High solids coating compositions are made by blending a crosslinkable organic polymer, a solvent, at least one reactive urea derivative, a crosslinking agent and optionally a crosslinking catalyst. The resultant high solids coating compositions can be either solutions or dispersions depending upon the particular polymer and solvent and the reactive urea chosen as the reactive cosolvent or reactive diluent. The reactive urea derivatives can be mixed with reactive carbamate derivatives.
Water borne high solids coating compositions are made by blending a water-dispersible, crosslinkable organic polymer free of amide groups, water, at least one reactive urea derivative, a crosslinking agent and optionally a crosslinking catalyst. Optionally a mixture of reactive urea and carbamate derivatives can be used.
The resultant water borne high solids coating compositions can be either solutions or dispersions depending upon the particular polymer and reactive urea or carbamate chosen as the reactive cosolvent or reactive diluent.
Process for the production of phosphorous compounds
申请人:ENGELHARD CORPORATION
公开号:EP1816132A1
公开(公告)日:2007-08-08
The invention is directed to a process for the production of certain phosphorous, namely urea, thio-urea and sulphonamide phosphorous compounds. The present invention provides a process for the production of phosphorous compounds which process allows an easy and effective separation of the reaction products from impurities by applying a solid alkaline ionexchange resin.
Compounds on the basis of 2 and 4-chromeenylidene-merocyaninese respectively, and their use
申请人:Dyomics GmbH
公开号:US20030045717A1
公开(公告)日:2003-03-06
The invention relates to compounds based on merocyanines with the general formulas I and/or II,
1
where n=0 or an integer from 1 to 3, X═O or S and the residues R
1
to R
12
are the same or different and signify in particular hydrogen or various organic residues, without or with functional groups, and R
2
incorporates an amine function.
The compounds in accordance with the invention are suitable as fluorescent dyes (fluorophores) for used in optical determination and demonstration methods, in particular those employing fluorescence, for example in medicine, pharmacology and the biological, materials and environmental sciences. They are characterized by high photostability and long storage life, and exhibit a high fluorescence quantum yield. Excitation causing them to emit light can be achieved in a simple manner, by white-light sources or by laser irradiation in the UV, visible or NIR spectral region.
本发明涉及基于通式 I 和/或 II 的美拉德花青素的化合物、
1
其中 n 等于 0 或 1 至 3 的整数,X=boxH;O 或 S,残基 R
1
至 R
12
相同或不同,尤其表示氢或各种有机残基,不含或含官能团,以及 R
2
含有胺官能团。
符合本发明的化合物适合用作荧光染料(荧光团),用于光学测定和演示方法,特别是采用荧光的方法,例如用于医学、药理学以及生物、材料和环境科学。荧光染料的特点是光稳定性高、储存寿命长、荧光量子产率高。使它们发光的激发可以通过简单的方式实现,如白光光源或紫外、可见或近红外光谱区的激光照射。
Unsaturated compounds containing carbamate terminal groups or urea terminal groups
申请人:——
公开号:US20040097642A1
公开(公告)日:2004-05-20
A compound contains at least one unsaturated free-radically or cationically polymerizable group and at least one carbamate or urea end group.