摘要:
A composition having excellent transparency, flexibility, rubber elasticity, thermal resistance, impact resistance, abrasion resistance and the like, a composition having excellent rigidity and impact resistance as well as excellently balanced in whitening resistance, abrasion resistance and heat sealability, and a composition having excellent rubbery properties, thermal resistance, abrasion resistance and flexibility are provided.A composition comprising a specific propylene•α-olefin copolymer for which, in a signal chart measured by 13C-NMR and predetermined such that the peak present at the highest magnetic field among the signals originating from CH (methine) of the constituent unit derived from an α-olefin having 4 to 20 carbon atoms is to be at 34.4 ppm, an absorption intensity A at about 22.0 to 20.9 ppm and an absorption intensity B at about 19.0 to 20.6 ppm satisfy the following relational expressions (i) and (ii) with respect to an absorption intensity C at about 19.0 to 22.0 ppm, which is assignable to propylene methyl: (A/C)×100≦8 (i), and (B/C)×100≧60 (ii), a molded product thereof, and the α-olefin-based copolymer are provided.
摘要:
The propylene-based polymer composition of the present invention includes 41 to 95 parts by weight of a propylene-based polymer (A) having a Tm measured by DSC of not less than 120° C. and not more than 170° C., and 59 to 5 parts by weight (provided that the total of (A) and (B) is 100 parts by weight) of a propylene/ethylene/α-olefin copolymer (B) that contains 84.0 to 60.0 mol % of constitutional units derived from propylene, 15.0 to 30.0 mol % of constitutional units derived from ethylene, and 1.0 to 10.0 mol % of constitutional units derived from an α-olefin having 4 to 20 carbon atoms and has a B-value of not less than 0.9 and not more than 1.5. This polymer composition is excellent in transparency, low-temperature impact resistance, and mechanical properties (flexibility or rigidity, etc.) and also excellent in heat resistance.
摘要:
The propylene-based polymer composition of the present invention includes 41 to 95 parts by weight of a propylene-based polymer (A) having a Tm measured by DSC of not less than 120° C. and not more than 170° C., and 59 to 5 parts by weight (provided that the total of (A) and (B) is 100 parts by weight) of a propylene/ethylene/α-olefin copolymer (B) that contains 84.0 to 60.0 mol % of constitutional units derived from propylene, 15.0 to 30.0 mol % of constitutional units derived from ethylene, and 1.0 to 10.0 mol % of constitutional units derived from an α-olefin having 4 to 20 carbon atoms and has a B-value of not less than 0.9 and not more than 1.5. This polymer composition is excellent in transparency, low-temperature impact resistance, and mechanical properties (flexibility or rigidity, etc.) and also excellent in heat resistance.
摘要:
A catalyst for olefin polymerization, comprising: (A-1) a bridged metallocene compound represented by the following Formula [1-1], and (b) at least one compound selected from: (b-1) an organoaluminum oxy compound, (b-2) a compound which forms an ion pair, and (b-3) an organoaluminum compound: wherein in Formula [1-1], R1, R2, R3, R4, R5, R8, R9, and R12 are each selected from a hydrogen, a hydrocarbon group and a silicon-containing group; the four groups of R6, R7, R10, and R11 are not hydrogen atoms, and are each selected from a hydrocarbon group or a silicon-containing group; R13 and R14 are each a hydrocarbon group or the like, excluding a hydrogen atom and a methyl group; M is Ti, Zr or the like; Y is carbon or the like; Q is a halogen or the like; and j is an integer from 1
摘要翻译:一种用于烯烃聚合的催化剂,包括:(A-1)由下式[1-1]表示的桥连金属茂化合物和(b)至少一种选自:(b-1)有机铝氧化合物,( b-2)形成离子对的化合物和(b-3)有机铝化合物:其中在式[1-1]中,R 1,R 2, R 3,R 4,R 5,R 8,R 9, 和R 12各自选自氢,烃基和含硅基团; R 6,R 7,R 10和R 11的四个基团不是氢原子,并且 各自选自烃基或含硅基团; R 13和R 14各自为烃基等,不包括氢原子和甲基; M是Ti,Zr等; Y是碳等; Q是卤素等; 并且j是1的整数
摘要:
A composition having excellent transparency, flexibility, rubber elasticity, thermal resistance, impact resistance, abrasion resistance and the like, a composition having excellent rigidity and impact resistance as well as excellently balanced in whitening resistance, abrasion resistance and heat sealability, and a composition having excellent rubbery properties, thermal resistance, abrasion resistance and flexibility are provided. A composition comprising a specific propylene•α-olefin copolymer for which, in a signal chart measured by 13C-NMR and predetermined such that the peak present at the highest magnetic field among the signals originating from CH (methine) of the constituent unit derived from an α-olefin having 4 to 20 carbon atoms is to be at 34.4 ppm, an absorption intensity A at about 22.0 to 20.9 ppm and an absorption intensity B at about 19.0 to 20.6 ppm satisfy the following relational expressions (i) and (ii) with respect to an absorption intensity C at about 19.0 to 22.0 ppm, which is assignable to propylene methyl: (A/C)×100≦8 (i), and (B/C)×100≧60 (ii), a molded product thereof, and the α-olefin-based copolymer are provided.
