公开(公告)号：US20240199796A1

公开(公告)日：2024-06-20

申请号：US18150760

申请日：2023-01-05

Applicant: NAN YA PLASTICS CORPORATION

Inventor： Te-Chao Liao ,  Han-Ching Hsu ,  Chen-Wei Chang

IPC: C08G63/183 ,  C08G63/87

CPC classification number: C08G63/183 ,  C08G63/87

Abstract: A polyethylene terephthalate (PET) copolyester and a manufacturing method thereof are provided, including the following steps. A dispersion slurry including a talcum powder is formulated. Terephthalic acid and ethylene glycol are mixed, and the dispersion slurry and a side group ester compound are introduced to perform a transesterification reaction and form bis-2-hydroxylethyl terephthalate. Afterwards, a prepolymerization reaction and a polycondensation reaction are carried out to form a polyethylene terephthalate copolyester.

公开(公告)号：US11732131B2

公开(公告)日：2023-08-22

申请号：US17885517

申请日：2022-08-10

Applicant: NAN YA PLASTICS CORPORATION

Inventor： Te-Chao Liao ,  Han-Ching Hsu ,  Chen-Wei Chang

IPC: C08L75/06 ,  D01D5/08 ,  C08G18/42 ,  C08G18/12 ,  C08G18/28 ,  D01F6/70 ,  C08G18/76 ,  D01D1/04 ,  C08K5/3492 ,  C08G18/08 ,  D01F1/10

CPC classification number: C08L75/06 ,  C08G18/0895 ,  C08G18/12 ,  C08G18/2825 ,  C08G18/4202 ,  C08G18/4236 ,  C08G18/4238 ,  C08G18/7671 ,  C08K5/3492 ,  D01D1/04 ,  D01D5/08 ,  D01F6/70 ,  D01F1/10

Abstract: A thermoplastic polyurethane resin suitable for melt spinning is formed from a reaction mixture via a polymerization reaction. The reaction mixture includes an isocyanate component and a polyol component. The polyol component includes a first polyol that has a first number average molecular weight and a second polyol that has a second number average molecular weight. The first number average molecular weight is between 1,000 g/mol and 1,500 g/mol, and the second number average molecular weight is between 2,500 g/mol and 3,000 g/mol. One resin component formed by the first polyol via the polymerization reaction is defined as a low melting point segment and correspondingly has a first melting point between 170° C. and 185° C. Another resin component formed by the second polyol via the polymerization reaction is defined as a high melting point segment and correspondingly has a second melting point between 195° C. and 210° C.

公开(公告)号：US20240166807A1

公开(公告)日：2024-05-23

申请号：US18091412

申请日：2022-12-30

Applicant: NAN YA PLASTICS CORPORATION

Inventor： Te-Chao Liao ,  Han-Ching Hsu ,  Chen-Wei Chang

IPC: C08G63/80 ,  C08G63/06

CPC classification number: C08G63/80 ,  C08G63/06

Abstract: A polyethylene terephthalate (PET) copolyester and a manufacturing method thereof are provided. The manufacturing method includes the following steps. A dispersion slurry including a talcum powder is formulated, wherein the talcum powder has an average particle size of 1 μm to 50 μm and an average specific surface area of 7 m2/g to 20 m2/g. Next, a terephthalic acid and an ethylene glycol are mixed, and the dispersion slurry and a crystallization accelerator are introduced, so as to carry out a transesterification reaction and therefore form a bis-2-hydroxylethyl terephthalate (BHET). Afterwards, a prepolymerization reaction and a polycondensation reaction are carried out to form a polyethylene terephthalate (PET) copolyester.

公开(公告)号：US11773304B2

公开(公告)日：2023-10-03

申请号：US16727761

申请日：2019-12-26

Applicant: NAN YA PLASTICS CORPORATION

Inventor： Te-Chao Liao ,  Han-Ching Hsu ,  Chen-Wei Chang

IPC: C09J175/08 ,  C09J7/30 ,  C08G18/12 ,  C08K5/00 ,  C08G18/48 ,  C08K5/13 ,  C08K5/521 ,  C08K5/3475 ,  C08K5/09

CPC classification number: C09J175/08 ,  C08G18/12 ,  C08G18/4841 ,  C08G18/4845 ,  C08K5/005 ,  C08K5/09 ,  C08K5/13 ,  C08K5/3475 ,  C08K5/521 ,  C09J7/30

Abstract: A polyurethane adhesive and a mixture used for manufacturing a plastic athletic track are provided. The polyurethane adhesive includes a urethane pre-polymer which is formed by a reaction between an isocyanate and a polyol. The polyol is selected from the group consisting of polyether polyol and polybutadiene polyol, and a number average molecular weight of the polyol is between 1,000 g/mole and 6,000 g/mole. Based on the total weight of the polyurethane adhesive, a content of the urethane pre-polymer is between 80 wt % and 99.5 wt %, and a viscosity of the polyurethane adhesive is between 1,000 cps and 3,000 cps under an environmental temperature of between 15° C. and 40° C.