Pressure sensitive adhesive composition

2:

• The pressure sensitive adhesive composition according to claim 1, characterized in that at least one butene-1 (co)polymer has a content of butene-1 derived units of 90 to 99 wt.-%.

4:

• The pressure sensitive adhesive composition according to claim 1, characterized in that the composition being free of styrene block copolymer.

5:

• The pressure sensitive adhesive composition according to claim 1, characterized in that the composition has a melt flow index (MFI) of 2 to 18 g/10 min, measured according to DIN EN ISO 1133-1:2012-03;
• 2.16 kg, 190° C./10 min.

6:

• The pressure sensitive adhesive composition according to claim 1, characterized in that the composition comprises the at least one butene-1 (co)polymer in an amount of 35 to 75 wt.-%, based on the total weight of the composition.

7:

• The pressure sensitive adhesive composition according to claim 1, characterized in that the composition comprises the at least one solid tackifier in an amount 10 to 40 wt.-%, based on the total weight of the composition.

8:

• The pressure sensitive adhesive composition according to claim 1, characterized in that the composition comprises the at least one polyisobutylene polymer in an amount of 1 to 7.5 wt.-%, based on the total weight of the composition.

(canceled)

10:

• The pressure sensitive adhesive composition according to claim 1, characterized in that the composition further comprises an octene ethylene alpha-olefin copolymer.

11:

• The pressure sensitive adhesive composition according to claim 1, which is a closing mean for re-closable packaging unit for foods, drugs, hygienic tissues, cleaning tissues or cosmetic tissues and/or for packaging units to be heated in a microwave or oven.

12:

• An article comprising pressure sensitive adhesive composition according to claim 1 as an adhesive layer between two substrates.

13:

• The article according to claim 12, characterized in that at least one of the substrates is a material selected from the group consisting of PE (polyethylene), LDPE (low density polyethylene), PP (polypropylene), OPP (oriented polypropylene), PET (polyethylene terephthalate), APET (amorphous PET), PET-G (glycol modified polyethyleneterephthalate), rPET (recycled PET) or CPET (crystalline PET).

14:

• The article according to claim 12, which is a packaging units for foods, drugs, hygienic tissues, cleaning tissues or cosmetic tissues and/or packaging units to be heated in a microwave or oven.