Patents by Inventor Chih-Feng Wang

Chih-Feng Wang 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).

  • Patent number: 12350907
    Abstract: An impact-resistant polypropylene film and a method for producing the same are provided. The impact-resistant polypropylene film includes two outer layers and a middle layer. Each of the outer layers includes a propylene block polymer. The propylene block polymer includes a propylene monomer and an ethylene-propylene polymer, and the ethylene-propylene polymer is dispersed in the propylene monomer to form a sea-island structure. The sea-island structure includes a sea phase and an island phase, the propylene monomer is defined as the sea phase, and the ethylene-propylene polymer is defined as the island phase. The middle layer includes a propylene block polymer and an ethylene elastomer. Based on 100 parts by weight of the middle layer, a content of the propylene block polymer is 60 to 80 parts by weight, and a content of the ethylene elastomer is 20 to 40 parts by weight.
    Type: Grant
    Filed: December 29, 2022
    Date of Patent: July 8, 2025
    Assignee: NAN YA PLASTICS CORPORATION
    Inventors: Te-Chao Liao, Ching-Yao Yuan, Chih-Feng Wang
  • Publication number: 20250206008
    Abstract: A polyolefin adhesive film includes a support base layer and a bonding adhesive layer formed on the support base layer. The support base layer is a polypropylene film. The bonding adhesive layer includes: a polyolefin copolymer and inorganic particles dispersed in the polyolefin copolymer. The polyolefin copolymer is modified by maleic anhydride, and the inorganic particles are modified by epoxy siloxane. A graft ratio of the maleic anhydride modified on the polyolefin copolymer ranges from 1% to 5%. A weight ratio of the epoxy siloxane modified on the inorganic particles ranges from 0.3% to 4%. When the polyolefin adhesive film undergoes a heating operation, the epoxy siloxane modified on the inorganic particles and the maleic anhydride modified on the polyolefin copolymer undergo a cross-linking reaction, so that a hardness of the bonding adhesive layer is increased.
    Type: Application
    Filed: March 4, 2024
    Publication date: June 26, 2025
    Inventors: TE-CHAO LIAO, CHING-YAO YUAN, Chih-Feng Wang, TENG-KO MA
  • Publication number: 20250065557
    Abstract: A release protection film and a method for manufacturing the same are provided. The method includes: preparing a resin material; subjecting the resin material to an extrusion process and a stretching process, so as to form a resin membrane; and forming an embossed pattern having a depth of from 1 ?m to 5 ?m onto the resin membrane by an embossing roller, so as to form the release protection film. The resin material includes a polyolefin material and a petroleum resin. Based on a total weight of the polyolefin material being 100 phr, an amount of the petroleum resin ranges from 5 phr to 20 phr.
    Type: Application
    Filed: October 29, 2023
    Publication date: February 27, 2025
    Inventors: TE-CHAO LIAO, CHING-YAO YUAN, Chih-Feng Wang, TENG-KO MA
  • Publication number: 20240402404
    Abstract: An infrared filter film layer and an infrared filter structure are provided. The infrared filter film layer includes at least one silicon-based layer, at least one isolation layer, and at least one oxide layer that are stacked with each other. The at least one isolation layer is disposed between the at least one silicon-based layer and the at least one oxide layer. Through this configuration, the infrared filter film layer has good quality, such that an amount of wavelength drift is small in application. The infrared filter structure includes a light-transmitting substrate and the infrared filter film layer.
    Type: Application
    Filed: May 28, 2024
    Publication date: December 5, 2024
    Inventors: CHIH-FENG WANG, KUO-YIN HUANG, WEN-YU WANG, Ke-Peng Chang, YUNG-PENG CHANG, Cheng-Wei Chu
  • Patent number: 12135115
    Abstract: A smart projection vehicle lamp includes laser light sources, two-dimensional MEMS mirrors, focusing lenses, a reflective phosphor plate, a narrow-band blue light reflector, and a lens group. The two-dimensional MEMS mirrors are correspondingly arranged on paths of laser light beams of the laser light sources. The laser light beams are dynamically reflected by the two-dimensional MEMS mirrors. The reflective phosphor plate has a phosphor layer and a reflective layer located on one side of the phosphor layer. The narrow-band blue light reflector is disposed between the focusing lenses and the reflective phosphor plate, and has a reflective band and a transmissive band. The converged laser light beams are reflected by the reflective band and illuminate the reflective phosphor plate. The laser light beams excite the phosphor layer and are mixed into visible light reflected by the reflective layer and passes through the transmissive band to be emitted outward.
