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    • 3. 发明申请
    • HETEROGENEOUS POLYMER BLENDS AND MOLDED ARTICLES THEREFROM
    • 异构聚合物混合物和模塑制品
    • WO2006065649A1
    • 2006-06-22
    • PCT/US2005/044616
    • 2005-12-09
    • EXXONMOBIL CHEMICAL PATENTS INC.MEHTA, Aspy, K.LI, WenDATTA, SudhinIYER, Srivatsan, Srinivas
    • MEHTA, Aspy, K.LI, WenDATTA, SudhinIYER, Srivatsan, Srinivas
    • C08L23/10
    • C08L23/10C08L23/12C08L23/14C08L2023/42C08L2205/02C08L2205/025C08L2205/03C08L2314/06C08L2666/06C08L2666/02
    • This invention relates to a molded article comprising a heterogeneous blend comprising: 1) from 60 to 99 weight percent of one or more semi-crystalline polymers (based upon the weight of the semi-crystalline and semi-amorphous polymers), each semi-crystalline polymer comprising propylene and from 0 to 5 weight alpha-olefin comonomer (based upon the weight of the polymer), said semi­crystalline polymers each having a melting point between 100 and 170°C and a melt flow rate of 200 dg/min or less; and 2) from 1 to 40 weight % of one or more semi-amorphous polymers (based upon the weight of the semi-crystalline and semi-amorphous polymers), each semi-amorphous polymer comprising propylene and from 10 to 25 weight % of one or more C2 and/or C4 to C 10 alpha-olefin comonomers, said semi-amorphous polymers each having : a) a heat of fusion of 4 to 70 J/g; and b) a melt flow rate of 0.1 to 200 dg/min; and c) an intermolecular compositional distribution as determined by thermal fractionation in hexane such that 85% by weight or more of the polymer is isolated as one or two adjacent, soluble fractions with the balance of the polymer in immediately preceding or succeeding fractions; and wherein each of these fractions has a wt% comonomer content with a difference of no greater than 20 wt% relative to the average wt% comonomer content of the copolymer; and d) an Mw/Mn of 1.5 to 4, and e) a propylene triad tacticity, as measured by 13 C NMR, of 75% or greater; where the blend has : i) a melt flow rate of 0.5 to 200 dg/min; and ii) less than 5 weight % filler, based upon the weight of the polymers and the filler; and iii) a permanent set of greater than 65%; and iv) a haze of 20% or less on a 1 mm injection molded chip; and the molded part has : a) a thickness of 250 µm to 10mm; and b) a notched Izod impact strength at 23°C of 80 J/m or more; and c) a notched Izod impact strength at 0°C of 27 J/m or more; and d) a 1% secant flexural modulus of 1035 MPa or lower; and e) an ultimate elongation where greater than 50°,/0 of 5 test specimens suffer no break through extension to 1000%; and f) a resistance to stress whitening of Hunter color ΔL of 15 or lower.
    • 本发明涉及包含非均相共混物的模制品,其包含:1)60至99重量%的一种或多种半结晶聚合物(基于半结晶和半无定形聚合物的重量),每个半结晶 包含丙烯和0-5重量%α-烯烃共聚单体的聚合物(基于聚合物的重量),所述半结晶聚合物各自具有100-170℃的熔点和200dg / min或更低的熔体流动速率; 和2)1至40重量%的一种或多种半无定形聚合物(基于半结晶和半无定形聚合物的重量),每种包含丙烯的半无定形聚合物和10至25重量%的一种 或更多的C 2和/或C 4至C 10α-烯烃共聚单体,所述半无定形聚合物各自具有:a)4至70J / g的熔化热; 和b)熔体流动速率为0.1至200dg / min; 和c)通过在己烷中的热分馏测定的分子间组成分布,使得85重量%或更多的聚合物作为一个或两个相邻的可溶性级分分离,其余聚合物在紧邻的前一个或后续的部分中分离; 并且其中这些级分中的每一种都具有相对于共聚物的平均重量%共聚单体含量的不大于20重量%的重量%共聚单体含量; 和d)Mw / Mn为1.5至4,e)通过13 C NMR测量的丙烯三单元组立构规整度为75%或更大; 其中共混物具有:i)熔体流动速率为0.5至200dg / min; 和ii)小于5重量%的填料,基于聚合物和填料的重量; 和iii)长达65%以上的永久性; 和iv)在1mm注射成型芯片上的雾度为20%以下; 并且成型部件具有:a)250μm至10mm的厚度; 和b)在23℃下的缺口伊佐德冲击强度为80J / m以上; 和c)0℃下的缺口伊佐德冲击强度为27J / m以上; 和d)1035MPa或更低的1%正割弯曲模量; 和e)极限伸长率,其中大于50°,/ 5的5个试样不会断裂延伸至1000%; 和f)对Hunter颜色ΔL为15以下的耐应力增白的抗性。
