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:
Nov. 01, 1983
Filed:
Feb. 16, 1982
Peter Gleichenhagen, Hamburg, DE;
Ingrid Wesselkamp, Hamburg, DE;
Abstract
A water-soluble, pressure-sensitive, self-adhesive composition comprising a limited class of copolymers and a specific plasticizer which is completely neutralized with potassium hydroxide. The composition comprises 30 to 80 parts of a copolymer of 70 to 88% by weight acrylic acid butyl ester and 12 to 30% by weight vinyl carboxylic acid. The ester may be substituted in an amount of 3 to 12% by weight by acrylic acid-2-ethylhexyl ester and/or 5 to 25% by weight by a mixture of vinyl acetate and fumaric acid dialkyl ester. The composition also includes 20 to 70 parts by weight of a water soluble plasticizer which is ethoxylated phenol (or alkylphenol), ethoxylated alkyl mono- or diamine, or an ethoxylated alkyl ammonium compound. The composition is particularly useful for the production of adhesive tapes and similar articles useful in the papermaking industry for maintaining paper webs in continuous form.