Ptt Global Chemical Public Company Limited

Chulalongkorn University

Ptt Global Chemical Pcl

Chaya Chandavasu

Sutheerawat Samingprai

Anucha Euapermkiati

Phatthanon Prasitchoke

Nared Phetrak

Tienkul Kangwanwong

Onteera Yenjitrattanawalee

Montree Pleekhunt

Artiwan Shotipruk

Nilubon Jong-Anurakkun

Panatpong Boonnoun

Worawat Chuencheep

Wasana Jamsak

Pattiya Suttipitakwong

Phathanon Prasitchoke

The present invention disclosed a bio-based polymer additive, its preparation process and a biodegradable polymer composition comprising the said bio-based polymer additive for use in manufacturing of biodegradable plastic. The said additive is prepared from the biomass of broken microorganism cell such as microalgae, yeast or other microorganisms. In particular, the bio-based polymer additive is for enhancing rheological properties and/or biodegradability of a polymer. In particular, the additive is for use as a pigment.

Bio-based polymer additive, a process for preparing the bio-based polymer additive and a biodegradable polymer composition comprising said bio-based polymer additive

An aspect of the present invention is a preparation of a magnesium halide support for using as a composition of a catalyst in an olefin polymerization, wherein the magnesium halide support is a solid substance prepared by an aliphatic alcohol non-ionic surfactant, preferably is ethoxylated aliphatic alcohol. Another aspect of the present invention is a method for the preparation of the magnesium halide support for using as the composition of the catalyst in the olefin polymerization comprising the following steps: (a) adding a magnesium halide compound into an organic solvent, and heating; (b) cooling down the mixture from (a) rapidly to the room temperature or lower in the inert organic solvent and the aliphatic alcohol non-ionic surfactant; and (c) washing the magnesium halide with the anhydrous inert organic solvent, and drying, wherein the aliphatic alcohol non-ionic surfactant is ethoxylated aliphatic alcohol.

Magnesium halide support for use as a composition of a catalyst for the olefin polymerization, and method of preparation of the magnesium halide support

The present invention relates to a high activity olefin polymerization catalyst comprising a boron-containing silica support and the preparation thereof. This invention is characterized in that the support is heat treated in combination with a chemical treatment using a boron compound. The boron compound used in the chemical treatment of this invention is boron halide, preferably boron trichloride. The catalyst of this invention has the weight of boron comparing with the support is 0.5 to 0.7% and has the weight of the boron relative to the catalyst of 0.1 to 0.5%. The catalyst of this invention has chemical compositions comprising:&#x2014;Boron 0.1-0.5% wt;&#x2014;Titanium 4-6% wt;&#x2014;Magnesium 2-6% wt;&#x2014;Chloride 15-25% wt.

High activity olefin polymerization catalyst compromising boron-containing silica support and the preparation thereof

The present invention provides the new method for extracting lutein from natural materials wherein the said method comprises of modification of natural lutein ester in the natural materials to free lutein and/or low molecular weight lutein ester, extraction of the said natural materials with supercritical fluid at the optimal conditions. The said method yields high amount of crude lutein with high purity due to the mild condition used for extraction. Therefore, no degradation of the desired product is occurred. The crude lutein can be further purified with chromatography in order to obtain the highly purified lutein. The method according to this invention can be applied to the extraction of xanthophylls or others beside lutein.

Method of extracting lutein/xanthophylls from natural materials and highly purified lutein/xanthophylls obtained from the method thereof

Device for preparing and transferring reaction mixture

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Bangkok, Thailand

Chaya Chandavasu