Abherent and printable, crosslinkable or crosslinked silicone composition
US5817717A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1995 |
| Grant date | Oct 6, 1998 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H25/06
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to crosslinkable or crosslinked silicone compositions capable of being employed especially for forming an abherent coating or film for a fibrous or other support, for example made of paper or the like, or made of natural or synthetic polymer (film). One of the essential objectives of the invention is to provide a crosslinkable or crosslinked silicone composition which provides a satisfactory solution to the abherence/printability dilemma, traditionally encountered in abherent silicone coatings. This objective and others are attained by the composition of the invention, including at least one polyorganosiloxane and at least one polyvinyl alcohol corresponding to the following specifications: ester value (E.V.) higher than or equal to 80, preferably 100 and still more preferably between 120 and 200, and standard dynamic viscosity (.eta..sub.dt) lower than 12 mPa s and preferably lower than 10 mPa s, the dry weight ratio of the polyorganosiloxane fraction to the PVA fraction being established between 0.5 and 10, preferably between 1 and 5 and still more preferably between 1.5 and 3.5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.