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Results 1-10 of 1,507 for Criteria:CHEM:(FBPFZTCFMRRESA-UHFFFAOYSA-N) Office(s):all Language:en Stemming: false
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TitleCtrPubDate
Appl.NoApplicantInventorInt.Class
無水糖アルコールの製造方法
JP30.06.2014
2014513410サムヤン ジェネックス コーポレイションリュ，フン
C07B 61/00
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
B
GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
61
Other general methods

【課題】本発明は、デンプンから由来のソルビトール、マンニトールなどのヘキシトールを用いて、無水糖アルコールを製造する方法である。
【解決手段】無水糖アルコールは、分子内にヒドロキシ基が２つのジオール形態であり、プラスチック産業で主に使用できる物理的特性改良剤として利用価値が非常に高い。代表的な無水糖アルコールは、イソソルビド、イソマンニドなどがある。このような無水糖アルコールは、ＰＥＴ、ポリエステル、ポリカーボネートなどのガラス転移温度を上げることができ、強度を改善でき、生分解性の環境に優しい素材であり、バイオプラスチックの主要な素材として利用価値が高い。
【選択図】なし


Method for preparation of anhydrosugar alcohols
CN19.03.2014
201180071366.2株式会社三养吉尼克斯柳熏
C07D 493/04
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
D
HETEROCYCLIC COMPOUNDS
493
Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
02
in which the condensed system contains two hetero rings
04
Ortho-condensed systems
Disclosed is a method for the preparation of an anhydrosugar alcohol using a starch-derived hexitol such as sorbitol or mannitol. Anhydrosugar alcohol is in the form of a diol having two hydroxyl groups in the molecule thereof and has a very high utility value as a physical property modifier which can be used primarily in plastics. Representative examples of anhydrosugar alcohols include isosorbide and isomannide. These anhydrosugar alcohols are capable of increasing a glass transition temperature of and improving strength of PET, polyesters, polycarbonates, etc., and are therefore highly valuable as biodegradable environmentally-friendly bioplastics.

Method for preparation of anhydrosugar alcohols
US27.03.2014
14122512Hoon RyuHoon Ryu
C07D 493/04
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
D
HETEROCYCLIC COMPOUNDS
493
Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
02
in which the condensed system contains two hetero rings
04
Ortho-condensed systems

A method is provided for the preparation of anhydrosugar alcohols. The method involves dehydration of a hexitol with a mixed acid of a first acid and second acid, in which the first acid is sulfuric acid and the second acid is at least one sulfur-containing acid or sulfur-containing acid salt selected from the group consisting of p-toluenesulfonic acid, methanesulfonic acid, ethanesulfonic acid, benzenesulfonic acid, naphthalenesulfonic acid and aluminum sulfate. Also provided are methods for purification of the resulting product.


METHOD FOR PREPARING HIGH PURITY ANHYDROSUGAR ALCOHOLS WITH IMPROVED FLOWABILITY OF DISTILLATION RESIDUE
KR03.06.2014
1020140060098SAMYANG GENEX CORPORATION류훈
C07B 63/00
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
B
GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
63
Purification; Separation specially adapted for the purpose of recovering organic compounds; Stabilisation; Use of additives
The present invention relates to a technique for preparing an anhydrosugar alcohol using hydrogenated sugar as a raw material and, more specifically, to a method for preparing an anhydrosugar alcohol by adding an acid to hydrogenated sugar (for example, hexitol) to convert to anhydrosugar alcohol and distilling the resultant solution after the converting reaction by a thin film distiller, to a technique for preparing high purity anhydrosugar alcohols with low costs and high efficiency by improving distillation yield and subsequent purification efficiency, by putting an anti-foaming agent to a distillation residue discharge line during distillation thereby improving flowability of the distillation residues. COPYRIGHT KIPO 2014

METHOD FOR PRODUCING HIGH PURE ANHYDROSUGAR ALCOHOL WITH IMPROVED YIELD USING REFINED MATERIAL OF WASTE GENERATED FROM CRYSTALLIZATION PROCEDURE
KR01.07.2014
1020120146668SAMYANG GENEX CORPORATION류훈
C07D 493/04
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
D
HETEROCYCLIC COMPOUNDS
493
Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
02
in which the condensed system contains two hetero rings
04
Ortho-condensed systems
The present invention relates to a technique for producing anhydrosugar alcohol using hydride sugar as a raw material and, more specifically, to a method for producing high purity anhydrosugar alcohol sequentially by adding acid in hydride sugar (e.g. hexitol) in order to be converted into anhydrosugar alcohol, by distilling a converted byproduct liquid, and by crystallizing a distilled byproduct liquid. A byproduct which is obtained by refining a crystallization mother liquor generated in a crystallization step after removing a crystallization solvent from the same is (1) added in a step of crystallizing a distilled byproduct liquid or (2) added in a refining step after the crystallizing step. Accordingly, the total yield of the anhydrosugar alcohol is increased, and the amount of generated waste and treatment costs can be reduced, so that high purity anhydrosugar alcohol can be produced with low costs and high efficiency. COPYRIGHT KIPO 2014

