Patents by Inventor Naoko Tanji

Naoko Tanji 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: 11674037
    Abstract: A composition contains the following components (A), (B), and (C), the component (A) being at least one melamine salt selected from the group consisting of melamine orthophosphate, melamine pyrophosphate, and melamine polyphosphate, the component (B) being at least one piperazine salt selected from the group consisting of piperazine orthophosphate, piperazine pyrophosphate, and piperazine polyphosphate, and the component (C) being a monohydrate of alumina. As disclosed, it is possible to provide a composition that can impart excellent levels of processability/moldability and flame retardancy to a resin by being mixed with the resin.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: June 13, 2023
    Assignee: ADEKA CORPORATION
    Inventors: Yang Nl, Yutaka Yonezawa, Naoko Tanji
  • Publication number: 20230092624
    Abstract: Provided are a flame retardant composition that provides a flame-retardant synthetic resin composition excellent in flame retardance and in longitudinal and lateral balance in terms of mold shrinkage factor, and a flame-retardant synthetic resin composition using the same and a molded body thereof. A flame retardant composition contains 0.
    Type: Application
    Filed: March 31, 2021
    Publication date: March 23, 2023
    Applicant: ADEKA CORPORATION
    Inventors: Keisuke BANNO, Ayaka MITSUHASHI, Naoko TANJI
  • Patent number: 11566180
    Abstract: Disclosed is a composition that can impart a drip preventing effect together with an excellent heat release suppressing effect to a resin, and that enables the resin to exhibit an excellent color tone, by being mixed with the resin. The composition includes a component (A) and/or a component (B), and a component (C). It is preferable that the composition contains the component (C) in an amount of 0.1 to 50 parts by mass relative to 100 parts by mass of a total of the components (A) and (B). The component (A) is a (poly)phosphate compound represented by General Formula (1). The component (B) is a (poly)phosphate compound represented by General Formula (3). The component (C) is a hydrous magnesium silicate.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: January 31, 2023
    Assignee: ADEKA CORPORATION
    Inventors: Keisuke Banno, Naoko Tanji, Yutaka Yonezawa
  • Patent number: 11345858
    Abstract: A composition includes first, second, and third components. The composition preferably includes 0.1 to 50 parts by mass of the third component with respect to 100 parts by mass in total of the first and second components. The first component is at least one type of melamine salt selected from the group consisting of melamine orthophosphate, melamine pyrophosphate, and melamine polyphosphate. The second component is at least one type of piperazine salt selected from the group consisting of piperazine orthophosphate, piperazine pyrophosphate, and piperazine polyphosphate. The third component is cyanuric acid or zinc cyanurate.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: May 31, 2022
    Assignee: ADEKA CORPORATION
    Inventors: Yang Ni, Yohei Inagaki, Yutaka Yonezawa, Naoko Tanji
  • Publication number: 20220153960
    Abstract: Provided are: a flame retardant composition which can impart excellent flame retardancy to a synthetic resin even when added in a small amount; and a flame-retardant synthetic resin composition which contains the flame retardant composition and a resin and exhibits excellent flame retardancy. The flame retardant composition contains components (A) and (B), wherein (A) is a phosphate-based flame retardant, and (B) is a hindered amine compound having a structure represented by Chemical Formula (1) in the structure. In Chemical Formula (1), * represents a bond, and one or more of the structures represented by Chemical Formula (1) optionally exist in the compound.
    Type: Application
    Filed: March 19, 2020
    Publication date: May 19, 2022
    Applicant: ADEKA CORPORATION
    Inventors: Hisashi SAKURAI, Yutaka YONEZAWA, Naoko TANJI
  • Publication number: 20220112356
    Abstract: Provided are: a resin additive composition containing a specific metal phosphate, which composition has excellent dispersibility in a resin even when made into a pellet form and exhibits a desired physical property improving effect when incorporated into a resin; and a synthetic resin composition using the same. The resin additive composition contains, with respect to 100 parts by mass of (A) sodium-2,2?-methylene-bis(4,6-di-tert-butylphenyl)phosphate: 25 to 400 parts by mass of (B) a lithium phosphate compound represented by the following Formula (1); and 10 to 300 parts by mass of (C) a fatty acid metal salt represented by the following Formula (2). The component (C) is incorporated in an amount of 10 parts by mass to 50 parts by mass with respect to a total of 100 parts by mass of the components (A) and (B).
