Process for producing sandwich structures with particulate material pattern
US8180603B2 · kind B2 · utility
55Cited by
27References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 1, 2008 |
| Grant date | May 15, 2012 |
| Priority date | — |
| Expiry date | Jan 24, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24628
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention is concerned with a process for forming a very well defined pattern of particulate material in a composite material comprising a web material and particulate absorbent material. The present invention relates also to a method for determining the equipment design and process parameter for such a process. In a particular application, the present invention provides a process for preparing liquid absorbent structures, such as may be useful for disposable absorbent articles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.