Patents by Inventor Hidenori Mizushima
Hidenori Mizushima 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: 7662479Abstract: A liquid silicone rubber coating composition that is ideal for forming a coating on an air bag is provided. The composition includes: (A) an organopolysiloxane containing two or more alkenyl groups bonded to silicon atoms within each molecule, (B) an organohydrogenpolysiloxane containing at least two silicon atom-bonded hydrogen atoms within each molecule, (C) an addition reaction catalyst, (D) a finely powdered silica with a specific surface area of at least 50 m2/g, (E) an organosilicon compound containing an epoxy group and a silicon atom-bonded alkoxy group within each molecule, and (F) a compound represented by a general formula: Al(OH)(OCOR)2 (wherein, R represents identical or different, unsubstituted or substituted monovalent hydrocarbon groups of 1 to 20 carbon atoms). Leakage of the inflator gas when the air bag is in an inflated state is suppressed, enabling production of an air bag that exhibits excellent sustainability of the inflation period.Type: GrantFiled: July 29, 2008Date of Patent: February 16, 2010Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Masayuki Ikeno, Tsutomu Nakamura, Hidenori Mizushima, Shigeru Ubukata, Daichi Todoroki, Takashi Tanaka
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Patent number: 7659004Abstract: Provided is a liquid silicone rubber coating composition, including predetermined quantities of (A) an organopolysiloxane containing 2 or more Si atom-bonded alkenyl groups, (B) an organohydrogenpolysiloxane containing 2 or more SiH groups, (C) an addition reaction catalyst, (D) a finely powdered silica with a specific surface area of at least 50 m2/g, (E) an organosilicon compound containing an epoxy group and a Si atom-bonded alkoxy group, and (F) an oxyzirconium compound. The composition is useful for producing a silicone rubber coating layer on the substrate surface of a curtain air bag. The air bag suppresses leakage of the inflator gas, thus enabling the inflation time to be sustained for a satisfactory period.Type: GrantFiled: March 7, 2008Date of Patent: February 9, 2010Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Masayuki Ikeno, Tsutomu Nakamura, Hidenori Mizushima, Shigeru Ubukata, Daichi Todoroki, Takashi Tanaka
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Patent number: 7641980Abstract: A liquid silicone rubber coating composition comprising (A) an organopolysiloxane containing silicon-bonded alkenyl radicals, (B) an organohydrogenpolysiloxane containing SiH radicals, (C) an addition reaction catalyst, (D) finely divided silica, (E) an organosilicon compound containing epoxy and alkoxy radicals, (F) an organic titanium, zirconium or aluminum compound, and (G) a silanol-containing silane or siloxane compound is coated on a surface of an airbag base fabric and cured to form a rubber coating layer thereon. The composition is suited for curtain airbags.Type: GrantFiled: June 5, 2008Date of Patent: January 5, 2010Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Masayuki Ikeno, Tsutomu Nakamura, Hidenori Mizushima, Shigeru Ubukata, Daichi Todoroki, Takashi Tanaka
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Patent number: 7608657Abstract: Provided is a liquid silicone rubber coating agent composition, including: (A) an organopolysiloxane containing at least two silicon atom-bonded alkenyl groups within each molecule, (B) an organohydrogenpolysiloxane containing at least two silicon atom-bonded hydrogen atoms within each molecule, (C) an addition reaction catalyst, (D) a gelled silica with a BET specific surface area within a range from 260 to 500 m2/g and an average particle size within a range from 0.5 to 20 ?m, and (E) an adhesion improver. Also provided is an air bag with a rubber coating layer including a cured product of the above composition. The liquid silicone rubber coating agent composition yields a cured product with excellent properties of adhesion to fiber, rubber strength, and blocking resistance.Type: GrantFiled: January 17, 2006Date of Patent: October 27, 2009Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Hidenori Mizushima, Masayuki Ikeno
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Patent number: 7534499Abstract: A liquid silicone rubber coating composition comprising (A) an organopolysiloxane containing at least two silicon-bonded alkenyl radicals, (B) an organohydrogenpolysiloxane containing at least two SiH radicals, (C) an addition reaction catalyst, optionally (D) finely divided silica, (E) triallyl isocyanurate, (F) an organosilicon compound containing an epoxy radical and a silicon-bonded alkoxy radical, and (G) a titanium or zirconium compound is coated on a surface of an airbag base fabric and cured to form a rubber coating layer thereon. The composition is suited for curtain airbags.Type: GrantFiled: December 29, 2006Date of Patent: May 19, 2009Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Masayuki Ikeno, Hidenori Mizushima, Shigeru Ubukata, Mitsuhiro Iwata
