2 patents
Utility
Process for Producing Polyvinyl Alcohol Articles
5 May 22
The present invention provides a process for modifying the surface of a polyvinyl alcohol film or fabric by applying heat and pressure to the film or fabric to increase the moisture on the surface which is held by the fabric and to coalesce the surface fibers and reduce the porosity of the surface.
Novis Smith, Charles Roberson
Filed: 9 Nov 21
Utility
Process for producing polyvinyl alcohol articles
9 Nov 21
The present invention provides a process for modifying the surface of a polyvinyl alcohol film or fabric by applying heat and pressure to the film or fabric to increase the moisture on the surface which is held by the fabric and to coalesce the surface fibers and reduce the porosity of the surface.
Novis Smith, Charles Roberson
Filed: 24 Oct 17
- Prev
- 1
- Next
Patents are sorted by USPTO publication date, most recent first