Honam Petrochemical Corporation

Daejeon, South Korea

Honam Petrochemical Corporation

Daejeon, South Korea
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Patent
Doobon Inc. and Honam Petrochemical Corporation | Date: 2013-11-13

The present invention relates to a flame-retardant polyolefin resin containing a blend which comprises 0.1-80wt% of piperazine metal salts or polymers thereof, 10-80.0wt% of nitrogen-containing synergists or phosphorus/nitrogen retardants, and 1-50wt% of inorganic compounds, wherein the sum of the components of the blend is 100wt%.


Provided is a method of preparing a ZSM-5 catalyst for preparing light olefins including ethylene and propylene through a catalytic cracking of a hydrocarbon mixture of C4 to C7 produced after a naphtha cracking. The method includes (a) forming a gel by aging a mixture solution including a silica precursor and an aluminum precursor; (b) adding a template possibly forming mesopores through a heat treatment, into the gel, stirring and then aging; (c) forming a solid product by crystallizing the aged mixture in step (b); and (d) heat treating the solid product to remove the template. The ZSM-5 catalyst may include micropores and mesopores and may have good physical and chemical properties along with a good pore property. The production yield of the light olefins may be increased.


The present invention relates to a catalyst composition comprising a novel transition metal compound and a preparation method for polyolefin using the same. The catalyst composition of the present invention has high catalytic activity for polymerization of olefin-based monomers and enables it to control the fine-structure characteristics of the polyolefin, such as molecular weight distribution, in a wide range, thereby easily providing a polyolefin with desired properties.


The present invention relates to a preparation method for olefin-diene copolymer that comprises polymerizing at least one olefin-based monomer and at least one diene-based monomer in the presence of a catalyst comprising a novel transition metal compound. Using the novel transition metal compound as a catalyst, the preparation method for olefin-diene copolymer according to the present invention can not only acquire high catalytic activity for copolymerization of the olefin and diene monomers to achieve high process efficiency but allow it to easily control the fine-structure characteristics of the copolymer, thereby providing an olefin-diene copolymer having desired properties with ease.


Patent
Honam Petrochemical Corporation | Date: 2012-08-15

Provided is a resin composition for coating, including: 35-65 wt% of a high-molecular weight polypropylene resin (A) having a weight average molecular weight of 100,000-300,000 and an isotactic chain molar fraction, L, of 0.30-0.70; 30-60 wt% of a low-molecular weight polypropylene resin (B) having a weight average molecular weight of 10,000-50,000 and an isotactic chain molar fraction, L, of 0.30-0.70; and 0.1-5.0 wt% of a highly crystalline, low-molecular weight polypropylene resin (C) having a weight average molecular weight of 5,000-50,000 and an isotactic chain molar fraction, L, of 0.70-0.75. The polypropylene resin composition for coating is amenable to spray coating while avoiding a need for a complicated process such as discharge treatment, flame treatment or acid treatment of a polypropylene substrate, in the absence of chlorine, and is effective for forming a coating film having excellent scratch resistance and adhesive property and showing no tagging property.


The present invention relates to a preparation method for polypropylene that comprises polymerizing a propylene monomer in the presence of a catalyst comprising a novel transition metal compound. Using the novel transition metal compound as a catalyst, the preparation method for polypropylene according to the present invention can not only acquire high catalytic activity for polymerization to achieve high efficiency of the process but allow it to easily control the fine-structure characteristics of the polymer, thereby providing polypropylene having desired properties with ease.


Patent
Honam Petrochemical Corporation | Date: 2013-02-20

The present invention relates to a supported catalyst for olefin polymerization to which a novel transition metal compound and a co-catalyst compound are bound, and a preparation method for polyolefin using the supported catalyst. The transition metal compound bound to the catalyst of the present invention provides high activity for olefin-based monomers in heterogeneous reaction as well as in homogeneous system. Particularly, a polyolefin with higher molecular weight can be prepared by using the supported catalyst containing the transition metal compound bound to a support, rather than using the novel transition metal compound in a non-supported status, or the conventional transition metal compound in a supported or non-supported status.


The present invention relates to a novel ligand derived from a tetrahydroquinoline derivative, and a transition metal compound prepared using the ligand, where an amido ligand is linked to an ortho-phenylene ligand to form a condensed ring and a 5-membered cyclic pi-ligand linked to the ortho-phenylene ligand is fused with a heterocyclic thiophene ligand. Compared with the catalysts not fused with a heterocyclic thiophene ligand, the transition metal compound of the present invention as activated with a co-catalyst has higher catalytic activity in olefin polymerization and provides a polymer with higher molecular weight.


Disclosed is a method for preparing a solid catalyst for polymerization of polypropylene. The method includes: a) reacting a magnesium halide compound with alcohol and then adding a phthalic acid compound thereto to prepare a magnesium compound solution; b) mixing an aliphatic or alicyclic hydrocarbon solvent with an aromatic hydrocarbon solvent to prepare a mixed solvent, dispersing a titanium compound in the mixed solvent, and then reacting the titanium compound dispersed with the magnesium compound solution prepared in step a), and heating to produce a support; and c) reacting the support with the titanium used before disperse in step b) compound and an electron donor to obtain a solid product. When a catalyst prepared by the present disclosure is used, polypropylene with high activity and high bulk density characteristics may be prepared.


Patent
Honam Petrochemical Corporation | Date: 2012-11-07

The present disclosure relates to a method for preparing a catalyst for polymerization of polyolefin and a catalyst for polymerization of polyolefin by using the same, and particularly, to a method for preparing a catalyst for polymerization of polyolefin, including: reacting a magnesium halide precursor solution obtained by dissolving magnesium halide in a first alcohol and a first hydrocarbon and a dialkoxy magnesium support obtained by reacting a halogen compound and a second alcohol with metal magnesium, with titanium tetrachloride and an internal electron donor in the presence of a second hydrocarbon. The present disclosure may provide a catalyst for polymerization of two-component magnesium compound supported polyolefin showing high activity by using the above-described dialkoxy magnesium supported catalyst.

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