摘要:
The invention relates to a method for producing PUR/PIR rigid foam materials, having the steps of reacting at least one polyester polyol (a), which can be obtained by reacting a.1.) at least one cyclic carboxylic acid anhydride; a.2.) at least one low-molecular diol with a molecular mass of 62 to 450 Da; and a.3.) at least one alkylene oxide; by esterifying the components a.1.) and a.2.) and subsequently oxalkylating the resulting carboxylic acid half-ester using component a.3.); wherein at least the oxalkylation is carried out using a.4.) at least one amine catalyst in which (the) nitrogen atom(s) is/are part of an aromatic ring system, with (b) at least one polyisocyanate-containing component, (c) at least one propellant, (d) at least one or more catalysts, (e) optionally at least one flameproofing agent and/or other auxiliary agents, and (f) optionally at least one additional compound with at least two groups which are reactive towards isocyanates and which differ from polyester polyol (a). The invention also relates to a PUR/PIR rigid foam material which can be obtained using a method according to the invention, to a composite element comprising the PUR/PIR rigid foam material according to the invention, at least one cover layer selected from concrete, wood, press board, aluminum, copper, steel, stainless steel, paper, non-wovens, and plastic, and multilayer composites or a combination thereof. The invention also relates to the use of the PUR/PIR rigid foam materials according to the invention or the composite element according to the invention for heat damping.
摘要:
Die Erfindung betrifft eine Dämmplatte, einen Klebemörtel zum Anbringen einer Dämmplatte an einer Wand oder einer Decke eines Gebäudes sowie eine Anordnung, bestehend aus einer Dämmplatte sowie einem Klebemörtel. Die Dämmplatte besteht aus mehreren Schichten, wobei die verschiedenen Schichten mittels einer Bindemittelschicht verbunden sind. Vorzugsweise weist die Dämmplatte zwei Schichten auf, nämlich eine Holzwolle-Deckschicht und eine Mineralwolleschicht, die mittels der Bindemittelschicht verklebt sind. Die Dämmplatte weist damit vorzugsweise drei Schichten auf. Die Mineralwolleschicht ist dabei auf der Seite, auf der die Bindemittelschicht angeordnet ist, perforiert. Dadurch ist es möglich, dass in die in der Mineralwolleschicht eingebrachten Löcher das Bindemittel der Bindemittelschicht eindringen kann. Durch die Perforation wird damit die Oberfläche der Mineralwolleschicht vergrößert, womit mehr Bindemittel mit der Mineralwolleschicht in Kontakt treten kann. Dadurch wird die Haltekraft zwischen der Mineralwolleschicht sowie der Bindemittelschicht deutlich erhöht.
摘要:
Die Erfindung betrifft ein Verbundbauteil, insbesondere als Wand-, Decken- oder Dachelement für den Hausbau. Dieses besteht aus mehreren, miteinander verbundenen Schichten von nebeneinander angeordneten, insbesondere länglichen Elementen, deren Ausrichtung von Schicht zu Schicht unterschiedlich ist. Die einzelnen Schichten werden durch Verbindungsmittel, insbesondere aus Metall, zusammengehalten.
摘要:
The object of the present invention is to provide a moisture-curable hot melt adhesive having high initial adhesive strength, long open time, excellent coating property and reduced stringing property. The present invention relates to a moisture-curable hot melt adhesive comprising (A) a urethane prepolymer having a terminal isocyanate group, (B) a metallocene-based polyolefin having a viscosity of 10,000 mPa·s or less at a temperature of 170° C. and (C) a polyester-polyether copolymer.
摘要:
An extrudable gypsum-based material is formed from a mixture that includes gypsum in the range of about 40 to 90% by dry weight percent, a secondary material in the range of about 0.1 to 50% by dry weight percent, a reinforcement fiber in the range of about 1 to 20% by dry weight percent, a rheology modifying agent in the range of about 0.5 to 10% by dry weight percent, a retarder in the range of about 0.1 to 8% by dry weight percent, a water in the range of 10 to 50% of a total wet material weight.
摘要:
An extrudable gypsum-based material is formed from a mixture that includes gypsum in the range of about 40 to 90% by dry weight percent, a secondary material in the range of about 0.1 to 50% by dry weight percent, a reinforcement fiber in the range of about 1 to 20% by dry weight percent, a rheology modifying agent in the range of about 0.5 to 10% by dry weight percent, a retarder in the range of about 0.1 to 8% by dry weight percent, a water in the range of 10 to 50% of a total wet material weight.
摘要:
A final topcoat coating composition and method employs a multistage latex polymer having acetoacetyl or ketone functionality and a hydrazide, hydrazine or polyamine crosslinking agent that provides a crush resistant final topcoat composition. The compositions may be used to coat a variety of substrates including wood, cement and fiber cement.