Formula design for a solid laundry fabric softener
US11015144B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2019 |
| Grant date | May 25, 2021 |
| Priority date | — |
| Expiry date | Jul 12, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D2111/12
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Solid laundry fabric softening compositions for laundry applications of use are disclosed. In particular, solid laundry fabric softening compositions combining quaternary dialkyl actives with low iodine values and silicone provide softness without causing any significant yellowing or loss of water absorption or wicking to the treated linen. The solid laundry fabric softening compositions can be provided as a multi-use block having uniform dispensing rates and without block sloughing. Beneficially, the combination of processing aids for solidification comprising one or more of (A) polyethylene glycol and an acidulant, (B) a surfactant and an acidulant, or (C) polyethylene glycol, a surfactant and an acidulant, are combined with the quaternary ammonium compounds and silicone to provide the stable solid composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.