IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0210691
(2002-07-31)
|
우선권정보 |
GB-0002124(2000-01-31) |
발명자
/ 주소 |
|
출원인 / 주소 |
- Reckitt Benckiser (UK) Limited
|
대리인 / 주소 |
Akin Gump Strauss Hauer &
|
인용정보 |
피인용 횟수 :
6 인용 특허 :
7 |
초록
▼
A non-aqueous, single phase, non-thickened liquid air freshener or insecticidal composition having a flashpoint of greater than about 62째 C. is provided. The composition contains: a) a polar solvent; b) up to about 10 wt % of a non-polar aliphatic hydrocarbon solvent; and c) a fragrance or an insect
A non-aqueous, single phase, non-thickened liquid air freshener or insecticidal composition having a flashpoint of greater than about 62째 C. is provided. The composition contains: a) a polar solvent; b) up to about 10 wt % of a non-polar aliphatic hydrocarbon solvent; and c) a fragrance or an insecticide. The composition may be dispensed from a device having a chamber with at least one wall made of a material which enables a vapor of the composition to diffuse out of the chamber.
대표청구항
▼
I claim: 1. An air freshener or insecticidal device comprising a chamber containing about 5 to about 50 grams of a composition, wherein the chamber comprises at least one permeable membrane wall comprising a material which enables a vapor of the composition to diffuse through the wall and out of th
I claim: 1. An air freshener or insecticidal device comprising a chamber containing about 5 to about 50 grams of a composition, wherein the chamber comprises at least one permeable membrane wall comprising a material which enables a vapor of the composition to diffuse through the wall and out of the chamber, and wherein the composition is a non-aqueous, single phase, non-thickened liquid air freshener or insecticidal composition having a flashpoint greater than about 62째 C. and comprising: a) a polar solvent; b) a non-polar aliphatic hydrocarbon solvent, which is present in amount up to about 10 wt %, based on the total weight of the composition; and c) a fragrance or an insecticide; wherein the polar solvent has an evaporation rate less than about 100 and the non-polar solvent has an evaporation rate less than about 16, both rates being based on a scale in which n-butyl acetate has an evaporation rate of 100. 2. The device according to claim 1, wherein the wall comprises a polyethylene. 3. The device according to claim 1, wherein the wall has a thickness of about 20 to about 100 micrometers. 4. The device according to claim 1, wherein the composition is an air freshener and comprises a fragrance. 5. The device according to claim 1, wherein the polar solvent comprises a glycol ether. 6. The device according to claim 5, wherein the polar solvent is selected from the group consisting of a (C1-4 alkyl) glycol(C1-4 alkyl) ether, a di(C1-4 alkyl)glycol(C1-4 alkyl)ether, a (C1-4 alkyl)glycol di(C1-4 alkyl) ether, a di(C1-4 alkyl)glycol di(C1-4 alkyl)ether, a tri(C1-4 alkyl)glycol(C1-4 alkyl) ether, and mixtures thereof. 7. The device according to claim 5, wherein the polar solvent is selected from the group consisting of 3-butoxypropan-2-ol, propylene glycol monomethyl ether, tripropylene glycol methyl ether, dipropylene glycol methyl ether, dipropylene glycol dimethyl ether, dipropylene glycol n-propyl ether, dipropylene glycol mono n-butyl ether, tripropylene glycol mono n-butyl ether, propylene glycol n-butyl ether, and mixtures thereof. 8. The device according to claim 1, wherein the non-polar solvent is a C10-18 alkane or a cycloparaffinic hydrocarbon. 9. The device according to claim 1, wherein a weight ratio of the polar solvent to the non-polar solvent is about 1:1 to about 6:1. 10. The device according to claim 9, wherein the weight ratio is about 2:1 to about 5:1. 11. The device according to claim 1, wherein the non-polar solvent is present in an amount of about 1 to about 10 wt % based on the total weight of the composition. 12. The device according to claim 1, wherein the composition has an evaporation rate such that the device has a lifetime on an order of about 45 days. 13. The device according to claim 1, wherein the solvents of the composition leave no residue, thereby providing an end-of-life indication for the device. 14. The device according to claim 1, wherein the composition comprises: a) about 15 to about 40 wt % of the polar solvent; b) about 1 to about 10 wt % of the non-polar solvent; and c) about 50 to about 80 wt % of the fragrance or insecticide.
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