摘要:
A copolymer of (a)ethylene and/or an &agr;-olefin, (b) a cyclic olefin and (c) an alkenyl aromatic hydrocarbon, having acyclic olefin content of 0.01 to 66 mol % and a styrene content of 3 to 99 mol %, wherein the styrene content is more than a half of the cyclic olefin content, a process for producing the copolymer with a specific catalyst and a molded article made from the copolymer. The copolymer and molded article thereof are transparent, and excellent in flexibility and heat resistance.
摘要:
A modified aluminum oxy compound(A) obtained by reacting an aluminum oxy compound(a), water (b) and a compound having a hydroxyl group(c); a polymerization catalyst component comprising the modified aluminum oxy compound; a polymerization catalyst obtained by contacting said modified aluminum oxy compound(A), a transition metal compound(B) and optionally an organoaluminum compound(C) and a specified boron compound; and a process for producing an olefin polymer or an alkenyl aromatic hydrocarbon polymer with the polymerization catalyst.
摘要:
A copolymer of ethylene and a vinyl compound (I) represented by the general formula CH2═CH—R, wherein R is a saturated hydrocarbon group, a steric parameter Es of the substituent R is from −2.77 to −1.64 and a steric parameter B1 of the substituent R is from 1.53 to 2.90, a molded article comprising the same, an adhesive comprising the same as an effective ingredient an laminate comprising the same.
摘要:
A modified aluminum oxy compound (A) obtained by reacting an aluminum oxy compound (a), water (b) and a compound having a hydroxyl group (c); a polymerization catalyst component comprising the modified aluminum oxy compound; a polymerization catalyst obtained by contacting said modified aluminum oxy compound (A), a transition metal compound (B) and optionally an organoaluminum compound (C) and a specified boron compound; and a process for producing an olefin polymer or an alkenyl aromatic hydrocarbon polymer with the polymerization catalyst.
摘要:
A copolymer of an &agr;-olefin with an alkenyl aromatic hydrocarbon having a structure in which tertiary carbon atoms are mutually separated by two methylene groups in the skeleton of the copolymer, a process for producing said copolymer with a specific catalyst and a molded article of said copolymer, and the copolymer and molded article thereof are transparent, excellent in elastic recoverability, flexibility, mechanical strength and scratch resistance.
摘要:
An &agr;-olefin-alkenyl aromatic hydrocarbon-diene copolymer, a process for producing the copolymer, which comprises copolymerizing an &agr;-olefin, a mono-alkenyl aromatic hydrocarbon and a diene in the presence of a specific catalyst, and a molded article comprising the copolymer.
摘要:
An ethylene-alkenyl aromatic compound copolymer, the copolymer having a melt viscosity &eegr;*190 at a shear rate of 100 radian/second at 190° C. of 3.0×103 to 3.0×106 poises, and a molecular weight distribution in terms of weight average molecular weight(Mw) to number average molecular weight(Mn) [Mw/Mn ] of 1.2 to 4.0, and wherein a zero-shear melt viscosity &eegr;*0 (poise) and a characteristic relaxation time &tgr;0 (second) satisfy the relation of the expression (1) below; log &tgr;0>log &eegr;*0−6.38 (1)
摘要:
A modified aluminum oxy compound (A) obtained by reacting an aluminum oxy compound (a), water (b) and a compound having a hydroxyl group (c); a polymerization catalyst component comprising the modified aluminum oxy compound; a polymerization catalyst obtained by contacting said modified aluminum oxy compound (A), a transition metal compound (B) and optionally an organoaluminum compound (C) and a specified boron compound; and a process for producing an olefin polymer or an alkenyl aromatic hydrocarbon polymer with the polymerization catalyst.
摘要:
A modified aluminum oxy compound (A) obtained by reacting an aluminum oxy compound (a), water (b) and a compound having a hydroxyl group (c); a polymerization catalyst component comprising the modified aluminum oxy compound; a polymerization catalyst obtained by contacting said modified aluminum oxy compound (A), a transition metal compound (B) and optionally an organoaluminum compound (C) and a specified boron compound; and a process for producing an olefin polymer or an alkenyl aromatic hydrocarbon polymer with the polymerization catalyst.
摘要:
A copolymer of ethylene with an alkenyl aromatic hydrocarbon having a content of the alkenyl aromatic hydrocarbon in the copolymer of 0.2 to 60 mol % and a ratio ({circle around (2)}/{circle around (3)}) of the area of a peak {circle around (2)} appearing at 34.0 to 36.0 ppm to the area of a peak {circle around (3)} appearing at 36.0 to 38.0 ppm in a 13C-NMR spectrum of the copolymer of 0.01 to 0.35, and a molded article comprising the copolymer.