Title:
RESIN COMPOSITION AND METHOD FOR PRODUCING TABLETS
Document Type and Number:
WIPO Patent Application WO/2023/063264
Kind Code:
A1
Abstract:
A rotor-fixing resin composition according to the present invention is used for forming a fixing member in a rotor comprising a rotor core that is fixed to a rotary shaft and is provided with a plurality of holes arranged along the periphery of the rotary shaft, magnets inserted in the holes, and the fixing member disposed in a separation part between the holes and magnets. This resin composition comprises an epoxy resin, an imidazole curing agent, and an inorganic filler and has a spiral flow retention ratio, measured under the following conditions, of at least 70%. Conditions: A flow length measured by carrying out a spiral flow measurement on the resin composition at a die temperature of 175°C, an injection pressure of 6.9 MPa, and a cure time of 120 seconds is defined as L1. The resin composition is then stored for 6 months at 25°C. After storage, a flow length measured by carrying out a spiral flow measurement on the resin composition at a die temperature of 175°C, an injection pressure of 6.9 MPa, and a cure time of 120 seconds is defined as L2. The spiral flow retention ratio (%) is calculated using the following formula from the flow lengths L1 and L2. Formula: Spiral flow retention ratio (%) = (L2/L1) × 100.
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Inventors:
TAKAHASHI YUI (JP)
Application Number:
PCT/JP2022/037672
Publication Date:
April 20, 2023
Filing Date:
October 07, 2022
Export Citation:
Assignee:
SUMITOMO BAKELITE CO (JP)
International Classes:
C08G59/50; B29B7/42; B29B9/06; C08K3/013; C08L63/00
Domestic Patent References:
| WO2012029278A1 | 2012-03-08 | |||
| WO2016139985A1 | 2016-09-09 |
Foreign References:
| JPS62195016A | 1987-08-27 | |||
| JP2020094092A | 2020-06-18 | |||
| JP2012067274A | 2012-04-05 |
Attorney, Agent or Firm:
HAYAMI Shinji (JP)
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