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US 2017/0145159 A1Published application
Resin pellet, resin pellet manufacturing method, and molded article manufacturing method
AssigneeJtekt Corporation
InventorsTakeshi KUNISHIMA, Tomoya NISHIDA
Life of this patent
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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.
Claims20
A resin pellet comprising:
- a polyamide resin;
- and
- a carbodiimide group, wherein
- a percentage of the carbodiimide group to the resin pellet is 0.03% to 0.33% by mass.
1 more element
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.