Patents by Inventor Masuo Iwata
Masuo Iwata 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: 10161064Abstract: There is provided a fiber for a wetlaid non-woven fabric, said fiber can be the basis ingredient of a paper that maintains uniform mass per unit area and fiber dispersion and has unprecedented bulkiness. The fiber for a wetlaid non-woven fabric has 30 to 100 wt % of apparently crimping fibers with a fiber diameter of from 3 to 40 ?m and 0 to 70 wt % of latently crimping fibers with a fiber diameter of from 3 to 40 ?m.Type: GrantFiled: February 13, 2008Date of Patent: December 25, 2018Assignees: ES FiberVisions Co., Ltd., ES FiberVisions Hong Kong Limited, ES FiberVisions LP, ES FiberVisions ApSInventors: Takayuki Nishitani, Masuo Iwata
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Patent number: 9506173Abstract: An electro-chargeable fiber includes a thermoplastic resin fiber having a nonionic fiber finish containing at least one major component selected from the group consisting of (a) at least one sorbitan fatty acid ester having formula (I) or formula (II) and (b) polyoxyalkylene alkyl ether having formula (III), wherein the nonionic fiber finish is present in an amount of 0.01-1.Type: GrantFiled: May 17, 2005Date of Patent: November 29, 2016Assignee: JNC FIBERS CORPORATIONInventors: Masuo Iwata, Takayuki Nishitani
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Patent number: 8105654Abstract: To provide thermoadhesive conjugate fibers, nonwoven fabrics and cellulosic fiber blended nonwoven fabrics employing them, and wipers and absorbers employing the fabrics, thermoadhesive conjugate fibers comprise a thermoplastic resin (I) containing a modified polyolefin with at least one type of reactive functional group as a first component and having a second component composed of a thermoplastic resin (II) with a higher melting point than the thermoplastic resin (I) of the first component combined in a conjugate therewith, the first component being formed continuously along the length of at least a portion of the fiber surface, wherein the fiber surfaces are coated with a fiber treating agent containing a multifunctional compound capable of reacting with the reactive functional group of the modified polyolefin.Type: GrantFiled: November 3, 2008Date of Patent: January 31, 2012Assignees: Chisso Corporation, Chisso Polypro Fiber Compound Ltd.Inventors: Yoshihiro Nakai, Masuo Iwata
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Publication number: 20090324947Abstract: There is provided a fiber for a wetlaid non-woven fabric, said fiber can be the basis ingredient of a paper that maintains uniform mass per unit area and fiber dispersion and has unprecedented bulkiness. The fiber for a wetlaid non-woven fabric has 30 to 100 wt % of apparently crimping fibers with a fiber diameter of from 3 to 40 ?m and 0 to 70 wt % of latently crimping fibers with a fiber diameter of from 3 to 40 ?m.Type: ApplicationFiled: February 13, 2008Publication date: December 31, 2009Applicants: ES FIBERVISIONS CO., LTD., ES FIBERVISIONS HONG KONG LIMITED, ES FIBERVISIONS LP, ES FIBERVISIONS APSInventors: Takayuki Nishitani, Masuo Iwata
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Publication number: 20090061709Abstract: To provide thermoadhesive conjugate fibers, nonwoven fabrics and cellulosic fiber blended nonwoven fabrics employing them, and wipers and absorbers employing the fabrics, thermoadhesive conjugate fibers comprise a thermoplastic resin (I) containing a modified polyolefin with at least one type of reactive functional group as a first component and having a second component composed of a thermoplastic resin (II) with a higher melting point than the thermoplastic resin (I) of the first component combined in a conjugate therewith, the first component being formed continuously along the length of at least a portion of the fiber surface, wherein the fiber surfaces are coated with a fiber treating agent containing a multifunctional compound capable of reacting with the reactive functional group of the modified polyolefin.Type: ApplicationFiled: November 3, 2008Publication date: March 5, 2009Applicants: CHISSO CORPORATION, CHISSO POLYPRO FIBER COMPANY LIMITEDInventors: Yoshihiro Nakai, Masuo Iwata
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Publication number: 20050268817Abstract: An electro-chargeable fiber includes a thermoplastic resin fiber having a nonionic fiber finish containing at least one major component selected from the group consisting of (a) at least one sorbitan fatty acid ester having formula (I) or formula (II) and (b) polyoxyalkylene alkyl ether having formula (III), wherein the nonionic fiber finish is present in an amount of 0.01-1.Type: ApplicationFiled: May 17, 2005Publication date: December 8, 2005Applicants: CHISSO CORPORATION, CHISSO POLYPRO FIBER COMPANY LIMITEDInventors: Masuo Iwata, Takayuki Nishitani
