US4557730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solutions of U.V. absorbers useful for improving the light fastness of dyeings on polyester
Assignee: Sandoz AG
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Filing: 1984-05-17
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Granted: 1985-12-10
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Expires: 2004-05-17
Abstract
Abstract The invention provides a solution of one or more U.V. absorbers selected from resorcinol monobenzoate, phenyl salicylate and a benzophenone; and an emulsifier in an organic solvent system. The solutions of the invention are useful for providing level dyeings of polyester material particularly for use in the automotive industry.
Inventors
- 👤 Brian Bennett
- 👤 Donald K. Clough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:44
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/64; D06P1/651; D06P1/65106; D06P1/65112; D06P1/642; D06P1/6421; D06P1/65125; D06P3/00; D06P3/34; D06P3/52; D06P3/54; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/922
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
82 words
A solution comprising one or more U.V. absorbers selected from resorcinol monobenzoate, phenyl salicylate and compounds of formula I ##STR2## in which R 1 is selected from OH, halogen, C 1-4 alkyl, CN, C 1-4 alkoxy and hydrogen; each R 2 , independently, is selected from C 1-4 alkoxy, CN, halogen, hydrogen, C 1-4 alkyl and OH; and an emulsifier in an organic solvent system for said U.V. absorber and emulsifier comprising a mixture of a hydrophilic solvent and a hydrophobic solvent.
Claim 2
Dependent Claim
82 words
A solution comprising one or more U.V. absorbers selected from resorcinol monobenzoate, phenyl salicylate and compounds of formula I ##STR2## in which R 1 is selected from OH, halogen, C 1-4 alkyl, CN, C 1-4 alkoxy and hydrogen; each R 2 , independently, is selected from C 1-4 alkoxy, CN, halogen, hydrogen, C 1-4 alkyl and OH; and an emulsifier in an organic solvent system for said U.V. absorber and emulsifier comprising a mixture of a hydrophilic solvent and a hydrophobic solvent.
Claim 3
Dependent Claim
28 words
A solution according to claim 1, in which the one or more U.V. absorbers are selected from resorcinol monobenzoate, 4-chloro-2,2',4'-trihydroxybenzophenone, 2,2',4-trihydroxybenzophenone, 2,4-dihydroxy-4'-methoxybenzophenone, 2,2',4,4'-tetrahydroxybenzophenone, 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone and phenyl salicylate.
Claim 4
Dependent Claim
22 words
A solution according to claim 1 in which the U.V. absorber is phenyl salicylate or a mixture of phenyl salicylate and 2-hydroxy-4-methoxybenzophenone.
Claim 5
Dependent Claim
75 words
A solution according to claim 1 in which the emulsifier is a C 4-12 alkyl phenol ethoxylated with 5 to 20 moles ethylene oxide; a C 4-12 -dialkyl phenol ethoxylated with 5 to 20 moles ethylene oxide; a C 8-18 alcohol ethoxylated with 5 to 30 moles ethylene oxide; a C 12-18 fatty acid ethoxylated with 5 to 20 moles of ethylene oxide and Castor oil ethyoxylated with 5 to 50 moles of ethylene oxide.
Claim 6
Dependent Claim
47 words
A solution according to claim 4 in which the solvent is a mixture of an ester of a fatty acid or an aromatic ester or an aromatic hydrocarbon and a pyrrolidone compound or a mixture of a chlorinated paraffin, a diethylene glycol dibenzoate and a pyrrolidone compound.
Claim 7
Dependent Claim
18 words
A process for treating a polyester fabric comprising applying to the fabric a solution according to claim 1.
Claim 8
Dependent Claim
21 words
A dyed polyester fabric to which a solution according to claim 1 and one or more disperse dyestuffs have been applied.
Claim 9
Dependent Claim
34 words
A composition according to claim 1 wherein, in formula (I), any C 1-4 alkyl is methyl, ethyl or propyl, any C 1-4 alkoxy is methoxy or ethoxy, and any halogen is chlorine or bromine.
Claim 10
Dependent Claim
20 words
A composition according to claim 1 wherein, in formula (I), at least one R 2 is OH, methoxy or hydrogen.
Claim 11
Dependent Claim
22 words
A composition according to claim 1 wherein, in formula (I), R 1 is in the 4-position and is chloro, methoxy or OH.
Claim 12
Dependent Claim
22 words
A composition according to claim 8 wherein, in formula (I), R 1 is in the 4-position and is chloro, methoxy or OH.
Claim 13
Dependent Claim
22 words
A composition according to claim 9 wherein, in formula (I), R 1 is in the 4-position and is chloro, methoxy or OH.
