公开(公告)号：US20230073082A1

公开(公告)日：2023-03-09

申请号：US17499889

申请日：2021-10-13

Applicant: NAN YA PLASTICS CORPORATION

Inventor： Te-Chao Liao ,  Jung-Jen Chuang ,  Zhang-Jian Huang ,  Chung-Chi Su

IPC: D06M13/192 ,  B01D39/10 ,  D06M13/188 ,  C08J11/26 ,  C08J11/16

Abstract: Provided is a recycling method of polyester wool blended fabric, which includes the following. A polyester wool blended fabric containing a dye is put into an acidic aqueous solution containing an oxidizing agent for heating and soaking, so as to degrade a wool in the polyester wool blended fabric, and perform decolorization at the same time to remove the dye. After that, a polyester fabric is obtained by filtration.

公开(公告)号：US11001701B2

公开(公告)日：2021-05-11

申请号：US16597906

申请日：2019-10-10

Applicant: NAN YA PLASTICS CORPORATION

Inventor： Te-Chao Liao ,  Jung-Jen Chuang ,  Zhi-Ming Huang

IPC: C08K13/02 ,  C08K3/24 ,  C08K3/34 ,  C08L27/06 ,  C08K5/17 ,  C08K5/20

Abstract: A PVC product and a stabilizing agent thereof are provided. The stabilizing agent is composed of perchlorate, alkanolamine, and alkanolamide. The total amount of alkanolamine and alkanolamide in the stabilizing agent is 80-99 wt % of the total weight of the stabilizing agent, and the weight ratio of the total amount of alkanolamine and alkanolamide to the amount of perchlorate is 4:1 to 99:1, so that the PVC product has a lower Yellowness Index (YI) and higher transparency.

公开(公告)号：US20250154334A1

公开(公告)日：2025-05-15

申请号：US18530162

申请日：2023-12-05

Applicant: NAN YA PLASTICS CORPORATION

Inventor： Te-Chao Liao ,  Jung-Jen Chuang ,  Zhang-Jian Huang ,  Cheng Hsun Chen ,  Mong-Chen Chang

IPC: C08J11/24

Abstract: The disclosure provides a chemical recycling method for polyester fabrics, which includes the following steps. The polyester fabric is extracted using a composite solvent and filtered to obtain a decolored polyester fabric. The composite solvent contains alcohol ether and phenyl ether, and the decolored polyester fabric contains the composite solvent. Ethylene glycol is then added to the decolored polyester fabric to depolymerize into ethylene terephthalate monomers.

公开(公告)号：US12270137B2

公开(公告)日：2025-04-08

申请号：US17865356

申请日：2022-07-14

Applicant: NAN YA PLASTICS CORPORATION

Inventor： Te-Chao Liao ,  Jung-Jen Chuang ,  Zhang-Jian Huang ,  Yu-Ti Tseng

IPC: D06B9/00 ,  D06B3/10 ,  D06P5/04 ,  D06P5/13 ,  D06P5/15

Abstract: A method for decolorizing a polyester fabric is provided, which includes: providing a dyed polyester fabric, in which a material of the dyed polyester fabric contains a dye and a water repellent; providing a composite solvent, in which the composite solvent includes propylene glycol methyl ether (PM) and acetic acid that are mixed together; and performing an extraction process, which includes using the composite solvent to wet the dyed polyester fabric and remove the dye and the water repellent from the material of the polyester fabric by extraction, so as to obtain a reduced polyester fabric.

公开(公告)号：US12116340B2

公开(公告)日：2024-10-15

申请号：US18069943

申请日：2022-12-21

Applicant: NAN YA PLASTICS CORPORATION

Inventor： Te-Chao Liao ,  Jung-Jen Chuang ,  Chung-Yu Chen ,  Jung-Tsu Wu

IPC: C07C51/56 ,  C07D307/89

CPC classification number: C07C51/56 ,  C07D307/89

Abstract: A method for manufacturing methyltetrahydrophthalic anhydride is provided, which includes steps as follows. Maleic anhydride is added into a reactor. Piperylene is added into the reactor, so that the piperylene and the maleic anhydride undergo a first addition reaction. When a conversion rate of the maleic anhydride is more than 25%, the first addition reaction is completed. Isoprene is added into the reactor, so that the isoprene and the maleic anhydride undergo a second addition reaction to obtain a methyltetrahydrophthalic anhydride product. The methyltetrahydrophthalic anhydride product contains 3-methyltetrahydrophthalic anhydride and 4-methyltetrahydrophthalic anhydride.

公开(公告)号：US11858891B2

公开(公告)日：2024-01-02

申请号：US17570351

申请日：2022-01-06

Applicant: NAN YA PLASTICS CORPORATION

Inventor： Te-Chao Liao ,  Jung-Jen Chuang ,  Yu Ti Tseng ,  Zhang-Jian Huang

IPC: C07C67/52 ,  B01J20/20 ,  B01D15/08 ,  B01D9/00 ,  C07C67/48 ,  C07C67/60

CPC classification number: C07C67/52 ,  B01D9/0004 ,  B01D15/08 ,  B01J20/20 ,  C07C67/48 ,  C07C67/60 ,  B01D2009/0086

Abstract: The disclosure provides a decolorization and purification method of BHET material, which includes the following steps. A first dose of activated carbon is added to preliminarily treat the BHET material. After the preliminary treatment, a first cooling crystallization process and filtration are performed to obtain BHET crystals. Afterwards, an oxidant is used to chemically react with the BHET crystals to destroy a dye or impurities, and then a second dose of activated carbon is added to adsorb a chemically reacted oxide. Next, a second cooling crystallization process, filtration, and drying are performed to obtain a finished product of BHET.

