Tochigi, Japan
Tochigi, Japan

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Patent
Sumitomo Bakelite | Date: 2016-09-14

A packaging bag for a cell culture vessel used for sealing a cell culture vessel, wherein when the packaging bag for a cell culture vessel sealing the cell culture vessel is accommodated in a closed space in which ordinary pressure is maintained, a temperature of 45 C. is maintained and the volume is 170 L, and the total amount of 70 mL of 6-mass % hydrogen peroxide aqueous solution is vaporized by applying ultrasonic vibration for 7 minutes in the closed space, and the hydrogen peroxide is decomposed by ultraviolet irradiation at a wavelength of 254 nm so that hydrogen peroxide concentration in the closed space becomes equal to or smaller than 1 mg/L within 90 minutes from the stop of the ultrasonic vibration, the amount of hydrogen peroxide adsorbed to the cell culture vessel is less than 3 ng/cm^(2).


Patent
Sumitomo Bakelite | Date: 2017-01-04

A cell aggregate culture vessel (1) is a vessel for culturing a cell aggregate. The cell aggregate culture vessel (1) includes a well (21) having a culture space capable of storing the cell aggregate and culture fluid and a tubular body (3) which is disposed on the well on a plane at which the well has an opening and have an inner cavity communicating with the culture space, and one or more communication portion (3a) capable of discharging the culture fluid without allowing passage of the cell aggregate to the outside of the tubular body (3) is formed in a tubular wall of the tubular body (3). The communication portion (3a) may be, for example, a slit having a width of 0.1 mm or larger and 0.5 mm or smaller.


Patent
Sumitomo Bakelite | Date: 2017-01-18

A multilayer film of the present invention has a plurality of unit layers laminated together, and each unit layer includes a first layer containing a crystalline resin A with thermoplasticity, and a second layer containing a thermoplastic resin B different from the crystalline resin A. In the case where such a multilayer film is deformed in a thickness direction thereof to from a plurality of concave portions each having a size of inner diameter 10.0 mm x height 4.5 mm therein, a gas transmission rate of the multilayer film via the concave portions is 10.0 mg/day (40C90%RH) per 10 concave portions or less.


Patent
Sumitomo Bakelite and Promerus LLC | Date: 2017-01-11

There is provided a polymer including a structural unit represented by the following Formula (1a), a structural unit represented by the following Formula (1b) and a structural unit represented by the following Formula (1c)._(1), R_(2), R_(3) and R_(4) independently represents a hydrogen atom or an organic group having 1 to 10 carbon atoms. In Formula (1c), R_(5) represents an organic group having 1 to 10 carbon atoms.


A housing (10) of a compressor (1) according to the present embodiment includes at least one compression chamber (101) that compresses a gas aspirated into the inside thereof and is composed of a metal-resin composite (16) in which a resin member (14) composed of a thermosetting resin composition and a metal member (12) are bonded to each other. In a case where the metal-resin composite (16) is made into a test piece in which the resin member (14) having a thickness d_(1) and the metal member (12) having a thickness d_(2) are laminated on and bonded to each other and a ratio of d_(1)/d_(2) is 3, and the test piece is put in a first state where the test piece is disposed, the surface on the resin member (14)-exposed side up, on two supports with no stress applied thereto and a second state where a 1-point bending stress of 140 MPa is applied in a thickness direction to the center of the surface on the resin member (14) side such that the center caves in after the first state, when putting in the first and second states is alternately repeated 1,000,000 times at a frequency of 30 Hz under a temperature condition of 25C, the metal-resin composite exhibits bending fatigue resistance in which neither peeling nor fracture occurs.


Patent
Sumitomo Bakelite | Date: 2017-04-05

The phenolic resin composition of the present invention includes a novolac-type phenolic resin, a resorcinol resin, and a curing agent, and is of a solid form. The mixing ratio of the resorcinol resin is preferably more than or equal to 1 part by mass and less than or equal to 100 parts by mass with respect to 100 parts by mass of the novolac-type phenolic resin. The mixing ratio of the curing agent is preferably more than or equal to 5 parts by mass and less than or equal to 25 parts by mass with respect to 100 parts by mass of a total amount of the novolac-type phenolic resin and the resorcinol resin. The phenolic resin cured product is obtained by heat-curing the phenolic resin composition.


Patent
Sumitomo Bakelite | Date: 2017-01-13

A back-plate composition of the present invention is a composition for forming a back plate of a brake pad, the brake pad having a friction material and the back plate bonded to the friction material. The back-plate composition includes a resin, a plurality of first fibers and a plurality of second fibers having an average length shorter than an average length of the first fibers. In the case where the average length of the first fibers is L1 [m] and the average length of the second fibers is L2 [m], L2/L1 is in the range of 0.001 to 0.5. This makes it possible to provide a back-plate composition having excellent moldability, as well as a back plate formed of the back-plate composition, a brake pad including the back-plate and a caliper device provided with the brake pad.


Patent
Sumitomo Bakelite | Date: 2016-11-21

A micro flow channel chip having high shape accuracy is provided. A micro flow channel chip includes a base material 12 having a groove 121 formed on one surface; and a resin film 14 joined to the surface of the base material 12 so as to cover the groove 121 of the base material 12, in which the resin film 14 contains a (meth)acrylic resin (A), and the (meth)acrylic resin (A) contains a structural unit (A1) represented by Formula (1).


Patent
Sumitomo Bakelite | Date: 2015-01-28

A thermally conductive sheet of the present invention includes a thermosetting resin (A), and an inorganic filler material (B) which is dispersed in the thermosetting resin (A). In the thermally conductive sheet according to the present invention, the volume resistivity of the cured product of the thermally conductive sheet, which is measured one minute later after an applied voltage of 1000 V is applied thereto on the basis of JIS K 6911 and at a temperature of 175 C., is greater than or equal to 1.010^(8 )m.


Patent
Sumitomo Bakelite | Date: 2015-03-10

Provided is a polymer including a structural unit represented by the following Formula (1a); and a structural unit represented by the following Formula (1b). (In Formula (1a), n represents 0, 1, or 2. R_(1), R_(2), R_(3), and R_(4 )each independently represent hydrogen or an organic group having 1 to 10 carbon atoms, at least one of R_(1), R_(2), R_(3), and R_(4 )including an oxetane ring.)

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