Abstract:
The present invention relates to a curing agent for moisture-curing compositions which includes at least one aqueous emulsion of at least one epoxy resin. Curing agents according to the invention are especially used for the accelerated curing of moisture-curing compositions which are based on polyurethane polymers that have isocyanate groups or of silane-functional polymers.
Abstract:
The present invention is directed to polyamides that are crosslinkable in the presence of water having desirable properties including long open time, good adhesion and cold flexibility. Notably, the polyamides of the present invention are suitable for structural and semi-structural bonding applications utilizing a hot melt process, roll coater or bead extrusion process.
Abstract:
A curable composition includes an organic polymer containing a reactive silicon group (A), and a bound substance of kaolinite and quartz (B) at a proportion of 30-200 parts by weight relative to 100 parts by weight of the organic polymer containing a reactive silicon group (A).
Abstract:
The present invention provides a curable composition containing an organic polymer having a crosslinkable silicon group, the composition having sufficient usable life and having adhesive properties with respect to an adherend (substrate) that are equivalent to those of the case where aminosilane is included. The composition comprises: (A) a crosslinkable silicon group-containing organic polymer; and (B) a crosslinkable silicon group-containing compound that forms, by means of light, at least one type of amino group selected from the group consisting of primary amino groups and secondary amino groups. The crosslinkable silicon group-containing organic polymer (A) is preferably at least one type selected from the group consisting of crosslinkable silicon group-containing polyoxyalkylene polymers and crosslinkable silicon group-containing (meth)acrylic-based polymers.
Abstract:
The present invention provides curable compositions comprising non-tin metal accelerators that accelerate the condensation curing of moisture-curable silicones/non-silicones. In particular, the present invention provides an accelerator comprising amino acid compounds that are suitable as replacements for organotin in sealant and RTV formulations.
Abstract:
A method and kit for forming a seal around a roof penetration is disclosed. The method comprises dispensing a one-part moisture curable sealant into pitch pan formed around a roof penetration. The one-part moisture curable sealant contains a polymer having non-terminal silane groups. The incorporation of non-terminal silane groups can provide for a greater number of crosslinking points than terminal silane groups. The non-terminal silane groups can be placed at specific points along the polymer backbone and the number of crosslinking points, or concentration of crosslinking units, can be controlled. Generally, as the crosslinking points can be provided along the polymer chain, the number of crosslinking points is increased, especially as compared to polymers only having terminal silane groups. Increasing the number of crosslinking points can result in improved elasticity and cure-through as compared with silyl-terminated polymers, in addition to other advantages.
Abstract:
The present invention relates to an one-component adhesive composition, comprising a moisture cross-linking silyl modified polymer and an organoclay-based rheology controller being an alkyl ammonium salt modified mineral clay mixture. The present invention relates moreover to a two-component adhesive composition, comprising a first component A) comprising a moisture cross-linking polymer and an organoclay-based rheology controller; and a second water-based component B) that is reactive with component A) upon mixing thereof. The present invention moreover relates to a method of production of said adhesive composition.
Abstract:
The invention relates to the use of an adhesive composition to provide a bonding in a wet environment. The invention also relates to a method for providing a bonding in a wet environment.
Abstract:
Moisture-curing adhesives simultaneously having high tensile strength and elongation are prepared by admixing a silane-terminated polyurethane or polyether polymer having a defined and limited molecular weight, finely divided silica, and an organosilicon compound containing basic nitrogen.
Abstract:
A moisture-curable resin composition comprising (a) a moisture-curable polymer having at least one hydrolysable silyl group; (b) a reactive modifier; (c) a catalyst for catalyzing the reaction between the moisture-curable polymer (a) and reactive modifier (b) under curing conditions; and optionally, the composition can contain one or more conventional components, including pigments, fillers, curing catalysts, dyes, plasticizers, thickeners, coupling agents, extenders, volatile organic solvents, wetting a agents, tackifiers, crosslinking agents, thermoplastic polymers, ultraviolet stabilizers, and combination thereof. The moisture-curable resin composition is useful in the production of adhesives including hot melt adhesives, primers, sealants and coatings.