Patents by Inventor Masayuki Ikeno
Masayuki Ikeno 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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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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Patent number: 7078460Abstract: A room temperature curable organopolysiloxane composition is provided which includes an organopolysiloxane, a curing agent, and a specific organic compound incorporating at least one sulfur atom within each molecule. By producing a molding matrix with this type of composition, unsatisfactory curing of an unsaturated polyester resin is unlikely to occur at the contact surface with the silicone rubber of the matrix, and furthermore the mold releasability of the matrix relative to unsaturated polyester resins is excellent. As a result, the matrix can be used repeatedly for a significant number of molding operations.Type: GrantFiled: July 7, 2003Date of Patent: July 18, 2006Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Masayuki Ikeno, Morio Ohashi
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Patent number: 7067570Abstract: A one-part polysiloxane composition comprising a branched organopolysiloxane with vinyl groups bonded to silicon atoms, an organohydrogenpolysiloxane with at least two hydrogen atoms bonded to molecular chain terminal silicon atoms within each molecule, and a platinum based catalyst, together with an additional phosphite triester and an organic peroxide, is resistant to increases in viscosity, and does not gel, even on extended storage at room temperature. Even after storage, the characteristics of the cured gel product are unchanged. Accordingly, a composition of the present invention offers excellent long term storage stability at room temperature.Type: GrantFiled: December 9, 2003Date of Patent: June 27, 2006Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Masayuki Ikeno, Miyuki Tanaka, Kazuyasu Sato
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Patent number: 7059627Abstract: A silicone rubber coating composition which cures into a silicone rubber having a tear strength of 25–50 kN/m and a peeling bond strength of 30–60 N/cm is suited for coating of hollow weave type air bags. A hollow weave type air bag coated with the coating composition can be instantaneously inflated while the bag prevents the silicone rubber film from being peeled from the base fabric, eliminates inflating gas leakage, and retains an acceptable inflation time.Type: GrantFiled: May 7, 2003Date of Patent: June 13, 2006Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Masayuki Ikeno, Atsushi Yaginuma, Syuichi Azechi, Takeshi Miyao
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Publication number: 20060058452Abstract: An anti-fouling or fouling release condensation curing organopolysiloxane composition is provided comprising (A) a diorganopolysiloxane having at least two silicon atom-bonded hydroxyl and/or hydrolyzable groups in a molecule, (B) a silane having at least two hydrolyzable groups in a molecule and/or a partial hydrolytic condensate thereof, and (C) an ionic liquid, typically a fused salt. The composition cures to an underwater structure to form a coating which is non-toxic, non-detrimental to the environment, and effective for preventing aquatic organisms from depositing and growing thereon over a long term.Type: ApplicationFiled: September 13, 2005Publication date: March 16, 2006Inventors: Takafumi Sakamoto, Masayuki Ikeno
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Publication number: 20060047097Abstract: In a one part organopolysiloxane gel composition comprising an alkenyl-containing branched organopolysiloxane, an SiH-terminated organohydrogenpolysiloxane, and an addition reaction catalyst, the catalyst is obtained by heat aging a mixture of a platinum complex having an alkenyl-containing silane or organosiloxane as a ligand, a phosphite, and an organohydrogenpolysiloxane at 30-120° C. and an organic peroxide is concomitantly used. The composition inhibits addition reaction at room temperature, maintains storage stability over a long period, yet can cure rapidly at moderate temperature.Type: ApplicationFiled: August 24, 2005Publication date: March 2, 2006Inventors: Miyuki Tanaka, Kazuyasu Sato, Masayuki Ikeno
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Publication number: 20060040116Abstract: Provided is a two-part curable silicone composition including: (A) 100 parts by mass of an organopolysiloxane containing at least two alkenyl groups bonded to silicon atoms, (B) an organohydrogenpolysiloxane containing at least two SiH groups, in sufficient quantity to provide from 0.5 to 5.0 mols of SiH groups within the component (B) for every 1 mol of alkenyl groups within the entire composition, (C) an effective quantity of a hydrosilylation reaction catalyst, and (D) from 0.0001 to 1 part by mass of a nitrogen-containing compound (a triazole-based compound and/or an imidazole-based compound), which is prepared in two separate parts, in which the components (A) through (C) do not exist within one part, and the component (D) exists in a different part from that of the component (C). Also provided are a method of curing the composition and a cured product obtained by the method.Type: ApplicationFiled: August 18, 2005Publication date: February 23, 2006Applicant: Shin-Etsu Chemical Co., Ltd.Inventor: Masayuki Ikeno
