Abstract:
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von Verbundelementen enthaltend thermisches Dämmmaterial (B), Klebstoff (C), und gegebenenfalls mindestens eine Deckschicht (A)wobei man das thermische Dämmmaterial (B) mit dem Klebstoff (C) verklebt und der Klebstoff (C) ein Polyurethanklebstoff ist, herstellbar durch Vermischen von Polyisocyanaten (a) mit Polyolen (b) mit zumindest zwei gegenüber Isocyanaten reaktiven Gruppen, Treibmitteln (c), enthaltend Wasser, und gegebenenfalls Kettenverlängerern (d), Katalysatoren (e) und sonstige Hilfsmittel (f), wobei die Polyole (b) Polyetherole enthalten und die Polyetherole, 50 bis 90 Gew.-% mindestens eines Polyalkylenoxids (b1 ) mit einer Hydroxylzahl von 120 bis 300 mg KOH/g, ausgehend von einem 2-funktionellen Startermolekül und einem Ethylenoxydanteil, bezogen auf den Gehalt an Alkylenoxyd, von 60 bis 100 Gew.-%, und einem Anteil an primären OH-Gruppen von 50 bis 100 %, 10 bis 50 Gew.-% mindestens eines Polyalkylenoxids (b2) mit einer Hydroxylzahl von 120 bis 600 mg KOH/g, ausgehend von einem difunktionellen und/oder einem trifunktionellen Startermolekül und einem Ethylenoxydanteil, bezogen auf den Gehalt an Alkylenoxyd, von 0 bis 40 Gew.-% und 0 bis 30 Gew.-% mindestens eines weiteren Polyalkylenoxids (b3) mit einer Hydroxylzahl von 100 bis 800 mg KOH/g, ausgehend von einem 2 bis 4-funktionellen Startermolekül, jeweils bezogen auf das Gesamtgewicht der Komponenten (b1) bis (b3), enthalten. Weiter betrifft die vorliegende Erfindung ein von Verbundelemente aus thermischem Dämmmaterial (B) und Klebstoff (C) sowie gegebenenfalls mindestens einer Deckschicht (A), herstellbar nach einem solchen Verfahren sowie die Verwendung des Klebstoffs (C) zur Verklebung thermischer Dämmmaterialien (B).
Abstract:
[Problem] To provide a method for producing a polyurethane foam molded article, allowing joining multiple molded parts at a smooth interface, immiscible with one another. [Solution] There is provided a method for producing a polyurethane foam molded article having 2 parts or more of polyurethane foam molded parts, comprising integrally molding and injecting 2 or more urethane stocks into a mold for foam molded article with a given time difference, wherein the ratio [Vis(A)/Vis(B)] of the viscosity at the time of injection of the urethane stock (A) to be injected first Vis(A)(mPa ⋅ s/25 °C) to the viscosity at the time of injection of the urethane stock (B) to be injected next Vis(B)(mPa ⋅ s/25 °C) is from 1.2 to 2.0, and wherein the viscosity at the time of injection Vis(B) of the urethane stock (B) is from 300 to 700 (mPa ⋅ s/25 °C), and the gel time of the urethane stocks (A) and (B) are 55 to 80 seconds.
Abstract:
A one-component epoxy-modified polyurethane and/or urea adhesive includes very high levels of reactive urethane group- and/or urea group-containing tougheners, an epoxy resin and epoxy hardener. These adhesives are formulated to cure at high temperatures and surprisingly provide high elongations, excellent thermal stability and good adhesive properties.
Abstract:
강산리그닌, 폴리올 및 이소시아네이트를 포함하는 조성물의 중합 생성물인 경질 폴리우레탄 폼 및 이를 제조하는 방법에 관한 것이다. 바이오매스 유래되는 재료인 리그닌을 사용하여 추가적인 화학적 개질 없이도 폴리올의 일부를 대체할 수 있고, 우수한 물성을 지닌 경질 폴리우레탄 폼을 제조할 수 있다.
Abstract:
Zwei-Komponenten-Polyurethan- Zusammensetzung mit einer Viskosität von 20 mPas bis 3000 mPas (EN ISO 2555, 25 °C) enthaltend i) 10 bis 80 Gew.-% mindestens eines Polyols mit einem zahlenmittleren Molekulargewicht von 200 g/mol bis 3000 g/ mol, ii) 5 bis 70 Gew.-% mindestens eines Polyisocyanats, iii) 0 bis 10 Gew.-% eines Katalysators, wobei die Zusammensetzung ein NCO:OH-Verhältnis von 2:1 bis 1:2 aufweist und als Polyisocyanate Polyisocyanate eingesetzt werden, wobei 3 bis 25 Mol% der NCO- Gruppen des Isocyanants zu Carbodiimiden und/oder Uretonimin umgesetzt sind. Die Zwei-Komponenten-Polyurethan- Zusammensetzungen werden als Matrixbindemittel für Faserverbundformkörper verwendet.
Abstract translation:双组分聚氨酯组合物具有20毫帕·秒的粘度为3000毫帕·秒(EN ISO 2555,25°C)含有ⅰ)10〜80重量%的至少一种多元醇的%的具有200g / mol的数均分子量至3000g /摩尔,ⅱ)5〜70重量%的至少一种多异氰酸酯的%,ⅲ)0至10重量的催化剂的%,所述组合物包含的NCO:2,和多异氰酸多异氰酸酯:2 OH之比为2:1至1 被使用,其中,所述Isocyanants的NCO基团的3至25摩尔%的碳二亚胺来和/或脲酮亚胺已经反应。 所述双组分聚氨酯组合物用作基体粘合剂纤维复合模制品。
Abstract:
The present invention describes cyclic amine compounds useful for catalysts for polyurethane form-forming compositions. The cyclic amine compounds of the invention provide distinct benefits for reaction compositions, methods, and polyurethane foams based on their desirable physical and catalytic properties.