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Publication number: 20090033076Abstract: A liquid silicone rubber coating composition that is ideal for forming a coating on an air bag is provided. The composition includes: (A) an organopolysiloxane containing two or more alkenyl groups bonded to silicon atoms within each molecule, (B) an organohydrogenpolysiloxane containing at least two silicon atom-bonded hydrogen atoms within each molecule, (C) an addition reaction catalyst, (D) a finely powdered silica with a specific surface area of at least 50 m2/g, (E) an organosilicon compound containing an epoxy group and a silicon atom-bonded alkoxy group within each molecule, and (F) a compound represented by a general formula: Al(OH)(OCOR)2 (wherein, R represents identical or different, unsubstituted or substituted monovalent hydrocarbon groups of 1 to 20 carbon atoms). Leakage of the inflator gas when the air bag is in an inflated state is suppressed, enabling production of an air bag that exhibits excellent sustainability of the inflation period.Type: ApplicationFiled: July 29, 2008Publication date: February 5, 2009Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Masayuki IKENO, Tsutomu NAKAMURA, Hidenori MIZUSHIMA, Shigeru UBUKATA, Daichi TODOROKI, Takashi TANAKA
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Publication number: 20090001690Abstract: A liquid silicone rubber coating composition comprising (A) an organopolysiloxane containing silicon-bonded alkenyl radicals, (B) an organohydrogenpolysiloxane containing SiH radicals, (C) an addition reaction catalyst, (D) finely divided silica, (E) an organosilicon compound containing epoxy and alkoxy radicals, (F) an organic titanium, zirconium or aluminum compound, and (G) a silanol-containing silane or siloxane compound is coated on a surface of an airbag base fabric and cured to form a rubber coating layer thereon. The composition is suited for curtain airbags.Type: ApplicationFiled: June 5, 2008Publication date: January 1, 2009Inventors: Masayuki Ikeno, Tsutomu Nakamura, Hidenori Mizushima, Shigeru Ubukata, Daichi Todoroki, Takashi Tanaka
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Publication number: 20080220675Abstract: Provided is a liquid silicone rubber coating composition, including predetermined quantities of (A) an organopolysiloxane containing 2 or more Si atom-bonded alkenyl groups, (B) an organohydrogenpolysiloxane containing 2 or more SiH groups, (C) an addition reaction catalyst, (D) a finely powdered silica with a specific surface area of at least 50 m2/g, (E) an organosilicon compound containing an epoxy group and a Si atom-bonded alkoxy group, and (F) an oxyzirconium compound. The composition is useful for producing a silicone rubber coating layer on the substrate surface of a curtain air bag. The air bag suppresses leakage of the inflator gas, thus enabling the inflation time to be sustained for a satisfactory period.Type: ApplicationFiled: March 7, 2008Publication date: September 11, 2008Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Masayuki IKENO, Tsutomu Nakamura, Hidenori Mizushima, Shigeru Ubukata, Daichi Todoroki, Takashi Tanaka
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Publication number: 20070281564Abstract: Provided is a liquid silicone rubber coating composition, including predetermined quantities of (A) an organopolysiloxane containing 2 or more Si atom-bonded alkenyl groups, (B) an organohydrogenpolysiloxane of a specific structure containing 2 or more SiH groups, (C) an addition reaction catalyst, (D) a finely powdered silica with a specific surface area of at least 50 m2/g, (E) an organosilicon compound containing an epoxy group and a Si atom-bonded alkoxy group, and (F) a titanium compound and/or a zirconium compound. The coating composition exhibits excellent adhesion to an air bag base fabric and, therefore, is useful for producing a curtain air bag having a silicone rubber coating layer including a cured product of such a composition on at least one surface of the base fabric.Type: ApplicationFiled: June 5, 2007Publication date: December 6, 2007Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Hidenori Mizushima, Masayuki Ikeno, Shigeru Ubukata, Takashi Tanaka
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Publication number: 20070166555Abstract: A liquid silicone rubber coating composition comprising (A) an organopolysiloxane containing at least two silicon-bonded alkenyl radicals, (B) an organohydrogenpolysiloxane containing at least two SiH radicals, (C) an addition reaction catalyst, optionally (D) finely divided silica, (E) triallyl isocyanurate, (F) an organosilicon compound containing an epoxy radical and a silicon-bonded alkoxy radical, and (G) a titanium or zirconium compound is coated on a surface of an airbag base fabric and cured to form a rubber coating layer thereon. The composition is suited for curtain airbags.Type: ApplicationFiled: December 29, 2006Publication date: July 19, 2007Applicant: Shin -Etsu Chemical Co., Ltd.Inventors: Masayuki IKENO, Hidenori Mizushima, Shigeru Ubukata, Mitsuhiro Iwata
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Patent number: 7153583Abstract: Liquid silicone rubber coating compositions which include specific amounts of an organopolysiloxane bearing at least two alkenyl groups, an organohydrogenpolysiloxane bearing at least two silicon-bonded hydrogen atoms, a crosslinking reaction catalyst which is an organic peroxide, a finely divided silica and a tackifier have a good coatability even when not diluted with a solvent. In airbags obtained by coating such a composition onto a woven base fabric and curing the applied composition, the cured coat does not delaminate during airbag inflation, thus minimizing inflator gas leakage and resulting in excellent inflation time sustainability.Type: GrantFiled: May 6, 2004Date of Patent: December 26, 2006Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Syuuichi Azechi, Hidenori Mizushima
