Paperboard laminates having polar copolymer/nonpolar polymer blend surface coatings
摘要
The present invention relates to a novel coextrusion coating for paper or paperboard substrates. The coextrusion includes a nonpolar polymer layer and a thin exterior skin layer made up of a nonpolar polymer and a polar copolymer. The addition of the polar polymer improves long term treatment level retention which improves long term wettability for printing and gluing adhesion during package or carton formation.
申请公布号
US5196269(A)
申请公布日期
1993.03.23
申请号
US19910797508
申请日期
1991.11.22
申请人
INTERNATIONAL PAPER COMPANY
发明人
KITTRELL, JAMES M.;GIBBONS, CHARLES F.;WHILLOCK, ALLAN A.;KINSEY, JR., JOE L.;TANNER, CYNTHIA L.