Paper finishing aid
US6090871A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 5, 1996 |
| Grant date | Jul 18, 2000 |
| Priority date | — |
| Expiry date | Nov 5, 2016 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H17/57
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to compositions comprising a polyisocyanate having ionic groups or polyether groups and at least one member selected from the group consisting of a naturally occurring polymer, a polysiloxane graft copolymer, a water-dilutable synthetic polymer and a cationic polymer or a naturally occurring polymer and at least one member selected from the group consisting of a polysiloxane graft copolymer, a water-dilutable synthetic polymer and a cationic polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.