摘要:
A fiber composition which comprises a blend of modified polypropylene and modified poly(ethylene oxide). This fiber composition can be melt-processed to make fibers useful in flushable personal care products. A process for making this fiber composition is also provided.
摘要:
A fiber composition which comprises a blend of modified polypropylene and modified poly(ethylene oxide). This fiber composition can be melt-processed to make fibers useful in flushable personal care products. A process for making this fiber composition is also provided.
摘要:
A polypropylene fibre including a polypropylene blend comprising up to 15% by weight of sPP at least 10% by weight of a first isotactic polypropylene produced by a metallocene catalyst, and optionally a second isotactic polypropylene produced by a Ziegler-Natta catalyst.
摘要:
Improved thermoplastic polymer soft elastic fiber blend compositions including a crystalline isotactic polypropylene component and a crystallizable alpha-olefin and propylene copolymer component, the copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided prepared from 0% to 95%, preferably 2% to 40% of the crystalline isotactic polypropylene and from 5% to 100%, preferably 60% to 98% of a crystallizable ethylene and propylene copolymer, wherein said copolymer comprises isotactically crystallizable propylene sequences and is predominately propylene. The resultant blends manifest unexpected compatibility characteristics, increased tensile strength, and, improved resistance to elastic deformation.
摘要:
Nonwoven fabrics and fabric laminates are formed from continuous filaments or staple fibers of a select blend of specific grades of polyethylene and polypropylene which give improved fabric performance not heretofore recognized or described, such as high abrasion resistance, good tensile properties, excellent softness and the like. Furthermore, these blends have excellent melt spinning and processing properties which permit efficiently producing nonwoven fabrics at high productivity levels. The polymers are present as a lower-melting dominant continuous phase and at least one higher-melting noncontinuous phase dispersed therein. The lower-melting continuous phase forms at least 70 percent by weight of the fiber and comprises a linear low density polyethylene polymer of a melt index of greater than 10 and a density of less than 0.945 g/cc. At least one higher-melting noncontinuous phase comprises a polypropylene polymer with melt flow rate of greater than 20 g/10 min.