公开(公告)号：US20230182449A1

公开(公告)日：2023-06-15

申请号：US17853604

申请日：2022-06-29

Applicant: CHANG CHUN PETROCHEMICAL CO., LTD.

Inventor： Tzu-Jung Huang

IPC: B32B17/10 ,  B32B3/26 ,  B32B27/08 ,  B32B27/30 ,  B32B27/22

CPC classification number: B32B17/10761 ,  B32B17/10036 ,  B32B17/10605 ,  B32B3/263 ,  B32B27/08 ,  B32B27/306 ,  B32B27/22 ,  B32B2307/732 ,  B32B2307/308 ,  B32B2457/20

Abstract: The present disclosure relates to a polymer film comprising a polyvinyl acetal resin and a plasticizer, wherein the polymer film is single-layer or multilayer a smallest value of a loss factor of the polymer film occurs at a temperature ranging from 40° C. to 60° C. The polymer film provided herein exhibits improved fluidity and processability.

公开(公告)号：US20230182447A1

公开(公告)日：2023-06-15

申请号：US17853598

申请日：2022-06-29

Applicant: CHANG CHUN PETROCHEMICAL CO., LTD.

Inventor： Yen-Chen Huang ,  Tzu-Jung Huang ,  Cheng Fan Wang

IPC: B32B17/10 ,  B32B27/30 ,  B32B27/08 ,  B32B27/22

CPC classification number: B32B17/10761 ,  B32B27/306 ,  B32B27/08 ,  B32B27/22 ,  B32B17/10036 ,  B32B2307/30 ,  B32B2307/732

Abstract: The present disclosure relates to a polymer film comprising at least one first layer and at least one second layer, the first layer and the second layer each comprising a polyvinyl acetal resin and a plasticizer; wherein the polymer film has a first loss factor peak value at −20° C. to 20° C., and a second loss factor peak value at 20° C. to 50° C.; wherein the polymer film has a loss factor valley value between the first loss factor peak value and the second loss factor peak value, the loss factor valley value is 0.15 to 0.45, and the loss factor of the polymer film at 10° C. is less than 0.5. The polymer film can still maintain good sound insulation performance at a specific ambient temperature and/or after a period of time.

公开(公告)号：US11655317B2

公开(公告)日：2023-05-23

申请号：US17701219

申请日：2022-03-22

Applicant: CHANG CHUN PETROCHEMICAL CO., LTD.

Inventor： Chih Chieh Liang ,  Wen Hsin Lin

IPC: C08F216/04 ,  B32B7/12 ,  B32B27/08 ,  B32B27/30 ,  B32B27/32 ,  B32B27/34

CPC classification number: C08F216/04 ,  B32B7/12 ,  B32B27/08 ,  B32B27/306 ,  B32B27/32 ,  B32B27/34 ,  B32B2250/24 ,  B32B2307/538

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 root mean square gradient (Sdq) between 0.0005 and 13. The EVOH of the invention can reduce the torque output during processing, and make the appearance of the EVOH film highly uniform.

公开(公告)号：US11603279B2

公开(公告)日：2023-03-14

申请号：US17477506

申请日：2021-09-16

Applicant: CHANG CHUN PETROCHEMICAL CO., LTD.

Inventor： Ming-Yu Yang ,  Yao-Sheng Lai ,  Jui-Chang Chou

IPC: B65H18/28

Abstract: A package structure of a roll-shaped thin film includes a thin film roll and a buffer layer. The thin film roll includes a winding core and a thin film wound around the winding core, and the buffer layer is wound around an outer circumference of the thin film. An end portion of the buffer layer is covered with an inner surface of an end portion of the thin film, and the thickness of the buffer layer is in a range of 1-20 mm.

公开(公告)号：US11572631B2

公开(公告)日：2023-02-07

申请号：US17482383

申请日：2021-09-22

Applicant: National Tsing Hua University ,  Chang Chun Plastics Co., Ltd. ,  Chang Chun Petrochemical Co., Ltd. ,  DAIREN CHEMICAL CORP.

Inventor： Chun-Lun Huang ,  Shih-Yuan Lu

IPC: C25B1/04 ,  C22C30/02 ,  C25B11/091 ,  C25D3/56 ,  C25B11/031 ,  C25B11/051 ,  C25B11/057

Abstract: A method for electrolysis of water and a method for preparing a catalyst for electrolysis of water are provided. The method for electrolysis of water includes using a high entropy alloy as a catalyst. Further, the method for preparing a catalyst for electrolysis of water includes the steps of placing a substrate in an aqueous electrolyte containing a high entropy alloy precursor and performing an electroplating process on the substrate to form a high entropy alloy catalyst on the substrate.

公开(公告)号：US20220403078A1

公开(公告)日：2022-12-22

申请号：US17700999

申请日：2022-03-22

Applicant: CHANG CHUN PETROCHEMICAL CO., LTD.

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

IPC: C08F216/06 ,  C08J5/18 ,  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 core height difference (Sk) of the surface of the EVOH resin composition is between 0.6 and 2.0 μm, and the overall standard deviation of Sk is between 0.05 and 0.55. The invention can reduce the torque output during processing to achieve the effect of energy saving, and can also improve the stability during output to obtain a better film appearance.

公开(公告)号：US20220403077A1

公开(公告)日：2022-12-22

申请号：US17700964

申请日：2022-03-22

Applicant: CHANG CHUN PETROCHEMICAL CO., LTD.

Inventor： Chih Chieh LIANG ,  Wen Hsin LIN

IPC: C08F216/06 ,  C08J5/18 ,  B32B27/08 ,  B32B27/30 ,  B32B7/12 ,  B32B27/32 ,  B32B27/34

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 core void volume (Vvc) of the surface of the EVOH resin composition is more than 0.010 μm3/μm2 and less than 50 μm3/μm2; or its surface pole height (Sxp) is more than 0.010 μm and less than 9.0 μm. The invention can reduce the torque output during processing, reduce the adsorption of fine powder on the surface caused by static electricity generated on the surface of the EVOH, and provide good film thickness uniformity.

公开(公告)号：US11427663B1

公开(公告)日：2022-08-30

申请号：US17570539

申请日：2022-01-07

Applicant: CHANG CHUN PETROCHEMICAL CO., LTD.

Inventor： Chih Chieh Liang ,  Wen Hsin Lin

IPC: C08F216/06 ,  C08J5/18 ,  C09J7/24 ,  B32B1/02 ,  B32B7/12 ,  B32B27/08 ,  B32B27/30 ,  B32B27/32 ,  C08L29/04

Abstract: The present disclosure provides ethylene-vinyl alcohol copolymer resin compositions, and multilayer structure comprising the ethylene-vinyl alcohol copolymer resin compositions with uniform thickness.

公开(公告)号：US11426981B2

公开(公告)日：2022-08-30

申请号：US16789265

申请日：2020-02-12

Applicant: Chang Chun Petrochemical Co., Ltd.

Inventor： Tzu-Jung Huang ,  Chin-Yen Chang ,  Cheng-Fan Wang

IPC: B32B17/10 ,  C08L31/04 ,  C08K5/101

Abstract: A polymer film comprising polyvinyl acetal and a laminated glass manufactured using the same are provided. At least one surface of the polymer film has a void volume (Vv) value at a material ratio of 10% ranging from 3 μm3/μm2 to 34.3 μm3/μm2, wherein the void volume (Vv) and material ratio are defined in accordance with ISO 25178-2:2012.

公开(公告)号：US20220251273A1

公开(公告)日：2022-08-11

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.