摘要:
Multicomponent system curable thermally and with actinic radiation, comprising A) an isocyanate-reactive binder comprising A1) at least one unsaturated polyester whose molecule contains on average at least one group that can be activated with actinic radiation, of the formulae I, II and/or III wherein n is an integer from 1 to 10; and A2) at least one binder, different than (A1), whose molecule comprises on average at least two isocyanate-reactive functional groups, and/or A3) at least one binder, different than (A1), whose molecule comprises on average at least one isocyanate-reactive functional group and at least one reactive functional group having at least one bond that can be activated with actinic radiation, and B) a crosslinker comprising B1) at least one polyisocyanate and/or B2) at least one polyisocyanate whose molecule comprises on average at least one reactive functional group having at least one bond that can be activated with actinic radiation.
摘要:
Dyes of the formulaQ-X=HetwhereX is nitrogen or CH,Q is a 5- or 6-membered carbocyclic or heterocyclic radical and Het is a radical of the formula ##STR1## where Y is oxygen, sulfur, imino, C.sub.1 -C.sub.4 -alkylimino, substituted or unsubstituted phenylimino or the radical of an acidic-CH compound, A is oxygen or a radical of the formula C--U, where U is as defined in the description part, and E --is oxygen, sulfur, selenium, imino, C.sub.1 -C.sub.4 -alkylimino or substituted or unsubstituted phenylimino,are useful for thermal transfer and for dyeing or printing synthetic materials.
摘要:
Electrode materials suitable for electrochemical cells containing a) a polymeric binder which is composed essentially of polyisobutene having a limiting viscosity number of from 551 to 661 g/cm.sup.3 and b) a solid which is capable of reversibly taking up or releasing lithium ions in an electrochemical reaction.
摘要翻译:适用于电化学电池的电极材料,其含有a)聚合物粘合剂,其基本上由特异粘度为551至661g / cm 3的聚异丁烯组成,以及b)能够以电化学方式可逆地吸收或释放锂离子的固体 反应。
摘要:
The present invention is directed to a beam-curable coating composition for coating glass surfaces, particularly, optical glass fibers. The resultant coatings show slight or no loss of adhesion after exposure to moisture. The coating composition includes ethylenically unsaturated polyurethane, ethylenically unsaturated monomer, photoinitiator and a silane compound. The silane compound is an azidosilane and is added to improve adhesion of the coating agents exposed to moisture. Optionally, aminoalkoxysilanes may also be included.
摘要:
Binder systems suitable for electrocoating and consisting of a base resin A which carries groups which can be protonated with acids or cationic quaternary groups and, if desired, hydroxyl or thiol groups, a crosslinking component B which carries at least two blocked isocyanate groups per molecule and an organic iron compound C which is partially or completely soluble in water, as a catalyst for the thermal crosslinking of components A and B, and if desired, an additive D which increases the catalytic activity of C, are used to prepare dispersions which are used for electrocoating.
摘要:
Structured layers of heat-resistant polycondensates are prepared by a process wherein ethylenically unsaturated tetracarboxylates or adducts or salts of tetracarboxylates, which still contain at least one unesterified carboxylic acid group, with ethylenically unsaturated amines, amides or onium compounds mixed with compounds which contain amino, isocyanate or blocked isocyanate groups and can be subjected to polycondensation with the tetracarboxylates are applied as a layer to a substrate, this layer is exposed through a negative, the unexposed, soluble parts are then removed and the insoluble parts are converted into the final polycondensate form at elevated temperatures.
摘要:
In solutions of polyimide-forming starting materials, containing diamines and tetracarboxylic diesters, at least 2 mol % of the ester groups in the tetracarboxylic diesters are derived from alcohols of the general formulaHO--Z--O--X IorHO--Z--X IIwhere Z is a straight-chain or branched aliphatic radical of from 1 to 15 carbon atoms which can be interrupted by from 1 to 4 ether groups --O-- and X is an aromatic radical of from 5 to 20 carbon atoms which can also contain nitrogen, oxygen or sulfur as hetero atoms in the aromatic ring system, excepting benzyl alcohol as compound of the formula II in the case of the use of diamines having a basicity constant of less than or equal to 10.sup.-11.
摘要:
Radiation-reactive mixtures suitable for producing insulating layers and printed circuits are composed of certain precursors for preparing polyimides polyisoindoloquinazolinediones, polyoxazinediones, polyquinazolinediones or polyquinazolones and aryl-containing carbonyl compounds which when excited by UV radiation are capable of hydrogen abstraction, these mixtures undergoing solubility differentiation on irradiation with actinic light.
摘要:
Oligomeric or polymeric radiation-reactive intermediates of polyamides, polyisoindoloquinazolinediones, polyoxazinediones or polyquinazolinediones are prepared by a process in which a carboxyl-containing polyadduct of aromatic and/or heterocyclic tetracarboxylic dianhydrides and diamino compounds, or a carboxyl-containing polyadduct of aromatic and/or heterocyclic dihydroxydicarboxylic acids and diisocyanates, or a carboxyl-containing polyadduct of aromatic and/or heterocyclic diaminodicarboxylic acids and diisocyanates is subjected to an addition reaction with an ethylenically unsaturated monoisocyanate.The products prepared according to the invention are suitable as structure-forming functional or auxiliary layers in the construction of electronic components.
摘要:
Aqueous polymer dispersions which have a long shelf life are obtainable by dispersing a mixture of 15-50% by weight of a copolymer (A) of(I) 1.5-15% by weight of copolymerizable compounds of 3 to 10 carbon atoms which contain a carboxyl or carboxylic anhydride group,(II) 30-98.5% by weight of C.sub.1 -C.sub.20 -alkyl acrylates or methacrylates,(III) 0-60% by weight of vinylaromatics,(IV) 0-20% by weight of copolymerizable carbonyl compounds and(V) 0-20% by weight of further copolymerizable organic compounds not stated under (I) to (IV) and50-85% by weight of a copolymer (B) of40-100% by weight of the monomers (II) and0-60% by weight of the monomers (III) to (V),with the proviso that the copolymers (A) and (B) together contain, as components, up to 65% by weight of alkyl (meth)acrylates (II) whose homopolymers have glass transition temperatures of less than 0.degree. C., and that one or both of the copolymers (A) and (B) contain the monomers (IV) as components,in water with the addition of ammonia and a polyhydrazide (C), and the said dispersions are used for the preparation of finishes and coatings.