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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0776130 (1991-10-15) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 1015 인용 특허 : 12 |
Substantially linear olefin polymers having a melt flow ratio, I10/I2, ≥5.63, a molecular weight distribution, Mw/Mn, defined by the equation: Mw/Mn≤(I10/I2)-4.63, and a critical shear stress at onset of gross melt fracture of greater than about 4×106 dyne/cm2 and their method of manufacture are dis
Substantially linear olefin polymers having a melt flow ratio, I10/I2, ≥5.63, a molecular weight distribution, Mw/Mn, defined by the equation: Mw/Mn≤(I10/I2)-4.63, and a critical shear stress at onset of gross melt fracture of greater than about 4×106 dyne/cm2 and their method of manufacture are disclosed. The substantially linear olefin polymers preferably have at least about 0.01 long chain branches/1000 carbons and a molecular weight distribution from about 1.5 to about 2.5. The new polymers have improved processability over conventional olefin polymers and are useful in producing fabricated articles such as fibers, films, and molded parts.
A substantially linear olefin polymer characterized as having: a) a melt flow ratio, I10/I2, ≥5.63, b) a molecular weight distribution, Mw/Mn, defined by the equation: Mw/Mn≤(I10/I2)-4.63, and c) a critical shear stress at onset of gross melt fracture of greater than about 4×106 dyne/cm2, wherein t
A substantially linear olefin polymer characterized as having: a) a melt flow ratio, I10/I2, ≥5.63, b) a molecular weight distribution, Mw/Mn, defined by the equation: Mw/Mn≤(I10/I2)-4.63, and c) a critical shear stress at onset of gross melt fracture of greater than about 4×106 dyne/cm2, wherein the olefin polymer is further characterized as a copolymer of ethylene with a C3-C20 alpha-olefin.
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