# US 5,705,474 A · Rinse added fabric softener compositions containing sunscreens for sun-fade protection for fabrics

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- Number: US 5,705,474 A
- Document ID: US5705474A
- Status: Granted
- Kind: A
- Application number: 08/596,778
- Filed: 1996-02-05
- Granted: 1998-01-06
- Earliest claimed: 1994-07-26
- Assignees: The Procter & Gamble Company
- Inventors: John Cort Severns; Mark Robert Sivik; Ellen Schmidt Baker; Frederick Anthony Hartman
- Web page: https://patentgrep.com/patent/US5705474A

## CPC

- C11D 3/2068: {Ethers}
- C11D 1/528: {Carboxylic amides (R1-CO-NR2R3), where at least one of the chains R1, R2 or R3 is interrupted by a functional group, e.g. a -NH-, -NR-, -CO-, or -CON- group (ethers C11D1/526)}
- C11D 1/58: Heterocyclic compounds
- C11D 1/62: Quaternary ammonium compounds
- C11D 3/0015: {liquid}
- C11D 3/2093: {Esters; Carbonates}
- C11D 3/26: containing nitrogen {(C11D3/162, C11D3/164, C11D3/166, C11D3/168 take precedence)}
- C11D 3/28: Heterocyclic compounds containing nitrogen in the ring
- C11D 3/33: Amino carboxylic acids
- C11D 3/42: Brightening agents {; Blueing agents}
- C11D: DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL

## Abstract

The present invention relates to fabric care compositions to reduce the fading of fabrics from sunlight, comprising; (A) from about 1% to about 25% by weight of the composition, of a non-fabric staining, light stable sunscreen compound preferably containing at least one C.sub.8 -C.sub.22 hydrocarbon fatty organic moiety; (B) from 3% to about 50% by weight of a fabric softening compound; and (C) from about 25% to about 95% by weight of a carrier material; wherein the sunscreen compound absorbs light at a wavelength of from about 290 nm to about 450 nm; wherein the sunscreen compound is a solid material having a melting point of from about 25.degree. C. to about 90.degree. C. or a viscous liquid at a temperature of less than about 40.degree. C.

## Claims

### Claim 1

A rinse-added fabric softener composition comprising:
A. from about 1% to about 25%, by weight of the composition, of a non-fabric staining, light stable sunscreen compound having the formula: ##STR13## wherein R.sup.7 is a hydrogen, hydroxy group, or a C.sub.1 to C.sub.20 alkyl group;
R.sup.8 is a hydrogen, hydroxy group, or a C.sub.1 to C.sub.22 alkyl group, which can be an ester, amide, or ether interrupted group having a C.sub.1 to C.sub.4 alkylene group;
R.sup.9 is a hydrogen, hydroxy group, or a C.sub.1 to C.sub.22 alkyl group, which can be an ester, amide, or ether interrupted group having a C.sub.1 to C.sub.4 alkylene group; and
fatty acid derivatives thereof; and
B. from about 3% to 50% by weight of the composition of a fabric softening composition selected from the group consisting of:
1. compounds having the formula: ##STR14## wherein each Y' is --O--(O)C-- or --C(O)--O--;
p is 2 or 3;
each q.sup.2 is 1 to 5;
each R.sup.7 substituent is selected from short chain C.sub.1 -C.sub.6 alkyl or hydroxyalkyl group, benzyl group and mixtures thereof;
each R.sup.8 is a long chain C.sub.11 -C.sub.21 hydrocarbyl, or substituted hydrocarbyl substituent;
and counterion, X.sup.-, is any softener-compatible anion;
2.

### Claim 2

compounds having the formula: ##STR15## wherein each Y', R.sup.7, R.sup.8, and X' have the same meanings as before for formula (1);
3.

### Claim 3

compounds having the formula: ##STR16## wherein each R.sup.9 is a C.sub.8 to C.sub.20 alkyl or alkenyl group; R.sup.10 is a hydrogen methyl, ethyl, or (C.sub.r H.sub.2r O).sub.s H, wherein r is from 1 to 5, wherein s is from 1 to 5; and X.sup.- has the same meaning as before for formula (1);
4.

