Patents by Inventor Shinsuke MIYAZAWA
Shinsuke MIYAZAWA 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).
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Patent number: 11891489Abstract: Provided is a film for a capacitor that can improve dielectric strength retention at high temperatures and can also improve metal vapor deposition properties and formability. The film for a capacitor contains a hydrogenated dicyclopentadiene ring-opened polymer that is crystalline and has a heat shrinkage ratio of not less than 0.01% and not more than 1.0% when heated at 200° C. for 10 minutes, a plane orientation factor of 0.01 or more, a density of 1.03×106 g/m3 or more, and a thickness of 15.0 ?m or less.Type: GrantFiled: February 15, 2019Date of Patent: February 6, 2024Assignee: ZEON CORPORATIONInventors: Ayako Kato, Shinsuke Miyazawa
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Patent number: 11649348Abstract: A medicine container which absorbs very little protein over time is manufactured using a resin composition including 50 to 99 wt % of a norbornene-based polymer, and 1 to 50 wt % of a hydrogenated styrene-based thermoplastic elastomer, a content of a low-molecular-weight component having a weight average molecular weight of 1000 or less in the resin composition being 3 wt % or less.Type: GrantFiled: November 29, 2013Date of Patent: May 16, 2023Assignee: ZEON CORPORATIONInventors: Taichi Sawaguchi, Satoshi Adachi, Shinsuke Miyazawa, Nozomi Yabuki
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Publication number: 20230136721Abstract: A resin composition contains: a resin including one or more among a norbornene-based polymer, a monocyclic cycloolefin-based polymer, a cyclic conjugated diene-based polymer, a vinyl alicyclic hydrocarbon polymer, and hydrogenated products thereof; and a conductive fibrous filler having an aspect ratio of not less than 5 and not more than 500.Type: ApplicationFiled: August 10, 2021Publication date: May 4, 2023Applicant: ZEON CORPORATIONInventor: Shinsuke MIYAZAWA
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Publication number: 20230110068Abstract: Disclosed is a method of manufacturing a non-woven fabric made of fibers containing a crystalline alicyclic structure-containing resin. The method includes; a step A of melting the crystalline alicyclic structure-containing resin; and a step B of shaping the melted crystalline alicyclic structure-containing resin into the non-woven fabric using a melt-blowing machine. The non-woven fabric has a pore diameter as measured by a bubble point method of 5 ?m or less.Type: ApplicationFiled: October 17, 2022Publication date: April 13, 2023Applicant: ZEON CORPORATIONInventor: Shinsuke MIYAZAWA
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Patent number: 11325287Abstract: A shaping material contains a crystalline alicyclic structure-containing resin. More specifically, the crystalline alicyclic structure-containing resin in the shaping material has a melting point of 200° C. or higher, and content of chlorobenzene-soluble components in the shaping material is 1,000 ppm or less as an o-dichlorobenzene-equivalent value based on gas chromatography analysis with o-dichlorobenzene as a standard substance.Type: GrantFiled: March 19, 2018Date of Patent: May 10, 2022Assignee: ZEON CORPORATIONInventors: Shinsuke Miyazawa, Satoshi Yamada, Ayako Kato, Eito Ariura
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Publication number: 20210301079Abstract: Provided is a shaping material with which a shaped product having excellent flame retardancy can be formed. The shaping material contains a hydrogenated cycloolefin ring-opened polymer and an organophosphinate flame retardant. The organophosphinate flame retardant is either or both of a compound indicated by the following formula (I) and a compound indicated by the following formula (II). Moreover, the organophosphinate flame retardant has an average dispersion diameter of 10 ?m or less.Type: ApplicationFiled: June 18, 2019Publication date: September 30, 2021Applicant: ZEON CORPORATIONInventor: Shinsuke MIYAZAWA
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Publication number: 20210079183Abstract: Provided is a film for a capacitor that can improve dielectric strength retention at high temperatures and can also improve metal vapor deposition properties and formability. The film for a capacitor contains a hydrogenated dicyclopentadiene ring-opened polymer that is crystalline and has a heat shrinkage ratio of not less than 0.01% and not more than 1.0% when heated at 200° C. for 10 minutes, a plane orientation factor of 0.01 or more, a density of 1.03×106 g/m3 or more, and a thickness of 15.0 ?m or less.Type: ApplicationFiled: February 15, 2019Publication date: March 18, 2021Applicant: ZEON CORPORATIONInventors: Ayako KATO, Shinsuke MIYAZAWA
