Lg Chem, Ltd

Mca Co., Ltd.

Electronics and Telecommunications Research Institute

Hyun Ju Cho

Seung Young Park

Sung-Kyoung Kim

Hyun Min Kim

Suk Ky Chang

Jin-Hwa Seo

Hyeon Sik Choi

Jang Soon Kim

Yong Hee An

Jung Min Sohn

Seong Kyun Kang

No Ma Kim

Jin Woo Lee

Yun Ki Cho

Dong Jo Ryu

Hyo Sook Joo

Jun Wye Lee

Jeong Nyeo Kim

Bo Hyun Seong

Doo Ho Choi

Dong Kwon Lee

You Sung Kang

Jung Sup Han

Yong-Je Choi

Seung-young Park

Yong Su Park

Jong Won Lee

Ju Han Kim

Jong-Ku Lee

Hyo Soon Park

Kum Hyoung Lee

Woo Sung Hwang

Yoon Jung Kim

Dong Han Kho

Kyunghee Oh

Taesung Kim

Jong Wan Hong

Sung Jong Seo

Kwang Hyon Kim

Taek Jun Jung

An Na Lee

Jeong Yong Cho

Boo-Ho Seo

Jin Hwa Seo

Yoon Jung Baek

Jae-Ryoon Kim

Jung Eun Yeo

Jine Young Lee

The an adhesive composition characterized in that the kisstack, which is defined as the force measured when a sheet coated with the adhesive composition is instantaneously peeled off after being attached, is about 6 N/inch or higher. The composition not only has excellent loop tack but also exhibits high kisstack characteristics, and thus can be widely used for various substrates.

Adhesive composition having excellent kisstack

The present disclosure relates to a multilayer film including polyalkylene carbonate, and more particularly to a multilayer film including a core layer prepared by blending polyalkylene carbonate and an ethylene vinyl acetate copolymer in a predetermined ratio, and an outer layer of polyolefin. The multilayer film does not have delamination behavior because two layers are adhered each other with a simple process without an additional step for introducing an oxygen-barrier layer even without adhesive or tie layers, and has an excellent oxygen barrier property. In addition, since an additional process for imparting barrier properties and a separate adhesive or tie layer are not required in the manufacturing method, the cost can be reduced and the layer structure can be simplified, which may greatly reduce the manufacturing cost.

Multilayer film comprising polyalkylene carbonate and manufacturing method of the same

The disclosed relates to a polyalkylene carbonate-based resin film. More specifically, the present disclosure relates to a polyalkylene carbonate resin-based film comprising a blend resin in which a polyalkylene carbonate resin and a polyketone resin are mixed in a specified amount, thereby ensuring both excellent tensile strength and tear strength without deteriorating elongation properties possessed by the polyalkylene carbonate resin.

Polyalkylene carbonate-based resin film

Provided are a poly(alkylene carbonate) resin composition having improved mechanical properties, heat resistance, and processability, a preparation method of the poly(alkylene carbonate) resin composition, a molded article formed by using the composition, and a preparation method of the molded article, in which the poly(alkylene carbonate) resin composition includes poly(alkylene carbonate) having a weight average molecular weight of 100,000 g/mol to 500,000 g/mol and polyamide having a melting point of 180&#xb0; C. to 194&#xb0; C. at a weight ratio of 95:5 to 75:25.

Poly(alkylene carbonate) resin composition, preparation method thereof, molded article formed therefrom, and preparation method of molded article using the same

The present disclosure relates to an economical method of preparing a resin composition including a polyalkylene carbonate with improved thermal stability and processability. More specifically, the method of preparing a resin composition includes the steps of polymerizing carbon dioxide and an epoxide compound in the presence of a zinc-based catalyst and a solvent, recovering monomers, removing the catalyst and recovering raw materials, solution-blending with a thermostable resin to improve the thermal stability and processability, and removing the solvent and byproducts from the reaction mixture by using an agitated flash drum and an extrusion or kneader-type devolatilizer.

Economical method of preparing a resin composition including polyalkylene carbonate with improved thermal stability and processability

The present invention relates to a synthetic clay composition which does not harden and thus can be repeatedly shaped without water while maintaining the shape for a long time and, particularly, to a novel synthetic clay composition and a method for preparing the same. The synthetic clay composition is soluble in water, and thus can be easily washed and is highly safe for the human body. Further, the synthetic clay composition is light and can be repeatedly newly shaped as desired. In addition, the synthetic clay composition has an excellent ability to maintain a shape, and thus can maintain the same shape in an agglomerated form for a long time, and can be used for play such as throwing.

