Multilayered, transparent articles and a process for their...

B - Operations – Transporting – 32 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

B32B 7/02 (2006.01) B32B 27/08 (2006.01) B32B 27/34 (2006.01) B32B 27/36 (2006.01)

Patent

CA 2601925

Disclosed is a process for the preparation of multilayered, shaped articles having high transparency and low haze and comprising one or more thermoplastic polymers selected from polyesters, polycarbonates, and polyarylates, and a copolyamide or a transamidized, homogeneous blend of a least two polyamides. The thermoplastic polymer components and the polyamide components have refractive indices which differ by about 0.006 to about -0.0006. The small difference in the refractive indices enable the incorporation of regrind into one or more of the layers of the article while maintaining high clarity. These articles can exhibit improved excellent barrier properties and good melt processability while retaining excellent mechanical properties. Metal catalysts can be incorporated into one or more layers to impart oxygen- scavenging properties.

L~invention concerne un procédé de préparation d~articles conformés, multicouches, de forte transparence et de faible voile, comprenant un ou plusieurs polymères thermoplastiques sélectionnés parmi les polyesters, les polycarbonates et les polyarylates, et un copolyamide ou bien un mélange homogène transamidé d~au moins deux polyamides. Les composants polymères thermoplastiques et les composants polyamides ont des indices de réfraction qui diffèrent d~environ 0,006 à environ -0,0006. La faible différence d~indice de réfraction permet l~incorporation de matière rebroyée dans une ou plusieurs couches de l~article tout en conservant une grande clarté. Ces articles peuvent présenter des propriétés de protection excellentes et améliorées et une bonne capacité de traitement par fusion tout en conservant d~excellentes propriétés mécaniques. On peut incorporer des catalyseurs métalliques à une ou plusieurs couches pour conférer des propriétés de balayage d~oxygène.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Multilayered, transparent articles and a process for their... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multilayered, transparent articles and a process for their..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multilayered, transparent articles and a process for their... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1644714

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.