Title:
COMPOSITION, COMPOSITION FOR DOWN HOLE TOOL, DEGRADABLE RUBBER MEMBER FOR DOWN HOLE, DOWN HOLE TOOL AND WINZE EXCAVATION METHOD
Document Type and Number:
Japanese Patent JP2017115106
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a novel composition which can contribute to cost saving or process shortening, a composition for down hole tool, a degradable rubber member for down hole tool, a down hole tool, and a winze excavation method.SOLUTION: There are provided a composition containing a degradable rubber and a decomposition accelerator, and 0.1 to 20 pts.mass of at least one kind of compounds represented by the following general formula (I) as the decomposition accelerator based on 100 pts.mass of the degradable rubber, a composition for down hole tool, a degradable rubber composition for down hole tool and a down hole tool containing the same and a winze excavation method using the same. (I), where Rand Rare each independently an alkyl group or a phenyl group having 1 to 5 carbon atom.SELECTED DRAWING: None
Inventors:
KOBAYASHI TAKUMA
SAIJO HIKARU
KOBAYASHI FUMINORI
TAKAHASHI TAKEO
SAIJO HIKARU
KOBAYASHI FUMINORI
TAKAHASHI TAKEO
Application Number:
JP2015255287A
Publication Date:
June 29, 2017
Filing Date:
December 25, 2015
Export Citation:
Assignee:
KUREHA CORP
International Classes:
C08L21/00; C08K5/11; E21B33/12
Attorney, Agent or Firm:
Harakenzo world patent & trademark