Daejeon, South Korea
Daejeon, South Korea

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Patent
Samyang Corporation and Korea Research Institute of Chemical Technology | Date: 2015-01-19

The present invention relates to a novel -oximester fluorene derivative compound, a photopolymerization initiator comprising the same, and a photoresist composition.


Patent
Samyang Corporation and Korea Research Institute of Chemical Technology | Date: 2016-11-23

The present invention relates to a novel -oximester fluorene derivative compound, a photopolymerization initiator comprising the same, and a photoresist composition.


Patent
Korea Research Institute of Chemical Technology and Samyang Corporation | Date: 2015-03-11

Provided are a novel fluorene oxime ester compound, and a photopolymerization initiator and a photoresist composition containing the same.


The present invention relates to a thermoplastic copolymer resin having an excellent flame retardancy and transparency and a preparation method therefor and, more particularly, to a thermoplastic copolymer resin having an excellent balance of physical properties such as a transparency, a fluidity, a low temperature impact strength as well as a flame retardancy, a preparation method therefor, and a molded article comprising the thermoplastic copolymer resin, in which the thermoplastic copolymer resin is obtained by copolymerizing polysiloxane having a particular structure and a branched polycarbonate oligomer.


The present invention relates to a polysiloxane-polycarbonate copolymer and a method of manufacturing the same. More specifically, the present invention relates to a polysiloxane-polycarbonate copolymer in which the molecular weight of the siloxane monomer constituting the copolymer is maintained in a specifically high level and thus excellent low-temperature impact resistance can be achieved even with low siloxane content, and the viscosity of the copolymer is maintained in a low level and thus flowability and moldability can be improved; and a method of manufacturing the same.


Patent
Samyang Corporation | Date: 2012-08-29

The present invention relates to a polyester resin prepared by adding an anti-hydrolysis agent to a reactant comprising an acid selected from an alkylester of aromatic dibasic acid or a mixture of an alkylester of aromatic dibasic acid and an alkylester of aliphatic dibasic acid, an aromatic diol and an aliphatic diol; and a toner produced by using the same as a binder resin.


Provided are a hydroxy-terminated siloxane, a polysiloxane-polycarbonate copolymer including same as a repeating unit, and a preparation method thereof. The hydroxyl-terminated siloxane has the structure of chemical formula 1.


The present invention relates to a thermoplastic copolymer resin having an excellent flame retardancy and transparency and a preparation method therefor and, more particularly, to a thermoplastic copolymer resin having an excellent balance of physical properties such as a transparency, a fluidity, a low temperature impact strength as well as a flame retardancy, a preparation method therefor, and a molded article comprising the thermoplastic copolymer resin, in which the thermoplastic copolymer resin is obtained by copolymerizing polysiloxane having a particular structure and a branched polycarbonate oligomer.


A psicose 3-epimerase, a polynucleotide encoding the enzyme, a recombinant vector carrying the polynucleotide, a recombinant cell harboring the recombinant vector, and use thereof are provided.


Patent
Samyang Corporation | Date: 2016-11-02

A novel the Ensifer adhaerens strain isolated from soil and a method of producing psicose using the same are provided.

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