| 摘要 |
This patent describes white for painting which consists of carboxymethylcelullose 0,5 up to 15 weight percent and chalk 85,0 up to 99,5 weight percent. The production is based on this principle, that the dried carboxymethycelullose, 0,5 up to 15 weight percent being pulverised to dust is mixed at least for 3 minutes at 10 up to 50 revolutions per minute with a grinded powder washed chalk.
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