| http://www.w3.org/ns/prov#value | - In addition to adjustment of mechanical properties by altering the nature and proportion of the hard segment it is also possible to improve the strength of the film by cross-linking in a manner known per se, for example by addition of a cross-linking agent, such as a triisocyanate, to a solution of the polymer before casting the film, which is then dried and cured under suitable conditions.
|
