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.

Date of Patent:
Nov. 30, 2004

Filed:

Jan. 16, 2003
Applicant:
Inventors:

Pavel Holub, Sokolov, CZ;

Edita Moudra, Karlovy Vary, CZ;

Olga Bernatova, Sokolov, CZ;

Jiri Horalek, Pardubice, CZ;

Jiri Havranek, Kolin, CZ;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 3/300 ; C08L 3/302 ; C08L 3/304 ; C08L 3/500 ; C08L 3/904 ;
U.S. Cl.
CPC ...
C08L 3/300 ; C08L 3/302 ; C08L 3/304 ; C08L 3/500 ; C08L 3/904 ;
Abstract

A modified pressure sensitive adhesive (PSA) is produced by polymerizing at least one ethylenically unsaturated monomer to form a base polymer and reacting the base polymer with a modifying polymer comprising units derived from a n-vinyl lactam to thereby produce a modified polymer. The modified polymer can be used to form modified PSAs having improved adhesion properties over PSAs formed from the unmodified base polymer.


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