摘要:
Pressurized, blowing agent-containing isocyanate semiprepolymer mixtures advantageously having an isocyanate content of from 5 to 25% and based on organic polyisocyanates and alkoxylated lignin having a hydroxyl number of from 30 to 80, preferably in admixture with lignin-free polyhydroxyl compounds are used for producing single-component polyurethane foams.
摘要:
The invention relates to pressurized, blowing-agent-containing isocyanate semiprepolymer mixtures, advantageously having an isocyanate content of from 5 to 25% by weight, based on organic polyisocyanates and polyhydroxyl compounds which are used in combination with a linear, branched or cyclic, saturated or olefinically unsaturated monoalcohol having 1 to 25 carbon atoms and/or hydroxyketones, preferably .beta.-hydroxyketones, the use thereof for the production of one-component polyurethane foams by allowing the isocyanate semiprepolymer mixtures to depressurize, and a process therefor.
摘要:
A phase-stable polyol component comprisesA1) at least one polyether polyalcohol and/or polyether ester polyalcohol,A2) at least one polyester polyol andA3) at least one liquid flame retardant additive,where the constituents A1:A2:A3 are present in a weight ratio of 10.+-.4.5:13.+-.4:14.+-.4.5.
摘要:
Composite elements have the following layer structure: (i) from 2 to 20 mm of metal, (ii) from 10 to 300 mm of polyisocyanate polyaddition products obtainable by reacting (a) isocyanates with (b) compounds which are reactive toward isocyanates in the presence of from 1 to 50% by volume, based on the volume of the polyisocyanate polyaddition products, of at least one gas (c) and also, if desired, (d) catalysts and/or (f) auxiliaries and/or additives, (iii) from 2 to 20 mm of metal.
摘要:
Composite elements having the following layer structure: (i) 2-20 mm of metal, (ii) 10-100 mm of compact polyisocyanate polyaddition products obtainable by reacting (a) isocyanates with (b) polyether polyalcohols, if desired in the presence of (c) catalysts and/or (d) auxiliaries and/or additives, (iii) 2-20 mm of metal.
摘要:
The invention relates to composite elements comprising the following laminar structure: (i) 2 to 20 mm metal; (ii) 10 to 100 mm polyisocyanate polyaddition products having a density ranging from 350 to 1050 kg/m3 that can be obtained by reacting (a) isocyanates with (b) compounds, which are reactive to isocyanates, in the presence of (f) expanding agents, and; (iii) 2 to 20 mm metal.
摘要翻译:本发明涉及包括以下层状结构的复合元件:(i)2至20mm的金属; (ii)通过使(a)异氰酸酯与(b)与异氰酸酯反应的化合物在(f)中与异氰酸酯反应的异氰酸酯反应得到的密度为350至1050kg / m 3的10至100mm多异氰酸酯加聚物, 扩张剂,和; (iii)2至20毫米金属。
摘要:
The present invention relates to novel triazene compounds, to a process for their preparation, to pharmaceutical compositions comprising them, and to the use thereof in the treatment of cancer diseases in humans. The novel triazene compounds are distinguished, as compared with the known triazene compounds, by improved activity while at the same time having reduced toxicity, that is to say by fewer side-effects.
摘要:
Novel phenoxybenzoic acid derivatives of the general formula ##STR1## in which R.sup.1 and R.sup.2, independently of one another, each represent hydrogen or methyl,n represents zero or 1,x represents hydrogen or chlorine,y represents oxygen, sulphur, imino (NH) or alkylimino (N-alkyl) andz has the meaning given in the specification,a process for the preparation of the novel compounds and their use as herbicides and plant growth regulators.
摘要:
5-Halogenoalkyl-1,3,4-thiadiazol-2-yloxyacetamides of the formula ##STR1## in which R.sup.1 is halogenoalkyl, with the exception of trifluoromethyl, andR.sup.2 and R.sup.3 each independently is hydrogen, alkyl, alkenyl, alkinyl, in each case optionally substituted cycloalkyl or cycloalkenyl, halogenoalkyl, alkoxyalkyl, alkoxyalkylenoxy, alkoxy, aralkyl or optionally substituted aryl, orR.sup.2 and R.sup.3, together with the nitrogen atom to which they are bonded, form an optionally substituted heterocyclic radical which can contain further hetero-atoms,which possess herbicidal and fungicidal activity. The intermediates 5-chlorodifluoromethyl- and 5-dichlorofluoromethyl-2-chloro-1,3,4- thiadiazole are also new.
摘要:
Herbicidally active novel 4,5-disubstituted 1,3-thiazol-2-yloxyacetamides of the formula ##STR1## in which R.sup.1 is fluorine or chlorine,R.sup.2 is alkyl or halogenoalkyl, andR.sup.3 and R.sup.4 each independently is alkyl, alkenyl, alkinyl, optionally substituted cycloalkyl, optionally substituted cycloalkenyl, halogenoalkyl, alkoxyalkyl, alkoxyalkyleneoxy, alkoxy, aralkyl or optionally substituted aryl, orR.sub.3 and R.sub.4, conjointly with the nitrogen atom to which they are bonded form an optionally substituted, heterocyclic ring which can contain further hetero-atoms.