摘要:
A perfluoropolyether-containing composition, which can easily conform to a fluorine-free substrate and can form a film on a surface of the substrate to fix the composition to the substrate surface, wherein the composition is a carbon-carbon double bond-containing composition comprising (A) a triisocyanate prepared by trimerizing a diisocyanate, and (B) a combination of at least two active hydrogen-containing compounds, and the component (B) comprises (B-1) a perfluoropolyether having at least one active hydrogen, and (B-2) a monomer having active hydrogen and a carbon-carbon double bond.
摘要:
A thermosensitive recording material comprising a thermosensitive layer provided on a substrate, and the thermosensitive layer comprises as main ingredients a leuco dye and a developer to make colored state of said leuco dye when heated, wherein the developer is an oligomer composition obtained from the reaction of a polyvalent isocyanate compound represented by following Formula (I) with an aromatic amine represented by following Formula (II); 1 where X represents a try- or more-valent group, a represents an integer numeral of 3 or more, b and c represent respectively integer numerals in the range of 0 to 5 and they satisfy a relation of bnullcnull1 to 5, Z represents hydrogen atom, alkyl group, allyl group or aryl group, and the aryl group may include condensed ling structure thereof, and d represents an integer numeral in the range of 0 to 4. This developer shows excellent reliabilities of both image and background area, and also shows an excellent color-developing characteristics (color developing sensitivity and image density).
摘要翻译:一种热敏记录材料,其包含设置在基材上的热敏层,并且所述热敏层包含作为主要成分的无色染料和显影剂,以在加热时形成所述无色染料的着色状态,其中所述显影剂是由 由下式(I)表示的多价异氰酸酯化合物与由下式(II)表示的芳族胺组成的多元异氰酸酯化合物; 其中X表示一价或多价基团,a表示3以上的整数,b和c分别表示0〜5的整数,并且满足b + c = 1〜5的关系, Z表示氢原子,烷基,烯丙基或芳基,芳基可以包括其缩合结构,d表示0〜4的整数。该显色剂显示出优异的图像和背景面积的可靠性 并且还显示出优异的显色特性(显色灵敏度和图像浓度)。
摘要:
Provided are novel blocked polyisocyanurates to be suitably used as an adhesiveness providing agent, coating material, sealant and crosslinking agent for polymers containing active hydrogens. Also provided are polyvinyl chloride plastisol compositions comprising a polyvinyl chloride resin, the above blocked polyisocyanurate as an adhesiveness providing agent, plasticizer and a specific agent for accelerating dissociation of the blocked polyisocyanurate. These compositions have excellent properties such as high adhesiveness even cured at low temperatures and resistance to yellowing, and are suitably used particularly as sealants for car body.
摘要:
The present invention relates to a powder lacquer containing a mixture of(A) a polyisocyanate component in power form which is solid below about 40.degree. C. and liquid above about 150.degree. C. and(B) a organic polyhydroxyl component in powder form which is solid below about 40.degree. C. and liquid above about 150.degree. C.,components (A) and (B) being present in quantities corresponding to an equivalent ratio of isocyanate groups to hydroxyl groups of about 0.6:1 to 1.2:1, characterized in that component (A) is based on a polyisocyanate or polyisocyanate mixture which(a) does not contain any blocking agents for isocyanate groups,(b) has a content of free isocyanate groups (expressed as NCO) attached to tertiary, aliphatic or cycloaliphatic carbon atoms of about 8 to 24% by weight and an average NCO functionality of at least 2.1,(c) has a urethane group content (expressed as --NH--CO--O--) of about 3 to 30% by weight and(d) has an isocyanurate group content (expressed as C.sub.3 N.sub.3 O.sub.3) of 0 to about 30% by weight.The present invention also relates to the use of this powder lacquer for the production of coatings on heat-resistant substrates by methods known in powder lacquer technology.
