Title:
METHOD FOR MANUFACTURING RUBBER MOLDING
Document Type and Number:
WIPO Patent Application WO/2021/132162
Kind Code:
A1
Abstract:
Provided is a method for manufacturing a rubber molding by molding an acrylic rubber composition containing a crosslinking agent, carbon black, and a rubber component including an acrylic rubber using an extrusion molding machine, wherein molding of the acrylic resin composition using the extrusion molding machine is performed so that formula (1) and formula (2) are satisfied, where CA[phr] is the blended amount of carbon black included in the acrylic rubber composition, CD[cc/100 g] is the DBP oil absorption of the carbon black, SD[mm] is the diameter of the screw of the extrusion molding machine, SS[rpm] is the screw speed of the extrusion molding machine, and SP is the total pitch number of the screw of the extrusion molding machine. (1): 6.5 × 103 ≤ CA × CD ≤ 1.1 × 104
(2): 3.2 × 106 ≤ CA × SD × SS × SP ≤ 8.0 × 106
Inventors:
FUKUMINE YOSHIO (JP)
Application Number:
PCT/JP2020/047694
Publication Date:
July 01, 2021
Filing Date:
December 21, 2020
Export Citation:
Assignee:
ZEON CORP (JP)
International Classes:
C08L33/08; B29B7/14; B29C48/92; C08J5/00; C08K3/04
Domestic Patent References:
| WO2019188709A1 | 2019-10-03 |
Foreign References:
| JPH09227749A | 1997-09-02 | |||
| JP2002220505A | 2002-08-09 |
Attorney, Agent or Firm:
TOKOSHIE PATENT FIRM (JP)
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