摘要:
The invention relates to a method for producing bicyclic or tricyclic (meth)acrylates by reacting (meth)acrylic acid with a bicyclic or tricyclic hydrocarbon that contains at least one double bond by using montmorillonite as a catalyst.
摘要:
The present invention relates to a novel (meth)acrylic reaction resin, which hardens with little or no odour. More particularly, the present invention relates to reaction resins containing reactive (meth)acrylic monomers from the group of polar cyclically substituted esters of (meth)acrylic acid that boil at high temperatures, more particularly from glycerinacetal-, -ketal- or -carbonate- methacrylates. These novel components are used as a substitute for MMA, which constitutes the main part of the odour in the existing reaction resin systems according to the prior art. These novel components enable the production of resin formulations that have similar glass transition temperatures and comparable characteristics to MMA-based resins. The novel reaction resins may also have faster hardening times than MMA-based systems from the prior art. According to the invention, the term reaction resins is understood to mean reactive monomer mixtures or mixtures of monomers and polymers which, used as a 2K system, can easily be hardened.
摘要:
The invention relates to a coating composition suitable for the coating of a pharmaceutical or nutraceutical dosage form, comprising a core comprising one or more pharmaceutical or nutraceutical active ingredients, wherein the coating composition is comprising at least 20% by weight of an enteric core/shell polymer composition derived from an emulsion polymerization process, wherein either the core of the core/shell polymer composition is formed by a water-insoluble, not cross-linked polymer or copolymer and the shell of the core/shell polymer composition is formed by an anionic polymer or copolymer or vice versa.
摘要:
The invention relates to a composition, in particular in the form of a 2-component system comprising (meth)acrylated polyether polyols and/or polyester polyols and/or (meth)acrylated hydroxy-functionalised triglycerides, which has an adjustable pot life, in particular for cable sealing compounds.