Article with tackifier-free adhesive

1. A disposable absorbent article comprising a longitudinal centerline, a lateral centerline, a front waist region comprising a front waist edge, a rear waist region comprising a rear waist edge, a crotch region disposed between said front and rear waist regions, two spaced apart longitudinal side edges joining said front waist edge to said rear waist edge, and comprising:

a) a topsheet;

b) a backsheet underlying said topsheet;

c) an absorbent core disposed between said topsheet and said backsheet, wherein said absorbent core comprises at least one of a core cover, a dusting layer, an acquisition layer, a distribution layer and a storage member;

d) at least one additional component selected from the group consisting of:

i) a fastening system for joining said front waist region to said rear waist region when said absorbent article is worn;

ii) barrier cuffs disposed adjacent and inboard one of said longitudinal side edges;

iii) gasketing cuffs disposed between said longitudinal side edge and said barrier cuffs;

iv) front ears disposed in said front waist region;

v) back ears disposed in said rear waist region; and

vi) a receiving member; and

e) a hot melt adhesive composition suitable for joining at least two absorbent article components together, wherein said hot melt adhesive composition comprises:

(i) from about 50 wt. % to about 90 wt. % of an amorphous polyolefin composition comprising more than 40% 1-butene; and

(ii) from about 10 wt. % to about 50 wt. % of a second amorphous polymer comprising a polyisobutylene with a molecular weight of 1500 to 6000;

and wherein said hot melt adhesive composition comprises less than 5% of a tackifier.

2. The absorbent article of claim 1 , wherein said hot melt adhesive joins said topsheet to an underlying nonwoven layer.

3. The absorbent article of claim 1 , wherein said hot melt adhesive joins an elastic material to a nonwoven material to form said barrier cuffs.

4. The absorbent article of claim 1 , wherein said hot melt adhesive joins an elastic material to said backsheet.

5. The absorbent article of claim 1 , wherein said hot melt adhesive joins said acquisition layer to said core cover.

6. The absorbent article of claim 1 , wherein said hot melt adhesive joins said distribution layer to said core cover.

7. The absorbent article of claim 1 , wherein said hot melt adhesive joins said topsheet to said backsheet adjacent a longitudinal edge of said absorbent article.

8. The absorbent article of claim 1 , wherein said hot melt adhesive joins said receiving member to said backsheet.

9. The absorbent article of claim 1 , wherein said hot melt adhesive joins said core cover to said dusting layer.

10. The absorbent article of claim 1 , wherein said hot melt adhesive joins said core cover to said backsheet.

11. The absorbent article of claim 1 , wherein said hot melt adhesive joins said dusting layer to said backsheet.

12. The absorbent article of claim 1 , wherein said second amorphous polymer comprises a viscous liquid with molecular weight of about 200-20,000 and a Saybolt Universal seconds (SUS) viscosity at 100° C. of about 100 to 20,000.

13. The absorbent article of claim 1 , wherein said amorphous polyolefin composition comprises less than 50 wt. % of one or more alpha olefin C 2 or C 4-20 monomers.

14. The absorbent article of claim 1 , wherein said adhesive has a density of less than 0.9 g/cm 3 .