摘要:
A xylylene diisocyanate composition contains a xylylene diisocyanate and a compound having retention time of 14.0 minutes to 14.6 minutes when the xylylene diisocyanate composition is measured by gas chromatography mass spectrometry under the specific measurement conditions, and a content ratio of the compound is adjusted to be 2000 ppm or less.
摘要:
The present invention relates to a process for preparing polyether polyols by addition of alkylene oxides onto H-functional starter substances, characterized in that at least one urethane alcohol of formula (II) where R 1 is linear or branched C 2 to C 24 -alkylene which may optionally be interrupted by heteroatoms such as O, S or N and may be substituted, R 2 is linear or branched C 2 to C 24 -alkylene which may optionally be interrupted by heteroatoms such as O, S or N and may be substituted, R 3 is H, linear or branched C 1 to C 24 -alkyl, C 3 to C 24 -cycloalkyl, C 4 to C 24 -aryl, C 5 to C 24 -aralkyl, C 2 to C 24 -alkenyl, C 2 to C 24 -alkynyl, each of which may optionally be interrupted by heteroatoms such as O, S or N and/or each of which may be substituted by alkyl, aryl and/or hydroxyl, is used as H-functional starter compound. The invention further provides the polyether polyols containing a urethane group, the polyether polyols obtainable by the process according to the invention, for the use of the inventive polyether polyols for preparation of a polyurethane polymer, and the resulting polyurethane polymers.
摘要:
The invention relates to a composite material containing nanoporous particles and at least one binder made of at least one isocyanate and at least one polymer P selected from the group consisting of polyvinylamine, poly(meth)acrylic acid or ester, polyvinyl alcohol, polyvinyl thiol, and mixtures thereof, wherein the at least one binder is used in a quantity of 0.1 to 20 wt.% based on the quantity of nanoporous particles. The invention also relates to a composition for producing such a composite material, to a method for producing such a composite material, to molded bodies containing the composite material, and to the use of the composite material for thermal and/or sound insulation.
摘要:
The invention relates to urethane compounds which release organoleptically active aromatic alcohols; a method for producing said urethane compounds; and the use thereof in cosmetic, glue, paint and plastic compositions, and cleaning product, softener, washing-up and dishwasher detergent compositions.
摘要:
The present invention provides novel polyacylurethane, and a process for producing the same. More specifically, the present invention provides polyacylurethane having a molecular weight of 500 to 50,000, wherein a main chain of said polyacylurethane is substantially composed of a repeating unit of the formula:
wherein R₁ represents an alkylene group or an alkenylene group having a molecular weight of 28 to 30,000, which may contain an alicyclic group, an aromatic group and/or an oxygen atom; and R₂ represents an alkylene group, an arylene group or an alkenylene group having 1 to 8 carbon atoms.
摘要翻译:本发明提供新颖的聚酰氨基甲酸酯及其制备方法。 更具体地说,本发明提供分子量为500〜50,000的聚酰氨基甲酸酯,其中所述多酰基氨基甲酸酯的主链基本上由下式的重复单元组成:其中R 1表示亚烷基或亚烯基, 分子量为28〜30,000,可以含有脂环族基团,芳香族基团和/或氧原子; R 2表示亚烷基,亚芳基或碳原子数1〜8的亚烯基。
摘要:
Verbindungen der Formel I RG-A-IN (I) mit IN eine Fotoinitatorgrundstruktur, A eine Spacergruppe und RG eine funktionelle reaktive Gruppe und den im Hauptanspruch hierfür angegebenen Bedeutungen können als coreaktive Fotoinitiatoren für die Fotopolymerisation ethylenisch ungesättigte Verbindungen enthaltender Systeme eingesetzt werden.
摘要:
Verbindungen der Formel I RG-A-IN (I) mit IN eine Fotoinitatorgrundstruktur, A eine Spacergruppe und RG eine funktionelle reaktive Gruppe und den im Hauptanspruch hierfür angegebenen Bedeutungen können als coreaktive Fotoinitiatoren für die Fotopolymerisation ethylenisch ungesättigte Verbindungen enthaltender Systeme eingesetzt werden.
摘要:
A process is disclosed for preparation of novel epoxy-substituted aralkyl isocyanates by reaction of tertiary aralkyl olefins and an eposidizing agent at a temperature of from -35°C to about 50°C. The compounds are useful as intermediates to produce curing agents for polyfunctional active hydrogen-containing compounds, e.g., by reaction with polyols to produce epoxy-pendant urethanes and then with polyamines, and the like.