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USE OF AN EXTRUSION PROCESSING AID FOR THE PRODUCTION OF COLOURED POLYETHYLENE PIPES
USE OF AN EXTRUSION PROCESSING AID FOR THE PRODUCTION OF COLOURED POLYETHYLENE PIPES
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机译:使用挤出加工助剂生产彩色聚乙烯管材
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摘要
The present invention relates to the use of at least one UV stabilizer (A) of formula (I) as an extrusion molding processing aid for a polyethylene composition comprising one or more pigments (C), wherein R 1 is unsubstituted or An aliphatic or aromatic hydrocarbyl radical containing substituted heteroatoms; R 2 , R 3 , R 5 and R 6 are independently unsubstituted or substituted aliphatic C 1 -C 4 hydrocarbyl radicals, and R 4 is H or CH 3 .
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