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US 12,291,629 B2Granted
Method of manufacturing a molded article
AssigneeIdemitsu Kosan Co., Ltd.
InventorsYutaka Obata, Yasunari Okada, Tomoaki Takebe
Life of this patent
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Abstract
A thermosetting composition comprising the following component (A) and component (B), and having a viscosity of 0.1 Pa·s or higher and 100 Pa·s or lower at a shear rate of 10 s−1 at 25° C. measured in accordance with JIS K7117-2. (A) polybutadiene having a structural unit represented by the following formula (1A) and a structural unit represented by the following formula (1B), wherein the terminal group comprises a methacryloyl group or an acryloyl group (B) a thermal polymerization initiator
Claims6
A method of manufacturing a molded article, comprising:
- supplying a thermosetting composition into a plunger;
- filling the supplied thermosetting composition into a depressurized molding part of a mold by the plunger;
- and
- thermosetting the filled thermosetting composition in the molding part, wherein the thermosetting composition comprises the following component (A) and component (B), and
- has a viscosity of 0.1 Pa·s or higher and 100 Pa·s or lower at a shear rate of 10 s−1 at 25° C. measured in accordance with JIS K7117-2,
- (A) polybutadiene having a structural unit represented by the following formula (1A) and a structural unit represented by the following formula (1B), wherein the terminal group comprises a methacryloyl group or an acryloyl group;
- (B) a thermal polymerization initiator;
4 more elements
Dependencies are inferred from the claim text.