公开(公告)号：US10053589B2

公开(公告)日：2018-08-21

申请号：US14952989

申请日：2015-11-26

Applicant: POSTECH ACADEMY-INDUSTRY FOUNDATION

Inventor： Dong Soo Hwang ,  Jin Hwa Heo ,  Dong Yeop Oh

IPC: C09D7/12 ,  C09D5/00 ,  A61L29/08 ,  A61L31/08 ,  B05D5/00 ,  C09D127/22 ,  C09D171/02 ,  C09D7/63 ,  B05D1/18

CPC classification number: C09D7/63 ,  A61L29/08 ,  A61L31/08 ,  B05D1/185 ,  B05D5/005 ,  C09D5/002 ,  C09D127/22 ,  C09D171/02

Abstract: The present invention relates to a surface treatment composition for forming a self-assembled coating layer which is easily coated and removed and a surface treatment method, where the self-assembled coating layer can be easily formed because of use of a compound having the hydroxyl groups as a diol are attached to an ortho position of a benzene ring and be removed by treatment of Al3+ or Fe3+. Thus, the surface can be reused by forming a new self-assembled coating layer, thereby making the surface treatment composition be applied to various researches and industrial fields of the self-assembly coating layer which are used for reduction in metal abrasion resistance, introduction of a chemical functional group for detecting a biomolecule, the surface hydrophilicity, introduction of an antifouling property to the surface, and the like.

公开(公告)号：US20140242870A1

公开(公告)日：2014-08-28

申请号：US14346993

申请日：2012-09-27

Applicant: POSTECH ACADEMY-INDUSTRY FOUNDATION

Inventor： Dong Soo Hwang ,  Dong Yeop Oh ,  Sang Sik Kim ,  Hyung Joon Cha

IPC: A61L27/20

CPC classification number: A61L27/20 ,  A61L27/50 ,  A61L2430/10 ,  A61L2430/12 ,  C08B37/003 ,  C08L5/08 ,  Y10T442/60

Abstract: The present invention relates to a composite including chitosan and/or chitin and a catechol-based compound, an organic reinforcing material composition including the composite, a product manufactured by using the organic reinforcing material composition, and a method for preparing a chitosan and/or chitin composite with improved strength, including the step of adding the catechol-based compound to chitosan and/or chitin. The chitosan and/or chitin composite including the catechol-based compound is advantageous in that it is able to maintain high strength in a wet-swollen state by improving the problem of strength reduction due to moisture, compared to the composites containing no catechol-based compound.

Abstract translation: 本发明涉及包含壳聚糖和/或壳多糖和儿茶酚类化合物的复合物，包含该复合物的有机增强材料组合物，使用有机增强材料组合物制造的产品，以及制备壳聚糖和/或 具有改善强度的几丁质复合物，包括将儿茶酚类化合物加入壳聚糖和/或壳多糖的步骤。 包含儿茶酚类化合物的壳聚糖和/或壳多糖复合物的优点在于，与不含儿茶酚类化合物的复合材料相比，通过改善由于水分引起的强度降低的问题，能够保持湿润膨胀状态下的高强度 复合。