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Publication number: 20200398201Abstract: Disclosed is a non-woven fabric that can provide a filter capable of achieving a high collection rate, low pressure loss, and long-term use. The non-woven fabric disclosed herein is made of fibers containing a crystalline alicyclic structure-containing resin, and has a pore diameter as measured by a bubble point method of 5 ?m or less.Type: ApplicationFiled: February 15, 2019Publication date: December 24, 2020Applicant: ZEON CORPORATIONInventor: Shinsuke MIYAZAWA
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Patent number: 10844162Abstract: Provided is a resin composition containing a hydrogenated crystalline dicyclopentadiene ring-opening polymer and a nucleator, wherein a content of the nucleator is 0.01 to 0.50 part by weight based on 100 parts by weight of the hydrogenated crystalline dicyclopentadiene ring-opening polymer, and a resin formed article comprising a hydrogenated crystalline dicyclopentadiene ring-opening polymer and a nucleator, wherein a content of the nucleator is 0.01 to 0.50 part by weight based on 100 parts by weight of the hydrogenated crystalline dicyclopentadiene ring-opening polymer. The resin composition containing a hydrogenated crystalline dicyclopentadiene ring-opening polymer is suitably used as a raw material for a low-polluting resin formed article, and a low-polluting resin formed article containing the hydrogenated crystalline dicyclopentadiene ring-opening polymer.Type: GrantFiled: July 20, 2017Date of Patent: November 24, 2020Assignee: ZEON CORPORATIONInventors: Shinsuke Miyazawa, Ayako Kato
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Patent number: 10767019Abstract: The invention is a resin composition containing following polymer (A) and polymer (B), wherein a content of the polymer (A) is 1 to 80 wt % based on the total weight of the polymer (A) and the polymer (B), polymer (A) is a alicyclic structure-containing hydrogenated polymer having a heat distortion temperature of 170° C. or higher, polymer (B) is a polymer incompatible with the polymer (A) and having a heat distortion temperature of lower than 170° C., a microporous film formed by using the resin composition, a separator including the microporous film, and a secondary battery having the separator. One aspect of the invention provides a resin composition suitably used as a raw material for a separator of a secondary battery excellent in safety, a microporous film obtained by forming the resin composition, a separator including the microporous film, and a secondary battery having the separator.Type: GrantFiled: September 20, 2016Date of Patent: September 8, 2020Assignee: ZEON CORPORATIONInventor: Shinsuke Miyazawa
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Publication number: 20200269477Abstract: A shaping material contains a crystalline alicyclic structure-containing resin. More specifically, the crystalline alicyclic structure-containing resin in the shaping material has a melting point of 200° C. or higher, and content of chlorobenzene-soluble components in the shaping material is 1,000 ppm or less as an o-dichlorobenzene-equivalent value based on gas chromatography analysis with o-dichlorobenzene as a standard substance.Type: ApplicationFiled: March 19, 2018Publication date: August 27, 2020Applicant: ZEON CORPORATIONInventors: Shinsuke MIYAZAWA, Satoshi YAMADA, Ayako KATO, Eito ARIURA
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Patent number: 10669398Abstract: The present invention is a flame-retardant resin composition comprising a cycloolefin-based polymer and a halogen-containing flame retardant selected from a group consisting of a halogenated bisimide compound and a halogen-containing styrene-based resin, and may be comprising a halogen-active species scavenger, wherein a content of the halogen-containing flame retardant is 10 to 80 parts by weight based on 100 parts by weight of the cycloolefin-based polymer, and a content of the halogen-active species scavenger is less than 25 parts by weight based on 100 parts by weight of the halogen-containing flame retardant, and a resin formed article. One aspect of the invention provides a flame-retardant resin composition having excellent flame retardance, low dielectric constant and low dielectric loss tangent, and a resin formed article produced by forming this flame-retardant resin composition.Type: GrantFiled: March 8, 2016Date of Patent: June 2, 2020Assignee: ZEON CORPORATIONInventors: Ayako Kato, Shinsuke Miyazawa
