Resin pellet, resin pellet manufacturing method, and molded article manufacturing method
AssigneeJtekt Corporation
InventorsTakeshi KUNISHIMA, Tomoya NISHIDA
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Abstract
Carbodiimide is added to a molten polyamide resin so as to provide resin pellets. The percentage of residual unreacted carbodiimide to each resin pellet is 0.03% to 0.33% by mass. Manufacturing molded articles using the resin pellets achieves both of an improvement in mechanical strength and an increase in wear resistance, and reduces property variations among the molded articles.
Claims17
A method for manufacturing a molded article, the method comprising:
- i) kneading a polyamide resin and a carbodiimide bond-containing compound so as to cause an unreacted carbodiimide group to remain,
- ii) molding a resin pellet having the unreacted carbodiimide group, wherein the percentage of the unreacted carbodiimide group to the resin pellet is 0.03% to 0.33% by mass, and
- iii) manufacturing the molded article using the resin pellets.
A method for manufacturing a resin pellet, the method comprising adding a carbodiimide bond-containing compound to a molten polyamide resin so as to cause an unreacted carbodiimide group to remain.
Dependencies are inferred from the claim text.