METHOD OF PREPARING WHOLLY AROMATIC LIQUID CRYSTALLINE POLYESTER RESIN AND WHOLLY AROMATIC LIQUID CRYSTALLINE POLYESTER RESIN PREPARED BY THE METHOD, AND WHOLLY AROMATIC LIQUID CRYSTALLINE POLYESTER RESIN COMPOUND

申请公布号：KR20110082854(A)

申请号：KR20100002764

申请日期：2010.01.12

申请公布日期：2011.07.20

申请人：

SAMSUNG FINE CHEMICALS CO., LTD.

发明人：KIM, HYUN MIN;YUN, JONG HWA;KIM, MAHN JONG

分类号：C09K19/38

主分类号：C09K19/38

摘要：PURPOSE: A method for preparing a wholly aromatic liquid crystalline polyester resin is provided to increase the degree of polymerization and to avoid a separate prepolymer polymerization process since by-products and unreacted monomers are enough removed. CONSTITUTION: A method for preparing a wholly aromatic liquid crystalline polyester resin comprises: synthesizing wholly aromatic liquid crystalline polyester prepolymers through the polycondensation of at least two kinds of monomers; and removing by-products and unreacted monomers by reducing the inner pressure of the reactor including the prepolymer and additionally performing the polycondensation of the prepolymer to synthesize the wholly aromatic liquid crystalline polyester resin.

Snow plough device, and mechanical adapters for connecting it to a snow plough

FOERFARANDE OCH ANORDNING FOER INSTAELLNING AV ETT I FOERVAEG BESTAEMT FLUIDFLOEDE

GRIPANORDNING

TELESKOPROER

MAGNETIC CLUTCH

KONISKT KUGGHJULSARRANGEMANG

AUFHAENGEVORRICHTUNG FUER TRAGROHRE AN LADEBORD- WAENDEN ODER DERGLEICHEN AN KRAFTFAHRZEUGEN

GROUND COIL FOR MAGNETIC LEVITATION VEHICLE

DOCUMENT PREPARING DEVICE

FORNO DOMESTICO DI COTTURA AD INCASSO COMPLETAMENTE OCCULTABILE

APPARATO PER LA RICEZIONE DI INFORMAZIONI IN UN CANALE TELEVISIVO

SISTEMA PERFEZIONATO DI TRASMISSIONE E RICEZIONE DI INFORMAZIONI IN UNCANALE TELEVISIVO

COMPLESSO DI CASSETTE POSTALI PER LA DISTRIBUZIONE ED IL RITIRO DI POSTA IN ZONE RURALI E CASSETTA COSTITUENTE DETTO COMPLESSO

ACCOPPIATORE PER L'ACQUISIZIONE OTTICA DI DATI DA DISPLAY NUMERICI- ORSCAN (OPTICAL READER SCANNING)

REATTORE SOLARE IN GRADO DI ELIMINARE L'OSSIGENO PRESENTE NEL VAPOR ACQUEO PER CATALISI CON MATERIALE FERROSO IN FORMA GRANULARE RESO INCANDESCENTE DAL CALORE SOLARE CONCENTRATO DA DEGLI SPECCHI E' UN PROCESSO TERMOCHIMICO OSSIDORIDUTTIVO PER RICAVARE IDROGENO.

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