The polyurethane elastomer composition for electrophotography printing and the component for electrophotography printing which uses that

摘要

This invention, the polyvalent carboxylic acid which designates sebacic acid as the main component (A 1) with, (i) carbon count the direct glycol of 2 - 4, (ro) carbon count the direct glycol of 2 - 4 and the carbon count the glycol of 2 which possesses the side chain - 4, (ha) carbon count direct glycol and 1,6 Hexan glycol 2 - 4, (i) - (ha) from the polyatomic alcohol of 1 kinds which are selected (A 2) with condensing heavily, polyester poly- all which becomes (A), poriisoshianeto chemical compound (B), short chain cable diol and the fact that the blend of short chain cable torioru from (C) it is obtained the temperature dependancy which features is decreased,With improvement of long-term durability it is the polyurethane elastomer composition for electrophotography printing which satisfies machine strength and something which offers the component for electrophotography printing.