    Type: Grant
    Filed: March 22, 2024
    Date of Patent: November 5, 2024
    Assignee: TAIWAN COLOR OPTICS, INC.
    Inventors: Kuo-Yin Huang, Ke-Peng Chang, Chih-Feng Wang, Hsin-An Chen, Yung-Peng Chang
  • Publication number: 20240227369
    Abstract: An impact-resistant polypropylene film and a method for producing the same are provided. The impact-resistant polypropylene film includes two outer layers and a middle layer. Each of the outer layers includes a propylene block polymer. The propylene block polymer includes a propylene monomer and an ethylene-propylene polymer, and the ethylene-propylene polymer is dispersed in the propylene monomer to form a sea-island structure. The sea-island structure includes a sea phase and an island phase, the propylene monomer is defined as the sea phase, and the ethylene-propylene polymer is defined as the island phase. The middle layer includes a propylene block polymer and an ethylene elastomer. Based on 100 parts by weight of the middle layer, a content of the propylene block polymer is 60 to 80 parts by weight, and a content of the ethylene elastomer is 20 to 40 parts by weight.
    Type: Application
    Filed: December 29, 2022
    Publication date: July 11, 2024
    Inventors: TE-CHAO LIAO, CHING-YAO YUAN, CHIH-FENG WANG
  • Publication number: 20240191104
    Abstract: A polyolefin bonding adhesive film includes a support base layer and a bonding adhesive layer formed on a side surface of the support base layer by co-extrusion. The support base layer is a polypropylene film. The bonding adhesive layer is formed of a first polyolefin copolymer modified by maleic anhydride. The first polyolefin copolymer is formed by copolymerization of at least two kinds of C2 to C4 olefin molecules, a first graft ratio of the maleic anhydride grafted onto the first polyolefin copolymer is between 0.5% and 5%, and a first melt index of the first polyolefin copolymer is between 3 g/10 min and 5 g/10 min.
    Type: Application
    Filed: April 9, 2023
    Publication date: June 13, 2024
    Inventors: Te-Chao Liao, Ching-Yao Yuan, Chih-Feng Wang, Teng-Ko Ma
  • Publication number: 20240190116
    Abstract: A polyolefin packaging material includes a first polyolefin polymer film, a second polyolefin polymer film, and a polyolefin bonding adhesive layer. The first polyolefin polymer film is a cast polypropylene film (CPP film). The second polyolefin polymer film is a biaxially oriented polypropylene film (BOPP film). The polyolefin bonding adhesive layer is bonded between the first polyolefin polymer film and the second polyolefin polymer film. The polyolefin bonding adhesive layer is formed of a polyolefin copolymer modified by maleic anhydride, the polyolefin copolymer is formed by copolymerization of at least two kinds of C2 to C4 olefin molecules, a graft ratio of the maleic anhydride grafted onto the polyolefin copolymer is between 0.5% and 5%, and a melt index of the polyolefin copolymer is between 1 g/10 min and 5 g/10 min.
    Type: Application
    Filed: April 6, 2023
    Publication date: June 13, 2024
    Inventors: TE-CHAO LIAO, CHING-YAO YUAN, Chih-Feng Wang, TENG-KO MA
  • Publication number: 20240131827
    Abstract: An impact-resistant polypropylene film and a method for producing the same are provided. The impact-resistant polypropylene film includes two outer layers and a middle layer. Each of the outer layers includes a propylene block polymer. The propylene block polymer includes a propylene monomer and an ethylene-propylene polymer, and the ethylene-propylene polymer is dispersed in the propylene monomer to form a sea-island structure. The sea-island structure includes a sea phase and an island phase, the propylene monomer is defined as the sea phase, and the ethylene-propylene polymer is defined as the island phase. The middle layer includes a propylene block polymer and an ethylene elastomer. Based on 100 parts by weight of the middle layer, a content of the propylene block polymer is 60 to 80 parts by weight, and a content of the ethylene elastomer is 20 to 40 parts by weight.
    Type: Application
    Filed: December 29, 2022
    Publication date: April 25, 2024
    Inventors: TE-CHAO LIAO, CHING-YAO YUAN, CHIH-FENG WANG
  • Publication number: 20240123713
    Abstract: A polyolefin film for an aluminum plastic film and an aluminum plastic film structure are provided. The polyolefin film includes a laminating film, a middle film, and a heat-sealed film. The middle film is disposed between the laminating film and the heat-sealed film. A lamination temperature of the laminating film ranges from 70° C. to 100° C. A material forming the laminating film is a first polyolefin material. The first polyolefin material has a modified group, and a structure of the modified group contains maleic anhydride. A material forming the middle film includes: 50 phr to 90 phr of a propylene block copolymer, 5 phr to 30 phr of an ethylene elastomer, and 5 phr to 20 phr of a propylene random copolymer.
