Pigment system for paper
US4752341A · kind A · utility
50Cited by
3References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 1, 1987 |
| Grant date | Jun 21, 1988 |
| Priority date | — |
| Expiry date | Jun 1, 2007 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H17/68
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Zeolite of a small controlled particle size has been found to be a pigment component to be used with TiO.sub.2 in papermaking. Zeolite A wherein the sodium has been at least partially replaced with calcium and/or hydronium ion is widely useful with TiO.sub.2 in papermaking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.