Cellulosic web with a permeant barrier or contaminant trap

B - Operations – Transporting – 32 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

B32B 23/08 (2006.01) B01D 69/14 (2006.01) B01D 71/08 (2006.01) B32B 27/08 (2006.01) C08L 1/00 (2006.01) C08L 97/02 (2006.01) D21H 19/84 (2006.01)

Patent

CA 2336795

Nonwoven cellulosic fiber webs including, paperboards and corrugated paperboard, etc., are described containing a barrier layer (250) that can act both as a barrier to the passage of a permeant and as a trap for contaminant materials that can arise in new materials or from the recycle of fiber in the manufacture of paperboard. The effective material which acts as a trap or barrier is a cyclodextrin compound, substantially free of an inclusion complex compound. The cyclodextrin barrier layer (250) can be corrugated or sheet laminated with or on the cellulosic web (240). Alternatively, the cyclodextrin material can be included in a coating composition that is coated (210) on the surface or both surfaces of the cellulosic web (240) after web formation. Further, the cyclodextrin material can be included in a thermoplastic film that can be used as one layer in a bilayer or multilayer laminate containing a cellulosic web (240).

L'invention concerne des bandes de fibres cellulosiques non tissées comprenant des cartons et des cartons ondulés, etc. contenant une couche (250) servant à la fois de barrière au passage d'un perméant et de piège pour des matériaux contaminants dérivés de nouveaux matériaux ou du recyclage de la fibre dans la fabrication du carton. Le matériau efficace servant de piège ou barrière est un composé de cyclodextrine sensiblement exempt d'un composé complexe d'inclusion. La couche barrière (250) en cyclodextrine peut être ondulée ou en feuille stratifiée sur la bande cellulosique. Selon une variante, le matériau de cyclodextrine peut être ajouté dans une composition de revêtement enduite (210) sur la surface ou les surfaces de la bande cellulosique (240) après la formation de la bande. Ensuite, le matériau de cyclodextrine peut être ajouté dans un film thermoplastique pouvant être utilisé en tant que couche dans un stratifié à deux couches ou à couches multiples contenant une bande cellulosique (240).

LandOfFree

Say what you really think

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

Rating

Cellulosic web with a permeant barrier or contaminant trap does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cellulosic web with a permeant barrier or contaminant trap, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cellulosic web with a permeant barrier or contaminant trap will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1440284

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