    Type: Application
    Filed: December 21, 2021
    Publication date: April 14, 2022
    Applicant: ADEKA CORPORATION
    Inventors: Mitsuru FUKUSHIMA, Naoko TANJI, Tomonori SHIMIZU
  • Patent number: 11292892
    Abstract: Disclosed is a flame retardant composition containing (A) an amine phosphate and (B) a zinc glycerolate. It is preferred that component (A) contain an amine pyrophosphate and that the mass ratio of component (A) to component (B) be 99.99:0.01 to 60:40. The flame retardant composition preferably further contains (C) zinc oxide, wherein the content of component (C) is 0.01 to 10 parts by mass per 100 parts by mass of the sum of components (A) and (B). The flame retardant composition preferably further contains (D) hydrotalcite, wherein the content of component (D) is 0.01 to 5 parts by mass per 100 parts by mass of the sum of components (A) and (B).
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: April 5, 2022
    Assignee: ADEKA CORPORATION
    Inventors: Yang Ni, Yutaka Yonezawa, Naoko Tanji
  • Publication number: 20220064409
    Abstract: Provided are: an additive composition which can impart excellent heat resistance and flame retardancy to a synthetic resin; a flame-retardant synthetic resin composition containing the same; and a molded article thereof. The additive composition contains: as a component (A), at least one ammonium polyphosphate; and as a component (B), at least one selected from the group consisting of compounds represented by Formula (1) and compounds represented by Formula (2). In Formula (1), R1, R2 and R3 each independently represent a divalent hydrocarbon group having 1 to 3 carbon atoms, and, in Formula (2), R4, R5 and R6 each independently represent a divalent hydrocarbon group having 1 to 3 carbon atoms, and R7, R8 and R9 each independently represent a hydrogen atom or a monovalent hydrocarbon group having 1 to 4 carbon atoms.
    Type: Application
    Filed: August 8, 2019
    Publication date: March 3, 2022
    Applicant: ADEKA CORPORATION
    Inventors: Naoko TANJI, Yutaka YONEZAWA, Hisashi SAKURAI, Ayaka MITSUHASHI, Marisa KUWABARA, Keisuke BANNO
  • Patent number: 11242445
    Abstract: Provided are: a resin additive composition containing a specific metal phosphate, which composition has excellent dispersibility in a resin even when made into a pellet form and exhibits a desired physical property improving effect when incorporated into a resin; and a synthetic resin composition using the same. The resin additive composition contains, with respect to 100 parts by mass of (A) sodium-2,2?-methylene-bis(4,6-di-tert-butylphenyl)phosphate: 25 to 400 parts by mass of (B) a lithium phosphate compound represented by the following Formula (1); and 10 to 300 parts by mass of (C) a fatty acid metal salt represented by the following Formula (2). The component (C) is incorporated in an amount of 10 parts by mass to 50 parts by mass with respect to a total of 100 parts by mass of the components (A) and (B).
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: February 8, 2022
    Assignee: ADEKA CORPORATION
    Inventors: Mitsuru Fukushima, Naoko Tanji, Tomonori Shimizu
  • Publication number: 20210189244
    Abstract: Disclosed is a composition that can impart a drip preventing effect together with an excellent heat release suppressing effect to a resin, and that enables the resin to exhibit an excellent color tone, by being mixed with the resin. The composition includes a component (A) and/or a component (B), and a component (C). It is preferable that the composition contains the component (C) in an amount of 0.1 to 50 parts by mass relative to 100 parts by mass of a total of the components (A) and (B). The component (A) is a (poly)phosphate compound represented by General Formula (1). The component (B) is a (poly)phosphate compound represented by General Formula (3). The component (C) is a hydrous magnesium silicate.
