Title:
THERMOPLASTIC ELASTOMER COMPOSITION PELLET AND MOLDED BODY
Document Type and Number:
Japanese Patent JP3815001
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain the subject pellet almost free from the generation of pinhole, underfill, etc., and capable of forming a complex molded body by comprising a specific thermoplastic elastomer composition and specifying a sphere-converted average particle diameter and a bulk specific gravity.
SOLUTION: The objective pellet having a sphere-converted average particle diameter of ≤1.2mm and a bulk specific gravity of ≤0.38 is obtained by palletizing a thermoplastic elastomer composition containing (A) 100 pts.wt. of a polyokefin resin and (B 5-250 pts.wt. of a gum polymer (e.g. a conjugated diene elastomer (hydrogenated product), and having a complex dynamic viscosity η*(1) of ≤0.5×104 poise at 250°C, as Newton viscosity coefficient (n) of ≤0.28 and a new tan δ peak at a temperature, which is different from both of a tan δpeak temperature of the A component and a tan δ peak temperature of the B component, in a temperature-depending tan δ curve (-70°C to 30°C; solid dynamic viscoelasticity measurement).
Inventors:
Hiroyuki Sugimoto
Nakatsuji Yoshihiro
Jin Ejiri
Nakatsuji Yoshihiro
Jin Ejiri
Application Number:
JP33168597A
Publication Date:
August 30, 2006
Filing Date:
December 02, 1997
Export Citation:
Assignee:
Sumitomo Chemical Co., Ltd.
International Classes:
C08J3/12; B32B25/04; C08L9/00; C08L15/00; C08L23/00; C08L23/02; C08L23/16; B29K21/00; B29K23/00; B29K105/04; (IPC1-7): C08L23/02; B32B25/04; C08J3/12; C08J3/12; C08L9/00; C08L15/00; C08L23/16; //B29K21:00; B29K23:00; B29K105:04
Domestic Patent References:
| JP7096532A | ||||
| JP7082433A | ||||
| JP5208467A | ||||
| JP9052990A | ||||
| JP2904125B2 | ||||
| JP3336903B2 | ||||
| JP10231392A |
Attorney, Agent or Firm:
Takashi Kuboyama
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