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Publication number: 20050277725Abstract: An addition reaction-curable liquid silicone rubber composition includes an organopolysiloxane containing at least one Si-bonded vinyl group only at each end of its backbone and having a viscosity of from 1 to 1,000 Pa·s at 25° C., an organopolysiloxane containing at least two Si-bonded vinyl groups only in side chains on its backbone and having a viscosity of from 0.1 to 100 Pa·s at 25° C., the amount of siloxane units bonded to the vinyl groups being from 2 to 20 mole % of its total siloxane units, finely divided silica having a specific surface area of at least 50 m2/g, hexamethyldisilazane, water, an organohydrogenpolysiloxane containing at least two Si-bonded hydrogen atoms per molecule, and a hydrosilation catalyst. Another addition reaction-curable liquid silicone rubber composition additionally includes a specific non-functional dimethylpolysiloxane.Type: ApplicationFiled: June 14, 2005Publication date: December 15, 2005Inventors: Masayuki Ikeno, Shigeki Shudo, Naoki Yamakawa, Yujiro Taira
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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: 20050234181Abstract: A silicone rubber coating composition which cures into a silicone rubber having a tear strength of 25-50 kN/m and a peeling bond strength of 30-60 N/cm is suited for coating of hollow weave type air bags. A hollow weave type air bag coated with the coating composition can be instantaneously inflated while the bag prevents the silicone rubber film from being peeled from the base fabric, eliminates inflating gas leakage, and retains an acceptable inflation time.Type: ApplicationFiled: June 27, 2005Publication date: October 20, 2005Inventors: Masayuki Ikeno, Atsushi Yaginuma, Syuichi Azechi, Takeshi Miyao
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Patent number: 6913833Abstract: A composite cured product body is provided, which includes a first cured product part formed from a condensation reaction curable silicone rubber, and a second cured product part adhering to a surface of said first cured part formed from an addition reaction curable organopolysiloxane composition. The addition reaction curable organopolysiloxane composition includes: (A) an organopolysiloxane with at least 2 alkenyl groups bonded to silicon atoms, (B) an organohydrogenpolysiloxane with at least 2 hydrogen atoms bonded to silicon atoms, (C) a hydrosilylation reaction catalyst, and (D) at least one organopolysiloxane with at least one monovalent group bonded to a silicon atom and represented by the formula (1): —O—SiR2(OH)??(1) or the formula (2): —R1—Si(OR2)aR33-a??(2).Type: GrantFiled: August 7, 2003Date of Patent: July 5, 2005Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Masayuki Ikeno, Syuichi Azechi
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Patent number: 6780919Abstract: An organopolysiloxane composition for molding purposes is provided which includes: (A) an organopolysiloxane with at least two alkenyl groups bonded to silicon atoms, (B) a straight chain organopolysiloxane with a hydrogen atom bonded to a silicon atom at both terminals, (C) an organohydrogenpolysiloxane with at least three hydrogen atoms bonded to silicon atoms within a single molecule and including a RHSiO unit and a R2XSiO1/2 unit (wherein R is an unsubstituted or a substituted monovalent hydrocarbon group with no alkenyl groups, and X represents either a hydrogen atom or a group represented by R as defined above) within the molecule, (D) a hydrosilylation reaction catalyst, and (E) finely powdered silica, wherein the total number of hydrogen atoms bonded to silicon atoms within the constituent (B) and the constituent (C) ranges from 1 to 5 per alkenyl group within the constituent (A), and the number of hydrogen atoms bonded to silicon atoms within the constituent (B) accounts for 20 to 70 mol % of the comType: GrantFiled: December 18, 2001Date of Patent: August 24, 2004Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Masayuki Ikeno, Masaya Arakawa, Kouichi Tanaka
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Publication number: 20040116561Abstract: A one-part polysiloxane composition comprising a branched organopolysiloxane with vinyl groups bonded to silicon atoms, an organohydrogenpolysiloxane with at least two hydrogen atoms bonded to molecular chain terminal silicon atoms within each molecule, and a platinum based catalyst, together with an additional phosphite triester and an organic peroxide, is resistant to increases in viscosity, and does not gel, even on extended storage at room temperature. Even after storage, the characteristics of the cured gel product are unchanged. Accordingly, a composition of the present invention offers excellent long term storage stability at room temperature.Type: ApplicationFiled: December 9, 2003Publication date: June 17, 2004Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Masayuki Ikeno, Miyuki Tanaka, Kazuyasu Sato
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Publication number: 20040028917Abstract: A composite cured product body is provided, which includes a first cured product part formed from a condensation reaction curable silicone rubber, and a second cured product part adhering to a surface of said first cured part formed from an addition reaction curable organopolysiloxane composition.Type: ApplicationFiled: August 7, 2003Publication date: February 12, 2004Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Masayuki Ikeno, Syuichi Azechi