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Patent number: 10529494Abstract: The present invention is a film capacitor comprising a dielectric film and a metal layer, the dielectric film being a resin film obtained by stretching an unstretched film produced using a crystalline hydrogenated dicyclopentadiene ring-opening polymer, and heating the resulting stretched film, and the resin film having a softening point of 250 to 320° C., a thermal shrinkage ratio of 0.01 to 5.0% when heated at 200° C. for 10 minutes, a loss tangent (tan ?) of 0.0001 to 0.0010, and a coefficient of static friction of 0.01 to 1.00. The present invention provides a film capacitor that includes a resin film as a dielectric film, the resin film exhibiting excellent heat resistance, excellent withstand voltage properties, and excellent workability.Type: GrantFiled: September 24, 2015Date of Patent: January 7, 2020Assignee: ZEON CORPORATIONInventors: Shinsuke Miyazawa, Ayako Kato
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Publication number: 20190284333Abstract: Provided is a resin composition containing a hydrogenated crystalline dicyclopentadiene ring-opening polymer and a nucleator, wherein a content of the nucleator is 0.01 to 0.50 part by weight based on 100 parts by weight of the hydrogenated crystalline dicyclopentadiene ring-opening polymer, and a resin formed article comprising a hydrogenated crystalline dicyclopentadiene ring-opening polymer and a nucleator, wherein a content of the nucleator is 0.01 to 0.50 part by weight based on 100 parts by weight of the hydrogenated crystalline dicyclopentadiene ring-opening polymer. The resin composition containing a hydrogenated crystalline dicyclopentadiene ring-opening polymer is suitably used as a raw material for a low-polluting resin formed article, and a low-polluting resin formed article containing the hydrogenated crystalline dicyclopentadiene ring-opening polymer.Type: ApplicationFiled: July 20, 2017Publication date: September 19, 2019Applicant: ZEON CORPORATIONInventors: Shinsuke MIYAZAWA, Ayako KATO
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Patent number: 10233301Abstract: The present invention is a polymer composition comprising a hydrogenated crystalline cycloolefin ring-opening polymer (A) that comprises a repeating unit derived from a polycyclic norbornene-based monomer that includes three or more rings, 5 to 100 parts by weight of a glass filler (B) based on 100 parts by weight of the hydrogenated crystalline cycloolefin ring-opening polymer (A), and 5 to 20 parts of a metal oxide (C) based on 100 parts by weight of the hydrogenated crystalline cycloolefin ring-opening polymer (A), and a formed article. The polymer composition according to the present invention exhibits excellent electrical properties (low dielectric loss tangent), excellent adhesion to plating, and excellent reflow heat resistance, and can maintain strength even when subjected to high-temperature/high-humidity conditions.Type: GrantFiled: July 30, 2015Date of Patent: March 19, 2019Assignee: ZEON CORPORATIONInventors: Masatsugu Kato, Shinsuke Miyazawa
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Patent number: 10086588Abstract: A resin material including a hydrogenated crystalline polar group-containing dicyclopentadiene ring-opening polymer and a hydrogenated crystalline non-polar dicyclopentadiene ring-opening polymer in a weight ratio (hydrogenated crystalline polar group-containing dicyclopentadiene ring-opening polymer:hydrogenated crystalline non-polar dicyclopentadiene ring-opening polymer) of 100:0 to 1:99, the hydrogenated crystalline polar group-containing dicyclopentadiene ring-opening polymer being obtained by melt-mixing a hydrogenated crystalline non-polar dicyclopentadiene ring-opening polymer, a radical initiator, and a polar group-containing compound that includes an ethylenically unsaturated bond, the resin material including a structural unit derived from the polar group-containing compound that includes an ethylenically unsaturated bond in a ratio of 0.05 to 3.Type: GrantFiled: December 19, 2014Date of Patent: October 2, 2018Assignee: ZEON CORPORATIONInventor: Shinsuke Miyazawa