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Publication number: 20060177673Abstract: Provided is a liquid silicone rubber coating agent composition, including: (A) an organopolysiloxane containing at least one alkenyl group bonded to a silicon atom within each molecule, (B) a straight-chain organohydrogenpolysiloxane containing a single silicon atom-bonded hydrogen atom only at each molecular chain terminal, with a viscosity at 25 ° C. within a range from 0.001 to 1.0 Pa·s, (C) an organohydrogenpolysiloxane containing at least three silicon atom-bonded hydrogen atoms within each molecule, with a viscosity at 25 ° C. within a range from 0.001 to 10 Pa·s, (D) an addition reaction catalyst, (E) a finely powdered silica with a BET specific surface area of at least 50 m2/g, and (F) an adhesion imparting agent. Also provided is a curtain air bag with a rubber coating layer formed by curing this composition.Type: ApplicationFiled: February 3, 2006Publication date: August 10, 2006Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Masayuki Ikeno, Hidenori Mizushima
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Publication number: 20060159935Abstract: Provided is a liquid silicone rubber coating agent composition, including: (A) an organopolysiloxane containing at least two silicon atom-bonded alkenyl groups within each molecule, (B) an organohydrogenpolysiloxane containing at least two silicon atom-bonded hydrogen atoms within each molecule, (C) an addition reaction catalyst, (D) a gelled silica with a BET specific surface area within a range from 260 to 500 m2/g and an average particle size within a range from 0.5 to 20 ?m, and (E) an adhesion improver. Also provided is an air bag with a rubber coating layer including a cured product of the above composition. The liquid silicone rubber coating agent composition yields a cured product with excellent properties of adhesion to fiber, rubber strength, and blocking resistance.Type: ApplicationFiled: January 17, 2006Publication date: July 20, 2006Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Hidenori Mizushima, Masayuki Ikeno
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Publication number: 20050267257Abstract: Provided is a liquid silicone rubber coating composition with a viscosity at 25° C. of 10,000 to 100,000 mPa·s, comprising: (A) (A-1) a substantially straight chain organopolysiloxane containing alkenyl groups only at both molecular chain terminals, and (A-2) a substantially straight chain organopolysiloxane containing an average of at least two alkenyl groups, only at non-terminal molecular chain positions, within each molecule, (B) an organohydrogenpolysiloxane containing an average of at least two hydrogen atoms bonded to silicon atoms within each molecule, (C) an addition reaction catalyst, and (D) an adhesion improver, as well as an air bag with a rubber coating layer comprising a cured product of such a composition. Also provided is an air bag with a rubber coating layer comprising a cured product of such a composition. The liquid silicone rubber coating composition can be used without dissolution in an organic solvent, and displays excellent adhesion to fiber and excellent rubber strength.Type: ApplicationFiled: May 24, 2005Publication date: December 1, 2005Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Hidenori Mizushima, Masayuki Ikeno
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Publication number: 20040222618Abstract: Liquid silicone rubber coating compositions which include specific amounts of an organopolysiloxane bearing at least two alkenyl groups, an organohydrogenpolysiloxane bearing at least two silicon-bonded hydrogen atoms, a crosslinking reaction catalyst which is an organic peroxide, a finely divided silica and a tackifier have a good coatability even when not diluted with a solvent. In airbags obtained by coating such a composition onto a woven base fabric and curing the applied composition, the cured coat does not delaminate during airbag inflation, thus minimizing inflator gas leakage and resulting in excellent inflation time sustainability.Type: ApplicationFiled: May 6, 2004Publication date: November 11, 2004Inventors: Syuuichi Azechi, Hidenori Mizushima
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Patent number: 6500564Abstract: An epoxy resin composition comprising (A) a polyfunctional epoxy resin, (B) a phenolic resin, (C) an inorganic filler, and (D) curing catalyst-containing microcapsules having a mean particle size of 0.5-50 &mgr;m is suited for semiconductor package encapsulation since it minimizes the warpage of packages and has satisfactory catalyst latency, storage stability and cure.Type: GrantFiled: August 18, 2000Date of Patent: December 31, 2002Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Toshio Shiobara, Kazuhiro Arai, Hidenori Mizushima, Shigeki Ino, Yasuo Kimura, Takayuki Aoki
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Patent number: 6342309Abstract: An epoxy resin composition contains (A) an epoxy resin, (B) a curing agent, (C) an inorganic filler, and (D) catalyzed microcapsules containing an imidazole compound or organic phosphorus compound and having a mean particle size of 0.5-50 &mgr;m, the quantity of the catalyst leached out from the microcapsules in o-cresol at 30° C. for 15 minutes being at least 70% by weight of the entire catalyst quantity. The composition is suited for semiconductor package encapsulation since it has satisfactory catalyst latency, storage stability and cure.Type: GrantFiled: August 18, 2000Date of Patent: January 29, 2002Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Toshio Shiobara, Shigeki Ino, Yasuo Kimura, Takayuki Aoki, Kazuhiro Arai, Hidenori Mizushima