Concentrated liquid fabric softener with whiteners
US4772404A · kind A · utility
14Cited by
9References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 24, 1986 |
| Grant date | Sep 20, 1988 |
| Priority date | — |
| Expiry date | Dec 24, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/0015
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A concentrated fabric softener having a dual cationic high active system, a sufficient level of fluorescent dye to whiten cotton garments, and a non-ionizing base. The dual active system is included at levels of greater than about 10% and preferably comprises a difatty amido ammonium methyl sulfate and a ditallow dimethyl ammonium chloride in a ratio of at least 1.5:1. Use of the concentrated softener results in reduced container size and greater manufacturing efficiencies. Inclusion of fluorescent dye restores whiteness/brightness to cotton garments yellowed by age.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.