Fabric-softening particles
US4764292A · kind A · utility
4Cited by
7References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 5, 1987 |
| Grant date | Aug 16, 1988 |
| Priority date | — |
| Expiry date | Oct 5, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/126
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A fabric softening particle is provided comprising a mixture of quaternary ammonium ion-exchanged clay having an ion-exchange capacity of at least about 10 meq/100 gms and preferably about 50 meq/100 gms and a water-insoluble quaternary ammonium salt in the ratio of 1:3 to 3:1. The particle softens more efficiently than either of its components. When incorporated into a detergent powder, detergency is not diminished as would occur when either of the particle components are separately incorporated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.