Abstract:
Described is a class of symmetrical and asymmetrical N-alkyl lactam ethers. One preferred ether is bis-N-ethyl pyrrolidone ether. Preferred compositions and uses of the ethers are in performance chemicals, personal care, and pharmaceutical fields, where they function a variety of roles, including as a solvent, solubilizer, freezing point depressor, diluent, extracting agent, cleaning agent, degreaser, absorbent and/or dispersion agent.
Abstract:
Water-borne cross-linking polymeric compositions and related embodiments, such as methods of making and using the compositions, as well as products formed with said compositions are described. For example, the water-borne composition may comprise polymers incorporating cross-linking functionality such as, but not limited to, carbonyl or epoxy functionality, and a blocked cross-linking agent, for example, a hydrazone. The cross-linking functionality does not react with the blocked cross-linking agent; however, the blocked cross-linking agent is capable of reacting with the alternative form cross-linking agent such as, but not limited to, a hydrazide, to yield a cross-linked polymer. The alternative form cross-linking agent may be formed in an equilibrium reaction including the blocked cross-linking agent.
Abstract:
An absorbable PEG-based hydrogel prepared from a multi-arm-PEG-vinylsulfone having about 3 to about 8 arms and a multi-arm-PEG-R-sulfhydryl having about 3 to about 8 arms; where R is defined as an ester linkage, such as carboxylate ester, lactate ester, and isobutyrate ester have been disclosed. Additionally, sustained release compositions that are prepared from an absorbable PEG-based hydrogel and a protein have been disclosed which provide sustained release of proteins and peptides.
Abstract:
Redispersible polymer powder compositions which include a polyglycol in admixture with a redispersible polymer powder (RDP), which powder includes a codried mixture of a carboxylated, water insoluble film-forming styrene butadiene polymer and a colloidal stabilizer, results in cement compositions having unexpectedly superior overall bonding strength and adhesion after water immersion. Use of the polyglycol provides good workability or ease of troweling during application. In addition, the RDP composition, which includes the RDP and the polyglycol, provides the cement-based composition with excellent abrasion resistance, surface appearance, and color. Also, the RDP composition provides for at least a 30% reduction, for example a 50% or more reduction in the amount of retarder or retardant employed in the dry mix formulation for cement compositions, such as self leveling flooring compounds or compositions, and cement-based tile adhesives.
Abstract:
The present invention is directed to a pneumatic tire having a rubber component including(A) 100 parts by weight (phr) of a rubber containing olefinic unsaturation;(B) from 50 to 100 phr of silica;(C) from 1 to 40 phr of a polyoctenamer.
Abstract:
Solution comprising a sulfone polymer and a N-acyl-pyrrolidine of formula I wherein R 1 to R 9 independently from each other are a hydrogen atom or a methyl group. The solution is applied in membrane formation with polyvinylpyrrolidone as optional component.
Abstract:
Die vorliegende Erfindung betrifft Zusammensetzungen umfassend mindestens ein Polymer, enthaltend Triarylamin-Wiederholungseinheiten, und mindestens ein Salz, Verfahren zu deren Herstellung sowie deren Verwendung in elektronischen Vorrichtungen, insbesondere in organischen Elektrolumineszenzvorrichtungen, sogenannten OLEDs (OLED = Organic Light Emitting Diodes). Darüber hinaus betrifft die vorliegende Erfindung auch organische Elektrolumineszenzvorrichtungen enthaltend diese Zusammensetzungen.
Abstract:
Lösungen von Polyvinylidenfluorid (PVDF) oder Copolymeren des 1,1-Difluorethylen in einem Lösemittel, welches N-Formylmorpholin (NFM), N-Acetylmorpholin (NAM) oder deren Gemische und zusätzlich ein Co-Lösemittel ausgewählt aus Alkylencarbonat, Mono-, Di- oder Polyalkylenglycoldialkylether oder deren Gemische enthält.
Abstract:
Die vorliegende Erfindung umfasst ein einkomponentiges Bindemittel für Heißsiegelanwendungen, welches für die Versiegelung von Polyesterfolien, insbesondere von Polyethylenterephthalat-Folien (PET-Folien), gegen Polystyrol-, PVC- und Polyester-Behälter eingesetzt werden kann. Bei diesen Polyestern kann es sich insbesondere um Polyethylenterephthalat (PET) oder um Polymilchsäure (PLA) handeln. Dabei zeichnen sich die Bindemittel neben einer guten Siegelnahtfestigkeiten besonders durch eine gute Transparenz sowie hervorragende Applikationseigenschaft aus. Ein wesentlicher Aspekt der Erfindung ist, dass die Versiegelung ohne Zugabe von Haftvermittlern, besonders ohne die Zugabe von Haftvermittlern auf Polyvinylchloridbasis (PVC) oder auf Polyesterbasis, erfolgen kann, und dass trotzdem gegenüber PS- und PET-Behältern zumindest vergleichbare, teilweise verbesserte Barriere- und Siegeleigenschaften erreicht werden als mit bereits im Markt erhältlichen Heißsiegelsystemen.