Microcapsule-containing water-base coating formulation and copying and/or recording material making use of said coating formulation
US4760108A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1985 |
| Grant date | Jul 26, 1988 |
| Priority date | — |
| Expiry date | Dec 20, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/165
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A microcapsule-containing water-base coating formulation comprises as essential components (a) microcapsules making use of a synthetic resin as a wall-forming material and (b) a reaction product obtained by polymerizing at least one water-soluble vinyl monomer (B) in the presence of a high polymer latex (A) having a glass transition point of 60.degree. C. or lower. The latex (A) and vinyl monomer (B) are used at a solid weight ratio of 3:97-90:10. The water-base coating formulation can provide a microcapsule-coated layer having significantly-improved pressure resistance and frictional stability without need for a stilt. The water-base coating formulation can be applied at a high speed, thereby making a significant improvement to the productivity of carbonless copying and/or recording paper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.