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公开(公告)号:DE1812095A1
公开(公告)日:1970-06-11
申请号:DE1812095
申请日:1968-12-02
Applicant: BASF AG
Inventor: LEO UNTERSTENHOEFER DR , SIEGFRIED MAIER DR-ING , BERBNER HEINZ
Abstract: Particle mixts. contg. 20-200 penetration bitumen 100, ethylene polymer 1-200 and optionally up to 50 pts. by wt. of polyisobutylene are prevented from agglomerating or caking by treatment with an aq. dispersion contng. (a) 20-50 wt.% of finely divided polymer consisting of at least 60 wt.% of vinyl- or vinylidenechloride polymer units. (b) 4-20 wt.% to finely divided melamine, melamine- and/or urea-CH2O resin, such that the sum of the wt.% in (a) and (b) is less than 60. The product is then dried.