Biuret polyisocyanate
WebTextiles. Because of their unique properties, aliphatic diisocyanates (ADIs) are used in textile coatings across a wide variety of applications such as fashion wear, footwear, … WebDec 3, 2014 · The invention relates to a method for preparing a hexamethylene diisocyanate biuret curing agent. The method comprises the following step of: adding different crystallized hydrates or a mixture of acetone and water to make water react with hexamethylene diisocyanate, removing white polyurea particles generated in the reaction …
Biuret polyisocyanate
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WebAug 27, 2003 · Basonat® HB 100 by BASF is a solvent-free, aliphatic polyisocyanate based on biuret-modified hexamethylene diisocyanate (HDI). Exhibits excellent weather … WebHDI-biuret is an aliphatic polyisocyanate based on the widely used hexamethylene-1,6-diisocyanate (HDI). These are primarily used for high performance coatings applications …
WebIn this study, the thermal behavior of new blocked polyisocyanate crosslinkers for polyurethane powder coatings was investigated. Blocked polyisocyanates were 掌桥科研 一站式科研服务平台 Web8. Method according to claim 6 wherein the selectively permeable membrane is a ceramic membrane that preferably has been pre-treated. 9. Method according to any one of the preceding claims wherein the original polyisocyanate mixture originates from the conversion of the corresponding polyamine mixture, optionally produced by a …
WebA water- and oil-repellent comprising an aqueous dispersion of a fluorine-containing copolymer including as a copolymerization unit (a) a perfluoroalkylalkyl (meth)acrylate represented by the general formula CnF2n+1CmH2mOCOCR═CH2 (wherein R represents hydrogen atom or methyl group; n represents 4, 5, or 6; and m represents 1, 2, 3, or 4), … WebMay 28, 2024 · 本发明公开了一种采用石灰粉改性沥青胶浆的无缝伸缩缝材料及其制备方法，按重量份数计包括以下原料：宽温域改性沥青622～753份，石灰粉746～903份，集料7200份。通过对无缝伸缩缝材料的组分、比例及制备工艺进行设计，使其具有良好的高温抗车辙性能、低温抗弯曲性能，可适应高低温环境下 ...
WebThe invention relates to a method for preparing HDI (hexamethylene diisocyanate) biuret, removing free HDI and preparing paint by virtue of a crystallization water method. The method provided by the invention comprises the following steps of: adding different crystallization water compounds to react with HDI, eliminating white polyurea particles …
WebMar 1, 2024 · DESMODUR® N100 by Covestro is an aliphatic solvent-free HDI biuret polyisocyanate. It can be thinned with ethyl acetate, butyl acetate, methoxypropyl acetate, acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, toluene, xylene and solvent naphtha® 100. DESMODUR® N100 has a shelf life of 6 months. can cinnamon increase blood sugarWebThe composition of polyisocyanates (IPDI and HDI) in the samples varied greatly, with maximum amounts ranging from up to 58% for HDI biuret to 96% for HDI isocyanurate. There was a significant ... can cinnamon induce laborWebHDI biuret. BASONAT HB series offers superior weather and chemical resistance with excellent gloss retention adn light stability. These products are compatible with a wide … can cinnamon irritate throatWebThe process of claim 1, wherein the free-radically crosslinkable component (KK) comprises an average carbamate and/or biuret and/or allophanate and/or urea and/or amide groups content of more than 0 to 2.0 mol per 1000 g of reactive component (KK). 3. fish licence victoriaWebDec 1, 2016 · 2.1.3. Synthesis of blocked polyisocyanate contained biuret moieties. The synthesis was carried out according to the method described in our earlier reports … fishliesWebThe present invention relates to a process for the preparation of polyisocyanates which have a biuret structure of reacting excess quantities of aliphatic diisocyanates with biuretizing agents at elevated temperature, characterized in that the biuretizing agent contains (a) α,α,α-trisubstituted acetic acids which do not contain isocyanate-reactive … can cinnamon lighten hairWebDescribed is an aqueous one-component coating composition comprising dispersed polyurethane and phyllosilicate. The polyurethane carries acid groups which are at least partially neutralized with a hydrophilic base selected from inorganic bases and organic mono-amines. The hydrophilic base has a water solubility at 20° C. of at least 150 g/l, … fish licker