HIGH TENSILE STRENGTH ARTICLE WITH ELASTOMERIC LAYER
The present invention is an article of a film or sheet or a laminate of the film or sheet with nonwoven facing layer(s). The film or sheet is a blended compound of selectively hydrogenated thermoplastic block copolymer, a tackifying resin, and polyolefin and/or polystyrene, that has superior tensile strength and a good balance of good elasticity, low stiffness and good adhesion.
1 .- 22 . (canceled)
23 . An article having high tensile strength and good adhesion properties, comprising: film, fiber, filament, plurality of filaments, foam, nonwoven web, parallel strands, or sheet of an elastomeric compound, or a laminate formed by bonding an elastomeric compound layer in the form of a film, fiber, filament, plurality of filaments, foam, nonwoven web, or parallel strands to one or more facing layers, said elastomeric compound comprising:
from about 60 to about 80 wt. % selectively hydrogenated thermoplastic block copolymer of S-EB-S, S-EP-S, S-EP-S-EP, S-EB-S-EB, or S-EB/S-S,
from about 17 to about 25 wt. % of hydrogenated hydrocarbon resin,
from about 4-13 wt. % polyolefin, said polyolefin is polyethylene wax,
said article having a tensile strength of at least 6000 psi in the MD and/or TD direction, and a Probe Tack (ASTM D 2979) of at least 0.110 Newtons.
24 . The article of claim 23 , wherein said polyethylene wax is substantially linear ethylene polymers, homogeneously branched linear ethylene polymers, heterogeneously branched linear ethylene polymers, including linear low density polyethylene (LLDPE), ultra or very low density polyethylene (ULDPE or VLDPE), medium density polyethylene (MDPE), high density polyethylene (HDPE), or low density polyethylene (LDPE) and
wherein the hydrogenated hydrocarbon resin is selected from the group consisting of hydrogenated C 5 hydrocarbon resins, hydrogenated C 9 hydrocarbon resins, and combinations thereof.
25 . The article of claim 23 , said elastomeric compound further including antioxidant, stabilizer and HDPE partitioning agent.
26 . The article of claim 25 , wherein the total amount of antioxidant, stabilizer and HDPE partitioning agent is less than 2 wt. % of said elastomeric compound.
27 . The article of claim 23 , wherein said article has 100% hysteresis permanent set ≦6% in the MD and TD directions, 100% hysteresis recovered energy ≧70% in the MD and TD directions,
28 . The article of claim 23 , wherein said article has a 400% hysteresis permanent set of ≦30% in the MD and recovered energy ≧60% in the MD.
29 . The article of claim 23 wherein said facing layer or layers are comprised of homopolymers or copolymers of ethylene, propylene or butylene and mixtures of these, or an inelastic layer of nylon, polyester or polyurethane.
30 . An article having high tensile strength and good adhesion properties, comprising: film, fiber, filament, plurality of filaments, foam, nonwoven web, parallel strands, or sheet of an elastomeric compound, or a laminate formed by bonding an elastomeric compound layer in the form of a film, fiber, filament, plurality of filaments, foam, nonwoven web, or parallel strands to one or more facing layers, said elastomeric compound comprising:
from about 60 to about 80 wt. % selectively hydrogenated thermoplastic block copolymer of S-EB-S, S-EP-S, S-EP-S-EP, S-EB-S-EB, or S-EB/S-S,
from about 17 to about 25 wt. % of hydrogenated hydrocarbon resin,
from about 4-13 wt. % polyethylene wax that is substantially linear ethylene polymers, homogeneously branched linear ethylene polymers, heterogeneously branched linear ethylene polymers, including linear low density polyethylene (LLDPE), ultra or very low density polyethylene (ULDPE or VLDPE), medium density polyethylene (MDPE), high density polyethylene (HDPE), or low density polyethylene (LDPE),
from about 5-15 wt. % polystyrene,
said article having a tensile strength of at least 6000 psi in the MD and/or TD direction.
31 . The article of claim 30 , wherein said compound has a Probe Tack (ASTM D 2979) of at least 0.110 Newtons and wherein the hydrogenated hydrocarbon is selected from the group consisting of hydrogenated C 5 hydrocarbon resins, hydrogenated C 9 hydrocarbon resins, and combinations thereof.
32 . The article of claim 30 , wherein said facing layer or layers are comprising homopolymers or copolymers of ethylene, propylene or butylene and mixtures of these, or an inelastic layer of nylon, polyester or polyurethane.