[Problem to be solved] There is provided a process for producing an olefin polymer that is capable of producing an olefin polymer having high heat resistance and high molecular weight with excellent catalytic activity. [Solution to problem] The process for producing an olefin polymer includes a step of polymerizing at least one olefin selected from ethylene and -olefins having 4 to 30 carbon atoms in the presence of an olefin polymerization catalyst containing a transition metal compound represented by the general formula [I], the olefin polymer including constituent units derived from ethylene and -olefins having 4 to 30 carbon atoms in a total amount between more than 50 mol % and not more than 100 mol %, ##STR00001## [in the formula [I], R.sup.1, R.sup.3 and R.sup.5 to R.sup.16 are each independently a hydrogen atom, a hydrocarbon group or the like; R.sup.2 is a hydrocarbon group or the like; R.sup.4 is a hydrogen atom; M is a transition metal of Group IV; Q is a halogen atom or the like; and j is an integer of 1 to 4].

[Problem to be solved] There is provided a process for producing an olefin polymer that is capable of producing an olefin polymer having high heat resistance and high molecular weight with excellent catalytic activity. [Solution to problem] The process for producing an olefin polymer includes a step of polymerizing at least one olefin selected from ethylene and -olefins having 4 to 30 carbon atoms in the presence of an olefin polymerization catalyst containing a transition metal compound represented by the general formula [I], the olefin polymer including constituent units derived from ethylene and -olefins having 4 to 30 carbon atoms in a total amount between more than 50 mol % and not more than 100 mol %, ##STR00001## [in the formula [I], R.sup.1, R.sup.3 and R.sup.5 to R.sup.16 are each independently a hydrogen atom, a hydrocarbon group or the like; R.sup.2 is a hydrocarbon group or the like; R.sup.4 is a hydrogen atom; M is a transition metal of Group IV; Q is a halogen atom or the like; and j is an integer of 1 to 4].

[Problem to be solved] There is provided a process for producing an olefin polymer that is capable of producing an olefin polymer having high heat resistance and high molecular weight with excellent catalytic activity. [Solution to problem] The process for producing an olefin polymer includes a step of polymerizing at least one olefin selected from ethylene and -olefins having 4 to 30 carbon atoms in the presence of an olefin polymerization catalyst containing a transition metal compound represented by the general formula [I], the olefin polymer including constituent units derived from ethylene and -olefins having 4 to 30 carbon atoms in a total amount between more than 50 mol % and not more than 100 mol %, ##STR00001## [in the formula [I], R.sup.1, R.sup.3 and R.sup.5 to R.sup.16 are each independently a hydrogen atom, a hydrocarbon group or the like; R.sup.2 is a hydrocarbon group or the like; R.sup.4 is a hydrogen atom; M is a transition metal of Group IV; Q is a halogen atom or the like; and j is an integer of 1 to 4].

The present invention discloses a catalytic system for preparing highly branched alkane from olefin, which contains novel nickel or palladium complexes. In the presence of the catalytic system, highly branched oily alkane mixture can be efficiently obtained from olefins (such as ethylene) under mild conditions. The alkane mixture has a low bromine number, and can be used as a processing aid(s) and lubricant base oil with high-performance. Provides also was a method for preparing the catalyst and a method for preparing an oily olefin polymer.

The present invention discloses a catalytic system for preparing highly branched alkane from olefin, which contains novel nickel or palladium complexes. In the presence of the catalytic system, highly branched oily alkane mixture can be efficiently obtained from olefins (such as ethylene) under mild conditions. The alkane mixture has a low bromine number, and can be used as a processing aid(s) and lubricant base oil with high-performance. Provides also was a method for preparing the catalyst and a method for preparing an oily olefin polymer.

The present invention discloses a catalytic system for preparing highly branched alkane from olefin, which contains novel nickel or palladium complexes. In the presence of the catalytic system, highly branched oily alkane mixture can be efficiently obtained from olefins (such as ethylene) under mild conditions. The alkane mixture has a low bromine number, and can be used as a processing aid(s) and lubricant base oil with high-performance. Provides also was a method for preparing the catalyst and a method for preparing an oily olefin polymer.

One or more 1-butene polymers and uses thereof. The 1-butene polymer may be used as a viscosity modifier, flexibilizer, dispersing aid, and/or impact modifier for polymer compositions, such as those including polypropylene. The 1-butene polymer may also be used as a carrier for additives, such as fluorinated additives. Articles may be made that include the 1-butene polymer, polypropylene, and pigments.

One or more 1-butene polymers and uses thereof. The 1-butene polymer may be used as a viscosity modifier, flexibilizer, dispersing aid, and/or impact modifier for polymer compositions, such as those including polypropylene. The 1-butene polymer may also be used as a carrier for additives, such as fluorinated additives. Articles may be made that include the 1-butene polymer, polypropylene, and pigments.

A composition for extruding or injection molding low-gloss articles exhibiting improved color retention and mechanical properties as compared with conventional pigmented or painted PVC or TPO resins includes polypropylene, a thermoplastic polyolefin elastomer in an amount sufficient to impart superior impact resistance and at least one particulate delustering agent in an amount sufficient to provide low-gloss without sacrificing impact strength.

A composition for extruding or injection molding low-gloss articles exhibiting improved color retention and mechanical properties as compared with conventional pigmented or painted PVC or TPO resins includes polypropylene, a thermoplastic polyolefin elastomer in an amount sufficient to impart superior impact resistance and at least one particulate delustering agent in an amount sufficient to provide low-gloss without sacrificing impact strength.