초록 ▼

Disclosed is a liquid-impermeable, gas-permeable nonwoven material comprising a thermally consolidated blend of (1) 5% to 30% of a first polyolefin pulp, (2) 15% to 90% of a second polyolefin pulp having a melting point at least 20°C. higher than the first polyolefin pulp, and (3) 5% to 55% of a sta

Disclosed is a liquid-impermeable, gas-permeable nonwoven material comprising a thermally consolidated blend of (1) 5% to 30% of a first polyolefin pulp, (2) 15% to 90% of a second polyolefin pulp having a melting point at least 20°C. higher than the first polyolefin pulp, and (3) 5% to 55% of a staple fiber. Also disclosed is a wet forming method for making such a nonwoven material without the use of surfactants.

대표청구항 ▼

A nonwoven material comprising a thermally consolidated , wet laid blend comprising (1) from about 5% to about 30% of a first polyolefin pulp, (2) from about 15% to about 90% of a second polyolefin pulp having a melting point at least 20°C. higher than the first polyolefin pulp, and (3) from about 5

A nonwoven material comprising a thermally consolidated , wet laid blend comprising (1) from about 5% to about 30% of a first polyolefin pulp, (2) from about 15% to about 90% of a second polyolefin pulp having a melting point at least 20°C. higher than the first polyolefin pulp, and (3) from about 5% to about 55% of a staple fiber, based on the total weight of the blend, said material being impermeable to liquids and permeable to gases. A laminate comprising a first layer and a second layer, said second layer comprising a thermally consolidated, wet laid blend comprising (1) for about 5% to about 30% of a first polyolefin pulp, (2) from about 15% to about 90% of a second polyolefin pulp having a melting point at least 20°C. higher than the first polyolefin pulp, and (3) from about 5% to about 55% of a staple fiber, based on the total weight of the blend, said laminate being impermeable to liquids and permeable to gases.