Abstract:
An aqueous coating composition comprising a crosslinkable water-dispersible hyperbranched macromolecule(s) wherein the composition when drying has an open time of at least 20 minutes, a wet edge time of at least 10 minutes, a tack free time ≤ 15 hours, a dust free time ≤ 5 hours and an equilibrium viscosity of ≤ 5,000 Pa.s at any solids content when drying in the range of from 20 to 55 % by weight using any shear rate in the range of from 9 ± 0.5 to 90 ± 5 s-1 and at 23 ± 2 °C.
Abstract:
La présente invention se rapporte à un procédé de réalisation d'assemblages supramoléculaires particuliers de colorants, notamment de cyanines, appelés agrégats J. Selon l'invention, le procédé consiste à déposer sur un support une monocouche de dendrimères sur laquelle est ensuite déposée des cyanines en solution qui formeront une monocouche organisée d'agrégats J. Ce procédé peut être utilisé pour réaliser une source de lumière secondaire (28) capable d'injecter de la lumière dans un guide d'onde (24) à partir de l'énergie lumineuse reçue d'une source de lumière primaire (30) émettant à une longueur d'onde différente. La source secondaire formée d'agrégats J incorporant des accepteurs d'énergie peut ainsi être intégrée dans le dispositif optique (23) qui incorpore le guide d'onde.
Abstract:
An air drying waterborne resin composition is disclosed. Said resin composition comprises at least one amphiphilic air drying dendritic polymer, at least one non-amphiphilic air drying alkyd resin, at least one drier initiating and/or promoting autoxidation, and water, and optionally at least one anionic and/or nonionic surfactant, and/or at least one coalescent agent. Said at least one amphiphilic air drying dendritic polymer is built up from a polyhydric dendritic core polymer having terminal hydroxyl groups and at least one unsaturated carboxylic acid and at least one adduct, obtainable by addition of a monoalkylated polyethylene glycol to a dicarboxylic acid or anhydride and/or a diisocyanate, each bonded to at least one terminal hydroxyl group in said polyhydric dendritic core polymer.
Abstract:
The present invention is directed to a polyester resin for use in a coating composition. The polyester resin is the reaction product of a first compound comprising a plurality of hydroxyl groups, a lactone compound, a carboxylic acid anhydride, an epoxy compound having at least one epoxy group, and a carbamate compound. The present invention is also directed to a coating composition including the polyester resin and to a method of preparing the resin.
Abstract:
The present invention refers to a waterborne copolymer dispersion comprising at least one alkenyl functional dendritic polymer being copolymerised to the polymer backbone of at least one homo or copolymer obtainable by polymerisation, such as emulsion polymerisation, in an aqueous medium of at least one at least one polymerisable allyl, vinyl, maleic or diene monomer. Said dendritic polymer is built up from a dendritic core polymer and at least one alkenyl functional compound bonded to said core polymer. In a further aspect the present invention refers to the use of said copolymer dispersion.
Abstract:
Radiation curable compositions with a polymeric co-initiator are disclosed comprising a dendritic polymer core with at least one co-initiating functional group as an end group. The dendritic polymeric core is preferably a hyperbranched polymer. Industrial applications include varnishes, lacquers and printing inks. The polymeric co-initiator is especially useful in radiation curable inkjet ink.
Abstract:
The present invention provides a biodegradable, biocompatible polymer that is capable of forming particles (micelles), vesicles, surfaces and membranes, and other structures in which a biologically active agent, e.g. a drug, can be incorporated in such a way that its release to the host can be controlled to a high degree of accuracy, or in where surfaces of the formed polymers can be used to increase the hemeo compatibility of biomaterials. The present invention provides polymer compounds comprising at least one biodegradable polyester having a terminal functional group based on hydrophilic moieties from a phospholipid.