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.


A phenolic-resin molding material for a sliding member of the present invention includes a phenolic-resin, graphite, polytetrafluoroethylene, and spherical glass beads. In addition, a content of the phenolic-resin in the phenolic-resin molding material for a sliding member is 15% by weight or more and 50% by weight or less.


Patent
Sumitomo Bakelite | Date: 2017-04-12

The invention provides a medical device including a resin tube having excellent branch selectivity while excellent pushability in a curved body cavity or an extremely narrow body cavity such as a blood vessel terminal region is maintained. Provided is a medical device having a medical device body to be inserted into a body cavity. The medical device body has an elongated resin tube, the resin tube includes a first region including a distal end part and a second region including a proximal end part, and the first region is more flexible than the second region.


According to the present invention, there is provided a resol phenolic resin for a friction material wherein the resol phenolic resin has a structural unit A represented by Formula (1) and a structural unit B represented by Formula (2): wherein in Formula (1), m represents an integer of 1 or more; in a case where m is 1, R represents a methylol group; and in a case where m is 2 or more, Rs independently represent a hydrogen atom or a methylol group and at least one R is a methylol group; and wherein in Formula (2), n represents an integer of 1 or more; in a case where n is 1, R represents a methylol group; and in a case where n is 2 or more, Rs independently represent a hydrogen atom or a methylol group and at least one R is a methylol group.


Patent
Sumitomo Bakelite | Date: 2016-07-20

A method for manufacturing a molded article obtained by integrating a plate-shaped or sheet-shaped metal member (100) and a resin member, includes a step of putting the metal member (100) in a molding space (10) by using a molding mold (3) which includes a first mold portion (1) and a second mold portion (2) and has the molding space (10) formed of these mold members; a step of introducing a resin material (50) including a thermosetting resin into the molding space (10) in the molding mold (3) and filling the resin material (50) into the molding space (10) while pressing the metal member (100) onto any one molding surface of the first mold portion (1) and the second mold portion (2) by a fluid pressure of the resin material (50); and a step of curing the introduced resin material (50) so as to obtain the molded article.

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