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Patent number: 6572684Abstract: To provide chargeable tow and a laminate thereof, which can be produced with no restriction by the production or processing method, and without troubles such as twining on a roll or single thread snapping caused by static electricity generated in the production steps. Tow, in which the value (D/W) obtained by dividing the total fineness of tow (D) by the tow width (W) is 1,000 to 8,000 dtex/mm, is produced by making a fiber-processing agent adhere thereto, preferably using a particular amount of the agent, wherein the agent has a particular structure and contains a polyoxyethylene higher fatty acid ester and a sorbitan fatty acid ester in a particular blending ratio.Type: GrantFiled: December 27, 2001Date of Patent: June 3, 2003Assignees: Chisso Corporation, Chisso Polypro Fiber Company LimitedInventors: Masuo Iwata, Kanemitsu Fuchigami
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Publication number: 20030064651Abstract: To provide thermoadhesive conjugate fibers, nonwoven fabrics and cellulosic fiber blended nonwoven fabrics employing them, and wipers and absorbers employing the fabrics, thermoadhesive conjugate fibers comprise a thermoplastic resin (I) containing a modified polyolefin with at least one type of reactive functional group as a first component and having a second component composed of a thermoplastic resin (II) with a higher melting point than the thermoplastic resin (I) of the first component combined in a conjugate therewith, the first component being formed continuously along the length of at least a portion of the fiber surface, wherein the fiber surfaces are coated with a fiber treating agent containing a multifunctional compound capable of reacting with the reactive functional group of the modified polyolefin.Type: ApplicationFiled: May 24, 2002Publication date: April 3, 2003Applicant: CHISSO CORPORATIONInventors: Yoshihiro Nakai, Masuo Iwata
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Publication number: 20020119312Abstract: To provide chargeable tow and a laminate thereof, which can be produced with no restriction by the production or processing method, and without troubles such as twining on a roll or single thread snapping caused by static electricity generated in the production steps. Tow, in which the value (D/W) obtained by dividing the total fineness of tow (D) by the tow width (W) is 1,000 to 8,000 dtex/mm, is produced by making a fiber-processing agent adhere thereto, preferably using a particular amount of the agent, wherein the agent has a particular structure and contains a polyoxyethylene higher fatty acid ester and a sorbitan fatty acid ester in a particular blending ratio.Type: ApplicationFiled: December 27, 2001Publication date: August 29, 2002Applicant: Chisso Corporation and Chisso Polypro Fiber Company LimitedInventors: Masuo Iwata, Kanemitsu Fuchigami
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Patent number: 6436855Abstract: A hydrophilic fiber comprising a thermoplastic resin, wherein 0.1-1.5% by weight of a fiber-finishing agent adheres to the fiber, the fiber-finishing agent containing 50-80% by weight of component A consisting of polyoxyethylene alkyl ether represented by the following general formula (1), 10-40% by weight of component B consisting of at least one quaternary ammonium phosphate salt selected from a group of salts represented by following general formulas (2) and (3), and 3-20% by weight of component C consisting of polyorganosiloxane represented by the following general formula (4).Type: GrantFiled: September 11, 2000Date of Patent: August 20, 2002Assignee: Chisso CorporationInventors: Masuo Iwata, Yoshihiro Nakai
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Patent number: 5945467Abstract: A flame-retardant thermosetting resin composition comprising a thermosetting resin and from 4 to 50% by weight, based on the composition, of (1) melamine-coated ammonium polyphosphate particles and/or (2) water-insoluble ammonium polyphosphate particles obtained by crosslinking the surface of melamine-coated ammonium polyphosphate particles with a compound having a functional group capable of reacting with an active hydrogen atom belonging to an amino group of a melamine molecule in the melamine coating is disclosed. Also disclosed is a process for producing water-insoluble ammonium polyphosphate particles comprising adhering or impregnating a crosslinking agent having a functional group capable of reacting with an active hydrogen atom belonging to an amino group of a melamine molecule to or into the surface of melamine-coated ammonium polyphosphate particles and allowing a melamine in the melamine coat and the crosslinking agent to react.Type: GrantFiled: September 3, 1997Date of Patent: August 31, 1999Assignee: Chisso Corp.Inventors: Masuo Iwata, Mika Seki, Kouji Inoue, Ryoji Takahashi, Tikashi Fukumura, Masaya Tanaka
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Patent number: 5795930Abstract: A flame-retardant thermoplastic polymer composition which inhibits the bleeding of ammonium polyphosphate onto the surface of a molded article include components (A), (B), (C), and (D), wherein includes an oxygen-containing solid compound containing an element of Group II, Group III or Group IV of the periodic table, (B) includes a triazine ring-containing organic compound, (C) includes an ammonium polyphosphate powder, a melamine-coated ammonium polyphosphate powder and a powder of a water-insolubilized, melamine-coated ammonium polyphosphate powder, and (D) includes a thermoplastic polymer.Type: GrantFiled: August 3, 1995Date of Patent: August 18, 1998Assignee: Chisso CorporationInventors: Tikashi Fukumura, Masuo Iwata, Noriaki Narita, Kouji Inoue, Masaya Tanaka, Mika Seki, Ryoji Takahashi
