B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 3/24 (2006.01) A61F 13/15 (2006.01) B32B 3/30 (2006.01) B32B 27/32 (2006.01)
Patent
CA 2201475
A process for the manufacture of a vapor permeable, liquid impermeable composite material (10, 12) comprising a three-dimensional apertured substrate (12) having a vapor permeable, liquid impermeable coating material (10) thereon, the substantially liquid impervious composite material, and an apparatus (38, 40, 42, 46, 48) for making the composite material, are diclosed. Successive portions of a continuous sheet of an apertural substrate are passed into contact with a continuous moving perforated member. The coating material is supplied onto the substrate. The coated substrate is subjected to a vacuum which causes the coating material to flow onto the substrate material, and in certain embodiments, at least partially into the apertures in the substrate. The vacuum is maintained for a period of time sufficient for the coating material to adhere to the substrate. The coated portions of the substrate are continuously removed from the moving member.
L'invention se rapporte à un procédé de fabrication d'un matériau composite (10, 12) imperméable aux liquides et perméable à la vapeur, comprenant un substrat ajouré à reliefs (12) sur lequel est déposé un matériau de revêtement (10) imperméable aux liquides et perméable à la vapeur; à un matériau composite pratiquement imperméable aux liquides et à un appareil (38, 40, 42, 46, 48) de fabrication de ce matériau composite. Des parties successives d'une feuille continue d'un substrat ajouré sont mises en contact avec un élément perforé mobile en continu. Le matériau de revêtement est appliqué sur le substrat. Le substrat recouvert est soumis à un vide qui fait s'écouler le matériau de revêtement sur le substrat, et, dans certains modes de réalisation, au moins partiellement dans les trous du substrat. Le vide est maintenu suffisamment longtemps pour que le matériau de revêtement adhère au substrat. Les parties recouvertes du substrat sont enlevées en continu de l'élément mobile.
Chang Peter I.
Mcbride Robert K.
Ray Carl D.
Thomas Paul E.
G. Ronald Bell & Associates
Tredegar Film Products Corporation
Tredegar Industries Inc.
LandOfFree
Vacuum assisted application of thin vapor permeable, liquid... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Vacuum assisted application of thin vapor permeable, liquid..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vacuum assisted application of thin vapor permeable, liquid... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1439294