High performance natural zeolite microparticle retention aid for papermaking
US7201826B2 · kind B2 · utility
0Cited by
8References
10Claims
0Family size
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Key dates
| Filing date | May 17, 2004 |
| Grant date | Apr 10, 2007 |
| Priority date | — |
| Expiry date | Jul 27, 2025 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H21/52
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A microparticle retention aid for use in papermaking containing a high performance purified natural zeolite pigment is disclosed. Use of the pigment facilitates manufacture of papers with improved quality and economics. When used as filler, the novel zeolite pigment is readily retained and eliminates print-through in uncoated papers. The novel zeolite pigment is low in abrasion and provides improved coefficient of friction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.