Patent ID: 6146694
Filing Date: 2000-11-14
Classification: H01M,Y02E

Abstract:
A method of making a calendered, segment coated, continuous web including the steps of:repeatedly applying segment coatings on both sides of the web such that each segment coating has a leading edge and a trailing edge transverse to the web direction and such that the segment coatings on a first side of the web are longitudinally aligned with the segment coatings on the second side of the web whereby the leading edges and trailing edges of the first side segment coatings are proximate to the leading edges and the trailing edges of the second side segment coatings respectively, andcalendering the segment coated web between calender rolls, the web being oriented during the calendering such that the coated segments enter the calender rolls at their leading edges,wherein the improvement comprises staggering at least one of the leading edges and the trailing edges of the first side segment coatings from the corresponding leading edges and trailing edges of the second side segment coatings in an amount sufficient to stepwise engage or disengage the calender rolls from the segment coatings on each side of the web during calendering, wherein the amount staggered must exceed alignment variations for an intentionally aligned web.