US2023110490A1PendingUtilityA1

Thermoplastic elastomer composition, foam particle, and foam molded body

81
Assignee: SEKISUI PLASTICSPriority: Sep 11, 2017Filed: Dec 13, 2022Published: Apr 13, 2023
Est. expirySep 11, 2037(~11.2 yrs left)· nominal 20-yr term from priority
C08J 2300/26C08J 2377/00C08K 13/02C08J 2300/22C08J 9/0028C08J 2371/02C08J 2201/03C08J 2353/00C08J 2205/044C08J 9/18C08K 3/013C08J 9/0052C08J 2367/02C08L 35/02C08L 33/24C08J 2203/14C08K 5/0041C08L 21/00C08J 9/141C08L 23/16C08J 9/0066C08J 9/232
81
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Claims

Abstract

The thermoplastic elastomer composition contains a thermoplastic elastomer and a pigment.

Claims

exact text as granted — not AI-modified
1 - 15 . (canceled) 
     
     
         16 . Expanded particles of resin particles comprising a thermoplastic elastomer composition expanded with a blowing agent,
 the thermoplastic elastomer composition comprising:   a thermoplastic elastomer having crystallinity and being selected from the group consisting of an amide-based elastomer, an olefin-based elastomer, an ester-based elastomer, and a urethane-based elastomer; and   a pigment, wherein   the pigment is present in an amount of 0.05 to 3.0 parts by mass, per 100 parts by mass of the thermoplastic elastomer, and   the crystallization temperature of the thermoplastic elastomer composition is 10° C. or more higher than the crystallization temperature of the thermoplastic elastomer.   
     
     
         17 . The expanded particles according to  claim 16 ,
 wherein the expanded particles are colored expanded particles,   wherein the colored expanded particles have darker and lighter color areas on a surface thereof, and   wherein the colored expanded particles satisfy the following Characteristic (1) when the surface of the colored expanded particles is measured with a color difference meter in accordance with JIS Z8722:2009:
     X−Y≥ 0.5  Characteristic (1),
 
 wherein X is a value of color difference at a darker color portion of the colored expanded particles, and 
 wherein Y is a value of color difference at a lighter color portion of the colored expanded particles. 
   
     
     
         18 . The expanded particles according to  claim 16 , wherein the expanded particles have a bulk density of 0.05 to 0.5 g/cm 3 . 
     
     
         19 . The expanded particles according to  claim 16 , wherein the expanded particles have a bulk density of 0.05 to 0.5 g/cm 3 , an open cell percentage of 10% or less, and an average particle diameter of 1 to 10 mm. 
     
     
         20 . The thermoplastic elastomer composition according to  claim 16 , wherein the thermoplastic elastomer is an amide-based elastomer, and the thermoplastic elastomer composition has a melting point 20 to 30° C. higher than the crystallization temperature.

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