    Type: Application
    Filed: November 30, 2022
    Publication date: April 18, 2024
    Inventors: TE-CHAO LIAO, CHING-YAO YUAN, Chih-Feng Wang
  • Publication number: 20230383113
    Abstract: A polypropylene film used in a cooking bag is provided. The polypropylene film used in the cooking bag is co-extruded to form a three-layered structure, and includes two outer layers and a middle layer arranged therebetween. Each of the outer layers includes a propylene random copolymer, and the propylene random copolymer is formed by aggregation of a propylene monomer and an ethylene monomer. The middle layer includes a propylene block polymer and an ethylene elastomer. The propylene block polymer includes a propylene monomer and an ethylene-propylene polymer, and the ethylene-propylene polymer is dispersed in the propylene monomer to form a sea-island structure. After the polypropylene film used in the cooking bag is placed in an environment having a temperature of 135° C. for 30 minutes, a haze of the polypropylene film used in the cooking bag is less than or equal to 10%.
    Type: Application
    Filed: October 31, 2022
    Publication date: November 30, 2023
    Inventors: TE-CHAO LIAO, CHING-YAO YUAN, Chih-Feng Wang
  • Patent number: 11738545
    Abstract: A breathable and waterproof membrane and a method for manufacturing the same, and a breathable and waterproof fabric are provided. The breathable and waterproof membrane is formed by stretching a polyolefin material. The breathable and waterproof membrane has a density ranging from 0.6 g/cm3 to 0.8 g/cm3. A plurality of micropores are formed on the breathable and waterproof membrane, and the plurality of micropores each has a size smaller than 500 nm. The polyolefin material includes: 60 wt % to 80 wt % of a first polypropylene resin, 15 wt % to 30 wt % of a second polypropylene resin, and 1 wt % to 10 wt % of inorganic particles. The second polypropylene resin is a modified polypropylene resin having a hydrophilic group. The second polypropylene resin is different from the first polypropylene resin.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: August 29, 2023
    Assignee: NAN YA PLASTICS CORPORATION
    Inventors: Te-Chao Liao, Ching-Yao Yuan, Wen-Jui Cheng, Chih-Feng Wang
  • Patent number: 11661492
    Abstract: A white polyester film and a method for manufacturing the same are provided. The method for manufacturing the white polyester film includes: providing a recycled polyester material; physically regenerating a part of the recycled polyester material to form physically regenerated polyester chips having a first intrinsic viscosity; chemically regenerating another part of the recycled polyester material to form chemically regenerated polyester chips having a second intrinsic viscosity less than the first intrinsic viscosity; mixing white regenerated polyester chips, the physically regenerated polyester chips, and the chemically regenerated polyester chips according to a predetermined intrinsic viscosity so as to form a polyester masterbatch material; melting and extruding the polyester masterbatch material to obtain the white polyester film having the predetermined intrinsic viscosity.
    Type: Grant
    Filed: August 13, 2021
    Date of Patent: May 30, 2023
    Assignee: NAN YA PLASTICS CORPORATION
    Inventors: Wen-Cheng Yang, Te-Chao Liao, Chun-Cheng Yang, Chia-Yen Hsiao, Chih-Feng Wang
  • Patent number: 11427390
    Abstract: A fruit and vegetable anti-fog packaging bag, which is produced with a polypropylene multilayer film, is manufactured by a high-speed bag making machine.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: August 30, 2022
    Assignee: NAN YA PLASTICS CORPORATION
    Inventors: Te-Chao Liao, Ching-Yao Yuan, Wen-Jui Cheng, Teng-Ko Ma, Chih-Feng Wang
  • Publication number: 20220243030
    Abstract: A white polyester film and a method for manufacturing the same are provided. The method for manufacturing the white polyester film includes: providing a recycled polyester material; physically regenerating a part of the recycled polyester material to form physically regenerated polyester chips having a first intrinsic viscosity; chemically regenerating another part of the recycled polyester material to form chemically regenerated polyester chips having a second intrinsic viscosity less than the first intrinsic viscosity; mixing white regenerated polyester chips, the physically regenerated polyester chips, and the chemically regenerated polyester chips according to a predetermined intrinsic viscosity so as to form a polyester masterbatch material; melting and extruding the polyester masterbatch material to obtain the white polyester film having the predetermined intrinsic viscosity.
