Patent application number | Description | Published |
20100252506 | METHOD FOR PRODUCING CHELATE RESINS - The present invention relates to a method of producing novel chelate resins based on crosslinked polymer beads starting with methacrylic compounds, containing aminomethyl groups and/or aminomethyl nitrogen heterocyclic groups as functional groups, that have a high uptake capacity for heavy metals and rapid kinetics. | 10-07-2010 |
20100307979 | CHELATE RESIN - The present application relates to novel chelate resins which contain, as a functional group, quaternary nitrogen atoms in structures of the general formula (I) | 12-09-2010 |
20110086935 | PICOLYLAMINE RESINS - The present application relates to novel monodisperse, gel-type or macroporous picolylamine resins which are based on at least one monovinylaromatic compound and at least one polyvinylaromatic compound and/or a (meth)acrylic compound and contain tertiary nitrogen atoms in structures of the general formula (I) | 04-14-2011 |
20110091365 | PICOLYLAMINE RESINS - The present application relates to novel gel-type or macroporous picolylamine resins which are based on at least one monovinylaromatic compound and at least one polyvinylaromatic compound and/or a (meth)acrylic compound and contain tertiary nitrogen atoms in structures of the general formula (I) | 04-21-2011 |
20110297382 | PROCESS FOR TRANSPORTING FRACTURE ("FRAC") FLUID ADDITIVES TO OIL AND GAS WELLS UTILIZING ION EXCHANGE RESIN - There is disclosed a process for transporting fracture fluid additives underground to oil and gas wells by attaching a fracture fluid additive to an ion exchange resin and flowing the ion exchange resin underground and thereafter releasing the frac fluid additives from the ion exchange resins and also there is provided the use of an ion exchange resin as a proppant and a frac fluid lubricant. | 12-08-2011 |
20120160499 | PROCESS FOR TRANSPORTING FRACTURE ("FRAC") FLUID ADDITIVES TO OIL AND GAS WELLS UTILIZING ION EXCHANGE RESIN - There is disclosed a process for transporting fracture fluid additives underground to oil and gas wells by attaching a fracture fluid additive to an ion exchange resin and flowing the ion exchange resin underground and thereafter releasing the frac fluid additives from the ion exchange resins and also there is provided the use of an ion exchange resin as a proppant and a frac fluid lubricant. | 06-28-2012 |
20130134099 | STEAM PURIFICATION - This invention relates to an improved process for producing weakly acidic cation exchange resins, in particular the purification of weakly acidic cation exchange resins derived from crosslinked poly(acrylonitrile) and also the use of steam for reducing the leaching of weakly acidic cation exchangers and finally a process for increasing the performance of water treatment systems, preferably of tap water treatment systems, using the weakly acidic cation exchangers produced according to the invention. | 05-30-2013 |
20130139649 | METHYLENE AMINOETHYL SULFONIC ACID CHELATING RESINS - The present invention relates to chelating resins containing methyleneaminoethylsulfonic acid groups, a process for producing them and also their use for removing heavy metals or metals of value from aqueous solutions having a pH of <4, preferably from process water in or from the electronics industry, the electroplating industry or the mining industry. | 06-06-2013 |
20130245140 | CHELATE RESINS - The present application relates to novel chelate resins which contain, as a functional group, quaternary nitrogen atoms in structures of the general formula (I) | 09-19-2013 |