CPC B29B 9/12 (2013.01) [B29B 9/06 (2013.01); C08L 23/06 (2013.01); B29K 2023/06 (2013.01); Y10T 428/2982 (2015.01)] | 20 Claims |
1. A resin pellet having a recess, wherein
when a height of the resin pellet in a case in which the resin pellet is disposed on a horizontal plane in such a manner that the recess faces the horizontal plane is defined as T1, and a maximum diameter of the resin pellet as viewed from a direction orthogonal to the horizontal plane is defined as L, an aspect ratio defined by L/T1 is 1.4 to 1.5, and
wherein when cross-sectional images of the resin pellet perpendicular to the horizontal plane and perpendicular to a direction of the maximum diameter L are obtained by an X-ray CT apparatus at regular intervals in the direction of the maximum diameter L, a width W of the recess in the cross-sectional image, in which a depth D of the recess is maximized, is 1.7 mm to 2.3 mm,
where the depth D of the recess is a distance between a tangent line tangent to two protrusions on both sides of the recess and the deepest portion of the recess in the cross-sectional image, in which a depth D of the recess is maximized, and the width W of the recess is a distance between tangent points of the two protrusions on the tangent line in the cross-sectional image, in which a depth D of the recess is maximized.
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