| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 560336000 |
Processes
| 129 |
| 560334000 |
Carbodiimide containing (i.e., -N=C=N- containing) | 2 |
| 20120065424 | LOW-CATALYST CARBODIIMIDE GROUPS AND/OR ISOCYANATE MIXTURES COMPRISING URETONIMINE GROUPS - A low-catalyst-content isocyanate mixture containing at least one of a carbodiimide group and a uretonimine groups, obtained by: reacting at least one monomeric diisocyanate (A) in the presence of phosphorus-containing catalyst (B), to obtain a reaction mixture comprising carbodiimide, where the reaction does not take place to complete conversion of the diisocyanate (A) and 1-80% by weight of the diisocyanate (A) employed remains in the reaction mixture as excess diisocyanate; and subsequently simultaneously removing, by distillation, a fraction of the excess of diisocyanate and the catalyst (B), to obtain the isocyanate mixture and a distillate, where the isocyanate mixture has a monomeric diisocyanate (A) content of 0.5%-20% by weight, based on the monomeric diisocyanate (A) employed, and a catalyst (B) content of 0% to 20% by weight, based on the catalyst (B) employed. In addition, a process for preparing a low-catalyst-content isocyanate mixture. | 03-15-2012 |
| 20130274506 | BIOBASED CARBODIIMIDES, A PROCESS FOR PREPARATION THEREOF AND USE THEREOF - The present invention relates to novel biobased carbodiimides, a process for production thereof and use thereof. The biobased carbodiimides according to the invention comprise the reaction product of at least one carbodiimide and a carbon acid compound isolated or produced from renewable raw materials and having a functionality >1 and/or a hydroxy carboxylic ester having 2-24 carbon atoms. | 10-17-2013 |
| 560335000 |
Biuret containing (i.e., -NH-C(=O)-NH-C(=O)-NH- containing, wherein substitution may be made for hydrogen only) | 2 |
| 20080262261 | STABLE LIQUID BIURET MODIFIED AND BIURET ALLOPHANATE MODIFIED TOLUENE DIISOCYANATES, PREPOLYMERS THEREOF, AND PROCESSES FOR THEIR PREPARATION - This invention relates to stable liquid biuret modified toluene diisocyanates, prepolymers thereof, stable liquid biuret allophanate modified toluene diisocyanates, prepolymers thereof, and to processes for the preparation of these compositions. The stable liquid biuret modified toluene diisocyanates comprise a secondary amine based biuret modified TDI having an NCO group content of about 12 to about 46% by weight. | 10-23-2008 |
| 20120226071 | PROCESS FOR PREPARING POLYISOCYANATES COMPRISING BIURET GROUPS - The present invention relates to a process for preparing polyisocyanates comprising biuret groups from diisocyanates or polyisocyanates and diamines. | 09-06-2012 |
| 560358000 |
Benzene ring bonded directly to the isocyanate group | 2 |
| 20150291512 | METHOD FOR PRODUCING ISOCYANATES - The invention relates to a method for preparing isocyanates by phosgenating the corresponding amines, wherein low-boiling secondary components, excess phosgene, and the co-product hydrogen chloride are separated from the crude liquid isocyanate stream, which is obtained after the phosgenation has occurred, within a maximum of 60 minutes, and wherein the crude liquid isocyanate stream is not exposed to temperatures above 250° C. until said separation. | 10-15-2015 |
| 20110190535 | PROCESS FOR PREPARING POLYAROMATIC POLYISOCYANATE COMPOSITIONS - Process for the preparation of polyaromatic polyamines comprising the step of reacting formaldehyde with at least one monoaromatic monoamine and at least one monoaromatic compound containing at least two amino functions in the presence of an acidic catalyst where a) the total amount of di-aromatic compounds in the polyaromatic polyamine mixture is in the range from about 25 wt % to about 50 wt % and b) the amount of monoaromatic compound containing at least two amine functions is in the range 5 to 30 mole % relative to 100 mole % of the total amount of monoaromatic monoamines and c) the amount of acidic catalyst used in the preparation of the polyaromatic polyamine mixture is less than about 0.4 moles per mole of formaldehyde or formaldehyde equivalents. | 08-04-2011 |
| 560331000 |
With preservative or stabilizer | 1 |
| 20130317252 | STABILIZED ISOCYANATE GROUP-CONTAINING ETHYLENICALLY UNSATURATED COMPOUND - An object of the present invention is to improve the stability of an ethylenically unsaturated compound having an isocyanate group in the molecule by preventing a polymerization, a multimerization reaction and a discoloration reaction of the ethylenically unsaturated compound. The present invention relates to a stabilizing composition for an isocyanate group-containing ethylenically unsaturated compound, comprising: an isocyanate group-containing ethylenically unsaturated compound (A) which comprises one or more isocyanate groups and one or more ethylenically unsaturated groups in the molecule; and a stabilizing agent (B) which is a compound in which at least one of the ethylenically unsaturated groups in the compound (A) is replaced with an alkyl halide group or an amino alkyl group which may have a substituent. | 11-28-2013 |
| Entries |
| Document | Title | Date |
|---|
| 20110178328 | Apparatus, Systems, and Methods for Purification of Isocyanate Mixtures - The present disclosure relates, according to some embodiments, to apparatus, systems, and/or methods for fractionating a feed mixture comprising, for example, one or more isocyanates, light components, solvents and/or heavier components. In some embodiments, fractionating an isocyanate feed mixture may comprise distilling the feed mixture in a non-adiabatic fractionating apparatus comprising a prefractionating section and/or column and a main section and/or column, which comprises a rectification section, a side section, and a stripping section. For example, isocyanates may be separated from light component(s), solvent(s) and/or heavier component(s). A fractionating apparatus may be configured and arranged, in some embodiments, as a dividing wall column. According to some embodiments of the disclosure, apparatus, systems, and/or methods may be energy efficient and/or may have a broad operating range. | 07-21-2011 |
