| 摘要 |
PROBLEM TO BE SOLVED: To provide a detergent for extruders excellent in cleaning effect of a preceding resin remaining inside the extruders or the like, and having a small decrease in physical property even if a used detergent is contaminated when a subsequent resin is a polyolefin resin. SOLUTION: The detergent for extruders comprises the following (A) of 1 to 99 wt.% and the following (B) of 99 to 1 wt.%. The olefin copolymer (A) comprises a monomer unit derived from at least two kinds of olefins selected from the group consisting of ethylene, propylene andα-olefine having carbon numbers of 4 to 20, and the following requirements (1), (2) and (3) wherein (1) the content of the monomer unit derived from propylene andα-olefine having carbon numbers of 4 to 20 is 30 to 100 mole%, (2) a limiting viscosity is 0.7 to 10 dl/g and (3) a crystal fusion calorie observed in the range of -50°C to 200°C in a differential scanning calorimetry in accordance with JIS K 7122 is not more than 30 J/g. The thermoplastic resin (B) differs from the above described olefin copolymer (A). COPYRIGHT: (C)2008,JPO&INPIT
|