公开(公告)号：US11840605B2

公开(公告)日：2023-12-12

申请号：US17337646

申请日：2021-06-03

Applicant: NAN YA PLASTICS CORPORATION

Inventor： Te-Chao Liao ,  Jung-Jen Chuang ,  Zhang-Jian Huang

IPC: C08G63/85 ,  C08G63/16

CPC classification number: C08G63/85 ,  C08G63/16

Abstract: A method for manufacturing polyester polyhydric alcohol is provided. The method for manufacturing the polyester polyhydric alcohol includes steps as follows. A polybasic acid and a first polyhydric alcohol are mixed for a first oligomerization reaction, so as to form a first oligomer mixture. A second polyhydric alcohol is added into the first oligomer mixture for a second oligomerization reaction when a remaining amount of the first polyhydric alcohol in the first oligomer mixture is lower than or equal to 1 mol %, so as to form a second oligomer mixture. A catalyst is added into the second oligomer mixture for a polycondensation reaction, so as to obtain a polyester polyhydric alcohol product. The polyester polyhydric alcohol product has an Alpha value of lower than 30.

公开(公告)号：US20230279181A1

公开(公告)日：2023-09-07

申请号：US17739212

申请日：2022-05-09

Applicant: NAN YA PLASTICS CORPORATION

Inventor： Te-Chao Liao ,  Jung-Jen Chuang ,  Chia-Ruey Tsai

IPC: C08G65/48 ,  C08G65/44 ,  B01J8/10 ,  B01J8/08

CPC classification number: C08G65/485 ,  B01J8/087 ,  B01J8/10 ,  C08G65/44 ,  B01J2208/00141 ,  B01J2208/0015

Abstract: A method for producing polyphenylene ether amine includes following steps. In step (a), a hydrogenation reaction tank is provided; a guided gas stirrer is disposed in the hydrogenation reaction tank. In step (b), a reaction solution is placed in the hydrogenation reaction tank, and the reaction solution is nitro polyphenylene ether dissolved in a solvent. In step (c), a hydrogenation catalyst is added to the reaction solution. In step (d), a hydrogen gas is introduced into the hydrogenation reaction tank. In step (e), the guided gas stirrer is activated. In step (f), a hydrogenation reaction is carried out on the conditions that a reaction temperature is 50-200° C. and a reaction time is 1-20 hours, so as to hydrogenate the nitro polyphenylene ether in the reaction solution to polyphenylene ether amine. In step (g), the reaction solution is cooled down to a room temperature; the hydrogenation catalyst is removed.

公开(公告)号：US20230147792A1

公开(公告)日：2023-05-11

申请号：US17570351

申请日：2022-01-06

Applicant: NAN YA PLASTICS CORPORATION

Inventor： Te-Chao Liao ,  Jung-Jen Chuang ,  Yu Ti Tseng ,  Zhang-Jian Huang

IPC: C07C67/52 ,  B01J20/20 ,  B01D9/00 ,  B01D15/08

CPC classification number: C07C67/52 ,  B01D9/0004 ,  B01D15/08 ,  B01J20/20 ,  B01D2009/0086

Abstract: The disclosure provides a decolorization and purification method of BHET material, which includes the following steps. A first dose of activated carbon is added to preliminarily treat the BHET material. After the preliminary treatment, a first cooling crystallization process and filtration are performed to obtain BHET crystals. Afterwards, an oxidant is used to chemically react with the BHET crystals to destroy a dye or impurities, and then a second dose of activated carbon is added to adsorb a chemically reacted oxide. Next, a second cooling crystallization process, filtration, and drying are performed to obtain a finished product of BHET.

公开(公告)号：US20230132027A1

公开(公告)日：2023-04-27

申请号：US17568730

申请日：2022-01-05

Applicant: NAN YA PLASTICS CORPORATION

Inventor： Te-Chao Liao ,  Jung-Jen Chuang ,  Tzu-Huan Wong

IPC: B09B3/70

Abstract: A disposal method for waste fabric containing polyester and nylon includes: step (a): providing a waste fabric containing polyester and nylon; step (b): performing a first-stage treatment including acid treatment on the material to obtain a first liquid material and a first solid material; step (c): performing a second-stage treatment on the first liquid material to obtain a second liquid material and a second solid material; step (d): performing a third-stage treatment including acid treatment on the first solid material to obtain a third liquid material; step (e): performing a fourth-stage treatment on the third solid material to obtain a fourth liquid material and a fourth solid material, wherein the acid concentration of the second liquid material is lower than the acid concentration of the first liquid material, and the acid concentration of the fourth liquid material is lower than the acid concentration of the third liquid material.