Abstract:
A stretch releasable adhesive tape is described including a backing and a first layer of a pressure-sensitive adhesive composition coated on at least one surface of said backing, the adhesive tape having a thickness between 0.05 and 0.10mm, and elongation at break between 850% and 2200%), being capable of being firmly bonded to a substrate and thereafter being removable therefrom after being stretched at an angle at 90°degree or greater degree from the surface of a substrate without rupturing prior to the removal of the tape from the substrate and without leaving substantial pressure-sensitive adhesive residue on the substrate, wherein the pressure sensitive adhesive contains a functional group terminated polyurethane. An electronic device comprising a stretch releasable adhesive tape of the invention is also described.
Abstract:
Pre-polymer materials suitable for the preparation of superior sealants are provided along with silylated (silane terminated) hybrid acrylic polyurethane pre-polymers, and the preparation thereof, and sealants comprising the pre-polymers, and the preparation of the sealants are also provided. A silylated acrylic polyurethane hybrid pre-polymer of acrylic pre-polymer, and polyurethane including acrylic pre-polymer and a second component, which may be a silylated polyurethane (SPUR) or may be a mixture of an isocyanate, a polyol, and a silane is also provided. In a specific embodiment, the silylated hybrid acrylic polyurethane pre-polymer includes an acrylic pre-polymer, and a silylated polyurethane (SPUR).
Abstract:
Die vorliegende Erfindung betrifft ein Verbundmaterial, enthaltend nanoporöse Partikel und wenigstens ein Bindemittel aufgebaut aus wenigstens einem Isocyanat und wenigstens einem Polymer P ausgewählt aus der Gruppe bestehend aus Polyvinylamin, Poly(meth)acrylsäure bzw.- ester, Polyvinylalkohol, Polyvinylthiol und Mischungen davon, wobei das wenigstens eine Bindemittel in einer Menge von 0,1 bis 20 Gew.-%, bezogen auf die Menge an nanporösen Partikeln, eingesetzt wird, eine Zusammensetzung zur Herstellung eines solchen Verbundmaterials, ein Verfahren zur Herstellung eines solchen Verbundmaterials, Formkörper enthaltend das Verbundmaterial und die Verwendung des Verbundmaterials zur Wärme- und/oder Schalldämmung.
Abstract:
Described herein are metal amidine complexes in combination with a second compound useful as catalysts in a number of polymerization reactions, including polyurethane and epoxy polymerization reactions. Also described herein are various coating compositions and methods of using same for coating substrates using the metal amidine complexes in combination with a second compound.
Abstract:
Die vorliegende Erfindung betrifft durch Energieeintrag reparable Beschichtungsmassen, die bestimmte Fettsäureester enthalten, damit erhaltene durch Energieeintrag reparable Beschichtungen, sowie Verfahren zu deren Herstellung und deren Verwendung.
Abstract:
Two component (2K) waterborne polyurethane coating compositions which when cured achieve excellent anti-graffiti properties at low VOC level (below 100 g/L) are disclosed. The composition comprises (A) a fluorinated polyol and optionally a non-fluorinated polyol; and (B), a blend of polyisocyanates comprising a hydrophilically modified trimer of hexamethylene diisocyanate (HDT) and a hydrophilically modified trimer of isophorone diisocyanate (IPDT). The glass transition temperature of the ambient cured coatings, crosslinked network structure, and fluorine content at the surface enable excellent anti-graffiti properties. The waterborne coatings of the invention have excellent recoatability and exceptional chemical resistance.
Abstract:
A moisture-curable, graft-modified resin composition includes at least one thermoplastic polymer (i) and at least one silyl group containing polymer (ii) possessing at least one hydrolyzable silyl group that is bonded to the polymer through a linking group containing at least one heteroatom selected from the group consisting of oxygen and nitrogen, each of polymers (i) and (ii) having grafted thereto at least one same or different silane (iii) which, prior to being grafted, possesses at least one reactive carbon- carbon unsaturated bond.
Abstract:
The instant invention is an ultra-high solid content polyurethane dispersion, and a continuous process for producing ultra-high solid content polyurethane dispersions. The ultra-high solid content polyurethane dispersion includes the reaction product of: (1) a first component, wherein the first component is a first polyurethane prepolymer or a first polyurethane prepolymer emulsion; (2) a second component, wherein the second component is a second polyurethane prepolymer, a second polyurethane prepolymer emulsion, a low solid content polyurethane dispersion, a seed latex, or combinations thereof; (3) and a chain extender. The ultra-high solid content polyurethane dispersion has a solid content of at least 60 percent by weight of the solid, based on the total weight of the ultra-high solid content polyurethane dispersion, and a viscosity in the range of less than 5000 cps at 20 rpm at 21° C using spindle #4 with Brookfield viscometer. The method for producing a high-solid content polyurethane dispersion includes the following steps: (1) providing a first stream, wherein said first stream comprising a first polyurethane prepolymer or a first polyurethane prepolymer emulsion; (2) providing a second stream, wherein said second stream being a media phase selected from the group consisting of a second polyurethane prepolymer, a second polyurethane prepolymer emulsion, a polyurethane prepolymer dispersion, a seed latex emulsion, or combinations thereof; (3) continuously merging said first stream with said second stream in the presence of a chain extender; and (4) thereby forming a polyurethane dispersion having a solid content of at least 60 percent by weight of the solid, based on the total weight of the ultra-high solid content polyurethane dispersion, and a viscosity in the range of less than 5000 cps at 20 rpm at 21° C using spindle #4 with Brookfield viscometer.
Abstract:
Non-aqueous, liquid coating compositions which contain at least one polyisocyanate A, at least one isocyanate-functional polyurethane resin B differing from the at least one polyisocyanate A and at least one binder C with groups reactive towards the isocyanate groups of A and B, wherein the at least one polyisocyanate A is not solid at room temperature and/or is present in dissolved form and wherein the at least one polyurethane resin B is present as particles having a melting temperature of 40 to 180 0 C.