Methods of manufacturing personal care products
US6723269B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2001 |
| Grant date | Apr 20, 2004 |
| Priority date | — |
| Expiry date | Oct 24, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/718
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Methods are provided for manufacturing an antiperspirant or deodorant product within a container, the product having an application surface that includes first and second portions having different compositions. The methods generally include (a) delivering to an open end of the container, through a first delivery nozzle, a first composition that will form the first portion, and, through a separate second delivery nozzle, a second composition that will form the second portion, the first and second compositions being in molten form during delivery, (b) providing a barrier between the first and second compositions to prevent intermingling thereof, (c) allowing the first and second compositions to solidify to form the product; and (d) removing the barrier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.