发明名称 |
Fremgangsmåde til fremstilling af med organosiliciumforbindelser modificerede fyldstoffer, de således fremstillede fyldstoffer og deres anvendelse |
摘要 |
<p>Surface modification of natural or synthetic oxidic or silicate fillers (I) comprises using one or more organosilicon cpds. of formula: (R'n(RO)3-nSi-(Alc)m-(Ar)p)q(B) (I). In (I), B = -SCN (when q = 1) or -Sx- (when q = 2); R and R' = 1-4C alkyl, phenyl in which every R and R' is identical or different, R = 1-4C-alkyl-1-4C-alkoxy gp.; n = 0, 1 or 2; alc = bivalent, linear or branched 1-6C hydrocarbon; m = 0 or 1; Ar = 6-12C arylene gp.; p = 0 or 1 (p+m does not equal 0); x = 2-8. The novelty is that: (a) at least one organosilicon cpd. is intensively mixed with the filler at temps. less than 60 deg.C in a concn. of up to 3.5 x 10 power (-6) mol. trialkoxysilyl gps. on a square meter of filler surface; (b) followed by hydrophobising the homogenised mixt. in a preheated mixer, tempered bed or another suitable heated reaction vessel at temps. larger than 60 deg.C.</p> |
申请公布号 |
DK0442143(T3) |
申请公布日期 |
1994.04.18 |
申请号 |
DK19900125475T |
申请日期 |
1990.12.24 |
申请人 |
DEGUSSA AG |
发明人 |
WOLFF, SIEGFRIED, DR.;GOERL, UDO, DR.;DEUSSER, HANS, DR. |
分类号 |
C08K9/00;C08K9/06;C08L21/00;C09C1/30;C09C3/12;(IPC1-7):C09C3/12 |
主分类号 |
C08K9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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