公开(公告)号：US10179758B2

公开(公告)日：2019-01-15

申请号：US15615890

申请日：2017-06-07

Applicant: NAN YA PLASTICS CORPORATION

Inventor： Te-Chao Liao ,  Jung-Jen Chuang ,  Cheng-Hsun Chen ,  Chia-Ruey Tsai ,  Chung-Yu Chen

IPC: C07C55/10 ,  B01F7/00 ,  C07C51/43 ,  C07C31/02

Abstract: A method for crystallizing succinic acid includes agitating a succinic acid reaction solution with a jet-flow agitator that is rotated at low speed and has a low volume power density; compared with the conventional agitators, the jet-flow agitator helps increase the uniformity of succinic acid particles, shorten the time required for crystallizing succinic acid, and raise the yield of the crystallized succinic acid as well as purity of crystallized succinic acid having a purity of 99.8-99.9%.

公开(公告)号：US20250066968A1

公开(公告)日：2025-02-27

申请号：US18472250

申请日：2023-09-22

Applicant: NAN YA PLASTICS CORPORATION

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

IPC: D06B3/10 ,  D06P5/13

Abstract: A method for degumming and decolorizing polyester fabrics is provided. The method includes the following steps. A first polyester fabric attached with a dye and a gum-film or treatment agent is provided. The gum-film or treatment agent in the first polyester fabric is stripped through a combined formulation of an alkaline aqueous solution and a catalyst to obtain a second polyester fabric. Then, the second polyester fabric is decolorized by a combination of a chemical reduction method and a chemical oxidation method to obtain a third polyester fabric.

公开(公告)号：US12180332B2

公开(公告)日：2024-12-31

申请号：US17377531

申请日：2021-07-16

Applicant: NAN YA PLASTICS CORPORATION

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

IPC: C08G63/20 ,  C08G63/85

Abstract: A plasticizer and a method for producing the same are provided. The method for producing the plasticizer includes: reacting a reaction mixture at each of a plurality of temperature holding stages in a heating process to form a semi-finished product; and purifying the semi-finished product at each of a plurality of low pressure stages of a decompression process to obtain a plasticizer. A temperature range of the heating process is from 140° C. to 220° C., a pressure range of the decompression process is from 750 Torr to 20 Torr, and the reaction mixture contains dibasic acid (e.g., adipic acid), diol (e.g. 1,4-butanediol), monohydric alcohol (e.g., 2-ethylhexanol), and catalyst (e.g., titanium catalyst).

公开(公告)号：US20240417528A1

公开(公告)日：2024-12-19

申请号：US18358930

申请日：2023-07-25

Applicant: NAN YA PLASTICS CORPORATION

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

IPC: C08J11/24

Abstract: A disposal method for recyclate of the disclosure including: providing recyclable containing polyester; performing a first depolymerization step, including mixing the recyclable and o-BHET for reaction and extrusion depolymerization to at least obtain or produce p-BHET; and performing a second depolymerization step, including mixing the p-BHET and a depolymerization solution for chemically depolymerization to at least obtain or produce m-BHET.

公开(公告)号：US20230082196A1

公开(公告)日：2023-03-16

申请号：US17721339

申请日：2022-04-14

Applicant: NAN YA PLASTICS CORPORATION

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

IPC: D06M13/188 ,  D06P5/13

Abstract: Provided is a recycling method of a polyester cotton blended fabric, including the following steps. A dye-containing polyester cotton blended fabric is put into an acidic aqueous solution containing an oxidizing agent for heating and soaking, so as to degrade the cotton in the polyester cotton blended fabric into powder, and decolorization is performed at the same time to remove the dye. After that, a polyester fabric and cotton powder are obtained by double filtration.

