The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 29, 1991
Filed:
Sep. 02, 1988
John D Moon, Hastings, MN (US);
Margaret M Sheridan, St. Paul, MN (US);
Francis M Stark, Jr, St. Paul, MN (US);
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Abstract
An acrylic terpolymer pressure-sensitive adhesive comprising a photopolymerized polymer containing an alkyl acrylate monomer, the alkyl groups of which have an average of 6 to 12 carbon atoms, a first polar copolymerizable monomer selected from strongly polar monomers, and a second polar monomer selected from the group consisting of strongly polar monomers and moderately polar monomers, a hydrogenated rosin ester tackifying agent, and a photoinitiator, wherein the adhesive has a lower glass transition temperature as measured by Dynamic Mechanical Thermal Analysis than would an identical acrylic terpolymer adhesive omitting the tackifying agent.