摘要:
A catalyst for olefin polymerization, comprising: (A-1) a bridged metallocene compound represented by the following Formula [1-1], and (b) at least one compound selected from: (b-1) an organoaluminum oxy compound, (b-2) a compound which forms an ion pair, and (b-3) an organoaluminum compound: wherein in Formula [1-1], R1, R2, R3, R4, R5, R8, R9, and R12 are each selected from a hydrogen, a hydrocarbon group and a silicon-containing group; the four groups of R6, R7, R10, and R11 are not hydrogen atoms, and are each selected from a hydrocarbon group or a silicon-containing group; R13 and R14 are each a hydrocarbon group or the like, excluding a hydrogen atom and a methyl group; M is Ti, Zr or the like; Y is carbon or the like; Q is a halogen or the like; and j is an integer from 1 to 4.
摘要:
It is an object of the present invention to provide a process for producing a syndiotactic propylene polymer with high polymerization activity and high efficiency by a solution polymerization method without deposition of polymers (excluding a white state), and a production process capable of conducting the above production continuously, provided that these processes could not be attained conventionally.The present invention is: a process for producing a syndiotactic propylene polymer having a syndiotactic pentad fraction (rrrr fraction), as measured by 13C-NMR, of at least 85%, a melting point (Tm), as measured by DSC, of from 145° C. to 170° C., and an intrinsic viscosity [η] of 0.1 to 10 dl/g, which process comprises a step (P1) of solution polymerizing propylene singly or propylene and at least one monomer selected from ethylene and an α-olefin having 4 to 10 carbon atoms at a polymerization temperature (TR) of from 30° C. to 250° C. in an inert hydrocarbon solvent in the presence of an olefin polymerization catalyst which comprises; (A) a bridged metallocene compound represented by the following formula (I), and (B) at least one compound selected from (b-1) an organoaluminum oxy compound, (b-2) a compound capable of forming an ion pair by reacting with the metallocene compound (A), and (b-3) an organoaluminum compound. in which M is a titanium atom or the like, Q is a halogen atom or the like, j is an integer of 1 to 4, Ra and Rb may be identically or differently a single nuclear or polynuclear hydrocarbon residue capable of forming a sandwich structure together with M, Y is a carbon atom or a silicon atom, and Rc and Rd may be the same or different from each other, is selected from hydrogen, a hydrocarbon group and a silicon atom-containing group and further may be bonded each other to form a ring.
摘要:
Disclosed is a method for producing a syndiotactic propylene polymer having a syndiotactic pentad fraction (rrrr fraction) of not less than 85%, a melting point (Tm) within the range of 145-170° C. and a limiting viscosity [η] within the range of 0.1-10 dl/g by a solution polymerization method using a group 4 crosslinked metallocene compound, which is not accompanied by precipitation of a polymer (excluding white turbidity). Also disclosed is a production method which enables to continuously perform such a production.