Treatment compositions comprising microcapsules, primary or secondary amines, and formaldehyde scavengers
US9416339B2 · kind B2 · utility
5Cited by
0References
17Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 9, 2014 |
| Grant date | Aug 16, 2016 |
| Priority date | — |
| Expiry date | Mar 7, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/3723
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The need for a treatment composition which provides a pleasant odor to a treated situs, particularly one having a long-lasting woody, floral, fruity or citrus character, and which does not discolor over time, is met by formulating the treatment composition with microcapsules comprising a microcapsule wall formed from cross-linked formaldehyde, and a core comprising an aldehyde or ketone containing perfume, in combination with a formaldehyde scavenger which does not complex with the aldehyde and/or ketone and amine, to form complexes that result in discoloration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.