Abstract:
Die Erfindung betrifft Beschichtungsmittelzusammensetzungen, enthaltend eine Isocyanatgruppen-haltige Komponente, eine Hydroxylgruppen-haltige Komponente einen Zink-Imidazol-Carboxylat-Komplex und eine monomere aromatische Carbonsäure, sowie die Verwendung eines Zink-Imidazol-Carboxylat-Komplexes in Gegenwart einer monomeren aromatischen Carbonsäure als Katalysatorsystem für die Urethanreaktion in Beschichtungsmittelzusammensetzungen.
Abstract:
Composition and process for low temperature curing of polyuretdione-polyol compositions in which the polyuretdione is prepared from a polyisocyanate with isocyanate groups and a polyol containing primary hydroxyl groups. The catalyst for the composition and process is an amine catalyst containing the group -N=C-N-, being aprotic, having a pKa greater than 20 and upon addition to the liquid coating composition causing a phase-change of the coating composition from liquid to solid at 25 0 C and 1atm. within one week.
Abstract:
The instant invention provides an isocyanate trimerisation catalyst system, a precursor formulation, a process for trimerising isocyanates, rigid foams made therefrom, and a process for making such foams. The trimerisation catalyst system comprises: (a) an imidazolium or imidazolinium cation; and (b) an isocyanate-trimer inducing anion; wherein said trimerisation catalyst system has a trimerisation activation temperature in the range of equal to or less than 73°C. The precursor formulation comprises: (1) at least 25 percent by weight of polyol, based on the weight of the precursor formulation; (2) less than 15 percent by weight of a trimerisation catalyst system, based on the weight of the precursor formulation, comprising; (a) an imidazolium or imidazolinium cation; and (c) an isocyanate-trimer inducing anion; wherein said trimerisation catalyst system has a trimerisation activation temperature in the range of equal to or less than 73°C; and (3) optionally one or more surfactants, one or more flame retardants, water, one or more antioxidants, one or more auxiliary blowing agents, one or more urethane catalysts, one or more auxiliary trimerisation catalysts, or combinations thereof. The process for trimerisation of isocyanates comprises the steps of: (1) providing one or more monomers selected from the group consisting of an isocyanate, a diisocyanate, a triisocyanatetriisocyanate, oligomeric isocyanate, a salt of any thereof, and a mixture of any thereof; (2) providing a trimerisation catalyst system comprising; (a) an imidazolium or imidazolinium cation; and (b) an isocyanate-trimer inducing anion; (c) wherein said trimerisation catalyst system has a trimerisation activation temperature in the range of equal to or less than 73°C; (3) trimerising said one or more monomers in the presence of said trimerisation catalyst; (4) thereby forming an isocyanurate trimer. The process for making the PIR foam comprises the steps of: (1) providing one or more monomers selected from the group consisting of an isocyanate, a diisocyanate, a triisocyanatetriisocyanate, oligomeric isocyanate, a salt of any thereof, and a mixture any thereof; (2) providing polyol; (3) providing a trimerisation catalyst system comprising; (a) an imidazolium or imidazolinium cation; and (b) an isocyanate-trimer inducing anion; wherein said trimerisation catalyst system has a trimerisation activation temperature in the range of equal to or less than 73°C; and (4) optionally providing one or more surfactants, one or more flame retardants, water, one or more antioxidants, one or more auxiliary blowing agents, one or more urethane catalysts, one or more auxiliary trimerisation catalysts, or combinations thereof; (5) contacting said one or more monomers, and said polyol, and optionally said one or more surfactants, and optionally said one or more flame retardants, and optionally said water, and optionally said one or more antioxidants, and optionally said one or more auxiliary blowing agents in the presence of said trimerisation catalyst system and optionally said one or more urethane catalysts, and optionally said one or more auxiliary trimerisation catalysts; (6) thereby forming said polyisocyanurate/polyurethane rigid foam. The PIR foam comprises the reaction product of one or more monomers selected from the group consisting of an isocyanate, a diisocyanate, a triisocyanatetriisocyanate, oligomeric isocyanate, a salt of any thereof, and a mixture any thereof with polyol in the presence of a trimerisation catalyst system comprising an imidazolium or imidazolinium cation, and an isocyanate-trimer inducing anion, and optionally one or more surfactants, optionally one or more flame retardants, optionally water, optionally one or more antioxidants, optionally one or more auxiliary blowing agents, optionally one or more additional urethane catalysts, and optionally one or more auxiliary trimerisation catalysts, or optionally combinations thereof, wherein the trimerisation catalyst system has a trimerisation activation temperature in the range of equal to or less than 73°C. The PIR foam comprises the reaction product of one or more monomers selected from the group consisting of an isocyanate, a diisocyanate, a triisocyanatetriisocyanate, oligomeric isocyanate, a salt of any thereof, and a mixture any thereof with polyol in the presence of a trimerisation catalyst system comprising an imidazolium or imidazolinium cation, and an isocyanate- trimer inducing anion, and optionally one or more surfactants, optionally one or more flame retardants, optionally water, optionally one or more antioxidants, optionally one or more auxiliary blowing agents, optionally one or more additional polyurethane catalysts, and optionally one or more auxiliary trimerisation catalysts, or optionally combinations thereof, wherein the PIR foam has a polyisocyanurate trimer ratio (Abs 1410 /Abs 1595 ) of at least 5 at a depth of 12 mm from the rising surface of the rigid foam, measured via ATR-FTIR spectroscopy.