SCG Chemicals Co.

Bang Sue, Thailand

SCG Chemicals Co.

Bang Sue, Thailand

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The present invention relates to a compound having the formula La M (OR1)b R2c Xd wherein M is a metal selected from Ti, Zr and Hf; L is a ligand selected from permethylpentalene, (hydro)permethyl-pentalene, (hydro)pentalene, cyclopentadiene, indene and ethylene- or silane-bridged indene, preferably (bis)indene; R1 is a 1-6C alkyl, substituted or unsubstituted phenyl, or a substituted or unsubstituted phenylalkylene group; R2 is Me or Et; X is halogen; a = 1 to 3, b = 1 to 3, c = 0 or 1 and d = 0, 1, 2 or 3; and dimers thereof, the use of the compound as an initiator in the polymerisation of lactide monomer and a process for producing a polylactide performed by contacting a lactide monomer with the compound.


Patent
SCG Chemicals Co. | Date: 2017-03-22

The present invention relates to a process for the oligomerisation of ethylene which comprises contacting ethylene with a transition metal- permethylpentalene complex, and a transition metal compound utilized therein.


Patent
Scg Chemicals Co. and Siam Refractory Industry Co. | Date: 2017-01-31

Titanium dioxide is used as an emissivity enhancer in high emissivity coating compositions. The titanium dioxide increases the emissivity of the high emissivity coating compositions. In certain embodiments, titanium dioxide is recovered from industrial waste sources such as catalyst containing waste streams from olefin polymerization processes or re-based sources. Titanium dioxide emissivity enhancers recovered from industrial waste sources contribute favorably to the cost of manufacturing high emissivity coating compositions containing such enhancers.


Patent
University of Oxford and SCG Chemicals Co. | Date: 2017-02-22

Novel Si-bridged metallocene catalysts of formula I defined herein are disclosed, as well as their use in olefin polymerisation reactions.


Patent
SCG Chemicals Co. | Date: 2017-02-01

Layered double hydroxides having a high surface area (at least 125 m2/g) and the formula (I) wherein M and M are different and each is a charged metal cation (and must be present), z = 1 or 2; y = 3 or 4, 0xb is 0 to 10, c = 0 to 10, X is an anion, n is the charge on the anion, and a = z(1-x)+xy-2; AMO-solvent is aqueous miscible organic solvent, may be prepared by a method which comprises a) precipitating a layered double hydroxide having the formula [Mz+1-xMy+x(OH)2]a+(Xn-)abH2O wherein M, M, z, y, x, a, b and X are as defined above from a solution containing the cations of the metals M and M and the anion Xn-; b) ageing the layered double hydroxide precipitate obtained in step a) in the original solution; c) collecting, then washing the layered double hydroxide precipitate; d) dispersing the wet layered double hydroxide in an AMO solvent so as to produce a slurry of the layered double hydroxide in the solvent; e) maintaining the dispersion obtained in step d); and f) recovering and drying the layered double hydroxide. The high surface area products have low particle size and are particularly suitable for use as catalysts, catalyst supports, sorbents and coatings.


Patent
SCG Chemicals Co. and Mitsui Chemicals Inc. | Date: 2017-06-07

The pipe articles with excellent stress crack resistance can be achieved by providing ethylene copolymer composition comprises ethylene and a C6-C10 a -olefin comonomer; the ethylene copolymer having a total density of 0.945-0.980g/cm^(3) and a MFR_(5) of 0.10-0.50 g/10 min; and the ethylene copolymer having a comonomer content of 1-5 % wt. The ethylene copolymer has M_(x)/M_(y) in the range of not less than 14.0; gpcBR in the range of from 0.20 to 0.80; and strain hardening modulus in the range of not less than 53.4.


Patent
SCG Chemicals Company Ltd and GTC Technology U.S. LLC | Date: 2017-07-12

A process for the distillative separation of ethylbenzene from a mixture comprising ethylbenzene and at least one other C8 aromatic compound, comprising introducing a feed stream comprising said mixture into a first distillation column, introducing a first stream comprising a heavy solvent above the feed stream into the first distillation column, introducing an aqueous stream below the feed stream into the first distillation column.


Patent
SCG Chemicals Company Ltd and GTC Technology U.S. LLC | Date: 2017-07-12

Process for the distillative separation of ethylbenzene from a mixture comprising ethylbenzene and at least one other C8 aromatic compound, comprising distilling said mixture in a distillation column in the presence of an extractive solvent, characterized in that the distillation column is operated at a sub-atmospheric pressure.


Patent
SCG Chemicals Co. | Date: 2016-05-31

The present invention relates to a process A process for modifying a layered double hydroxide (LDH), the process comprising, a. providing a material comprising a layered double hydroxide of formula: [M^(z+)_(1-x)M^(y+)_(x)(OH)_(2)]^(q+)(X^(n))_(q/n).bH_(2)O wherein M and M are metal cations, z is 1 or 2, x is 0.1 to 1, b is 0 to 5, y is 3 or 4, X is an anion, n is 1 to 3 and q is determined by x, y and z, b. optionally washing the material at least once with a mixture of water and a mixing solvent miscible with water, and c. washing the material obtained in step a or b at least once with at least one first solvent, the first solvent being miscible with water and having a solvent polarity P


Patent
SCG Chemicals Co. | Date: 2016-01-20

The present invention relates to a catalyst containing at least one group VIA and/or group VIIA transition metal on a solid support.

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