FILM STRUCTURES AND METHODS OF MAKING FILM STRUCTURES.
Application 1266/CHENP/2004 published 2006-04-28, filed 2004-06-08
A method of making a three-dimensional film structure having controllable contact properties comprises making separable surface elements on a top portion of a film structure and stretching the film structure to separate the separable surface elements, thereby obtaining a desired surface structure which delivers a certain contact property such as a pressure sensitive adhesive property. The separable surface elements are provided using a cut film surface, a stemmed film, or a layer of particles.
Applicant
3M INNOVATIVE PROPERTIES COMPANY,
3M Center, Post Office Box 33427, Saint Paul, MN 55133-3427,, USA.
Inventor
International Info
Classification: C09J 7/02, A61K 9/70
Publication Number: PCT/US02/36290
Priority Information
10/016,544 USA. 2001-12-11