Acrylic pressure sensitive adhesive composition and pressure...

Details Acrylic pressure sensitive adhesive composition and pressure... Acrylic pressure sensitive adhesive composition and pressure...

2007-12-25

2007-12-25

Szekely, Peter (Department: 1714)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C428S041500, C428S3550AC, C442S151000

Reexamination Certificate

active

11081574

ABSTRACT:
Provided is an acrylic pressure sensitive adhesive composition excellent in pressure sensitive adhesive characteristics and removability and a pressure sensitive adhesive tape using the acrylic pressure sensitive adhesive composition. An acrylic pressure sensitive adhesive composition containing an acrylic polymer obtained by at least copolymerizing a (meth) acrylic acid alkyl ester with an alkyl group having 2 to 14 carbon atoms and a carboxyl group containing unsaturated monomer copolymerizable with the (meth) acrylic acid alkyl ester, and tackifier resins, wherein the tackifier resins are respective resins each containing a natural product as a raw material, include at least 4 kinds of the resins different in a molecular structure from one another and a content of each of the tackifier resins is in the range of 5 parts by weight or more and 20 parts by weight or less relative to 100 parts by weight of the acrylic polymer.

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