초록 ▼

A nonwoven web is prepared from a polymeric blend comprising at least one elastomer and at least one thermoplastic resin. The nonwoven web comprises fibers produced by melt blowing the polymeric blend. Conventional techniques are used to accomplish the melt blowing but due to high viscosity of certa

A nonwoven web is prepared from a polymeric blend comprising at least one elastomer and at least one thermoplastic resin. The nonwoven web comprises fibers produced by melt blowing the polymeric blend. Conventional techniques are used to accomplish the melt blowing but due to high viscosity of certain elastomers it is frequently necessary to degrade the polymer blend prior to melt blowing. The nonwoven web exhibits improved extensibility, texture and hand.

대표청구항 ▼

A soft, elastic, melt blown non-woven web comprising random, discontinuous fibers having a diameter within the range of 0.5 to 5 microns and being bound together by entanglement, said fibers being composed of a polymer blend of (a) from 15 wt% to 50 wt% of an elastomeric copolymer of an isoolefin an

A soft, elastic, melt blown non-woven web comprising random, discontinuous fibers having a diameter within the range of 0.5 to 5 microns and being bound together by entanglement, said fibers being composed of a polymer blend of (a) from 15 wt% to 50 wt% of an elastomeric copolymer of an isoolefin and a conjugated diolefin and (b) from 85 wt% to 50 wt% of a thermoplastic olefin polymer resin, wherein said polymer blend has been thermally or oxidatively degraded to reduce substantially the intrinsic viscosity of the polymer blend.