Patents by Inventor Danfeng Li

Danfeng Li 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: 20250388790
    Abstract: The invention concerns a hot melt adhesive composition comprising: i) a first metallocene-catalyzed propylene-based copolymer; ii) a second metallocene-catalyzed propylene-based copolymer; iii) a polyolefin copolymer selected from the group consisting of: iii-1) acid-grafted polyolefin copolymer; iii-2) a copolymer based on olefins and unsaturated monomers containing acid groups or anhydride groups; and iii-3) mixtures thereof; iv) a tackifier; v) optionally a third metallocene-catalyzed propylene-based copolymer, wherein each of the metallocene-catalyzed propylene-based copolymers i) and ii) comprises, independently of each other, from 1% to 20% by weight of ethylene units.
    Type: Application
    Filed: November 29, 2022
    Publication date: December 25, 2025
    Inventors: Danfeng LI, Xin YE, Jianping SHI
  • Patent number: 12359105
    Abstract: The invention relates to a hot-melt pressure sensitive adhesive composition comprising at least one styrenic block copolymer, at least one tackifying resin, at least one mineral oil and from 4 to 15% by weight of at least one wax selected from the group consisting of paraffin waxes, Fischer-Tropsch waxes, ethylene-vinyl acetate waxes and any mixture thereof, based on the total weight of the hot-melt pressure sensitive adhesive composition. The invention also relates to an article comprising a surface coated with such a hot-melt pressure sensitive adhesive composition, to a use of such a hot-melt pressure sensitive adhesive composition and to a process for preparing such a hot-melt pressure sensitive adhesive composition.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: July 15, 2025
    Assignee: BOSTIK SA
    Inventors: Xin Ye, Peipei He, Danfeng Li
  • Publication number: 20240318047
    Abstract: A hot melt adhesive composition comprises a combination of polymers including a low molecular weight semicrystalline propylene based polymer and a high molecular weight essentially amorphous propylene based polymer, both of which are prepared by using single-site catalysts, along with a wax, a hydrogenated styrene block copolymer, a tackifier, and a plasticizer. The composition has suitable viscosity ranging from 500 cP to 40,000 cP at 177° C. and is useful for a variety of industrial applications where bonding of low surface energy substrates and elastic substrates is encountered, including disposable nonwoven hygienic articles. The cooled adhesive in the laminate does not feel hard but instead has a soft feel, even though the adhesive demonstrates a relatively high Shore A hardness.
    Type: Application
    Filed: February 24, 2022
    Publication date: September 26, 2024
    Inventors: Richard E. HAMANN, Kun WANG, Danfeng LI, Wu YONG
  • Publication number: 20240301258
    Abstract: A hot melt adhesive composition comprises at least one styrene block copolymer, at least one acid modified rubber, and a tackifying resin comprising at least one acid tackifying resin. The hot melt adhesive composition can be used to bond substrates. The invention further relates to an article comprising the hot melt adhesive composition, to the use of a combination of an acid modified rubber and an acid tackifying resin for improving the aged wet adhesiveness of a hot melt adhesive composition, and to the use of a non-acid tackifying resin having a softening point of at least 110° C. for improving the initial adhesiveness of a hot melt adhesive composition comprising a combination of an acid modified rubber and an acid tackifying resin.
    Type: Application
    Filed: March 6, 2024
    Publication date: September 12, 2024
    Inventors: Shangyi FU, Danfeng LI, Yi LUO
  • Publication number: 20230323167
    Abstract: The present invention relates to a pressure sensitive hot melt adhesive, particularly to a pressure sensitive hot melt positioning adhesive for use on feminine sanitary pads or adult incontinent products having improved peel values on fabrics made from Lyocell fibers, particularly eucalyptus-based Lyocell fibers.
    Type: Application
    Filed: August 25, 2021
    Publication date: October 12, 2023
    Inventors: Olivier LAFERTE, Laurianne LIBRALESSO, Stéphanie KOMAR, Clement BELLINI, Jian Ping SHI, Danfeng LI
  • Publication number: 20220325149
    Abstract: The invention relates to a hot-melt pressure sensitive adhesive composition comprising at least one styrenic block copolymer, at least one tackifying resin, at least one mineral oil and from 4 to 15% by weight of at least one wax selected from the group consisting of paraffin waxes, Fischer-Tropsch waxes, ethylene-vinyl acetate waxes and any mixture thereof, based on the total weight of the hot-melt pressure sensitive adhesive composition. The invention also relates to an article comprising a surface coated with such a hot-melt pressure sensitive adhesive composition, to a use of such a hot-melt pressure sensitive adhesive composition and to a process for preparing such a hot-melt pressure sensitive adhesive composition.
    Type: Application
    Filed: July 2, 2020
    Publication date: October 13, 2022
    Inventors: Xin YE, Peipei HE, Danfeng LI
  • Patent number: 8567669
    Abstract: A merchant profile builder (MPB) is provided. The complete merchant profiling process is split into three pieces: Data Preprocessing, Weekly Summary Calculation, and Merchant Profile Calculation. In the Data Preprocessing stage, authorization data and daily fraud data are processed on a weekly basis to yield: an authorization extract file and fraud authorization data, each of which are sorted by a merchant key. In the Weekly Summary Calculation stage, the files output by the Data Preprocessing stage are used as input to compile basic statistics for each merchant based only on data for one week. There are separate weekly summaries for authorizations and fraud authorizations. In the Merchant Profile Calculation stage, the weekly summaries from the 16 most recent weeks are combined together and averages are calculated and output a set of merchant profiles and a set of default profiles.
    Type: Grant
    Filed: February 21, 2007
    Date of Patent: October 29, 2013
    Assignee: Fair Isaac Corporation
    Inventors: David Griegel, Linyu Yang, Danfeng Li, Bo Zhang, Joseph Milana, Zuohua Zhang, Gregory Gancarz
  • Publication number: 20070203732
    Abstract: A merchant profile builder (MPB) is provided. The complete merchant profiling process is split into three pieces: Data Preprocessing, Weekly Summary Calculation, and Merchant Profile Calculation. In the Data Preprocessing stage, authorization data and daily fraud data are processed on a weekly basis to yield: an authorization extract file and fraud authorization data, each of which are sorted by a merchant key. In the Weekly Summary Calculation stage, the files output by the Data Preprocessing stage are used as input to compile basic statistics for each merchant based only on data for one week. There are separate weekly summaries for authorizations and fraud authorizations. In the Merchant Profile Calculation stage, the weekly summaries from the 16 most recent weeks are combined together and averages are calculated and output a set of merchant profiles and a set of default profiles.
    Type: Application
    Filed: February 21, 2007
    Publication date: August 30, 2007
    Inventors: David GRIEGEL, Linyu Yang, Danfeng Li, Bo Zhang, Joseph Milana, Zuohua Zhang, Gregory Gancarz