Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Adhesive outermost layer
Patent
1992-05-18
1994-08-30
Lesmes, George F.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Adhesive outermost layer
525 98, 525 99, 604389, 604390, B32B 712, C08L 900, A61F 1315
Patent
active
053426851
ABSTRACT:
A hot melt coatable pressure-sensitive adhesive is provided showing high levels of adhesion to low surface energy films and nonwovens. The adhesive elastomeric phase comprises from 78 to 98 parts by weight of a diblock A-B type block copolymer with an elastomeric block of 1,3-polybutadiene with 2 to 22 parts by weight of multiblock A-B type block copolymer. The tackifying material comprises 140 parts or less of a solid tackifying resin and a liquid tackifier to provide an adhesive having a composite midblock glass transition temperature of less than -10.degree. C.
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Bond William J.
Copenheaver Blaine
Griswold Gary L.
Kirn Walter N.
Lesmes George F.
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