional components selected from the
group consisting of:
e) up to 1.5 % of a solubilizing agent,
f) 0.1 to 0.2 % of a buffer
g) 0.1 to 0.3 % of an antifouling agent, and
h) 0.1 to 1.0 % of an antifoaming agent.
4. A composition according to any one of the preceding claims, wherein the particle
size of the U.V. absorber is less than 1 pm.
5. A composition according to any one of the preceding claims comprising, based on
total weight of said composition:
a) 20 to 35 % of 2-(2'-hydroxy-3'-tert.butyl-5'-methyl-phenyl)-5-chlorobenz- triazole;
b) 10 to 25 % of a condensation product of ditolylethersulphonate and
formaldehyde;
c,) 1 to 5 % of the addition product of 1 mole of a mixture of fat alcohols with
16-18 carbon atoms and 40 moles ethylene oxide;
c2) up to 1.6 % of the polymer addition product of polypropylene glycol,
propyleneoxide and ethyleneoxide having a molecular weight of the
polyoxypropylene part of 1700 to 2300; and 40 to 60 % polyoxyethylene units
in the polymer; and
d) demineralized water.
6. A composition according to any one of Claims 1 to 4 comprising, based on total
weight of said composition:
a) 35 to 45 % of 2-(2'-hydroxy-3'-tert.butyl-5'-methyl-phenyl)-5-chlorobenz
triazole;
b) 10 to 14 % of a condensation product of ditolylethersulphonate and formal
dehyde; cl) 1 to 6 % of the addition product of 1 mole of a mixture of fat alcohols with
16-18 carbon atoms and 40 moles ethylene oxide;
c2) up to 1.6 % of the polymer addition product of polypropylene glycol,
propyleneoxide and ethyleneoxide having a molecular weight of the
polyoxypropylene part of 1700 to 2300; and 40 to 60 % polyoxyethylene units
in the polymer; and
d) demineralized water.
7. A process for dyeing a substrate comprising applying to the substrate, based on the
dry weight of the substrate, 0.1 to 6 % of a dye and 0.1 to 5 % of a composition
according to any one of claims 1 to 6.
8. A substrate to which a composition according to any one of Claims 1 to 6 has been
applied.
9. Use of a composition according to any one of claims 1 to 6 in combination with a
dyestuff for dyeing a textile.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9526206A GB2308847A (en) | 1995-12-21 | 1995-12-21 | Compositions comprising UV absorbers |
| BR9609728A BR9609728A (en) | 1995-07-12 | 1996-07-11 | Ultraviolet radiation absorption compositions |
| AT96925729T ATE201244T1 (en) | 1995-07-12 | 1996-07-11 | UV-ABSORBING COMPOSITIONS |
| DE69612853T DE69612853T2 (en) | 1995-07-12 | 1996-07-11 | UV-ABSORBING COMPOSITIONS |
| EP96925729A EP0842319B1 (en) | 1995-07-12 | 1996-07-11 | U.v. absorber compositions |
| JP9505507A JPH11508935A (en) | 1995-07-12 | 1996-07-11 | UV absorber composition |
| DK96925729T DK0842319T3 (en) | 1995-07-12 | 1996-07-11 | UV-absorbing compositions |
| ES96925729T ES2158328T3 (en) | 1995-07-12 | 1996-07-11 | UV ABSORBENT COMPOSITIONS. |
| PCT/EP1996/003050 WO1997003242A1 (en) | 1995-07-12 | 1996-07-11 | U.v. absorber compositions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9526206A GB2308847A (en) | 1995-12-21 | 1995-12-21 | Compositions comprising UV absorbers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9526206D0 GB9526206D0 (en) | 1996-02-21 |
| GB2308847A true GB2308847A (en) | 1997-07-09 |
Family
ID=10785846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9526206A Withdrawn GB2308847A (en) | 1995-07-12 | 1995-12-21 | Compositions comprising UV absorbers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2308847A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2187746A (en) * | 1986-03-15 | 1987-09-16 | Sandoz Ltd | Hydroxyphenyl benzotriazole UV light absorber aqueous dispersions and their use in dyeing processes |
-
1995
- 1995-12-21 GB GB9526206A patent/GB2308847A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2187746A (en) * | 1986-03-15 | 1987-09-16 | Sandoz Ltd | Hydroxyphenyl benzotriazole UV light absorber aqueous dispersions and their use in dyeing processes |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9526206D0 (en) | 1996-02-21 |
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| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |