Patents Assigned to Phichem Corporation
  • Publication number: 20240076517
    Abstract: A brightness enhancement film coating material and an application thereof, where preparation raw materials for the coating material, in parts by weight, at least comprise the following components: 20-76 parts a monofunctional photocuring monomer, 20-76 parts a bifunctional photocuring monomer, 1-10 parts a photoinitiator, and 0-4 parts an auxiliary agent. No white streaks are produced after a brightness enhancement film formed by means of the present coating material undergoes a high-temperature high-humidity reliability test, and the adaptability of the brightness enhancement film and a polarizer is improved. Also, a reliability test is able to reflect, to a certain extent, a long-term use situation, and an excellent reliability test result can ensure long-term use stability of a display panel, and fragments produced during a cutting process are prevented from contaminating a film sheet and thereby affecting a use effect thereof.
    Type: Application
    Filed: December 24, 2021
    Publication date: March 7, 2024
    Applicant: Phichem Corporation
    Inventors: Xuhui CHI, Weiguang ZHU
  • Patent number: 11920073
    Abstract: The present disclosure discloses an etching composition. The etching composition includes: a component A: oxidizing agent 1-30 wt %; a component B: inorganic acid 0.5-20 wt %; a component C: organic acid 0-15 wt %; a component D: chelating agent 0.01-15 wt %; a component E: ionic compound and/or other inorganic acids except the inorganic acid in the component B 0-0.1 wt %; and deionized water.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: March 5, 2024
    Assignee: PHICHEM CORPORATION
    Inventors: Xiaoyi Gao, Hangjian Hu
  • Publication number: 20230331992
    Abstract: An ultraviolet curing coating composition includes unsaturated carboxylic acid and salts thereof, a compound containing a carbonyl group, a thickener, a photoinitiator, and deionized water. The added value of a fiber attenuation coefficient of the composition is less than 0.02 dB/km. A coating internally cross-linked in a network shape is formed on the surface of an optical fiber by interaction between active groups, and the coating has a faster water absorption rate and better water blocking effect and is not easy to water loss. Under the optimal mixing of raw materials, the water absorption rate of the coating composition is maintained at 3 to 15 times and further can be controlled at 3 to 10 times, so that a water-soluble tensile coating coated on the optical fiber will not excessively squeeze the optical fiber after absorbing water to cause the attenuation of the optical fiber over the standard.
    Type: Application
    Filed: September 22, 2021
    Publication date: October 19, 2023
    Applicant: Phichem Corporation
    Inventors: Yan WU, Jianbin YU
  • Patent number: 11767435
    Abstract: Provided is an anti-reflection coating composition. The anti-reflection coating composition includes an active component and a solvent B. The active component includes a matting resin A, a catalyst C, and a crosslinking agent D. The weight average molecular weight of the matting resin A is less than or equal to 20000. Also provided is use of the anti-reflection coating composition.
    Type: Grant
    Filed: December 23, 2021
    Date of Patent: September 26, 2023
    Assignee: PhiChem Corporation
    Inventors: Yun Zhang, Jiaqi Zhao, Fanjie Xu