公开(公告)号：US20230090736A1

公开(公告)日：2023-03-23

申请号：US17887525

申请日：2022-08-15

Applicant: NAN YA PLASTICS CORPORATION

Inventor： TE-CHAO LIAO ,  HUNG-YI CHANG ,  YU-TING LIU ,  CHUNG-YU CHEN ,  CHIA-RUEY TSAI ,  JUNG-TSU WU ,  CHIEN-KAI WEI

IPC: C08G65/48 ,  H05K1/03

Abstract: A polyphenylene ether resin modified with two amino functional groups, a method for producing the same, and a substrate material for a circuit board are provided. The polyphenylene ether resin modified with the two amino functional groups has a structural formula as follows: in which R represents a chemical group that is located between two hydroxyphenyl functional groups of a bisphenol compound, and n is an integer between 3 and 25, inclusive.

公开(公告)号：US20240140900A1

公开(公告)日：2024-05-02

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：US20250034103A1

公开(公告)日：2025-01-30

申请号：US18474204

申请日：2023-09-25

Applicant: NAN YA PLASTICS CORPORATION

Inventor： TE-CHAO LIAO ,  JUNG-JEN CHUANG ,  CHUNG-YU CHEN ,  JUNG-TSU WU

IPC: C07D307/89 ,  B01J31/12

Abstract: A method for isomerizing methyltetrahydrophthalic anhydride includes the following processes. A liquid reactant is provided. Under a condition of injecting nitrogen gas, an alkaline catalyst is added into the liquid reactant for an isomerization reaction, so as to obtain an isomerization product. The liquid reactant includes 3-methyltetrahydrophthalic anhydride and 4-methyltetrahydrophthalic anhydride. Based on a total weight of the isomerization product being 100 wt %, an amount of a methyltetrahydrophthalic anhydride dimer is lower than 1.6 wt %.

公开(公告)号：US20240140925A1

公开(公告)日：2024-05-02

申请号：US18152968

申请日：2023-01-11

Applicant: NAN YA PLASTICS CORPORATION

Inventor： TE-CHAO LIAO ,  JUNG-JEN CHUANG ,  CHUNG-YU CHEN ,  JUNG-TSU WU

IPC: C07D307/77 ,  B01J23/04 ,  B01J27/24 ,  C08K5/1539

CPC classification number: C07D307/77 ,  B01J23/04 ,  B01J27/24 ,  C08K5/1539 ,  C08K2201/009

Abstract: A method for manufacturing a low-viscosity hardener is provided. The method includes the followings steps: providing a hardener crude product; and subjecting the hardener crude product and an alkaline catalyst to an isomerization reaction, so as to obtain the low-viscosity hardener. The hardener crude product contains 3-methyltetrahydrophthalic anhydride and 4-methyltetrahydrophthalic anhydride, and a weight ratio of the 3-methyltetrahydrophthalic anhydride to the 4-methyltetrahydrophthalic anhydride ranges from 7:3 to 3:7. A viscosity of the low-viscosity hardener ranges from 30 cps to 50 cps.

公开(公告)号：US20230374202A1

公开(公告)日：2023-11-23

申请号：US18072619

申请日：2022-11-30

Applicant: NAN YA PLASTICS CORPORATION

Inventor： TE-CHAO LIAO ,  JUNG-JEN CHUANG ,  CHUNG-YU CHEN ,  JUNG-TSU WU

IPC: C08G63/16

CPC classification number: C08G63/16

Abstract: A plasticizer and a method for manufacturing the plasticizer are provided. The method includes the following steps. A dicarboxylic acid, a diol, and a catalyst are mixed to form a reactant mixture. The reactant mixture is reacted at a temperature ranging from 130° C. to 220° C. to form a semi-product. An endcapping alcohol is added into the semi-product at a temperature ranging from 205° C. to 220° C. to form a coarse plasticizer. The coarse plasticizer is purified under a pressure ranging from 760 Torr to 5 Torr to obtain the plasticizer. The dicarboxylic acid includes succinic acid or adipic acid. The diol includes diethylene glycol and 2-methyl-1,3-propanediol. The endcapping alcohol is an ether alcohol or a fatty alcohol having a carbon number of less than or equal to 4. The dicarboxylic acid, the diol, and the endcapping alcohol have a molar ratio ranging from 1:0.6 to 0.9:0.3 to 0.6.

公开(公告)号：US20230374201A1

公开(公告)日：2023-11-23

申请号：US17985597

申请日：2022-11-11

Applicant: NAN YA PLASTICS CORPORATION

Inventor： TE-CHAO LIAO ,  JUNG-JEN CHUANG ,  CHUNG-YU CHEN ,  JUNG-TSU WU

IPC: C08G63/16 ,  C08G63/85

CPC classification number: C08G63/16 ,  C08G63/85

Abstract: A plasticizer and a method for manufacturing the plasticizer are provided. The method includes steps as follow. A dicarboxylic acid, a diol, and a catalyst are mixed to form a reactant mixture. The reactant mixture is reacted at a temperature ranging from 130° C. to 220° C. to form a semi-product. An endcapping alcohol into the semi-product at a temperature ranging from 205° C. to 220° C. to form a coarse plasticizer. The coarse plasticizer is purified under a pressure ranging from 760 Torr to 5 Torr to obtain the plasticizer. The dicarboxylic acid includes a first dicarboxylic acid and a second dicarboxylic acid, and the second dicarboxylic acid is adipic acid. The diol includes diethylene glycol and 2-methyl-1, 3-propanediol. The endcapping alcohol includes isooctyl alcohol, isodecyl alcohol, or 2-propylheptanol. A molar ratio of dicarboxylic acid:diol:the endcapping alcohol ranges from 1:0.6 to 0.9:0.3 to 0.6.

公开(公告)号：US20230374200A1

公开(公告)日：2023-11-23

申请号：US17979070

申请日：2022-11-02

Applicant: NAN YA PLASTICS CORPORATION

Inventor： TE-CHAO LIAO ,  CHENG-LI CHAO ,  CHAO-TUNG WU ,  JUNG-TSU WU

IPC: C08G63/16

CPC classification number: C08G63/16

Abstract: A plasticizer and a method for manufacturing the plasticizer are provided. The method for manufacturing the plasticizer includes steps as follows: mixing a dicarboxylic acid, a diol, and a catalyst to form a reactant mixture; reacting the reactant mixture at a temperature ranging from 130° C. to 220° C. so as to form a semi-product; adding an endcapping alcohol into the semi-product at a temperature ranging from 205° C. to 220° C. so as to form a coarse plasticizer; purifying the coarse plasticizer under a pressure ranging from 760 Torr to 5 Torr so as to obtain the plasticizer. The dicarboxylic acid includes adipic acid. The diol includes a polyglycol and a saturated fatty alcohol. The endcapping alcohol includes isooctyl alcohol, isodecyl alcohol, or 2-propylheptanol. The dicarboxylic acid, the diol, and the endcapping alcohol have a molar ratio ranging from 1:0.6 to 0.9:0.3 to 0.6.