Polyhydroxyalkanotes and film formation therefrom

Details Polyhydroxyalkanotes and film formation therefrom Polyhydroxyalkanotes and film formation therefrom

C - Chemistry, Metallurgy

08

G

C08G 63/06 (2006.01) C08J 5/18 (2006.01)

Patent

CA 2153807

A supported or cast film of a polyhydroxyalkanoate polymer, such as a polyhydroxybuxyrate/valerate polymer, can be prepared by applying a layer of molten polymer to a cool (typically 4 to 20 °C) surface not substantially above the glass transition temperature of the polymer, so as to form a solid, glassy film with a high density of nucleation sites; subsequently the temperature of the film so formed is raised, for example to 40 °C or more, towards the optimum temperature for growth of the polymer's spherulites effectively separating the film formation/nucleation step from the crystallisation step (growth of spherulites around the nucleation sites). Smaller crystallites are formed, and the film has improved barrier properties.

Affiliated with

Also associated with

Rating

Polyhydroxyalkanotes and film formation therefrom does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polyhydroxyalkanotes and film formation therefrom, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyhydroxyalkanotes and film formation therefrom will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1819465