Liquid or solid fabric softener composition comprising microencapsulated fragrance suspension and process for preparing same
US4464271A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1983 |
| Grant date | Aug 7, 1984 |
| Priority date | — |
| Expiry date | Nov 30, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/56
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Described are liqiud or solid fabric softener compositions of matter which effect a continuously high fragrance intensity release from the cloth or fabric treated with same, evenly and uniformly over an extended period of time and which can be adapted to yield differing aromas from a qualitative and quantitative standpoint in a controllable manner containing a mixture of (i) a non-confined fragrance composition; (ii) one or more fragrance oils which are physically entrapped in one or more types of solid particles and (iii) a suspending agent such as hydroxypropyl cellulose, silica, xanthan gum, ethyl cellulose or combinations of the previously mentioned four substances; the non-confined fragrance substance, the entrapped fragrance oil and the suspension agent being premixed prior to the subsequent creation of the liquid or solid fabric softener compositions of matter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.