13-06-2019 дата публикации
Номер: US20190177511A1
Принадлежит:
The invention relates to a method for preparing a hydrophobically modified clay, wherein the clay modifying agent corresponds to a quaternary ammonium based compound. The present invention further relates to a hydrophobically modified clay obtainable by such a method and to a suspension comprising such a clay, as well to the use of such a hydrophobically modified clay and of a suspension comprising such a hydrophobically modified clay. Furthermore, the present invention is also directed to a polymeric composition comprising a hydrophobically modified clay and/or a suspension comprising a hydrophobically modified clay. 2: The method according to claim 1 , wherein R claim 1 , R claim 1 , R claim 1 , and Rmay independently be substituted with one or more hydroxyl groups.3: The method according to claim 1 , wherein claim 1 , in formula (I) claim 1 , one claim 1 , two or three of R claim 1 , R claim 1 , R claim 1 , and Rrepresent(s) methyl.4: The method according to claim 1 , wherein R claim 1 , R claim 1 , R claim 1 , and Reach have a chain length of 5 to 50 non-hydrogen atoms.5: The method according to claim 1 , wherein X is selected from the group consisting of Br claim 1 , Cl claim 1 , F claim 1 , I claim 1 , CHSO claim 1 , ClO claim 1 , BF claim 1 , PF claim 1 , SbF claim 1 , triflate anion claim 1 , and tosylate anion.6: The method according to claim 1 , wherein the ratio of the number of atoms of the groups of formula (II) to the number of atoms of the linear or branched claim 1 , substituted or unsubstituted alkyl or alkenyl moieties is 2 or more.8: The method according to claim 1 , wherein the clay of step a) is selected from the group consisting of smectite claim 1 , montmorillonite claim 1 , saponite claim 1 , beidellite claim 1 , montronite claim 1 , hectorite claim 1 , stevensite claim 1 , vermiculite claim 1 , kaolinite claim 1 , hallosite claim 1 , magadiite claim 1 , and fluorohectorite.9: The method according to claim 8 , wherein the clay of step a) is ...
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