Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Adhesive outermost layer
Patent
1989-09-18
1991-02-19
Foelak, Morton
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Adhesive outermost layer
428355, 428402, 521 54, 521 56, 521 63, 521 64, 521134, 521 60, 523223, 524801, 525205, 525218, 525221, 525228, C08J 9236, C08J 932
Patent
active
049943227
ABSTRACT:
A repositionable pressure-sensitive adhesive comprising from about 70% to about 99% hollow, polymeric, acrylate, inherently tacky, infusible, solvent-insoluble, solvent-dispersible, elastomeric microspheres comprising at least one alkyl acrylate or alkyl methacrylate ester, a majority of the microspheres having one or more interior voids having a diameter of at least about 10% of the diameter of the microsphere, and correspondingly, from about 30% to about 1% of a binder copolymer comprising an elastomeric polymeric backbone having pendant therefrom high Tg polymeric moieties.
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Delgado Joaquin
Leinen Roger W.
Silver Spencer F.
Foelak Morton
Minnesota Mining and Manufacturing
Neaveill D. P.
Sell D. M.
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