摘要翻译:本发明涉及一种粉末漆,其含有(A)固体低于约40℃的功率形式的多异氰酸酯组分和高于约150℃的液体的混合物和(B)粉末形式的有机多羟基组分, 固体低于约40℃,液体高于约150℃,组分(A)和(B)的存在量相当于异氰酸酯基与羟基的当量比为约0.6:1至1.2:1, 其特征在于组分(A)是基于多异氰酸酯或多异氰酸酯混合物,其中(a)不含任何异氰酸酯基团的封端剂,(b)具有连接到叔脂族或叔碳原子上的游离异氰酸酯基团(表示为NCO) 约8至24重量%的脂环族碳原子和平均NCO官能度至少为2.1,(c)具有约3至30重量%的氨基甲酸酯基含量(表示为-NH-CO-O-)和( d)具有0至约的异氰脲酸酯基含量(表示为C 3 N 3 O 3) 30重量%。 本发明还涉及这种粉末漆用于通过粉末漆技术中已知的方法在耐热基材上生产涂层的用途。
摘要:
The present invention is directed to a process for reducing the free monomer content of polyisocyanate adduct mixtures wherein the adduct has an average isocyanate functionality of greater than about 1.8 which comprises treating the polyisocyanate adduct mixture in the presence of 2 to about 30 percent by weight of an inert solvent, based on the weight of the polyisocyanate mixture, in an agitated thin-layer evaporator under conditions sufficient to reduce the free monomer content of the polyisocyanate adduct mixture below that level which is obtainable in the absence of a solvent.
摘要:
An organic solvent based, thermosetting coating composition of a hydroxy functional epoxy-polyester graft copolymer and blocked polyisocyanate crosslinking agent. The coating composition may be formulated as a hot sprayable, high solids coating composition suitable for use as a chip resistant automotive vehicle primer adapted for use on body panel areas subject to chipping by stones, gravel and other road debris. Alternatively, the composition may be formulated as a high solids composition sprayable with conventional spraying equipment. Hydroxy functional epoxy-polyester graft copolymer is prepared by polymerization of lactone monomers in the presence of hydroxy functional epoxy ester resin precursor. Such precursor resin is formed by reaction of diepoxide chain extended substantially simultaneously with diphenol and dicarboxylic acid and chain terminated with acid component comprising primary hydroxy functional acid.
摘要:
A hydroxy functional epoxy-polyester graft copolymer and solvent-based thermosetting coating composition comprising said copolymer and polyfunctional, hydroxy-reactive crosslinking agent. The coating composition may be formulated as hot sprayable, high solids coating composition suitable for use as chip resistant automotive vehicle primer suitable for use on body panel areas subject to chipping by stones, gravel and other road debris. The composition also may be formulated as a high solids composition sprayable with conventional spraying equipment. The hydroxy functional epoxy-polyester graft copolymer is the product of polymerization of lactone monomers in presence of hydroxy functional epoxy ester resin precursor. The precursor resin is the product of modified diepoxide and hydroxy functional secondary amine, the modified diepoxide being the product of the polymerization of lactone monomers in the presence of diepoxide which has been chain extended with dicarboxylic acid.
摘要:
Disclosed are novel compositions capable of catalytically trimerizing organic isocyanates said compositions comprising solutions of the reaction products obtained by reacting in an inert solvent in substantially equimolar proportions electron-rich ketene-aminals with electron-poor olefins having the respective formulae (I) and (II) ##STR1## The variously substituted electron-rich ketene-aminals (I), as the name implies, have high electron density associated with the double bond because of the two tertiary amine groups while the electron-poor olefins (II) have the opposite situation due to the presence of electron withdrawing substituents R.sub.9 and R.sub.10.Also disclosed is an improved process for trimerizing organic isocyanates using the above catalyst compositions including the preparation of polyisocyanurate polymers and isocyanurate-modified polyisocyanates.
摘要:
A solvent-based thermosetting coating composition comprising a hydroxy functional epoxy resin, linear polycaprolactone diol, and blocked polyisocyanate crosslinking agent. The coating composition may be formulated as hot sprayable, high solids coating composition suitable for use as chip resistant automotive vehicle primer adapted for use on body panel areas subject to chipping by stones, gravel and other road debris. Alternatively, the composition may be formulated as a high solids composition sprayable with conventional spraying equipment. The hydroxy functional epoxy resin is formed by reaction of diepoxide, previously chain extended with diphenol, with hydroxy functional secondary amine in chain terminating reaction.
摘要:
A solvent based thermosetting coating composition comprising hydroxy functional epoxy ester resin, linear polycaprolactone diol, and blocked polyisocyanate crosslinking agent. The coating composition may be formulated as hot sprayable, high solids coating composition suitable for use as a chip resistant automotive vehicle primer adapted for use on body panel areas subject to chipping by stones, gravel and other road debris. Alternatively, the composition may be formulated as a high solids composition sprayable with conventional spraying equipment. The hydroxy functional epoxy ester resin is formed by reaction of diepoxide, chain extended with diphenol and dicarboxylic acid, with hydroxy functional secondary amine in chain terminating reaction.