公开(公告)号：US20040016903A1

公开(公告)日：2004-01-29

申请号：US10205291

申请日：2002-07-24

Applicant: Korea Institute of Science and Technology

Inventor： Byung-Gwon Lee ,  Jong-Sung Lim ,  Sang Deuk Lee ,  Chang-Nyeon Kim

IPC: F25D001/00 ,  C09K005/00

CPC classification number: C09K5/045 ,  C09K2205/12 ,  C09K2205/22 ,  C09K2205/43

Abstract: A refrigerant composition that can be a substitute for chlorodifluoromethane (HCFC-22) comprises: (a) a first constituent of difluoromethane, (b) a second constituent of 1,1,1-trifluoroethane, (c) a third constituent of 1,1-difluoroethane, and (d) a fourth constituent selected from the group consisting of 1,1,1,2,3,3,3-heptafluoropropane, isobutane, 1,1,1,2,3,3-hexafluropropane and butane.

Abstract translation: 可以代替氯二氟甲烷（HCFC-22）的制冷剂组合物包括：（a）二氟甲烷的第一组分，（b）1,1,1-三氟乙烷的第二组分，（c）1的第三组分， 和（d）选自1,1,1,2,3,3,3-七氟丙烷，异丁烷，1,1,1,2,3,3-六氟丙烷和丁烷的第四组分 。

公开(公告)号：US20030099565A1

公开(公告)日：2003-05-29

申请号：US10268031

申请日：2002-10-09

Applicant: Korea Institute of Science and Technology

Inventor： Jong-Sung Lim ,  Youn-Woo Lee ,  Jae-Duck Kim ,  Yong-Ho Kim

IPC: B22F003/02

CPC classification number: B22F3/225 ,  B22F3/1025 ,  B22F2998/00 ,  B22F2999/00 ,  C04B35/63 ,  C04B35/632 ,  C04B35/634 ,  C04B35/63408 ,  C04B35/638 ,  C04B2235/3847 ,  C04B2235/405 ,  C04B2235/5436 ,  C04B2235/6022 ,  B22F2202/03 ,  B22F2201/04

Abstract: In a method for removing a wax material from a molded part, to remove a major binder, waxes, from a molded part fabricated by a powder injection molding method or a compression molding method, a supercritical mixed fluid of carbon dioxide and propane is used as a dewaxing solvent.

Abstract translation: 在从模制部件去除蜡材料的方法中，为了从通过粉末注射成型法或压缩成型法制造的模制部件中除去主要粘合剂蜡，使用二氧化碳和丙烷的超临界混合流体作为 脱蜡溶剂。

公开(公告)号：US20030001132A1

公开(公告)日：2003-01-02

申请号：US10076725

申请日：2002-02-13

Applicant: Korea Institute of Science and Technology

Inventor： Byung-Gwon Lee ,  Jong-Sung Lim ,  Hong-Gon Kim ,  Chang-Nyeon Kim

IPC: F25D001/00 ,  C09K005/00

CPC classification number: C09K5/045 ,  C09K2205/12 ,  C09K2205/43

Abstract: The present invention relates to a refrigerant composition of four-constituent system, comprising: (a) a first constituent of difluoromethane, (b) a second constituent of 1,1,1,2,3,3,3-heptafluoropropane, (c) a third constituent selected from the group consisting of 1,1,1,2-tetrafluoroethane and 1,1-difluoroethane and (d) a for the constituent selected from the group consisting of isobutane, 1,1,1,2,3,3,-hexafluoropropane and butane, useful as a substitute for chlorodifluoromethane (HCFC-22).

Abstract translation: 本发明涉及四组分体系的制冷剂组合物，其包含：（a）二氟甲烷的第一组分，（b）1,1,1,2,3,3,3-七氟丙烷的第二组分，（c ）选自由1,1,1,2-四氟乙烷和1,1-二氟乙烷组成的组的第三组分和（d）a选自异丁烷，1,1,1,2,3 ，3,6-六氟丙烷和丁烷，可用作氯代二氟甲烷（HCFC-22）的替代物。

公开(公告)号：US20040072985A1

公开(公告)日：2004-04-15

申请号：US10682760

申请日：2003-10-08

Applicant: Korea Institute of Science and Technology

Inventor： Youn-Woo Lee ,  Soo Hyun Kim ,  Young Ha Kim ,  Jong-Sung Lim ,  Jong Min Park ,  Ji Won Pack

IPC: C08G063/08

CPC classification number: C08G63/64 ,  C08G63/08 ,  C08G63/6882 ,  C08G63/81 ,  C08G63/823 ,  Y02P20/544 ,  Y10T428/2982

Abstract: In polymerizing biodegradable polymer material, a compressed gas is used as a reaction solvent for a solution-polymerization, in order to prepare biodegradable polyester homopolymer and copolymer with a high molecular weight in a fine powder form with a particle size of 0.01null1000 nullm.

Abstract translation: 在聚合可生物降解的聚合物材料中，使用压缩气体作为溶液聚合的反应溶剂，以制备具有0.01〜1000μm的粒度的细粉末状的高分子量的可生物降解的聚酯均聚物和共聚物。

公开(公告)号：US20040016902A1

公开(公告)日：2004-01-29

申请号：US10205264

申请日：2002-07-24

Applicant: Korea Institute of Science and Technology

Inventor： Byung-Gwon Lee ,  Jong-Sung Lim ,  Hoon Sik Kim ,  Chang-Nyeon Kim

IPC: F25D001/00 ,  C09K005/00

CPC classification number: C09K5/045 ,  C09K2205/12 ,  C09K2205/22 ,  C09K2205/43

Abstract: A refrigerant composition that can be a substitute for chlorodifluoromethane (HCFC-22) comprises: (a) a first constituent of difluoromethane, (b) a second constituent of 1,1,1-trifluoroethane, (c) a third constituent of 1,1,1,2,3,3,3-heptafluoropropane and (d) a fourth constituent selected from the group consisting of isobutane, 1,1,1,2,3,3-hexafluropropane and butane; or comprises: (a) a first constituent of difluoromethane, (b) a second constituent of 1,1,1,2-tetrafluoroethane, (c) a third constituent of 1,1,-difluoroethane, and (d) a fourth constituent selected from the group consisting of 1,1,1,2,3,3,3-heptafluoropropane, 1,1,1,2,3,3-hexafluropropane and butane.