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US 2017/0290945 A1Published application
High cohesive strength polyolefin construction adhesive
AssigneeH.B. Fuller Company
InventorsNolan T. Hanson, Mark S. Kroll
Life of this patent
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Abstract
The invention includes a hot melt adhesive composition based on polyolefin polymers that can be used for construction applications in a disposable absorbent article. The olefin based hot melt adhesive composition has surprisingly good cohesive strength and a low odor.
Claims17
A hot melt adhesive composition comprising:
- a.) a first propylene based copolymer that has a co-monomer content of from 5% by weight to 20% by weight and a melt index of no greater than about 20 (130° C., 2.16 kg);
- b.) a second propylene based copolymer that has a Tg of no greater than −26° C. and a Brookfield Viscosity at 130° C. of no greater than about 20,000 cps;
- c.) tackifying agent;
- and
- d.) no less than about 22% by weight of plasticizer.
2 more elements
A hot melt adhesive composition comprising:
- a.) from about 6% by weight to about 15% by weight of a first propylene based copolymer that has a co-monomer content of from 5% by weight to 20% by weight and a melt index of no greater than about 20 (190° C., 2.16 kg);
- b.) from about 15% by weight to about 40% by weight of the second propylene based copolymer having a Tg of no greater than −26° C. and a Brookfield Viscosity at 190° C. of no greater than about 20,000 cps;
- c.) from about 15% by weight to about 45% by weight of a tackifying agent;
- d.) from about 20% by weight to about 45% by weight of a plasticizer;
- and
- e.) from about 2% by weight to about 10% of a polypropylene wax.
3 more elements
Dependencies are inferred from the claim text.