Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Adhesive outermost layer
Patent
1991-03-21
1993-03-02
Lesmes, George F.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Adhesive outermost layer
428356, 428496, 428511, 428512, 524 47, 524492, B32B 712, C08L 300
Patent
active
051908182
ABSTRACT:
The adhesive composition of the invention exhibits an adequately controlled adhesive bonding strength when paper sheets coated therewith are bonded together to be adaptable to subsequent separation of the bonded sheets of paper by peeling. The essential ingredients of the adhesive composition include: (a) a rubber latex; (b) a silica gel powder having a specified average particle diameter; and (c) a starch, preferably, having a specified particle diameter, e.g. wheat starch, each in a specified weight proportion. In addition to the good balance between the reliability of the adhesive bonding and subsequent peelability, the paper sheet coated with the adhesive composition is prevented from a decrease in the adhesiveness even when the surface is contaminated with a silicone oil and from the troubles due to blocking when adhesive-coated sheets are stacked one on the other with the adhesive-coated surfaces in direct contact with each other.
REFERENCES:
patent: 3692713 (1972-09-01), Columbus et al.
patent: 4471082 (1984-09-01), Kwok et al.
patent: 4505976 (1985-03-01), Doehnert et al.
patent: 4568714 (1986-02-01), Overholt
patent: 4576854 (1986-03-01), Kurahashi
patent: 4673698 (1987-06-01), Krankkala
Lesmes George F.
Toppan Moore Co., Ltd.
Zirker D. R.
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