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Publication number: 20040010109Abstract: A room temperature curable organopolysiloxane composition is provided which includes an organopolysiloxane, a curing agent, and a specific organic compound incorporating at least one sulfur atom within each molecule. By producing a molding matrix with this type of composition, unsatisfactory curing of an unsaturated polyester resin is unlikely to occur at the contact surface with the silicone rubber of the matrix, and furthermore the mold releasability of the matrix relative to unsaturated polyester resins is excellent. As a result, the matrix can be used repeatedly for a significant number of molding operations.Type: ApplicationFiled: July 7, 2003Publication date: January 15, 2004Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Masayuki Ikeno, Morio Ohashi
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Publication number: 20030211340Abstract: A silicone rubber coating composition which cures into a silicone rubber having a tear strength of 25-50 kN/m and a peeling bond strength of 30-60 N/cm is suited for coating of hollow weave type air bags. A hollow weave type air bag coated with the coating composition can be instantaneously inflated while the bag prevents the silicone rubber film from being peeled from the base fabric, eliminates inflating gas leakage, and retains an acceptable inflation time.Type: ApplicationFiled: May 7, 2003Publication date: November 13, 2003Inventors: Masayuki Ikeno, Atsushi Yaginuma, Syuichi Azechi, Takeshi Miyao
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Publication number: 20020132912Abstract: A room temperature curable organopolysiloxane composition is provided which includes an organopolysiloxane, a curing agent, and a specific organic compound incorporating at least one sulfur atom within each molecule. By producing a molding matrix with this type of composition, unsatisfactory curing of an unsaturated polyester resin is unlikely to occur at the contact surface with the silicone rubber of the matrix, and furthermore the mold releasability of the matrix relative to unsaturated polyester resins is excellent. As a result, the matrix can be used repeatedly for a significant number of molding operations.Type: ApplicationFiled: January 15, 2002Publication date: September 19, 2002Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Masayuki Ikeno, Morio Ohashi
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Publication number: 20020111452Abstract: An organopolysiloxane composition for molding purposes is provided which includes: (A) an organopolysiloxane with at least two alkenyl groups bonded to silicon atoms, (B) a straight chain organopolysiloxane with a hydrogen atom bonded to a silicon atom at both terminals, (C) an organohydrogenpolysiloxane with at least three hydrogen atoms bonded to silicon atoms within a single molecule and including a RHSiO unit and a R2XSiO1/2 unit (wherein R is an unsubstituted or a substituted monovalent hydrocarbon group with no alkenyl groups, and X represents either a hydrogen atom or a group represented by R as defined above) within the molecule, (D) a hydrosilylation reaction catalyst, and (E) finely powdered silica, wherein the total number of hydrogen atoms bonded to silicon atoms within the constituent (B) and the constituent (C) ranges from 1 to 5 per alkenyl group within the constituent (A), and the number of hydrogen atoms bonded to silicon atoms within the constituent (B) accounts for 20 to 70 mol % of the comType: ApplicationFiled: December 18, 2001Publication date: August 15, 2002Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Masayuki Ikeno, Masaya Arakawa, Kouichi Tanaka
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Patent number: 6387520Abstract: A solvent-free liquid silicone rubber composition comprising (A) an organopolysiloxane containing at least two alkenyl groups, (B) an organohydrogenpolysiloxane having at least two hydrogen atoms each attached to a silicon atom, (C) wet silica having a BET specific surface area of 150-250 m2/g, a mean particle size of 0.01-20 &mgr;m, and a sodium ion content of up to 0.35 wt % Na2O, (D) an adhesive agent, and (E) a platinum group catalyst is useful for coating onto air bag base fabric to form a thin film having good infiltration, strong adhesion and minimized surface tack.Type: GrantFiled: August 24, 2000Date of Patent: May 14, 2002Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Hironao Fujiki, Yoshifumi Inoue, Yoshifumi Harada, Takeshi Miyao, Masayuki Ikeno
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Publication number: 20020016019Abstract: A process for producing a semiconductor device package, comprising the steps of putting in a casing a substrate on which a semiconductor device has been mounted, and potting the semiconductor-mounted substrate with an addition-curable organopolysiloxane composition in the casing. The composition shows a Young's modulus of from 1 to 12 kgf/cm2 after its curing, undergoes less change in the Young's modulus with time and therefore is less causative of stress by strain. Thus, semiconductor device packages can be obtained which may cause no cracking in semiconductor-mounted substrates.Type: ApplicationFiled: February 25, 1999Publication date: February 7, 2002Inventor: MASAYUKI IKENO