US5134223A
Expired / Lapsed
US
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Water dispersible or water soluble copolymer containing UV-absorbing monomer
Assignee: Lever Brothers Co
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Filing: 1991-07-17
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Granted: 1992-07-28
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Expires: 2011-07-17
Abstract
Abstract The invention relates to novel water-dispersible or water-soluble copolymers which contain at least one UV-absorbing monomer and one hydrophilic monomer component. These copolymers may be used in fabric care compositions and provide anti-fading and soil release benefits.
Inventors
- 👤 Matthew E. Langer
- 👤 Ferial Khorshahi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:12
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/227; C; C08; C08G; C08G63/00; C08G63/66; C11; C11D; C11D3/00; C11D3/0005; C11D3/001; C11D3/0015; C11D3/0036; C11D3/16; C11D3/37; C11D3/3703; C11D3/3715; C11D3/3719; D06M15/263; D06M15/347; D06M15/37; D06M15/507; D06M15/53; D06M2101/00; D06M2101/02; D06M2101/04; D06M2101/06; D06M2101/16; D06M2101/30; D06M2101/32; D06M2200/00; D06M2200/25
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
18 words
A water-soluble or water-dispersible copolymer containing a UV-absorbing monomer (absorbing in the 280-400 nanometer range) a hydrophilic group.
Claim 2
Dependent Claim
18 words
A water-soluble or water-dispersible copolymer containing a UV-absorbing monomer (absorbing in the 280-400 nanometer range) a hydrophilic group.
Claim 3
Dependent Claim
78 words
A copolymer according to claim 1 wherein the copolymer is a block copolymer having the formula: --(A).sub.n --(B).sub.m --(C).sub.p -- wherein A is a monomer capable of absorbing ultraviolet radiation in the 280-400 monometer range and bears the appropriate bifunctionality for incorporation into the main claim of the polymer; B is a hydrophilic monomer; C is a hydrophobic monomer; n ranges from 1 to 500; m ranges from 5 to 500; and p ranges from 0 to 500.
Claim 4
Dependent Claim
204 words
A copolymer according to claim 1, having the formula ##STR5## wherein: R is a difunctional aryl group or a difunctional straight or branched alkyl chain having 4 to 16 carbons; R 1 is hydrogen, an aliphatic group having 1-20 carbons, an aryl, an alkaryl, a secondary amine, an alkali metal sulfonate, an alkali metal carboxylate, an alkyl ether or a halogen atom; R 2 is a straight or branch chain alkoxy group having 1 to 16 carbons, an aryl or a substituted aryl group; R 3 is a straight or branch chain alkyl group having 1 to 16 carbons; R 4 is a UV-absorbing monomer absorbing in the UVB (280-320 nm) and/or UVA (320-400 nm) range; x is selected such that the hydrophobe is present at 0-49.9% of the polymer; y is selected such that the R 2 group is present at 0-49.9 mol % of the polymer; z is selected such that the (OR 3 ) n group is present at 0 to 49.9 mol % of the polymer wherein n is an integer between 2 and 200; and w is selected such that R 4 is present at 0.05-99.9 mol % polymer; and w & z equals at least 0.05 mol %.
Claim 5
Dependent Claim
14 words
A copolymer according to claim 3, wherein R is a difunctional benzene or naphthalene.
Claim 6
Dependent Claim
23 words
A copolymer according to claim 3, wherein R 1 is hydrogen or a straight chain alkyl group having 1 to 12 carbon atoms.
Claim 7
Dependent Claim
16 words
A copolymer according to claim 3, wherein R 2 is an alkoxy group having 1-4 carbons.
Claim 8
Dependent Claim
15 words
A copolymer according to claim 3 wherein R is ##STR6## and R 1 is hydrogen.
Claim 9
Dependent Claim
15 words
A copolymer according to claim 3 wherein R 2 is --OCH 2 CH 2 --.
Claim 10
Dependent Claim
15 words
A copolymer according to claim 3 wherein R 3 is --CH 2 CH 2 --.
Claim 11
Dependent Claim
24 words
A copolymer according to claim 3 wherein R 4 is a highly conjugated and/or poly(ene)-based derivative and/or aromatic based derivative bearing a difunctional group.
Claim 12
Dependent Claim
11 words
A copolymer according to claim 3 wherein R 4 is ##STR7##
Claim 13
Dependent Claim
47 words
A copolymer according to claim 3 wherein R is ##STR8## and R 1 is H; R 2 =--OCH 2 CH 2 --; R 3 =--CH 2 CH 2 --; and R 4 is a highly conjugated and/or poly(ene)-based derivative and/or aromatic based derivative having a difunctional group.
Claim 14
Dependent Claim
34 words
A copolymer according to claim 3 wherein R is ##STR9## and R 1 is H; R 2 =--OCH 2 CH 2 --; R 3 =--CH 2 CH 2 --; and R 4 = ##STR10##
Claim 15
Dependent Claim
24 words
A copolymer according to claim 3 prepared by polymerizing a mixture of dimethyl terephthalate, ethylene glycol, polyethylene glycol of MW 200-3000 and methyl 4-aminobenzoate.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-07-28 | 1996-01-27 | 1996-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-07-28 | 2000-01-27 | 2000-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-07-28 | 2004-01-27 | 2004-07-28 | $7700.00 | Window Closed / Lapsed |