公开(公告)号：US20120165479A1

公开(公告)日：2012-06-28

申请号：US13324634

申请日：2011-12-13

Applicant: SeungGweon Hong ,  JaeYoung Park ,  HyeLim Kim ,  Kwang Jin Chung ,  Myung Ahn Ok

Inventor： SeungGweon Hong ,  JaeYoung Park ,  HyeLim Kim ,  Kwang Jin Chung ,  Myung Ahn Ok

IPC: C08G64/42

CPC classification number: C08G64/42 ,  C08G18/0895 ,  C08G18/2815 ,  C08G18/284 ,  C08G18/44 ,  C08G18/71 ,  C08G18/73

Abstract: Provided is a method for improving thermal stability of polypropylene carbonate and, more particularly, a method of end capping a molecular chain of polypropylene carbonate using a urethane group by adding isocyanates or diisocyanates to a polypropylene carbonate resin, which may optionally be a mixture containing tertiary polyol, so as to delay thermal degradation of the polypropylene carbonate at a high temperature, thereby securing desired thermal stability. Especially, the method capable of being easily applied to reactive extrusion after preparing the polypropylene carbonate has been proposed, thus simplifying production processes and ensuring economical advantages. Moreover, the above method does not deteriorate transparency and specific smoke density characteristics at combustion, which are advantages of the polypropylene carbonate.

Abstract translation: 提供一种提高聚碳酸丙烯酯的热稳定性的方法，特别是使用氨基甲酸酯基团向聚丙烯碳酸酯树脂中加入异氰酸酯或二异氰酸酯来封端聚丙烯碳酸酯的分子链的方法，该聚丙烯碳酸酯树脂可任选地是含有叔碳酸酯的混合物 多元醇，以便在高温下延迟聚碳酸丙烯酯的热降解，从而确保期望的热稳定性。 特别地，提出了在制备聚碳酸丙烯酯之后能够容易地应用于反应性挤出的方法，从而简化了生产工艺并确保了经济上的优点。 此外，上述方法不会降低燃烧时的透明度和特定的烟雾浓度特性，这是聚丙烯碳酸酯的优点。

公开(公告)号：US20120058346A1

公开(公告)日：2012-03-08

申请号：US13218220

申请日：2011-08-25

Applicant: Min Ho Jeon ,  Ji Eun Yoo ,  Moon Jung Choi ,  Kwang Jin Chung ,  Myung Ahn Ok

Inventor： Min Ho Jeon ,  Ji Eun Yoo ,  Moon Jung Choi ,  Kwang Jin Chung ,  Myung Ahn Ok

IPC: B32B27/36 ,  B29C47/06

CPC classification number: B32B27/08 ,  B29C47/0021 ,  B29C47/0026 ,  B29C47/0057 ,  B29C47/065 ,  B29C47/14 ,  B29C47/20 ,  B29C47/822 ,  B29L2007/00 ,  B29L2009/00 ,  B32B27/36 ,  B32B27/365 ,  B32B2250/02 ,  B32B2250/03 ,  B32B2250/244 ,  B32B2250/40 ,  B32B2307/516 ,  B32B2307/518 ,  B32B2307/7163 ,  B32B2307/736 ,  Y10T428/31507

Abstract: The present invention relates to a multilayer film coextruded from an aliphatic polycarbonate and polylactic acid-based polymer and a method for producing the same. According to the present invention, a multilayer film having excellent adhesive property can be manufactured even without a separate adhesive layer.

Abstract translation: 本发明涉及由脂肪族聚碳酸酯和聚乳酸类聚合物共挤出的多层膜及其制造方法。 根据本发明，即使没有单独的粘合剂层，也可以制造具有优异粘合性的多层膜。

公开(公告)号：US08785592B2

公开(公告)日：2014-07-22

申请号：US13226985

申请日：2011-09-07

Applicant: Ji Su Jeong ,  Sung Jae Na ,  Sujith Sudevan ,  Myung Ahn Ok ,  Yong Gyu Han ,  Kwang Jin Chung ,  Bun Yeoul Lee ,  Anish Cyriac

Inventor： Ji Su Jeong ,  Sung Jae Na ,  Sujith Sudevan ,  Myung Ahn Ok ,  Yong Gyu Han ,  Kwang Jin Chung ,  Bun Yeoul Lee ,  Anish Cyriac