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Publication number: 20180179341Abstract: The invention is a resin composition containing following polymer (A) and polymer (B), wherein a content of the polymer (A) is 1 to 80 wt % based on the total weight of the polymer (A) and the polymer (B). Polymer (A): an alicyclic structure-containing hydrogenated polymer having a heat distortion temperature of 170° C. or higher Polymer (B): a polymer incompatible with the polymer (A) and having a heat distortion temperature of lower than 170° C., and A microporous film formed by using the resin composition, and A separator including the microporous film, and A secondary battery having the separator. One aspect of the invention provides a resin composition suitably used as a raw material for a separator of a secondary battery excellent in safety, a microporous film obtained by forming the resin composition, a separator including the microporous film, and a secondary battery having the separator.Type: ApplicationFiled: September 20, 2016Publication date: June 28, 2018Applicant: ZEON CORPORATIONInventor: Shinsuke MIYAZAWA
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Publication number: 20180105689Abstract: Provided is a resin composition comprising 50 to 80 wt % of a norbornene-based polymer, and 20 to 50 wt % of a hydrogenated styrene-based thermoplastic elastomer, a content of a low-molecular-weight component having a molecular weight of 1000 or less in the resin composition being 3 wt % or less, in which the hydrogenated styrene-based thermoplastic elastomer is an aromatic vinyl-conjugated diene block copolymer having a styrene content of 40 wt % or more, or a block copolymer that includes an aromatic vinyl compound-based polymer block and an isobutylene-based polymer block having a styrene content of 15 wt % or more. Also, a medical drug container that shows very low protein adsorption with the passage of time is produced using such a resin composition.Type: ApplicationFiled: December 18, 2017Publication date: April 19, 2018Applicant: ZEON CORPORATIONInventors: Taichi SAWAGUCHI, Satoshi ADACHI, Shinsuke MIYAZAWA, Nozomi YABUKI
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Publication number: 20180044506Abstract: The present invention is a flame-retardant resin composition comprising a cycloolefin-based polymer and a halogen-containing flame retardant selected from a group consisting of a halogenated bisimide compound and a halogen-containing styrene-based resin, and may be comprising a halogen-active species scavenger, wherein a content of the halogen-containing flame retardant is 10 to 80 parts by weight based on 100 parts by weight of the cycloolefin-based polymer, and a content of the halogen-active species scavenger is less than 25 parts by weight based on 100 parts by weight of the halogen-containing flame retardant, and a resin formed article. One aspect of the invention provides a flame-retardant resin composition having excellent flame retardance, low dielectric constant and low dielectric loss tangent, and a resin formed article produced by forming this flame-retardant resin composition.Type: ApplicationFiled: March 8, 2016Publication date: February 15, 2018Applicant: ZEON CORPORATIONInventors: Ayako KATO, Shinsuke MIYAZAWA
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Publication number: 20170321030Abstract: The present invention is a polymer composition comprising a hydrogenated crystalline cycloolefin ring-opening polymer (A) that comprises a repeating unit derived from a polycyclic norbornene-based monomer that includes three or more rings, 5 to 100 parts by weight of a glass filler (B) based on 100 parts by weight of the hydrogenated crystalline cycloolefin ring-opening polymer (A), and 5 to 20 parts of a metal oxide (C) based on 100 parts by weight of the hydrogenated crystalline cycloolefin ring-opening polymer (A), and a formed article. The polymer composition according to the present invention exhibits excellent electrical properties (low dielectric loss tangent), excellent adhesion to plating, and excellent reflow heat resistance, and can maintain strength even when subjected to high-temperature/high-humidity conditions.Type: ApplicationFiled: July 30, 2015Publication date: November 9, 2017Applicant: ZEON CORPORATIONInventors: Masatsugu KATO, Shinsuke MIYAZAWA