Hot melt pressure sensitive adhesive composition that includes vegetable wax and articles including the same
View Patent ↗A hot melt pressure-sensitive adhesive composition that includes thermoplastic polymer, tackifying agent, plasticizer oil, and from at least 5% by weight to about 25% by weight vegetable wax.
1. A hot melt pressure-sensitive adhesive composition comprising:
a thermoplastic elastomer comprising a block copolymer comprising at least one A block comprising polyvinyl aromatic compound and at least one B block comprising an elastomeric unhydrogenated conjugated diene, hydrogenated conjugated diene or a combination thereof;
tackifying agent;
plasticizer oil; and
from at least 5% by weight to about 25% by weight vegetable wax the pressure-sensitive adhesive composition exhibiting an onset of crystallization from melt of no greater than about 50° C.
2. The hot melt pressure-sensitive adhesive composition of claim 1 , wherein said thermoplastic elastomer comprises at least one of styrene-isoprene-styrene, styrene-butadiene-styrene, styrene-ethylene-propylene-styrene, and styrene-ethylene-butylene-styrene, and styrene-ethylene-ethylene-propylene-styrene.
3. The pressure-sensitive adhesive composition of claim 1 , wherein said vegetable wax is derived from at least one of soy, palm, corn, and cottonseed.
4. The pressure-sensitive adhesive composition of claim 1 , wherein said vegetable wax comprises at least one triglyceride.
5. The pressure-sensitive adhesive composition of claim 1 , comprising from 5% by weight to about 20% by weight vegetable wax.
6. The pressure-sensitive adhesive composition of claim 1 , comprising from at least about 7% to about 25% by weight vegetable wax.
7. The pressure-sensitive adhesive composition of claim 1 , comprising from at least about 10% to about 25% by weight vegetable wax.
8. The pressure-sensitive adhesive composition of claim 1 , further comprising superabsorbent polymer.
9. The pressure-sensitive adhesive composition of claim 1 , further comprising from about 1% by weight to about 60% by weight superabsorbent polymer.
10. The pressure-sensitive adhesive composition of claim 1 , exhibiting a peel force of at least about 0.2 lb/linear inch.
11. The pressure-sensitive adhesive composition of claim 1 , exhibiting a peel force of at least about 2 lb/linear inch.
12. The pressure-sensitive adhesive composition of claim 1 , exhibiting an onset of crystallization from melt of no greater than about 40° C.
13. The pressure-sensitive adhesive composition of claim 1 , comprising
from about 5% by weight to about 30% by weight said elastomer;
from about 10% by weight to about 60% by weight said tackifying agent;
from about 2% by weight to about 30% by weight plasticizer oil; and
from about 7% by weight to about 20% by weight said vegetable wax.
14. The pressure-sensitive adhesive composition of claim 1 further comprising metallocene polymer.
15. The pressure-sensitive adhesive composition of claim 1 further comprising at least 5% by weight metallocene polymer.
16. The pressure-sensitive adhesive composition of claim 1 , wherein said vegetable wax is soy wax.
17. The pressure-sensitive adhesive composition of claim 1 exhibiting a T-Peel value after aging for two weeks at 120° F. that is greater than its initial T-Peel value.
18. A hot melt composition comprising:
from 5% by weight to about 70% by weight of the hot melt pressure sensitive adhesive composition of claim 1 ; and
superabsorbent polymer.
19. A hot melt pressure-sensitive adhesive composition comprising:
a metallocene polymer;
tackifying agent;
plasticizer oil; and
vegetable wax the pressure-sensitive adhesive composition exhibiting an onset of crystallization from melt of no greater than about 50° C.
20. The pressure-sensitive adhesive composition of claim 19 , comprising
from about 5% by weight to about 30% by weight said metallocene polymer;
from about 10% by weight to about 60% by weight said tackifying agent;
from about 2% by weight to about 30% by weight plasticizer oil; and
from about 3% by weight to about 25% by weight said vegetable wax.
21. The pressure-sensitive adhesive composition of claim 19 exhibiting a T-Peel value after aging for two weeks at 120° F. that is greater than its initial T-Peel value.
22. The pressure-sensitive adhesive composition of claim 19 exhibiting a T-Peel value after aging for two weeks at 120° F. that is at least 25% greater than its initial T-Peel value.
23. An article comprising:
a substrate; and
a hot melt pressure sensitive adhesive composition disposed on said substrate, said hot melt pressure sensitive adhesive composition comprising the composition of claim 19 .
24. An article comprising:
a substrate; and
a pressure sensitive adhesive composition disposed on said substrate, said pressure sensitive adhesive composition comprising the composition of claim 1 .
25. A disposable diaper, sanitary napkin, wound care product, wipe, towel or tissue comprising the article of claim 24 .
26. A hot melt pressure-sensitive adhesive composition comprising:
a thermoplastic elastomer comprising a block copolymer comprising at least one A block comprising polyvinyl aromatic compound and at least one B block comprising an elastomeric unhydrogenated conjugated diene, hydrogenated conjugated diene or a combination thereof;
tackifying agent;
plasticizer oil; and
from at least 5% by wax,
the pressure-sensitive adhesive composition exhibiting a peel force of at least about 0.2 lb/linear inch.
27. A hot melt pressure-sensitive adhesive composition comprising:
a thermoplastic elastomer comprising a block copolymer comprising at least one A block comprising polyvinyl aromatic compound and at least one B block comprising an elastomeric unhydrogenated conjugated diene, hydrogenated conjugated diene or a combination thereof;
tackifying agent;
plasticizer oil; and
from at least 5% by weight to about 25% by weight vegetable wax,
the pressure-sensitive adhesive composition exhibiting a peel force of at least about 2 lb/linear inch.
28. A hot melt pressure-sensitive adhesive composition comprising:
a thermoplastic elastomer comprising a block copolymer comprising at least one A block comprising polyvinyl aromatic compound and at least one B block comprising an elastomeric unhydrogenated conjugated diene, hydrogenated conjugated diene or a combination thereof;
tackifying agent;
plasticizer oil; and
from at least 5% by weight to about 25% by weight vegetable wax,
the pressure-sensitive adhesive composition exhibiting a T-Peel value after aging for two weeks at 120° F. that is greater than its initial T-Peel value.
29. A hot melt pressure-sensitive adhesive composition comprising:
a metallocene polymer;
tackifying agent;
plasticizer oil; and
vegetable wax,
the composition exhibiting a T-Peel value after aging for two weeks at 120° F. that is greater than its initial T-Peel value.
30. A hot melt pressure-sensitive adhesive composition comprising:
a metallocene polymer;
tackifying agent;
plasticizer oil; and
vegetable wax,
the composition exhibiting a T-Peel value after aging for two weeks at 120° F. that is at least 25% greater than its initial T-Peel value.