摘要 |
Three-dimensional nonwoven webs comprise at least one layer consisting of drawn and unoriented thermoplatic fibers formed from a blend of polypropylene and polybutylene, wherein the blend by weight is from 90% to 70% polypropylene and from 10% to 30% polybutylene. The blend can be a blend of a homopolymer of polypropylene and a homopolymer of polybutylene: a homopolymer of polypropylene and a copolymer of polybutlene: a copolymer of polypropylene and a homopolymer of polybutylene: and a copolymer of polypropylene and a copolymer of polybutylene. In addition, ternary blends comprising polypropylene, polybutylene and a terpolymer (propylene, ethylene, and l-butene) are disclosed. The resulting nonwoven webs have high strength, toughness, and tear resistance. |
申请人 |
KIMBERLY-CLARK CORP., NEENAH, WIS., US |
发明人 |
DAPONTE, DIEGO H., GREENVILLE, SOUTH CAROLINA 29607, US;GWALTNEY, SHARON WATKINS, ROSWELL, GA 30076, US;SHAWVER, SUSAN ELAINE, ALPHARETTA, GEORGIA 30201, US;WATTS, HUGO PAUL, LARKFIELD, MAIDSTONE, KENT ME20 6UP, GB |