### Claim 4

compounds having the formula: ##STR17## wherein each R.sup.11 and R.sup.12 is a C.sub.8 -C.sub.24 alkyl or alkenyl group; each R.sup.13 and R.sup.14 is a C.sub.1 -C.sub.6 alkyl group; X.sup.- has the same meaning as before for formula (1);
5.

### Claim 5

compounds having the formula: ##STR18## wherein each Y.sup.2 is either: --N(R.sup.16)C(O)--, in which each R.sup.16 is selected from the group consisting of C.sub.1 -C.sub.6 alkyl, alkenyl, or hydroxy alkyl group, or hydrogen; --OC(O)--; or a single covalent bond;
wherein each R.sup.15 is independently, a hydrocarbyl group containing from about 11 to about 31 carbon atoms, and wherein each n.sup.2 independently is from 2 to 4;
6.

### Claim 6

compounds having the formula: ##STR19## wherein each R.sup.15 is independently, a hydrocarbyl group containing from about 11 to about 31 carbon atoms;
n.sup.3 is 1 to 5;
n.sup.4 is 1 to 5; and
7.

### Claim 7 (depends on 1, 3, 4, 6)

mixtures thereof; and
C. from about 25% to about 95% by weight of the composition of a carrier material; and
wherein said sunscreen compound absorbs light at a wavelength of from about 290 nm to about 450 nm and is a solid compound having a melting point of from about 25.degree. C. to about 90.degree. C., or a viscous liquid at a
temperature of less than about 40.degree. C. 2. The composition of claim 1 wherein the sunscreen compound has at least one C.sub.8 to C.sub.22
hydrocarbon fatty organic moiety. 3. The composition of claim 1 wherein the sunscreen compound absorbs light at a wavelength of from about 315 nm
to about 400 nm. 4. The composition of claim 3 wherein the sunscreen compound is a solid having a melting point of from about 25.degree. C. to
about 75.degree. C. 5. The composition of claim 4 wherein the sunscreen compound is a solid having a melting point of from about 25.degree. C. to
about 50.degree. C. 6. The composition of claim 1 wherein the sunscreen
compound is from about 2% to about 20% by weight of the composition. 7. The composition of claim 6 wherein the sunscreen compound is from about 3% to about 15% by weight of the composition.

### Claim 8 (depends on 1)

The composition of claim 1 wherein the sunscreen compound is selected from the group consisting of 2-(2'-Hydroxy, 3'-dodecyl, 5'-methylphenyl) benzotriazole, Coco 3-›3'-(2H-benzotriazol-2'-yl)-5-tert-butyl-4'-hydroxyphenyl!propionate, and mixtures thereof.

### Claim 9 (depends on 1)

The composition of claim 1 wherein the fabric softening composition is a diester quaternary ammonium compound of the formula: ##STR20## wherein each Y' is --O--(O)C--, or --C(O)--O--;
p is 2 or 3;
each q.sup.2 is 1 to 5,
each R.sup.7 substituent is a short chain C.sub.1 -C.sub.6, alkyl or hydroxyalkyl group, benzyl group and mixtures thereof;
each R.sup.8 is a long chain C.sub.11 -C.sub.21 hydrocarbyl, or substituted hydrocarbyl substituent,
and counterion, X.sup.-, can be any softener-compatible anion.

### Claim 10 (depends on 9)

The composition of claim 9 wherein Y' is --O--(O)C--, q.sup.2 is 2, p is 2, R.sup.7 is a C.sub.1 -C.sub.3 alkyl group, and R.sup.8 is a C.sub.15 -C.sub.19 alkyl group.

### Claim 11 (depends on 9)

The composition of claim 9 wherein the fabric softening compound is from about 6% to about 32% by weight of the composition.

### Claim 12 (depends on 1)

The composition of claim 1 wherein R.sup.7 is a hydrogen or a hydroxy group; R.sup.8 is a C.sub.1 to C.sub.8 alkyl group; and R.sup.9 is a tert-amyl group, methyl phenyl group, or a coco dimethyl butanoate group.

### Claim 13 (depends on 1)

A method to decrease the fading of fabrics from sunlight by adding an effective amount of the composition of claim 1 to the rinse cycle of a textile laundering process.