    • 6. 发明申请
    • FILMS FROM POLYMER BLENDS
    • 聚合物混合物膜
    • WO2006065664A1
    • 2006-06-22
    • PCT/US2005/044687
    • 2005-12-09
    • EXXONMOBIL CHEMICAL PATENTS INC.MEHTA, Aspy, K.LI, WenDATTA, SudhinIYER, Srivatsan, Srinivas
    • MEHTA, Aspy, K.LI, WenDATTA, SudhinIYER, Srivatsan, Srinivas
    • C08L23/10
    • C08L23/10C08L23/14C08L23/142C08L2205/02C08L2205/025Y10T428/249924Y10T428/31645Y10T428/31692Y10T428/31895Y10T428/31913C08L2666/06
    • This invention relates to a film comprising a heterogeneous blend of: 1) from 60 to 99 weight of the semi-crystalline and semi-amorphous polymers), each semi-crystalline polymer comprising propylene and from 0 to 5 weight % alpha-olefin comonomer (based upon the weight of the polymer), said semi-crystalline polymers each having a melting point between 100 and 170°C and a melt flow rate of 200 dg/min or less; and 2) from 1 to 40 weight % of one or more semi-amorphous polymers (based upon the weight of the semi-crystalline and semi-amorphous polymers), each semi-amorphous polymer comprising propylene and from 10 to 25 weight % of one or more C2 and or C4 to C10 alpha-olefin comonomers, said semi-amorphous polymers each having;. A)heat of fusion of 4 to 70 J/g; b) a melt flow rate of 0.1 to 200dg/min; c) an intermolecular composition distribution as determined by thermal fractionation in hexane such that 85% by weight or more of the polymer is isolated as one or two adjacent, soluble fractions with the balance of the polymer in immediately preceding or succeeding fractions; and wherein each of these fractions has a wt% comonomer content with a difference of no greater than 20 wt% relative to the average wt% comonomer content of the copolymer; d) an Mw(Mn of 1.5 to 4, e) a propylene triad tacticity, as measured by 13 C NMR, of 75% or greater; where the blend has: I) a melt flow rate of 0.5 to 100 dg/min; and ii) 0 to 5 weight % filler, based upon the weight of the polymers and the filler; and iii) a haze of 20% or less measured on a 1 mm thick injection molded chip; and iv) a permanent set of greater than 65%; and where the film is 0.1 to 25 mil (2.5 to 635 micron) thick and has: a haze of 10% or less, a 1° Secant tensile modules of 100,000 to 30, 000 psi, an Elmendorf tear in the machine direction of 45 g/mil or more, an Elmendorf tear in the transverse direction of 45 g/mil more, a total energy impact of 3 J or more; and a 45 degree gloss of 82 or more.
    • 本发明涉及包含以下的非均相共混物的膜:1)60-99重量%的半结晶和半无定形聚合物),每个半结晶聚合物包含丙烯和0-5重量%的α-烯烃共聚单体( 基于聚合物的重量),所述半结晶聚合物各自具有100-170℃的熔点和200dg / min或更低的熔体流动速率; 和2)1至40重量%的一种或多种半无定形聚合物(基于半结晶和半无定形聚合物的重量),每种包含丙烯的半无定形聚合物和10至25重量%的一种 或更多的C 2和C 4至C 10α-烯烃共聚单体,所述半无定形聚合物各自具有。 A)熔化热为4〜70J / g; b)熔体流动速率为0.1〜200dg / min; c)通过在己烷中的热分馏测定的分子间组成分布,使得85重量%或更多的聚合物作为一个或两个相邻的可溶性级分分离,其余的聚合物在紧邻的前面或后续级分中; 并且其中这些级分中的每一种都具有相对于共聚物的平均重量%共聚单体含量的不大于20重量%的重量%共聚单体含量; d)通过13 C NMR测量的Mw(Mn为1.5至4,e)丙烯三单元组立构规整度为75%或更大; 其中共混物具有:I)熔体流动速率为0.5至100dg / min; 和ii)基于聚合物和填料的重量,0-5重量%的填料; 和iii)在1mm厚的注射成型芯片上测量的雾度为20%以下; iv)长达65%以上的永久性; 并且薄膜的厚度为0.1至25密耳(2.5至635微米),雾度为10%或更低,1°切割拉伸模量为100,000至30,000psi,Elmendorf在机器方向的撕裂为45 g / mil以上,Elmendorf横向撕裂45g / mil以上,总能量冲击3J以上; 和45度光泽度为82以上。