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Patent number: 5700575Abstract: Water-insoluble ammonium polyphosphate particles are provided which include melamine-coated ammonium polyphosphate particles with the surface thereof being crosslinked by a reaction between the melamine of the melamine-coated ammonium polyphosphate particles and a crosslinking agent having a functional group capable of reacting with the active hydrogen atoms belonging to the amino group in the melamine molecule.Type: GrantFiled: December 23, 1994Date of Patent: December 23, 1997Assignee: Chisso CorporationInventors: Masuo Iwata, Mika Seki, Kouji Inoue, Ryoji Takahashi, Tikashi Fukumura, Masaya Tanaka
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Patent number: 5599626Abstract: A melamine-coated ammonium polyphosphate exhibiting properties of having no hygroscopicity, being difficultly soluble in water and difficultly susceptive of hydrolysis is provided and further a process for producing a melamine-coated ammonium polyphosphate having the above properties and also being powdery even when it is not ground is provided, the above powdery, melamine-coated ammonium polyphosphate being characterized in that melamine is added and/or adhered onto the particle surface of a powdery, ammonium polyphosphate expressed by the formula ##STR1## wherein n represents an integer of 20 or more, and a process for producing a powdery, melamine-coated ammonium polyphosphate being characterized in that melamine is sublimated and added and/or adhered onto the particle surface of a powdery ammonium polyphosphate.Type: GrantFiled: March 8, 1994Date of Patent: February 4, 1997Assignee: Chisso CorporationInventors: Chikashi Fukumura, Masuo Iwata, Noriaki Narita, Kouji Inoue, Ryoji Takahashi
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Patent number: 5534291Abstract: A process for producing a powdery ammonium polyphosphate which is uniformly coated with melamine is provided wherein melamine is sublimated and added and/or adhered onto the particle surface of a powdery ammonium polyphosphate.Type: GrantFiled: March 20, 1995Date of Patent: July 9, 1996Assignee: Chisso CorporationInventors: Chikashi Fukumura, Masuo Iwata, Noriaki Narita, Kouji Inoue, Ryoji Takahashi
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Patent number: 5430080Abstract: A flame-retardant thermoplastic resin composition comprising,(A) 10 to 40% by weight of a melamine-coated ammonium polyphosphate having melamine added and/or adhered onto the particle surfaces of a powdery ammonium polyphosphate expressed by the following formula (I): ##STR1## wherein n is an integer of 2 or more, (B) 1 to 20% by weight of a triazine-containing polymer, and(C) 89 to 40% by weight of a thermoplastic resin, the total amount of these components being 100% by weight.Type: GrantFiled: May 31, 1994Date of Patent: July 4, 1995Assignee: Chisso CorporationInventors: Masuo Iwata, Noriaki Narita, Kouji Inoue, Ryoji Takahashi
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Patent number: 5344855Abstract: A flame-retardant consisting of two specified components and a flame-retardant resin composition having the flame-retardant blended with a thermoplastic resin are provided,which flame-retardant is composed of (A) a reaction product of cyanuric chloride with a diamine and (B) ammonium polyphosphate or polyphosphoric acid amide, the ratio of (A) to (B) being 0.1 to 10, and which flame-retardant resin composition has the flame-retardant blended with a thermoplastic resin in a quantity of 1 to 50% by weight based upon the weight of the composition.Type: GrantFiled: July 2, 1993Date of Patent: September 6, 1994Assignee: Chisso CorporationInventors: Noriaki Narita, Masuo Iwata, Kouji Inoue, Hideo Sato, Ryoji Takahashi
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Patent number: 5213783Abstract: Finely divided particles of II type ammonium polyphosphate (APP) which, when added to polyolefin resins, etc., afford products having a small reduction in the mechanical characteristics, a reduced particle diameter and an increased specific surface area and nevertheless, having bleed resistance and flame retardancy similar to those of conventional products, and a process for producing the particles are provided,the particles being characterized in that 80% by weight or more thereof have a particle diameter of 10 .mu.m or less and 5% aqueous solution thereof dissolved in 80.degree. C. water has 500 cps or more, and the process being a process for producing the particles by reacting ammonium phosphate with P.sub.2 O.sub.5, each in a nearly equimolar quantity, in a NH.sub.3 gas atmosphere and at an elevated temperature, comprisinga first reaction step carried out in N.sub.2 gas atmosphere without feeding NH.sub.3 gas, a second reaction step of instantaneously feeding NH.sub.3 gas or a NH.sub.Type: GrantFiled: December 12, 1991Date of Patent: May 25, 1993Assignee: Chisso CorporationInventors: Chikashi Fukumura, Kouji Inoue, Masuo Iwata, Noriaki Narita, Masaya Tanaka