METHOD FOR PRODUCING ANHYDROSUGAR ALCOHOL HAVING REMARKABLY REDUCED ION CONTENT AND IMPROVED COLOR PROPERTIES
KR07.02.2014
1020140005935SAMYANG GENEX CORPORATIONJUNG, YOUNG JAE
C07D 493/04
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
D
HETEROCYCLIC COMPOUNDS
493
Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
02
in which the condensed system contains two hetero rings
04
Ortho-condensed systems
The present invention relates to a method for producing an anhydrosugar alcohol having a remarkably reduced ion content and improved color properties and more specifically, to the method for producing an anhydrosugar alcohol having a remarkably reduced ion content, lowered electrical conductivity, and improved color properties by: converting a hydrogenated sugar (sugar alcohol) to an anhydrous alcohol via dehydration reaction; decolorizing distilled water that has been isolated through a distillation process using an activated carbon; and bringing the decolorized substance into contact with an ion exchange resin. COPYRIGHT KIPO 2014

METHOD FOR PRODUCING HIGH-PURITY ANHYDROSUGAR ALCOHOLS COMPRISING SINGLE DISTILLATION STEP ADOPTING COLUMN DISTILLATION FOLLOWING THIN FILM DISTILLATION
KR01.09.2014
1020130019109SAMYANG GENEX CORPORATION류훈
C07D 493/04
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
D
HETEROCYCLIC COMPOUNDS
493
Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
02
in which the condensed system contains two hetero rings
04
Ortho-condensed systems
The present invention relates to a technique for producing an anhydrosugar alcohol using a hydrogenated sugar as a raw material and, more specifically, to a low-cost, highly efficient technique for producing a high-purity anhydrosugar alcohol (in particular, isosorbide, isomannide, isoidide, etc.) having a purity of at least 99% by adding an acid to hydrogenated sugar (i.e. hexitol) to convert the same to an anhydrosugar alcohol, then distilling the resulting converted liquid in a single distillation step which adopts column distillation following thin-film distillation. COPYRIGHT KIPO 2014

PREPARATION METHOD OF ANHYDROSUGAR ALCOHOL
KR12.09.2014
1020140108844SAMYANG GENEX CORPORATION류훈
C07C 31/18
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
31
Saturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
18
Polyhydroxylic acyclic alcohols
The present invention relates to a method for manufacturing anhydrosugar alcohol and, more specifically, to a method for manufacturing anhydrosugar alcohol with greater ion content, pH, conductivity and color properties at low costs and high efficiency while maintaining 99% purity thereof, by consecutively performing a series of processes; distilling; crystallizing; decoloring ;and processing ion exchanging resin after anhydrosugar alcohol is converted via the dehydration reaction of hydrogenated sugar. COPYRIGHT KIPO 2014

METHOD FOR PREPARING ANHYDROSUGAR ALCOHOLS WITH HIGH-YIELD HAVING IMPROVED TRANSPARENCY BY USING DIFFERENT SOLVENTS IN CRYSTALLIZATION AND WASHING
KR01.09.2014
1020130019113SAMYANG GENEX CORPORATION류훈
C07D 493/04
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
D
HETEROCYCLIC COMPOUNDS
493
Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
02
in which the condensed system contains two hetero rings
04
Ortho-condensed systems
The present invention relates to a method for preparing anhydrosugar alcohols with high yield having improved transparency and, more specifically, to a method for preparing anhydrosugar alcohols with high yield having improved transparency by crystallizing a distillate obtained by dehydrating a hydrogenated sugar to convert into anhydrosugar alcohol and performing distillation by using a ketone solvent; and washing the obtained crystals with an alcohol solvent. COPYRIGHT KIPO 2014

METHOD FOR PRODUCING ANHYDROSUGAR ALCOHOLS BY SIMULTANEOUSLY CONDUCTING REACTION AND DISTILLATION IN THIN FILM DISTILLATOR
KR01.09.2014
1020130019110SAMYANG GENEX CORPORATION류훈
C07D 493/04
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
D
HETEROCYCLIC COMPOUNDS
493
Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
02
in which the condensed system contains two hetero rings
04
Ortho-condensed systems
The present invention relates to a technique for producing anhydrosugar alcohols using a hydrogenated sugar as a raw material and, more specifically, to a low cost and highly efficient technique for producing anhydrosugar alcohol, much simplified compared with a conventional method, by simultaneously conducting conversion reaction and distillation in a thin film distillator, unlike the conventional method of dehydrating the hydrogenated sugar to convert into anhydrosugar alcohol and distilling the reaction result solution. COPYRIGHT KIPO 2014

Results 1-10 of 1,507 for Criteria:CHEM:(FBPFZTCFMRRESA-UHFFFAOYSA-N) Office(s):all Language:en Stemming: false
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