Sika Technology Ag

Dritte Patentportfolio Betelligungsgesellschaft Mbh & Co. Kg

Daniele Rutz

Barbara Jucker

Marcel Oertli

Urs Burckhardt

Steffen Kelch

Klaas Mennecke

Fabien Choffat

Ulrich Wolf

Berzad Durmic

Klaus-Uwe Koch

Sara Stauber-fedier

Ghazale Azarmgin

A moisture-curing composition including a) at least one moisture-reactive polymer P with a proportion of 10% to 60% by weight, based on overall composition, b) at least one inorganic filler F with a proportion of at least 9% by weight, based on overall composition, c) between 3% and 25% by weight, based on overall composition, of at least one type of microscopic hollow beads H, wherein composition has density of less than 1.20 kg/l, and microscopic hollow beads H have compressive strength, measured to ASTM D3102-72, of at least 2.5 MPa, and microscopic hollow beads H have a volume-based particle size D90, measured by Coulter counter, of less than 100 μm.

Curable composition of low density

The invention relates to a two-component composition, including a component A, which includes at least one silane-functional polymer and at least one hardener or accelerator for epoxy resins, and a component B, which includes at least one aqueous emulsion of at least one epoxy resin. Two-component compositions according to the invention are suitable as adhesives, sealants or coatings.

Two-component compositions based on silane-functional polymers

A silane-functional polyester of formula (I): wherein

Silane-functional polyesters in moisture-curing compositions based on silane-functional polymers

A composition including: i) at least one moisture-reactive silane-functional polymer which is liquid at room temperature; and ii) at least one silane-functional polyester of formula (I): 

Moisture-curing compostion with improved initial strength

Disclosed are anhydrous transparent dispersions of polyurethane(meth)acrylate particles in a reactive diluent, which can be obtained by reacting a polyisocyanate with at least one polyol and a nucleophilically functionalized (meth)acrylic acid ester in the reactive diluent. The inventive dispersions are characterized in that the polyurethane(meth)acrylate particles have an average diamert of less than 40 nm. The invention further relates to a method for producing such dispersions, the use thereof as an adhesive, cut glass, or impact resistance modifier, and a molded article made from said dispersion.

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Zurich, Switzerland

Daniele Rutz