Back to results
US 10,786,594 B2Granted
High cohesive strength polyolefin construction adhesive
AssigneeH.B. Fuller Company
InventorsNolan T. Hanson, Mark S. Kroll
Life of this patent
Estimating the term…
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.
Claims21
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 (190° C., 2.16 kg);
- b.) a second propylene based copolymer, consisting of a single site catalyzed 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.) tackifying agent;
- and
- d.) a 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 6% by weight to 15% 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, selected from the group consisting of single site catalyzed propylene based copolymers and Amorphous Poly Alpha Olefin propylene based copolymer and 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 hydrogenated hydrocarbon tackifying agent;
- and
- d.) from about 20% by weight to about 45% by weight of a plasticizer selected from the group consisting of oil, olefin oligomers, polybutenes, polyisoprenes and polybutadienes.
2 more elements
Dependencies are inferred from the claim text.