Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Adhesive outermost layer
Patent
1997-01-30
1998-05-19
Yoon, Tae
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Adhesive outermost layer
428345, 156332, B32B 712
Patent
active
057533644
ABSTRACT:
The present invention provides pressure sensitive adhesives, compositions from which the pressure sensitive adhesives are formed, and articles having therein these pressure sensitive adhesives. The pressure sensitive adhesives, which have a Tg of less than about 20.degree. C., include a poly(.beta.-hydroxyorganoate) or mixture thereof. Preferably, these poly(.beta.-hydroxyorganoate)s include monomeric units of the general formula: ##STR1## wherein a minor amount (preferably no greater than about 20 mole percent) of the monomeric units have an R group containing 1-3 carbon atoms; and a major amount (preferably at least about 80 mole percent) of the monomeric units have an R group containing 4-30 (preferably 4-20) carbon atoms.
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Babu Gaddam N.
Hammar W. James
Rutherford Denise R.
Jordan Robert H.
Minnesota Mining and Manufacturing Company
Yoon Tae
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