Synthetic clay composition containing hollow sphere and method for preparing the same

The present invention relates to a production method of polyalkylene carbonate particles capable of precipitating and separating resin particles from a polyalkylene carbonate suspension obtained through polymerization of an epoxide and carbon dioxide. According to the present invention, the production method is capable of obtaining a polyalkylene carbonate resin having excellent workability with a high yield and a low energy cost while reducing a scale of a facility, a processing time, and a wastewater amount, as compared to conventional methods such as a flash separation method.

Production method of poly(alkylene carbonate) particles

The present disclosure relates to an organic zinc catalyst suppressing agglomeration among catalyst particles during a manufacturing method to have more uniform and finer particle size, thereby showing a more improved activity in a polymerization process for manufacturing a polyalkylene carbonate resin, a manufacturing method thereof, and a manufacturing method of a polyalkylene carbonate resin using the same, wherein the organic zinc catalyst is a zinc dicarboxylate-based organic zinc catalyst used for a reaction in which a polyalkylene carbonate resin is manufactured from carbon dioxide and epoxide and includes a monocarboxylic acid-derived moiety having a C3-C15 aliphatic hydrocarbon group (provided that at least one oxygen or carbonyl group is included or not included in the aliphatic hydrocarbon group) that is bonded to an end of at least one side of the zinc dicarboxylate-based organic zinc catalyst.

Organic zinc catalyst, and manufacturing method thereof and manufacturing method of polyalkylene carbonate resin using the same (as amended)

An organic zinc catalyst and a preparation method thereof are provided. According to the present invention, the organic zinc catalyst has a smaller thickness and a larger surface area to exhibit more improved activity in polymerization for the preparation of a poly(alkylene carbonate) resin.

Organic zinc catalyst and preparation method thereof

The present invention relates to a manufacturing method of an organic zinc catalyst having more uniform and finer particle size and showing a more improved activity in a polymerization process for manufacturing a polyalkylene carbonate resin, and a manufacturing method of the polyalkylene carbonate resin using the organic zinc catalyst obtained by the manufacturing method of the organic zinc catalyst, the manufacturing method of an organic zinc catalyst including: forming a zinc dicarboxylate-based catalyst by reacting a zinc precursor with C3-C20 dicarboxylic acid, wherein the reaction step is performed under a condition in which the number of moles of the dicarboxylic acid is more than that of the zinc precursor in a reaction system, throughout the entire reaction step.

Manufacturing method of organic zinc catalyst and manufacturing method of polyalkylene carbonate resin

The present invention relates to a manufacturing method of a polyalkylene carbonate resin capable of suppressing agglomeration among catalyst particles during polymerization to maintain an excellent catalytic activity in a polymerization process,

Manufacturing method of polyalkylene carbonate resin

This disclosure relates to a resin composition that comprises polyalkylene carbonate, polylactide, polyalkyl(meth)acrylate, and cellulose, and has excellent biodegradability and mechanical properties, and yet, exhibits excellent thermal stability. Thus, the resin composition according to the present invention may be used in various application fields such as various films, sheets, disposable products, electronic goods, and interior material for automobiles.

Resin composition comprising polyalkylene carbonate

The present invention relates to a polyalkylene carbonate-based resin film and a manufacturing method thereof. The polyalkylene carbonate-based resin film according to the present invention has biodegradability and complete combustion decomposability to show environment-friendly feature and rubber-like properties. Therefore, the resin film can be applied to various resin molded products requiring elasticity, and in particular, preferably applied to resin molded products such as disposable groves, disposable containers, and disposable rubber molded products.

Resin film based polyalkylene carbonate and method for preparing the same

The present invention relates to an emulsion composition for manufacturing a polyalkylene carbonate molded product and a molded product manufactured by using the same. The emulsion composition according to the present invention provides a resin molded product that has biodegradability and complete combustion decomposability to show environment-friendly feature and rubber-like properties.

Polyalkylene carbonate molded product manufactured by using an emulsion composition

An air clay and a method of manufacturing the same are disclosed. In one embodiment, the method includes i) selecting at least one raw material from a group consisting of sand powder, shell powder, crop powder and a mixture thereof, ii) finely grinding the raw material to prepare a base material having a particle diameter of about 0.02 mm to about 0.2 mm, iii) adding about 10 wt. parts to about 30 wt. parts of glycerin to about 100 wt. parts of the base material, iv) mixing and kneading these materials together to form a paste and v) adding about 0.1 wt. parts to about 9 wt. parts of a liquid coagulating agent for water treatment to the paste and mixing these materials together. According to one embodiment, the clay is useful for various types of play and learning for infants and young children.

Air clay and method of manufacturing the same

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Daejeon, South Korea

Hyun Ju Cho