公开(公告)号：US20210122876A1

公开(公告)日：2021-04-29

申请号：US17007031

申请日：2020-08-31

Applicant: NAN YA PLASTICS CORPORATION

Inventor： TE-CHAO LIAO ,  SEN-HUANG HSU ,  CHUNG-CHI SU ,  CHUAN CHOU ,  Jui-Jung Lin

IPC: C08G59/50 ,  C08G59/42 ,  C08G65/00 ,  C08G65/34 ,  C08L71/08

Abstract: A curing agent and method for producing the same are provided, the method includes: esterification reaction: reacting a polyhydric alcohol with a polybasic acid anhydride to obtain an ester-based emulsifier (A); chain extension reaction: reacting an ester-based emulsifier (A) with a bifunctional epoxy resin to obtain a polymer intermediate (B); and reacting the polymer intermediate (B) with a polyamine compound to obtain a curing agent (C).

公开(公告)号：US20230159750A1

公开(公告)日：2023-05-25

申请号：US17886835

申请日：2022-08-12

Applicant: NAN YA PLASTICS CORPORATION

Inventor： TE-CHAO LIAO ,  SEN-HUANG HSU ,  CHUAN CHOU

IPC: C08L75/08 ,  C08G18/12 ,  C08G18/22 ,  C08G18/32 ,  C08G18/48 ,  C08G18/80

CPC classification number: C08L75/08 ,  C08G18/12 ,  C08G18/227 ,  C08G18/3206 ,  C08G18/4825 ,  C08G18/4829 ,  C08G18/4833 ,  C08G18/4854 ,  C08G18/807

Abstract: A polyurethane resin and a method for producing the same are provided. The method includes a first polymer forming step implemented by reacting a first polyether polyol and an isocyanate to form a first polymer, a second polymer forming step implemented by reacting the first polymer and a second polyether polyol to form a second polymer, and a blocking step implemented by adding a blocking agent into the second polymer to form the polyurethane resin. A hydroxyl functionality of the first polyether polyol is less than a hydroxyl functionality of the second polyether polyol. A usage amount ratio of a usage amount of the first polyether polyol to a usage amount of the second polyether polyol to a usage amount of the blocking agent is within a range from 35:59:6 to 27:70:3. A degree of crosslinking of the polyurethane resin is within a range from 2.2 to 2.5.

公开(公告)号：US20210139628A1

公开(公告)日：2021-05-13

申请号：US16887006

申请日：2020-05-29

Applicant: NAN YA PLASTICS CORPORATION

Inventor： TE-CHAO LIAO ,  SEN-HUANG HSU ,  CHUNG-CHI SU ,  CHUAN CHOU ,  Jui-Jung Lin

IPC: C08F283/01 ,  C09D167/00

Abstract: A curing agent composition and a curing agent coating formula thereof are provided. The curing agent composition includes 5 to 25 wt % of an ester group-containing amine end group adduct, 2 to 25 wt % of a C8-C22 hydrophobic saturated or unsaturated fatty amine, 2 to 25 wt % of a polyamine compound, 2 to 20 wt % of a silane compound, and 10 to 60 wt % of an ether solvent.