Merck Patent Gmbh

Korea Ocean Research and Development Institute

Korea Institute of Ocean Science & Technology

Jin-Soon Park

Kwang-Soo Lee

Hyun-Jin Yoon

Yong-Kuk Yun

Eun-Kyu Lee

Ji-Won Jeong

Woo-Sun Park

Ki-Dai Yum

Sok-Kuh Kang

Jae-Youll Jin

Jin Hwan Ko

Heui-Seok Jin

Min-Ok Jin

Hoo-Yong Lee

Hye-Ryung Park

Ho Sup Jung

Moon Kyu Kwak

A polymerisable LC material comprising one or more di- or multireactive mesogenic compounds and one or more compounds of formula UVI, and one or more compounds of formula UVII, Further, a method for its preparation, a polymer film with improved thermal durability and UV stability obtainable from a corresponding polymerisable LC material, a method of preparation of such polymer film, and the use of such polymer film and said polymerisable LC material for optical, electro-optical, decorative or security devices.

Polymerisable liquid crystal material and polymerised liquid crystal film

The present invention relates to a liquid crystal (LC) medium comprising a polymerisable compound, to a process for its preparation, to its use for optical, electro-optical and electronic purposes, in particular in LC displays, especially in an LC display of the polymer sustained alignment (PSA) type, and to an LC display, especially a PSA display, comprising it.

Liquid-crystal medium

This invention relates to amphiphilic hydrogel particles for antifouling paint, which are environmentally friendly and in which anti-corrosion and antifouling effects can be maximized through a single coating process. The amphiphilic hydrogel particles are fabricated by encapsulating conducting polymer particles having anti-corrosion functionality with functional nanoparticles having antifouling functionality and then immobilizing the functional nanoparticles on a hydrogel matrix, whereby the conducting polymer particles contained in the functional nanoparticles are slowly and continuously released or the release rate thereof can be controlled so as to release the corresponding particles in a specific environment, ultimately maintaining long-term functionality. The conducting polymer particles contained in the amphiphilic functional nanoparticles can exhibit anti-corrosion functionality, thus maximizing anti-corrosion and antifouling effects through a single coating process.

Amphiphilic hydrogel particles for antifouling paint and method of fabricating the same

A helical turbine power generation system is configured to generate electricity by using a helical turbine and an overload prevention generator. More specifically, the helical turbine is rotatably provided in a frame so as to continuously generate a rotation force under unidirectional or multidirectional fluid flow and a step-up gear is configured to increase the rotational velocity of the helical turbine up to a level required for generating electricity. Additionally, an overload prevention generator is incorporated to generate electricity by using the rotational velocity transferred from the step-up gear thereby preventing an overload caused by a sudden increase in the rotational velocity of the turbine.

Power generation system using helical turbine

Disclosed is a helical turbine power generation system for generating electricity by using a helical turbine and a synchronous generator, the system including: a helical turbine rotatably provided in a frame so as to continuously generate rotation force under unidirectional or multidirectional fluid flow; a step-up gear for increasing a rotational velocity of the helical turbine up to a level required for generating electricity; a fluid coupling for preventing the rotational velocity increased by the step-up gear from increasing above a required velocity at a temporarily high rate of fluid flow; and a synchronous generator for generating electricity by using the rotational velocity transferred from the fluid coupling. Therefore, it is possible to reduce equipment costs and to prevent environmental pollution.

Growing community of inventors

Gyeonggi-do, South Korea

Jin-Soon Park