    Type: Application
    Filed: October 31, 2018
    Publication date: June 24, 2021
    Inventors: Keisuke BANNO, Naoko TANJI, Yutaka YONEZAWA
  • Publication number: 20210171833
    Abstract: A heat-resistant composition useful as a flame retardant, a flame retardant composition containing the same, and a flame-retardant resin composition are provided. The composition contains 20 to 50 parts by mass of a specific melamine salt as component (A), 50 to 80 parts by mass of a specific piperazine salt as component (B), and 1 to 50 parts by mass of a phosphoric ester compound having a specific structure as component (C), wherein the sum of the components (A) and (B) is 100 parts by mass.
    Type: Application
    Filed: December 7, 2018
    Publication date: June 10, 2021
    Inventors: Yang NI, Yutaka YONEZAWA, Naoko TANJI
  • Patent number: 10968336
    Abstract: A flame retardant composition contains: 20-50 parts by mass of at least one melamine salt selected from the group consisting of melamine orthophosphate, melamine pyrophosphate, and melamine polyphosphate, as component (A); 50-80 parts by mass of at least one piperazine salt selected from the group consisting of piperazine orthophosphate, piperazine pyrophosphate, and piperazine polyphosphate, as component (B), where the total of component (A) and component (B) is 100 parts by mass; and 1-50 parts by mass of ?-dextrin as component (C).
    Type: Grant
    Filed: July 4, 2017
    Date of Patent: April 6, 2021
    Assignee: ADEKA CORPORATION
    Inventors: Yang Ni, Yutaka Yonezawa, Naoko Tanji
  • Publication number: 20200277316
    Abstract: Provided is a flame retardant composition containing at least one phosphate ester represented by general formula (1), wherein the total content of phosphate esters in which n=1, 2, 3, 4, or 5 among the phosphate esters is 99-100 mass %, and the content of phosphate esters represented by general formula (1) in which n=1 is at least 60 mass % and less than 70 mass % with respect to the total amount of the phosphate esters (in formula (1), R1 and R2 each independently represent a hydrogen atom or a methyl group, and n represents a number of 1, 2, 3, 4, 5, 6 or 7).
    Type: Application
    Filed: September 21, 2018
    Publication date: September 3, 2020
    Inventors: Fumihiko SATO, Hisashi SAKURAI, Genta KOKURA, Naoko TANJI
  • Patent number: 10738159
    Abstract: A flame-retardant thermoplastic polyurethane resin composition is provided, containing: a thermoplastic polyurethane resin; at least one melamine salt selected from the group consisting of melamine orthophosphate, melamine pyrophosphate, and melamine polyphosphate; at least one piperazine salt selected from the group consisting of piperazine orthophosphate, piperazine pyrophosphate, and piperazine polyphosphate; and wet process silica having an oil absorption of 200 ml/100 g or more. The composition preferably contains zinc oxide.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: August 11, 2020
    Assignee: ADEKA CORPORATION
    Inventors: Yang Ni, Naoko Tanji, Yutaka Yonezawa, Yohei Inagaki
  • Publication number: 20200224100
    Abstract: A composition contains an amine phosphate (A) and melamine cyanurate (B). In the composition, it is preferable that the component (A) contains components (A-1) and (A-2) below. The component (A-1) is at least one melamine salt selected from the group consisting of melamine orthophosphate, melamine pyrophosphate, and melamine polyphosphate. The component (A-2) is at least one piperazine salt selected from the group consisting of piperazine orthophosphate, piperazine pyrophosphate, and piperazine polyphosphate. It is possible to provide a composition that can impart a drip prevention effect and excellent flame retardancy to a resin and can provide a molded article with good surface smoothness, by being mixed with the resin.