公开(公告)号：US11180436B2

公开(公告)日：2021-11-23

申请号：US16892359

申请日：2020-06-04

Applicant: NAN YA PLASTICS CORPORATION

Inventor： Te-Chao Liao ,  Jung-Jen Chuang ,  Chung-Yu Chen ,  Chiou-Nan Lai

IPC: C07C29/86 ,  C07C29/80 ,  C07C31/20

Abstract: A method for purifying by-product ethylene glycol of polyester in converting plasticizer includes: inputting a reaction liquid waste stream including ethylene glycol and 2-ethylhexanol into an ethylene glycol dehydration tower; inputting a hot water stream into the ethylene glycol dehydration tower to mix with the reaction liquid waste stream and to remove the 2-ethylhexanol from the reaction liquid waste stream; dehydrating the ethylene glycol via the ethylene glycol dehydration tower to collect a crude ethylene glycol stream including dehydrated ethylene glycol from a tower bottom of the ethylene glycol dehydration tower and to collect an organic liquid waste stream including the 2-ethylhexanol from a tower top of the ethylene glycol dehydration tower; and inputting the crude ethylene glycol stream into an ethylene glycol distillation tower to collect a ethylene glycol solution from a tower top of the ethylene glycol distillation tower.

公开(公告)号：US09776955B2

公开(公告)日：2017-10-03

申请号：US15355103

申请日：2016-11-18

Applicant: NAN YA PLASTICS CORPORATION

Inventor： Te-Chao Liao ,  Jung-Jen Chuang ,  Zhi-Ming Huang ,  Shun-Chi Chen ,  Tzu-Chiang Lin

IPC: C07C253/18

CPC classification number: C07C253/18 ,  C07C253/30 ,  C07C255/24

Abstract: A method for preparing N,N′-bis(2-cyanoethyl-1,2-ethylenediamine involves using glycol ether as a catalyst for synthesis reaction in which ethylenediamine and acrylonitrile at a molar ratio of 1:1.9-2.1 are reactant that react at 20-70°C to prepare N,N′-bis(2-cyanoethyl)-1,2-ethylenediamine; the method improves the yield to 98.15-98.98%; and the used glycol ether may be filtered and recycled, thereby saving costs and reducing environmental pollution.

公开(公告)号：US20250051536A1

公开(公告)日：2025-02-13

申请号：US18467701

申请日：2023-09-14

Applicant: NAN YA PLASTICS CORPORATION

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

IPC: C08J11/24 ,  C08G63/183 ,  C08J11/02

Abstract: A method of recycling polyester fabric includes following steps. A polyester fabric including polyethylene terephthalate and dyes is provided. An extraction process including using ethylene glycol as an extraction solvent, immersing the polyester fabric in the extraction solvent, and extracting under a temperature of 80° C. to 180° C. is performed to remove the dyes from the polyester fabric. A depolymerization process including using a chemical depolymerization solution to depolymerize the polyester fabric treated with the extraction process to obtain a product including BHET is performed. The chemical depolymerization solution is ethylene glycol. A purification process is performed to remove impurities of the product obtained by the depolymerization process and to obtain a purified BHET. A solvent recycling process is performed. The solvent recycling process includes collecting waste solutions of the extraction process and the depolymerization process, and recycling ethylene glycol in the waste solutions by a distillation separating system.

公开(公告)号：US20240166802A1

公开(公告)日：2024-05-23

申请号：US18086656

申请日：2022-12-22

Applicant: NAN YA PLASTICS CORPORATION

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

IPC: C08G63/183

CPC classification number: C08G63/183

Abstract: A manufacturing method of a polymer includes the following steps. Terephthalic acid, butanediol, adipic acid, and carboxybenzene are used as raw materials to perform an esterification reaction to obtain a reactant. A catalyst is added to the reactant, and a polymerization reaction is performed.

公开(公告)号：US11739037B1

公开(公告)日：2023-08-29

申请号：US17991816

申请日：2022-11-21

Applicant: NAN YA PLASTICS CORPORATION

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

IPC: C07C29/20 ,  B01J8/10 ,  B01J23/46

CPC classification number: C07C29/20 ,  B01J8/10 ,  B01J23/464 ,  C07C29/20 ,  C07C35/08

Abstract: A method for manufacturing nonylcyclohexanol is provided. The method includes steps as follows: adding a liquid phase reactant into a reactor, and the liquid phase reactant includes a molten nonylphenol and a catalyst; introducing a gas phase reactant to maintain a pressure of the gas phase reactant to be from 36.5 bar to 70 bar, and the gas phase reactant consists of hydrogen; rotating a hollow stirring shaft of the reactor at a temperature of from 100° C. to 130° C. so that the gas phase reactant is transported through a channel formed in the hollow stirring shaft into the liquid phase reactant for carrying out a reaction; obtaining a product that contains nonylcyclohexanol. A conversion rate of the nonylcyclohexanol is higher than or equal to 99.0%.