摘要:
An example inkjet ink composition includes a colorant, an acid, lithium, an organic solvent package, at least 50 wt% water with respect to the weight of the inkjet ink composition, and from about 0.25 wt% to about 2 wt%, with respect to the weight of the inkjet ink composition, of a polyurethane binder. The acid is selected from the group consisting of oleic acid, linoleic acid, undecanoic acid, dodecanoic acid, tridecanoic acid, and combinations thereof. The organic solvent package includes from about 1 wt% to about 12 wt%, with respect to the weight of the inkjet ink composition, of a first solvent having 1 or 2 free hydroxyl groups and 0 to 3 glycol units and from about 0.5 wt% to about 25 wt%, with respect to the weight of the inkjet ink composition, of a second solvent selected from the group consisting of 1-(2-hydroxyethyl)-2-pyrrolidinone, 2-pyrrolidone, glycerol, and combinations thereof.
摘要:
Die vorliegende Erfindung betrifft die Verwendung eines Amins der Formel (I) für härtbare Polymer-Zusammensetzungen. Das Amin der Formel (I) hat dabei vorteilhafte Eigenschaften bei Geruch und Emission sowie bei der Reaktivität, was den Zusammensetzungen insbesondere eine hervorragende Prozesssicherheit während der Lagerung, Applikation und Aushärtung verleiht.
摘要:
Partially crosslinked polyurethane polymers comprising diisocyanates and aliphatic hydrocarbon soft segments with a short-chain diol chain extender and a multifunctional amine and/or alcohol crosslinker to provide a polyurethane polymer with useful properties for the production of medical implant devices such as heart valves, are described. The polymers have an unexpected linear elastic region in a range from 5 - 100% and preferably between 10 - 35%. In some embodiments the polyurethanes are a thermally convertible gel formulation which may be converted to a liquid formulation by extended heating to render the polymer suitable for solvent processing techniques such as casting, spraying, spinning, etc. The invention also provides for living hinge polyurethane polymers which are thermally modifiable from a gel to a liquid and reaction injection moulded (RIM) polyurethanes with an enhanced flex life.
摘要:
The presently disclosed and claimed inventive concept(s) relates generally to polyethylene terephthalate ("PET") polymers, digested oligomeric derivatives of PET ("dPET"), functionalized oligomeric derivatives of dPET ("dfPET"), and polyurethane dispersions ("PUD") made from or incorporating dfPET therein.
摘要:
Die vorliegende Erfindung betrifft einen Bauteilverbund (1), umfassend wenigstens zwei miteinander verbundene Bauteile (2, 4), zwischen denen ein Spalt (6) mit einem darin angeordneten Dichtungselement (7) ausgebildet ist, wobei das Dichtungselement (7) einen thermoplastischen Polymerschaum umfasst, der zumindest bereichsweise mit wenigstens einem der Bauteile (2, 4) verschweißt ist. Weitere Gegenstände der Erfindung sind ein Verfahren zur Herstellung des Bauteilverbunds (1) sowie ein nach dem erfindungsgemäßen Verfahren erhältlicher Bauteilverbund (1).
摘要:
A two-part polyurethane adhesive comprising a prepolymer having the reaction product of a non-ionic surfactant and an allophanate modified isocyanate and a curative having a urethane modified high molecular weight polyol, a urethane modified cross-linking compound and a non-urethane modified low molecular weight chain extending compound. The curative has less than 5 equivalent percent total amino and hydroxyl groups having an equivalent weight greater than about 200. The two-part polyurethane adhesive may be used to adhere one or more substrates and can generally be applied without primer or any significant surface preparation.
摘要:
A dispersant comprising the addition product of a polyisocyanate having an average functionality of from 2 to 10 and one or more poly(oxyalkylene carbonyl) chains (POAC chain) such as those containing a POAC chain derived from epsilon -caprolactone and delta -valerolactone. The dispersants are used to disperse pigments in paints and printing inks.