    Type: Application
    Filed: August 23, 2018
    Publication date: July 16, 2020
    Inventors: Yang NI, Yohei INAGAKI, Yutaka YONEZAWA, Naoko TANJI
  • Publication number: 20200165448
    Abstract: A composition contains the following components (A), (B), and (C), the component (A) being at least one melamine salt selected from the group consisting of melamine orthophosphate, melamine pyrophosphate, and melamine polyphosphate, the component (B) being at least one piperazine salt selected from the group consisting of piperazine orthophosphate, piperazine pyrophosphate, and piperazine polyphosphate, and the component (C) being a monohydrate of alumina. As disclosed, it is possible to provide a composition that can impart excellent levels of processability/moldability and flame retardancy to a resin by being mixed with the resin.
    Type: Application
    Filed: August 22, 2018
    Publication date: May 28, 2020
    Inventors: Yang NI, Yutaka YONEZAWA, Naoko TANJI
  • Publication number: 20200148954
    Abstract: A composition includes first, second, and third components. The composition preferably includes 0.1 to 50 parts by mass of the third component with respect to 100 parts by mass in total of the first and second components. The first component is at least one type of melamine salt selected from the group consisting of melamine orthophosphate, melamine pyrophosphate, and melamine polyphosphate. The second component is at least one type of piperazine salt selected from the group consisting of piperazine orthophosphate, piperazine pyrophosphate, and piperazine polyphosphate. The third component is cyanuric acid or zinc cyanurate.
    Type: Application
    Filed: June 14, 2018
    Publication date: May 14, 2020
    Inventors: Yang NI, Yohei INAGAKI, Yutaka YONEZAWA, Naoko TANJI
  • Patent number: 10577483
    Abstract: Provided is a clarifying agent composition which is capable of yielding a molded article having excellent transparency whose initial coloration is suppressed. The clarifying agent composition is characterized by comprising 1.0 to 10 parts by mass of a colorant with respect to 100 parts by mass of a clarifying agent represented by the following Formula (1): (wherein, R1 to R4 each independently represent a hydrogen atom or an alkyl group having 1 to 9 carbon atoms; R5 represents a hydrogen atom or a methyl group; n represents 1 or 2; and M represents an alkali metal when n is 1, or Al(OH) when n is 2).
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: March 3, 2020
    Assignee: ADEKA CORPORATION
    Inventors: Takuya Maeda, Atsushi Sakai, Naoko Tanji, Naoshi Kawamoto
  • Publication number: 20200048433
    Abstract: Disclosed is a flame retardant composition containing (A) an amine phosphate and (B) a zinc glycerolate. It is preferred that component (A) contain an amine pyrophosphate and that the mass ratio of component (A) to component (B) be 99.99:0.01 to 60:40. The flame retardant composition preferably further contains (C) zinc oxide, wherein the content of component (C) is 0.01 to 10 parts by mass per 100 parts by mass of the sum of components (A) and (B). The flame retardant composition preferably further contains (D) hydrotalcite, wherein the content of component (D) is 0.01 to 5 parts by mass per 100 parts by mass of the sum of components (A) and (B).
    Type: Application
    Filed: May 15, 2018
    Publication date: February 13, 2020
    Inventors: Yang NI, Yutaka YONEZAWA, Naoko TANJI
  • Publication number: 20190256780
    Abstract: Disclosed is a flame-retardant synthetic resin composition containing: 20 to 50 parts by mass of at least one melamine salt selected from the group consisting of melamine orthophosphate, melamine pyrophosphate, and melamine polyphosphate (component (A)); 50 to 80 parts by mass of at least one piperazine salt selected from the group consisting of piperazine orthophosphate, piperazine pyrophosphate, and piperazine polyphosphate (component (B)), provided that the sum of components (A) and (B) is 100 parts by mass; and 1 to 50 parts by mass of a compound represented by general formula (1) (component (C)): wherein R1 represents an aliphatic or aromatic monocarboxylic acid residue.
    Type: Application
    Filed: June 5, 2017
    Publication date: August 22, 2019
    Inventors: Yang NI, Hisashi SAKURAI, Tatsuya SHIMIZU, Yutaka YONEZAWA, Naoko TANJI