Abstract: The present invention relates to a process for producing ethylene glycol from ethylene oxide wherein ethylene oxide in a gas resulting from oxidation of ethylene is absorbed in a specific absorbing solution, is allowed to react with carbon dioxide, converted into ethylene carbonate, and then subjected to hydrolysis to produce ethylene glycol.According to the present invention, a large energy consuming step such as stripping of ethylene oxide and separation of excess amounts of water during the ethylene glycol production becomes unnecessary and the process can be greatly simplified by combining the ethylene oxide absorption step and the carbonation step.

Abstract: The present invention relates to a method of recovering ethylene oxide comprising the steps of:bringing a mixed gas containing ethylene oxide into contact with an absorbent so as to cause the absorbent to absorb the ethylene oxide; andstripping and separating said ethylene oxide to recover it from the absorbent, where the absorbent contains propylene carbonate. By employing the present invention, it is possible to reduce the heat recovery loss resulting from cooling the absorbent at the time of transfer from the stripping step to the absorption step, to about one-third that compared with a conventional system using water, without producing the by-product ethylene glycol.

Abstract: According to the present invention, there is provided a thermoplastic elastomer laminate which comprisesa layer comprising a thermoplastic elastomer (A) composed of a crystalline polyolefin and a rubber, anda layer comprising an ultra-high molecular weight polyolefin (B) or an ultra-high molecular weight polyolefin composition.In addition, a glass run channel composed of the thermoplastic elastomer laminate is also provided in the invention.

Abstract: The higher .alpha.-olefin copolymer of the invention is a copolymer of specific higher .alpha.-olefin, specific .alpha.,.omega.-diene and specific non-conjugated diene, and this copolymer has a specific molar ratio of the higher .alpha.-olefin to the .alpha.,.omega.-diene, a specific content of the non-conjugated diene and a specific intrinsic viscosity. This higher .alpha.-olefin copolymer can be prepared using a catalyst for olefin polymerization formed from a specific solid titanium catalyst component, an organometallic compound catalyst component and an electron donor catalyst component. The vibration-insulating rubber molded product of the invention is formed from a vulcanized product of the above-mentioned copolymer.

Abstract: According to the present invention, there is provided a thermoplastic elastomer laminate which comprisesa layer comprising a thermoplastic elastomer (A) composed of a crystalline polyolefin and a rubber, anda layer comprising an ultra-high molecular weight polyolefin (B) or an ultra-high molecular weight polyolefin composition.In addition, a glass run channel composed of the thermoplastic elastomer laminate is also provided in the invention.

Abstract: There is provided a composition comprising a higher a-olefin copolymer (1) obtained by copolymerization in the presence of a specific olefin polymerization catalyst of a specific higher .alpha.-olefin, a specific .alpha., .omega.-diene of the formula (I) and a specific non-conjugated diene of the formula (II), and a rubber (2) selected from the group consisting of a diene rubber, an ethylene/a-olefin copolymer, a nitrile rubber and a hydrogenated nitrile rubber. The composition is excellent in workability strength characteristics, weatherability, ozone resistance and dynamic fatigue resistance, as well as excellent in adhesive properties to fiber and in vibration-insulating properties and damping properties.

Abstract: According to the present invention, there is provided a thermoplastic elastomer laminate which comprisesa layer comprising a thermoplastic elastomer (A) composed of a crystalline polyolefin and a rubber, anda layer comprising an ultra-high molecular weight polyolefin (B) or an ultra-high molecular weight polyolefin composition.In addition, a glass run channel composed of the thermoplastic elastomer laminate is also provided in the invention.

Abstract: Proposed herein is a process for preparing thermoplastic elastomers, which comprises dynamically heat treating polymer particles together with a crosslinking agent, each of the polymer particles being composed of a portion comprising a crystalline olefin polymer and portions comprising an amorphous olefin polymer, the polymer particles having an average particle diameter of at least 10 .mu.m and an apparent bulk density of at least 0.2 g/ml.

Abstract: Thermoplastic elastomer compositions are prepared by feeding a mixture of (a) a peroxide crosslinking type olefin copolymer rubber, (b) a peroxide decomposition type olefin plastics and optionally, (c) a peroxide non-crosslinking type hydrocarbon rubbery substance through a hopper into a cylinder of an extrusion machine, and feeding simultaneously (d) a mineral oil type softener, or both (d) and (e) silicone oil, through an inlet provided on the cylinder separately from the hopper, thereby dynamically heat treating the resulting mixture in the presence of organic peroxide to prepare a partially crosslinked thermoplastic elastomer composition.

Abstract: A rubbery copolymer of ethylene, 1-butene and a polyene, characterized by having (A) an ethylene/1-butene mole ratio of from 86/14 to 95/5, (B) an iodine value of from 2 to 40, (C) an intrinsic viscosity [.eta.], measured in decalin at 135.degree. C., of from 0.8 to 4 dl/g, and (D) a weight average molecular weight/number average molecular weight ratio (Mw/Mn) of less than 3; and a process for the production thereof.

Abstract: A rubbery copolymer of ethylene, an .alpha.-olefin having 3 to 10 carbon atoms and a polyene, characterized by having (A) an ethylene/.alpha.-olefin mole ratio of from 50/50 to 95/5, (B) an iodine value of from 5 to 50, (C) an intrinsic viscosity [.eta.], measured in decaline at 135.degree. C., of from 1.0 to 6.0 dl/g, (D) a weight average molecular weight/number average molecular weight ratio (Mw/Mn) of from 3 to 15, and (E) an iodine value index .alpha..sub.1 for the lower molecular weight components and an iodine value index .alpha..sub.2 for the higher molecular weight components, said .alpha..sub.1 and .alpha..sub.2 falling within the ranges -30.ltoreq..alpha..sub.1 .ltoreq.0 and 0<.alpha..sub.2 .ltoreq.30. Said copolymer can be obtained by copolymerizing ethylene, the .alpha.-olefin having 3 to 10 carbon atoms and polyene at a temperature of from about 40.degree. C. to about 100.degree. C. in the presence of a catalyst composed of (a) a vanadium compound of the formula VO(OR).sub.n X.sub.