公开(公告)号：US20220403212A1

公开(公告)日：2022-12-22

申请号：US17701173

申请日：2022-03-22

Applicant: CHANG CHUN PETROCHEMICAL CO., LTD.

Inventor： Chih Chieh LIANG ,  Wen Hsin LIN

IPC: C09J7/29 ,  C08K3/08 ,  C08K3/38 ,  B32B27/30 ,  B32B7/12 ,  B32B27/08 ,  B32B27/32

Abstract: The present invention relates to an ethylene-vinyl alcohol copolymer (EVOH) resin composition, an EVOH film formed therefrom, and a multilayer structure containing the same. The surface roughness of the EVOH resin composition is the peak material volume (Vmp) between 0.0008 and 10 μm3/μm2. The EVOH of the invention can reduce the torque output during processing, and can obtain the EVOH film with excellent appearance.

公开(公告)号：US20220403147A1

公开(公告)日：2022-12-22

申请号：US17701055

申请日：2022-03-22

Applicant: CHANG CHUN PETROCHEMICAL CO., LTD.

Inventor： Chih Chieh LIANG ,  Wen Hsin LIN

IPC: C08L23/08 ,  C08L29/04 ,  B32B27/08 ,  B32B27/30 ,  B32B27/32 ,  B32B7/12

Abstract: The present invention relates to an ethylene-vinyl alcohol copolymer (EVOH) resin composition, an EVOH film formed therefrom, and a multilayer structure containing the same. The surface roughness of the EVOH resin composition is a kurtosis (Sku) ranging from 0.05 to 100. The EVOH of the invention can reduce the torque output during processing, and can obtain the EVOH film with excellent appearance.

公开(公告)号：US11519092B1

公开(公告)日：2022-12-06

申请号：US17562031

申请日：2021-12-27

Applicant: CHANG CHUN PETROCHEMICAL CO., LTD.

Inventor： Ting-Chun Lai ,  Yao-Sheng Lai ,  Jui-Chang Chou

IPC: C25D5/00 ,  C25D5/12 ,  H05K1/09

Abstract: A surface-treated copper foil includes a treating surface, and a peak extreme height (Sxp) of the treating surface being in a range of 0.4-2.5 μm, where the hysteresis loop of the surface-treated copper foil includes a first magnetization and a second magnetization when the magnetic field strength of the hysteresis loop is zero, and the absolute difference between the value of the first magnetization and the value of the second magnetization is in a range of 20-1200 emu/m3.

公开(公告)号：US11492436B2

公开(公告)日：2022-11-08

申请号：US17582202

申请日：2022-01-24

Applicant: CHANG CHUN PETROCHEMICAL CO., LTD.

Inventor： Jyun-Ru Sun ,  Huan-Ming Chang ,  Cheng-Fan Wang ,  Chia-Hao Hsu

IPC: C08F261/04 ,  C08F16/06

Abstract: The present disclosure provides a modified polyvinyl alcohol-based polymer, which comprises a modifying monomer unit represented by Formula wherein, X is a moiety comprising an alkenyl group, and the modified polyvinyl alcohol-based polymer has a saponification degree of 67 mol % to 78 mol % and a modification rate of 0.02 mol % to 1.5 mol %. The modified polyvinyl alcohol-based polymer is suitable to be used as a dispersant for suspension polymerization, to make the obtained polyvinyl chloride-based resin have reduced particle diameter and few coarse particles.

公开(公告)号：US11283080B2

公开(公告)日：2022-03-22

申请号：US17259333

申请日：2020-01-15

Applicant: CHANG CHUN PETROCHEMICAL CO., LTD.

Inventor： Huei-Fang Huang ,  Ting-Chun Lai ,  Kuei-Sen Cheng ,  Jui-Chang Chou ,  Yao-Sheng Lai

IPC: H01M4/66 ,  H01M4/04 ,  H01M10/0525 ,  H01M4/70 ,  C25D1/04 ,  C25D3/04 ,  C25D3/12 ,  C25D3/22 ,  C25D3/38 ,  C25D5/14 ,  C25D5/16 ,  C25D5/48 ,  C25D5/10 ,  B32B15/01 ,  B32B15/08 ,  B32B15/20 ,  H05K1/09 ,  H05K1/18 ,  H05K3/38 ,  H05K1/02 ,  H01M4/02

Abstract: Provided are an electrodeposited copper foil, a current collector, an electrode, and a lithium-ion secondary battery comprising the same. The electrodeposited copper foil has a deposited side and a drum side opposite the deposited side. In a first aspect, ΔRS between the deposited side and the drum side is at most about 95 MPa, and the deposited side exhibits a Vv in a range from about 0.15 μm3/μm2 to about 1.35 μm3/μm2. In a second aspect, the deposited side has a Sku of about 1.5 to about 6.5 and the deposited side exhibits a Vv in a range from about 0.15 μm3/μm2 to about 1.35 μm3/μm2. The characteristics are beneficial to improve the quality of the electrodeposited copper foil, thereby extending the charge-discharge cycle life of a lithium-ion secondary battery comprising the same.

