摘要:
The present invention relates to a method for preparing a biomass-based polymer emulsion. The method comprises: dissolving cardanol in a solvent a , adding a sulfonating agent and strong alkali, reacting and cooling, adjusting the pH value and reacting again, cooling overnight, filtering, dissolving a solid washed by the solvent a in an anhydrous solvent b, adding a modifier and triethylamine., and carrying out the polymerization reaction to obtain a cardanol-based emulsifier; after modifying castor oil by using maleic anhydride, adding isocyanate, a catalyst and a chain extender for polymerizing to obtain a castor oil-based polyurethane prepolymer; and adding an acrylate monomer and water into the castor oil-based polyurethane prepolymer and the cardanol-based emulsifier, swelling, rising the temperature to 70-90°C for reaction, and adding an initiator to initiate the polymerization. By using the present invention, acrylate is copolymerized in a system with a cardanol-based polymerizable emulsifier as a medium and double bonds on a castor oil derivative are used for graft copolymerization, so that a prepared emulsion is high in compatibility, good in stability, good in water tolerance, good in chemical tolerance and good in weather tolerance, has the advantages of incombustibility, no toxicity, no environmental pollution and the like, and is wide in use.
摘要:
The invention relates to silicone polymerisates produced by radical polymerisation of ethylenically non-saturated monomers in the presence of polysiloxane. The inventive polymerisates are characterised in polymerisation of a) 60-99.99 mass % one or several monomers of a group comprising vinyl esters of linear or branched alkylcarboxylic acids having 1-15 C atoms, alcohol methacrylates and acrylates having 1-15 C atoms, aromatic vinyl compounds, olefins, dienes and vinyl halides in the presence of b) 0.01-40 mass % at least one type of branched polysiloxane whose lipophilic siloxane part contains branched structures and whose hydrophilic polymer organic part can be linear or branched, the mass percentage values relate to the total mass of a) and b).
摘要:
Die Erfindung betrifft polymermodifizierte Harze aus einem hydroxyfunktionellen Polyester mit Dicidol in der Alkoholkomponente und hydroxyfunktionellem oder carbonsäuregruppenhaltigem Polyacrylat.
摘要:
A block copolymer having (meth)acryloyl groups in side chains, which copolymer is a ring-opening addition product of (meth)acryloyl-group-containing carboxylic acid to epoxy groups of a block copolymer obtained through epoxidation of double bonds derived from a conjugated diene compound contained in a base block copolymer formed of a polymer block of an aromatic vinyl compound and that of a conjugated diene compound; as well as adhesive compositions, sealant compositions, coating compositions, and sizing compositions.
摘要:
A method of bonding a component to glass comprising disposing a pressure-sensitive adhesive sheet material between said component and said glass so that said adhesive sheet material is adhered to said component and said glass, wherein said adhesive sheet material comprises the photopolymerization reaction product of starting materials comprising: (a) a monomeric mixture or partially prepolymerized syrup comprising at least one acrylic acid ester of an alkyl alcohol and at least one copolymerizable monomer; (b) an epoxy resin or a mixture of epoxy resins, (c) a heat-activatable hardener for the epoxy resin or mixture of epoxy resins, (d) a photoinitiator, and (e) a pigment.
摘要:
Wäßrige Dispersionen, die einen Celluloseether in zumindest teilweise gepfropfter Form und ein Copolymerisat mit einer Glasübergangstemperatur von -40 bis 0 °C enthalten, hergestellt durch Polymerisation von Vinylacetat, Ethylen, sowie Comonomeren aus der Gruppe Vinylester aliphatischer (C₃-C₁₈)-Carbonsäuren, Acrylsäureester, Methacrylsäureester und Maleinsäurediester aliphatischer (C₁-C₁₈)-Alkohole in Gegenwart von 0,05 bis 0,95 Gew.-% α,β-ungesättigten Carbonsäuren, 0 bis 0,95 Gew.-% Epoxy- oder Hydroxylgruppen tragenden Methacrylsäureestern oder Acrylsäureestern und 1,5 bis 20 Gew.-% Celluloseether, jeweils bezogen auf die Gesamtmenge der eingesetzten Monomeren, eignen sich als Klebstoffe insbesondere zum Verkleben von Polyolefinen.