Patents by Inventor Junwei AI

Junwei AI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20250002716
    Abstract: A polycarbonate (PC) alloy material includes the following components in parts by weight: 40-70 parts of polycarbonate, 20-40 parts of polyethylene terephthalate (PET), and 0.1-2 parts of a metallic compound. The metallic compound is selected from any one or more of a metal oxide, a metal alkali or a metal salt. The metal is selected from any one or more of copper, iron, magnesium, calcium, titanium, antimony, sodium or potassium. A certain amount of PET and a specific metallic compound are added to the polycarbonate; the prepared polycarbonate alloy material has excellent chemical resistance, and meanwhile has a high melt strength and a low melt cooling rate, and thus is suitable for the production of large thick-walled packaging container products via extrusion blow molding.
    Type: Application
    Filed: October 12, 2022
    Publication date: January 2, 2025
    Inventors: Xiangmao DONG, Hesheng HUANG, Pingxu CHEN, Nanbiao YE, Junwei AI, Yin CEN, Yong ZHANG
  • Patent number: 12129376
    Abstract: An antibacterial polycarbonate composite includes the following components in parts by weight: 100 parts of a polycarbonate, 0.01-5 parts of a nanometer metal oxide, and 0.01-5 parts of a silicon-containing high-molecular polymer; and based on a total weight of the antibacterial polycarbonate composite, a content of a silver ion is 100-1200 ppm.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: October 29, 2024
    Assignee: KINGFA SCI. & TECH. CO., LTD.
    Inventors: Chao Ding, Mingkun Li, Yin Cen, Minle Peng, Junwei Ai, Jun Wu
  • Patent number: 11767427
    Abstract: The present invention provides a polycarbonate alloy including the following components in parts by weight: 50 parts to 80 parts of a polycarbonate; 1 part to 50 parts of a crystalline polyester; 0.01 part to 4 parts of a maleic anhydride polymer; and 0.01 part to 4 parts of a metal phosphate. The polycarbonate alloy of the present invention has advantages of good alloy stability, and a continuous and uniform distribution of the crystalline polyester in the alloy.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: September 26, 2023
    Assignee: KINGFA SCI. & TECH. CO., LTD.
    Inventors: Peitao Wang, Yin Cen, Xianbo Huang, Nanbiao Ye, Junwei Ai, Jun Wu, Xiangmao Dong, Chao Ding
  • Publication number: 20220325098
    Abstract: A glass fiber reinforced polycarbonate composite material, a preparation method and an application thereof; the material includes the following components: component A: 40 parts to 90 parts of a polycarbonate; component B: 1.5 parts to 50 parts of a polysiloxane block copolymer; component C: 5 parts to 60 parts of a glass fiber; component D: 0.1 parts to 30 parts of a phosphorus-containing compound; and component E: 0.01 parts to 30 parts of a polyolefin compound.
    Type: Application
    Filed: July 24, 2020
    Publication date: October 13, 2022
    Applicant: KINGFA SCI. & TECH. CO., LTD.
    Inventors: Yin CEN, Junwei AI, Yongwen CHEN, Mingkun LI, Xianwen LIU, Tipeng ZHAO, Wei TONG
  • Publication number: 20220073736
    Abstract: The present application is related to a polycarbonate composition, including 100 parts of a polycarbonate in parts by weight; wherein based on a total weight percentage of the polycarbonate, the polycarbonate consists of 10% to 40% of a first polycarbonate with a weight average molecular weight of 18,000 to 25,000, 20% to 60% of a second polycarbonate with a weight average molecular weight of 27,000 to 35,000, and 20% to 60% of a third polycarbonate with a degree of branching of 2 to 7 and a weight average molecular weight of 25,000 to 30,000. The polycarbonate composition has the advantages of high transparency, good extrusion melt uniformity, etc.
    Type: Application
    Filed: November 28, 2019
    Publication date: March 10, 2022
    Applicant: KINGFA SCI. & TECH. CO., LTD.
    Inventors: Yin CEN, Jun WU, Xianbo HUANG, Nanbiao YE, Tipeng ZHAO, Junwei AI, Yongwen CHEN, Xiangmao DONG
  • Publication number: 20220049090
    Abstract: The present invention discloses a polycarbonate alloy, including the following components in parts by weight: 80 parts of a polycarbonate; and 5 parts to 30 parts of an ethylene copolymer.
    Type: Application
    Filed: October 30, 2019
    Publication date: February 17, 2022
    Applicant: KINGFA SCI. & TECH. CO., LTD.