IPC: C08G59/68 ,  C08G65/10 ,  C08G65/12 ,  C08G64/02 ,  C08G64/34 ,  C08G65/04 ,  C08F4/06 ,  C08F4/22

CPC classification number: C08G64/34 ,  C08G64/0216

Abstract: Provided is preparation of poly(alkylene carbonate) through alternating copolymerization of carbon dioxide and epoxide. According to the disclosure, by introducing a diepoxide compound to alternating copolymerization of carbon dioxide and epoxide compound using a metal(III) prepared with salen-type ligands containing quaternary ammonium salt as a catalyst, some of the polymer chains may be cross-linked to thus increase an average molecular weight of the copolymer and extend a distribution of molecular weight. A resin prepared according to this method may have high mechanical strength and rheological advantages.

Abstract translation: 提供通过二氧化碳和环氧化物的交替共聚制备聚（碳酸亚烷基酯）。 根据公开内容，通过使用由含有季铵盐的salen型配体制备的金属（III）作为催化剂，通过引入二环氧化合物以使二氧化碳和环氧化合物的交替共聚，一些聚合物链可以与 从而增加共聚物的平均分子量并延长分子量的分布。 根据该方法制备的树脂可具有高的机械强度和流变学优点。

公开(公告)号：US08568636B2

公开(公告)日：2013-10-29

申请号：US13218220

申请日：2011-08-25

Applicant: Min Ho Jeon ,  Ji Eun Yoo ,  Moon Jung Choi ,  Kwang Jin Chung ,  Myung Ahn Ok

Inventor： Min Ho Jeon ,  Ji Eun Yoo ,  Moon Jung Choi ,  Kwang Jin Chung ,  Myung Ahn Ok

IPC: B29C47/06

CPC classification number: B32B27/08 ,  B29C47/0021 ,  B29C47/0026 ,  B29C47/0057 ,  B29C47/065 ,  B29C47/14 ,  B29C47/20 ,  B29C47/822 ,  B29L2007/00 ,  B29L2009/00 ,  B32B27/36 ,  B32B27/365 ,  B32B2250/02 ,  B32B2250/03 ,  B32B2250/244 ,  B32B2250/40 ,  B32B2307/516 ,  B32B2307/518 ,  B32B2307/7163 ,  B32B2307/736 ,  Y10T428/31507

Abstract: The present invention relates to a multilayer film coextruded from an aliphatic polycarbonate and polylactic acid-based polymer and a method for producing the same. According to the present invention, a multilayer film having excellent adhesive property can be manufactured even without a separate adhesive layer.

Abstract translation: 本发明涉及由脂肪族聚碳酸酯和聚乳酸类聚合物共挤出的多层膜及其制造方法。 根据本发明，即使没有单独的粘合剂层，也可以制造具有优异粘合性的多层膜。

公开(公告)号：US08376537B2

公开(公告)日：2013-02-19

申请号：US13213470

申请日：2011-08-19

Applicant: SeungGweon Hong ,  JaeYoung Park ,  HyeLim Kim ,  Kwang Jin Chung ,  Myung Ahn Ok

Inventor： SeungGweon Hong ,  JaeYoung Park ,  HyeLim Kim ,  Kwang Jin Chung ,  Myung Ahn Ok

IPC: C09D11/10

CPC classification number: C09D11/03 ,  C09D11/10 ,  C09D11/34

Abstract: Provided is an eco-friendly rotogravure hot melt ink composition. More specifically, the present invention provides the rotogravure hot melt ink composition meeting requirements of a carbon footprint system by using, as a vehicle, poly propylene carbonate prepared using carbon dioxide as a raw material. The rotogravure hot melt ink prepared by the composition of the present invention has a higher printing density and more easily performs printing at low temperature than a poly vinyl acetate based hot melt ink according to the related art.

Abstract translation: 提供了一种环保型凹版印刷热熔油墨组合物。 更具体地说，本发明通过使用以二氧化碳为原料制备的聚碳酸丙烯酯作为载体，提供了满足碳足迹系统要求的轮转凹版热熔墨组合物。 通过本发明的组合物制备的轮转凹版热熔油墨具有更高的印刷密度，并且在相对于现有技术的聚乙酸乙烯酯基热熔性油墨的低温下更容易进行印刷。