Package for controlling the stability of a liquid nonaqueous detergent
US4919834A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 1988 |
| Grant date | Apr 24, 1990 |
| Priority date | — |
| Expiry date | Sep 28, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D17/041
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a package for a phase stable, liquid nonaqueous detergent, comprising: PA0 a plastic, relatively thin-walled container, said container having an end wall and a circumscribing side wall which narrows to a finish, and a liquid detergent contained in said container, said detergent comprising: PA1 (a) 20-90% of a liquid portion which comprises an alkoxylated nonionic surfactant; PA1 (b) 5-50% of a solids portion which comprises: PA2 (i) a builder; PA2 (ii) 0-20% of the detergent of an oxidant; said solids being stably suspended in said liquid portion, by means of PA1 (c) a phase stabilizing amount of a lower alkylated fused ring polyarylene sulfonate; and PA1 (d) 0-5% of a hydrolytic enzyme; PA0 whereby the phase stability of said liquid detergent in storage in said container is controlled, by the selection of either: PA1 (1) said container being constructed of a homopolymeric resin, said container having a minimum average cross-sectional dimension r/2 of at least about 6.8 millimeters in order to minimize interaction with said plastic; PA1 (2) said container being constructed of a heteroatom-containing polymer; or PA1 (3) a combination thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.