    Type: Application
    Filed: August 13, 2021
    Publication date: August 4, 2022
    Applicant: NAN YA PLASTICS CORPORATION
    Inventors: Wen-Cheng Yang, Te-Chao Liao, Chun-Cheng Yang, Chia-Yen Hsiao, Chih-Feng Wang
  • Publication number: 20220017709
    Abstract: An ultraviolet-absorbing polyester film and a method for manufacturing the same are provided. The ultraviolet-absorbing polyester film includes a physically recycled polyester resin and a chemically recycled polyester resin. The physically recycled polyester resin is formed by a plurality of physically recycled polyester chips. The chemically recycled polyester resin is formed by a plurality of chemically recycled polyester chips. The plurality of chemically recycled polyester chips further includes chemically recycled electrostatic pinning polyester chips. The chemically recycled electrostatic pinning polyester chips contain electrostatic pinning additives, and the electrostatic pinning additives are metal salts. Expressed in percent by weight based on a total weight of the ultraviolet-absorbing polyester film, a content of the electrostatic pinning additives is between 0.005% and 0.1% by weight. The ultraviolet-absorbing polyester film further contains an ultraviolet absorber.
    Type: Application
    Filed: March 17, 2021
    Publication date: January 20, 2022
    Inventors: Wen-Cheng Yang, TE-CHAO LIAO, Chia-Yen Hsiao, Chih-Feng Wang
  • Publication number: 20210331452
    Abstract: A breathable and waterproof membrane and a method for manufacturing the same, and a breathable and waterproof fabric are provided. The breathable and waterproof membrane is formed by stretching a polyolefin material. The breathable and waterproof membrane has a density ranging from 0.6 g/cm3 to 0.8 g/cm3. A plurality of micropores are formed on the breathable and waterproof membrane, and the plurality of micropores each has a size smaller than 500 nm. The polyolefin material includes: 60 wt % to 80 wt % of a first polypropylene resin, 15 wt % to 30 wt % of a second polypropylene resin, and 1 wt % to 10 wt % of inorganic particles. The second polypropylene resin is a modified polypropylene resin having a hydrophilic group. The second polypropylene resin is different from the first polypropylene resin.
    Type: Application
    Filed: April 22, 2021
    Publication date: October 28, 2021
    Inventors: TE-CHAO LIAO, CHING-YAO YUAN, WEN-JUI CHENG, Chih-Feng Wang
  • Patent number: 11021603
    Abstract: A white polyester film with a specific weight of 0.6-1.2 has a three-layered structure containing two outer layers (A) having a combined thickness taking up 2% to 30% of an overall thickness of the film and a middle layer (B), and having air-bubble cells in both the outer layers (A) and the middle layer (B). The outer layers (A) are formed from a polyester resin and inorganic particles. The middle layer (B) is formed of a polyester resin, modified polypropylene resin having a heat distortion temperature above 120° C. and a melt flow index (MI) of 0.2-1 g/10 minutes (at 230° C., with a load of 2.16 kg) via crosslinking with 0.1-3 wt % of peroxide with respect to the weight of the polypropylene resin, and inorganic particles.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: June 1, 2021
    Assignee: NAN YA PLASTICS CORPORATION
    Inventors: Te-Chao Liao, Wen-Cheng Yang, Chun-Che Tsao, Chia-Yen Hsiao, Chih-Feng Wang
  • Publication number: 20210107266
    Abstract: An antibacterial plastic surface material is provided. The antibacterial plastic surface material includes a polyolefin substrate and an antifouling and antibacterial layer. A material of the polyolefin substrate includes 30 wt % to 60 wt % of linear polyethylene and 40 wt % to 70 wt % of propylene homopolymer. The antifouling and antibacterial layer is formed on the polyolefin substrate. The material of the antifouling and antibacterial layer includes at least 70 wt % of a fluorine-containing polymer.
    Type: Application
    Filed: September 1, 2020
    Publication date: April 15, 2021
    Inventors: TE-CHAO LIAO, CHING-YAO YUAN, Chih-Feng Wang
  • Patent number: 10845033
    Abstract: A white light illumination system is provided, including a light source unit, a beam splitter unit, a phosphor unit, a heat dissipation unit, and a diffuse reflective unit. The light source generating unit can generate an approximately collimated light beam along a predetermined transmission path. The beam splitter unit, the phosphor unit, and the diffuse reflective unit are disposed adjacent to one side of the light source unit. The beam splitter unit is located on the predetermined transmission path. The approximately collimated light beam is projected onto the beam splitter unit. The heat dissipation unit is disposed on the phosphor unit.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: November 24, 2020
    Assignee: TAIWAN COLOR OPTICS, INC.
    Inventors: Chih-Feng Wang, Yung-Peng Chang, Hsin-An Chen, Shih-Hsin Chang