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US 2024/0400870 A1Published application
Ultra low viscosity hot melt adhesive composition
OwnerKevin P. Davis, Sydne M. Kreitz-Stillinventors
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Abstract
A hot melt adhesive composition includes less than 35% by weight polymer where the polymer includes an ethylene/alpha-olefin copolymer, or a combination of an ethylene/alpha-olefin copolymer and a propylene polymer, a wax, and a tackifying agent, and the composition exhibits a. viscosity of no greater than 2000 centipoise at 107° C.
Claims20
A hot melt adhesive composition comprising:
- less than 35% by weight polymer, the polymer comprising
- from 10% by weight to 30% by weight, based on the weight of the hot melt adhesive composition, ethylene/alpha-olefin copolymer,
- from 4% by weight to 20% by weight, based on the weight of the hot melt adhesive composition, propylene polymer,
- the amount of ethylene/alpha olefin copolymer in the composition being greater than the amount propylene polymer in the composition;
- from 20% by weight to 35% by weight of a wax having a drop melting point of no greater than 105° C.;
- and
- at least 20% by weight of a tackifying agent having a softening point less than 120° C.,
- the composition exhibiting a viscosity of no greater than 2000 centipoise (cP) at 107° C.
5 more elements
A hot melt adhesive composition comprising:
- less than 35% by weight polymer, the polymer being selected from the group consisting of
- ethylene/alpha-olefin copolymer, and
- a combination of ethylene/alpha-olefin copolymer and propylene polymer;
- from 20% by weight to 50% by weight of a tackifying agent having a softening point less than 120° C.;
- and
- from 20% by weight to 35% by weight of a wax having a drop melting point of no greater than 105° C.,
- the hot melt adhesive composition
- exhibiting a viscosity no greater than 1200 cP at 107° C. and a peel adhesion failure temperature (PAFT) greater than 45° C., and
- being free of paraffin wax.
6 more elements
Dependencies are inferred from the claim text.