公开(公告)号：US20210198470A1

公开(公告)日：2021-07-01

申请号：US17135798

申请日：2020-12-28

Applicant: CHANG CHUN PETROCHEMICAL CO., LTD.

Inventor： Hou Hsi WU ,  Yu Hsiu LI ,  Wen Hsin LIN

IPC: C08L29/02 ,  C08L27/20

Abstract: The instant disclosure relates to a fluorine-containing ethylene-vinyl alcohol copolymer (EVOH) resin composition as well as mixture and blend thereof. The fluorine-containing EVOH resin composition comprises EVOH and fluorine-containing particles, wherein the fluorine-containing EVOH resin composition has a total fluoride ion content ranging from 45 to 41000 ppm. The invention can reduce the adhesion of EVOH to the inside of the extruder, and effectively reduce the appearance of gel or gelled substance in subsequent finished products.

公开(公告)号：US20210189113A1

公开(公告)日：2021-06-24

申请号：US16999587

申请日：2020-08-21

Applicant: Chang Chun Petrochemical Co., Ltd.

Inventor： Chih Chieh LIANG ,  Wen Hsin LIN ,  Chao Hsiang HSU

IPC: C08L29/04 ,  C09J7/29 ,  B32B27/08 ,  B32B7/12 ,  B32B27/32 ,  B32B27/34 ,  B32B27/30

Abstract: Ethylene-vinyl alcohol copolymer resin composition pellet(s), films, and multi-layer structure formed therefrom, as well as methods for preparing such ethylene-vinyl alcohol copolymer resin composition pellets are provided herein. The ethylene-vinyl alcohol copolymer resin composition typically comprises at least two melting point temperatures, and a boron compound, wherein the ethylene-vinyl alcohol copolymer resin composition has a boron content of about 25 to about 300 ppm and has an iodine dyed region of about 0.1 mm2 or less after dripping 0.01 mL of iodine solution on the surface of the ethylene-vinyl alcohol copolymer resin composition, dipping the ethylene-vinyl alcohol copolymer resin composition into water for 5 seconds, and drying at a temperature of 120° C. for 2 hours.

公开(公告)号：US10991948B1

公开(公告)日：2021-04-27

申请号：US16825658

申请日：2020-03-20

Applicant: CHANG CHUN PETROCHEMICAL CO., LTD.

Inventor： Kuei-Sen Cheng ,  Yao-Sheng Lai ,  Jui-Chang Chou

IPC: H01M4/66 ,  H01M4/04 ,  H01M10/0525

Abstract: Surface-treated copper foils including a copper foil having a first side and an opposite-facing second side and two treatment layers disposed on the first side and the second side respectively are described. Each treatment layer provides a treated surface which exhibit a ten-point average roughness Rz in a range of 1.2 μm to 4.6 μm and a peak density (Spd) in a range of 490,000 to 1,080,000 mm−2. Additionally, the Cr content in each of the treatment layers is a range of 25 to 70 μg/dm2. The surface-treated copper foils have excellent electrode active material coating properties, such as good adhesion and uniformity.

公开(公告)号：US10975487B1

公开(公告)日：2021-04-13

申请号：US16746054

申请日：2020-01-17

Applicant: CHANG CHUN PETROCHEMICAL CO., LTD.

Inventor： Huei-Fang Huang ,  Yao-Sheng Lai ,  Jui-Chang Chou

IPC: C25D7/04 ,  C25D1/04 ,  H01M10/0525 ,  H01M4/66 ,  H01M4/70

Abstract: Provided are an electrolytic copper foil, and an electrode and a copper-clad laminate comprising the same. The electrolytic copper foil comprises a base copper layer having a drum side and a deposited side; wherein the electrolytic copper foil has a Charpy impact strength from 0.4 J/mm2 to 5.8 J/mm2.

公开(公告)号：US10961378B1

公开(公告)日：2021-03-30

申请号：US16726552

申请日：2019-12-24

Applicant: CHANG CHUN PETROCHEMICAL CO., LTD.

Inventor： Wen Hsin Lin ,  Chih Chieh Liang ,  Chao Hsiang Hsu

IPC: C08L29/04 ,  C08L23/08 ,  C08F210/02 ,  C08F216/06 ,  C08J3/215

Abstract: Ethylene-vinyl alcohol pellet(s), films, and multi-layer structure formed therefrom, as well as methods for preparing such ethylene-vinyl alcohol pellets are provided herein. The ethylene-vinyl alcohol pellets have at least two melting point temperatures and a light transmittance of greater than 8% for visible light wavelengths. The ethylene-vinyl alcohol pellet may have a haze value of less than 99.8%. One method for producing the EVOH pellet includes: obtaining a first solution comprising a first ethylene-vinyl acetate having a first ethylene content; obtaining a second solution comprising a second ethylene-vinyl acetate having a second ethylene content that is different from the first ethylene content; solution mixing; saponification; pelletizing the mixed solution to form a pellet; contacting the pellet to a boron solution; and drying the pellet.