Claim 14
Dependent Claim
78 words
A composition according to claim 2 in which the emulsifier is a C 4-12 alkyl phenol ethoxylated with 5 to 20 moles of ethylene oxide; a C 4-12 dialkyl phenol ethoxylated with 5 to 20 moles of ethylene oxide; a C 8-18 alcohol ethoxylated with 5 to 30 moles of ethylene oxide; a C 12-18 fatty acid ethoxylated with 5 to 20 moles of ethylene oxide or Castor oil ethoxylated with 5 to 50 moles of ethylene oxide.
Claim 15
Dependent Claim
78 words
A composition according to claim 12 in which the emulsifier is a C 4-12 alkyl phenol ethoxylated with 5 to 20 moles of ethylene oxide; a C 4-12 dialkyl phenol ethoxylated with 5 to 20 moles of ethylene oxide; a C 8-18 alcohol ethoxylated with 5 to 30 moles of ethylene oxide; a C 12-18 fatty acid ethoxylated with 5 to 20 moles of ethylene oxide or Castor oil ethoxylated with 5 to 50 moles of ethylene oxide.
Claim 16
Dependent Claim
22 words
A composition according to claim 13 in which the emulsifier is nonyl phenol ethoxylated with 5 to 20 moles of ethylene oxide.
Claim 17
Dependent Claim
47 words
A composition according to claim 13 in which the solvent is a mixture of an ester of a fatty acid or an aromatic ester or an aromatic hydrocarbon and a pyrolidone compound or a mixture of a chlorinated paraffin, a diethylene glycol dibenzoate and a pyrolidone compound.
Claim 18
Dependent Claim
47 words
A composition according to claim 14 in which the solvent is a mixture of an ester of a fatty acid or an aromatic ester or an aromatic hydrocarbon and a pyrrolidone compound or a mixture of a chlorinated paraffin, a diethylene glycol dibenzoate and a pyrrolidone compound.
Claim 19
Dependent Claim
27 words
A composition according to claim 15 wherein the solvent system is a mixture of trimethylbenzene and N-methyl pyrrolidone or a mixture of metil oil and N-methyl pyrrolidone.
Claim 20
Dependent Claim
23 words
A composition according to claim 1 comprising, by weight, 20 to 50% U.V. absorber, 10 to 30% emulsifier and 10 to 60% solvent.
Claim 21
Dependent Claim
23 words
A composition according to claim 16 comprising, by weight, 20 to 50% U.V. absorber, 10 to 30% emulsifier and 10 to 60% solvent.
Claim 22
Dependent Claim
23 words
A composition according to claim 18 comprising, by weight, 20 to 50% U.V. absorber, 10 to 30% emulsifier and 10 to 60% solvent.
Claim 23
Dependent Claim
23 words
A process according to claim 6 wherein the solution is applied to the fabric from a dyebath containing one or more disperse dyestuffs.
Claim 24
Dependent Claim
38 words
A process for dyeing polyester fabric which comprises treating said fabric in a dyebath containing one or more disperse dyestuffs, and 0.1 to 10%, based on the weight of the fabric, of a composition according to claim 16.
Claim 25
Dependent Claim
38 words
A process for dyeing polyester fabric which comprises treating said fabric in a dyebath containing one or more disperse dyestuffs and 0.1 to 10%, based on the weight of the fabric of a composition according to claim 21.
Claim 26
Dependent Claim
21 words
A solution according to claim 4 wherein the U.V. absorber is phenyl salicylate or a mixture of phenyl salicylate and 2-hydroxy-4-methoxybenzophenone.
Claim 27
Dependent Claim
57 words
A process for dyeing polyester fabric which comprises treating said fabric in a dyebath containing one or more disperse dyestuffs and 0.1 to 10%, base on the weight of the fabric, of a solution according to claim 4, said solution comprising, by weight, 20 to 50% U.V. absorber, 10 to 30% emulsifier and 10 to 60% solvent.
Claim 28
Dependent Claim
43 words
A process according to claim 26 wherein the solvent system is a mixture of trimethylbenzene and N-methyl pyrrolidone in a weight ratio of 2:3 to 5:1 or a mixture of metil oil and N-methyl pyrrolidone in a weight ratio of 2:1 to 4:1.
Claim 29
Dependent Claim
21 words
A process according to claim 26 wherein the U.V. absorber is phenyl salicylate or a mixture of phenyl salicylate and 2-hydroxy-4-methoxybenzophenone.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-12-09 | 1989-06-10 | 1989-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-09 | 1993-06-10 | 1993-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-09 | 1997-06-10 | 1997-12-10 | $7700.00 | Window Closed / Lapsed |