    Inventors: Yan YANG, Mingkun LI, Xianbo HUANG, Nanbiao YE, Wei TONG, Xiangmao DONG, Junwei AI
  • Publication number: 20220049091
    Abstract: The present invention discloses a high weld line strength polypropylene/polycarbonate alloy, including the following components in parts by weight: 5 parts to 40 parts of a polypropylene; 40 parts to 85 parts of a polycarbonate; and 1 part to 15 parts of an ethylene copolymer compatibilizer. The high weld line strength polypropylene/polycarbonate alloy has high weld line strength, a good melt index and an excellent chemical resistance.
    Type: Application
    Filed: October 30, 2019
    Publication date: February 17, 2022
    Applicant: KINGFA SCI. & TECH. CO., LTD.
    Inventors: Yan YANG, Mingkun LI, Xianbo HUANG, Nanbiao YE, Wei TONG, Xiangmao DONG, Junwei AI
  • Publication number: 20220041860
    Abstract: The present invention provides a polycarbonate alloy including the following components in parts by weight: 50 parts to 80 parts of a polycarbonate; 1 part to 50 parts of a crystalline polyester; 0.01 part to 4 parts of a maleic anhydride polymer; and 0.01 part to 4 parts of a metal phosphate. The polycarbonate alloy of the present invention has advantages of good alloy stability, and a continuous and uniform distribution of the crystalline polyester in the alloy.
    Type: Application
    Filed: March 2, 2020
    Publication date: February 10, 2022
    Applicant: KINGFA SCI. & TECH. CO., LTD.
    Inventors: Peitao WANG, Yin CEN, Xianbo HUANG, Nanbiao YE, Junwei AI, Jun WU, Xiangmao DONG, Chao DING
  • Publication number: 20210403706
    Abstract: The present invention discloses a high weld line strength polyethylene/polycarbonate alloy, including the following components in parts by weight: 5 parts to 40 parts of a polyethylene; 40 parts to 85 parts of a polycarbonate; and 1 part to 15 parts of an ethylene copolymer compatibilizer. The high weld line strength polyethylene/polycarbonate alloy has the advantages of high weld line strength, a good melt index and a good thermal aging resistance.
    Type: Application
    Filed: October 30, 2019
    Publication date: December 30, 2021
    Applicant: KINGFA SCI. & TECH. CO., LTD.
    Inventors: Yan YANG, Mingkun LI, Xianbo HUANG, Nanbiao YE, Wei TONG, Xiangmao DONG, Junwei AI
  • Publication number: 20210054194
    Abstract: An antibacterial polycarbonate composite includes the following components in parts by weight: 100 parts of a polycarbonate, 0.01-5 parts of a nanometer metal oxide, and 0.01-5 parts of a silicon-containing high-molecular polymer; and based on a total weight of the antibacterial polycarbonate composite, a content of a silver ion is 100-1200 ppm.
    Type: Application
    Filed: October 30, 2019
    Publication date: February 25, 2021
    Applicant: KINGFA SCI. & TECH. CO., LTD.
    Inventors: Chao DING, Mingkun LI, Yin CEN, Minle PENG, Junwei AI, Jun WU
  • Patent number: 10696841
    Abstract: A polycarbonate composition includes the following components in parts by weight: a. 30 to 86 parts of polycarbonate; b. 0.0001 to 1 part of phenols; c. 0.01 to 5 parts of hindered phenol substance; d. 8 to 50 parts of a rubber-modified graft polymer; e. 5 to 25 parts of a fire retardant; and f. 0 to 10 parts of a fire retardant synergist; wherein a sum of parts by weight of the six components a, b, c, d, e and f is 100.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: June 30, 2020
    Assignee: KINGFA SCI. & TECH. CO., LTD.
    Inventors: Xiuhao Xie, Donghai Sun, Yin Cen, Wei Tong, Junwei Ai
  • Publication number: 20180163047
    Abstract: A polycarbonate composition includes the following components in parts by weight: a. 30 to 86 parts of a polycarbonate; b. 0.0001 to 1 part of phenols as shown in Formula I; c. 0.01 to 5 parts of a hindered phenol substance as shown in Formula II; d. 8 to 50 parts of a rubber-modified graft polymer; e. 5 to 25 parts of a fire retardant; and f. 0 to 10 parts of a fire retardant synergist; wherein a sum of parts by weight of the six components a, b, c, d, e and f is 100; wherein the structural formula of Formula I: wherein R1 and R5 represent a hydrogen group, an alkyl, an alkoxy, a hydroxyl, a carboxyl or a carbonyl, and an ester group, except for a hindered group; and R2, R3 and R4 represent a substituent containing hydrogen atoms, preferably the hydrogen atom.
    Type: Application
    Filed: May 27, 2016
    Publication date: June 14, 2018
    Applicant: KINGFA SCI. & TECH. CO., LTD.
    Inventors: Xiuhao XIE, Donghai SUN, Yin CEN, Wei TONG, Junwei AI