Provided is an underlay cushioning sheet that is arranged on the surface of a foundation and that has a waterproof coating film formed thereon. The underlay cushioning sheet is provided with a cushioning layer having an overlay surface and a curing acceleration layer having a coating film formation surface on the opposite side from the overlay surface. A waterproof coating film comprising a polyurethane resin is formed on the coating film formation surface of the curing acceleration layer by applying a one pack-type liquid waterproofing material. The curing acceleration layer comprises a reactive material that is capable of reacting with the liquid waterproofing material. The reactive material either (1) comprises a functional group that is capable of reacting with an isocyanate included in the liquid waterproofing material or (2) reacts with a latent curing agent included in the liquid waterproofing material and generates a functional group that is capable of reacting with the components of the liquid waterproofing material.
E04D 5/10 - Roof covering by making use of flexible material, e.g. supplied in roll form by making use of compounded or laminated materials, e.g. metal foils or plastic films coated with bitumen
This repairing-material injecting device is equipped with a check valve provided within a tubular part integrally formed by using a single material. The tubular part has a rear end provided with an attachment seat to be attached to an object to be repaired and a front end provided with a pump connection section. The check valve includes a valve seat provided at the inner periphery of the tubular part, a ball serving as a valve body, and an elastically-deformable stopper that regulates the moving distance of the ball. The inner periphery of the tubular part has an inlet surface extending toward the valve seat, and the front end of the inlet surface is provided with a stopper support section that supports the stopper. The stopper includes a ball receiving section, a plurality of engagement sections engaged with the stopper support section, and a converting mechanism that converts a force with which the ball receiving section is pressed by the ball into a force that causes the diameter of the engagement sections to increase.
Provided is a method for slope improvement comprising layering a life-extending layer (3) on the surface of a protective layer (2) made from mortar or concrete sprayed onto a slope (1a) in order to prevent rain water or the like from entering cracks in the protective layer (2), inhibit degradation of the protective layer (2), and prevent mortar pieces or concrete pieces from spalling off the protective layer (2), said method for slope improvement being characterized in that the life-extending layer (3) is formed by a coating layer that has a crack conformability of 0.8 mm or larger and has salt-blocking properties and neutralization-preventing properties.
The objective of the present invention is to provide a urethane composition that is for a coating film waterproof material, does not contain any of specific chemical substances, has the same work efficiency as a general-purpose highly extensible urethane coating film waterproof material, has the elongation rate of a highly extensible urethane coating film waterproof material, has the strength of a high-strength urethane coating film waterproof material, has no decrease in weather resistance in a top coat resulting from a plasticizer, and is suitable for a non-bleeding type of coating by hand that is not affected by the migration of a low fraction of asphalt. The present invention provides a urethane composition for a coating film waterproof material characterized by containing at least: a primary material (A) resulting from mixing an isophorone diisocyanate prepolymer generated by reacting isophorone diisocyanate and a short-chain polyvalent alcohol, and a polypropylene glycol having at least 1,500 hydroxyl group equivalents containing at least two hydroxyl groups; and a curing material (B) containing diethyltoluenediamine, water, a polypropylene glycol having at least 1,500 hydroxyl group equivalents containing at least two hydroxyl groups, and a terminal esterified polyfunctional polyether or a polyoxyalkylene monoalkyl ether acetate ester-based plasticizer.
The objective of the present invention is to provide an asphalt-urethane composition that does not contain any of specific chemical substances, has adhesiveness to an asphalt groundwork and mineral surfaced asphalt roofing, exhibits performance in temporary waterproofing with respect to an asphalt groundwork, causes an adjustment of irregularity and adhesion to sand in the surface layer of the mineral surfaced asphalt roofing, has adhesion properties of integrating with a urethane waterproof layer applied thereupon, has superior workability, construction efficiency, water resistance, and warm water resistance, has high strength and elasticity, has low temperature sensitivity, and has favorable finish properties. The present invention provides an asphalt-urethane composition characterized by containing at least: a component (A) resulting from adding a solvent (a), an MDI monomer, and an MDI prepolymer generated by reacting an MDI monomer and a short-chain polyvalent alcohol, and a polyolefin polyol having at least two hydroxyl groups; and a component (B) containing asphalt, a catalyst, and a solvent (b).
A method for achieving a water-proofing practice for a floor slab, comprising a step of adhering an object to be laid for adhesion purposes onto a urethane-type water-proofing material layer to laminate a paving adhesive agent layer, a step of applying or spraying a compound containing an isocyanate group onto the paving adhesive agent layer, and a step of paving an asphalt mixture on the upper surface of the paving adhesive agent layer, wherein the object to be laid for adhesion purposes is produced by molding a synthetic resin containing active hydrogen.
The disclosed interlaminar bonding agent is interposed as an interlaminar bonding layer between a waterproof layer, which consists of a resin coating, and an inorganic material layer, which uses mortar or concrete, and binds the layers to each other. The interlaminar bonding layer contains a resin compound that is obtained by reacting (a) a base compound consisting of a base resin emulsion that consists of at least one of an acrylic resin, an ethylene vinyl acetate resin or an epoxy resin with (b) an isocyanate compound that has an isocyanate group.
C09J 133/00 - Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereofAdhesives based on derivatives of such polymers
C09J 5/00 - Adhesive processes in generalAdhesive processes not provided for elsewhere, e.g. relating to primers
E02D 29/00 - Underground or underwater structuresRetaining walls
E02D 31/02 - Protective arrangements for foundations or foundation structuresGround foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
E04D 11/00 - Roof covering, as far as not restricted to features covered by only one of groups Roof covering in ways not provided for by groups
8.
MONO-COMPONENT POLYURETHANE RESIN COMPOUND TO PREVENT PEELING OF CONCRETE SHEETS AND TILE AND PEELING PREVENTION METHOD FOR CONCRETE SHEETS AND TILES USING SAME
Provided is a mono-component polyurethane resin compound to prevent peeling of concrete sheets and tiles and a peeling prevention method for concrete sheets and tiles using said compound. The disclosed compound: can be applied with a trowel or a brush and is superior for coating operations; forms a clear resin coat after reactive curing of the coating; can form, without a top coat, a high strength resin coating that has superior weather resistance; allows easy degradation diagnosis of concrete in concrete structures by visual inspection; can maintain the existing facade of buildings with a tile finish on exterior walls; and does not splash the surrounding area when applied. Also provided are a method for forming, on a concrete sheet or the surface of a wall to which tiles have been attached, a reinforcing layer that includes the mono-component polyurethane resin compound to prevent peeling of concrete sheets and tiling, which includes a urethane polymer with an isocyanate base (A) and a thixotropic agent (B), and a resin coat formed from said resin.
E01D 22/00 - Methods or apparatus for repairing or strengthening existing bridges
E04F 13/18 - Coverings or linings, e.g. for walls or ceilings composed of covering or lining elementsSub-structures thereforFastening means therefor composed of a plurality of similar covering or lining elements of organic plastics with or without reinforcements or filling materials
E04G 23/00 - Working measures on existing buildings
9.
WATER-STOP AGENT FOR WATER-IMPERVIOUS SHEET AND METHOD FOR REPAIRING WATER-IMPERVIOUS SHEET
Provided is a water-stop agent for use in repairing damaged portions of a water-impervious sheet laid on the ground. The water-stop agent is a urethane-type water-stop agent obtained by mixing a chief agent that contains an isocyanate component with a curing agent that comprises both a castor oil-modified polyester polyol and a plasticizer component.
A spray gun is provided with a nozzle section for mixing gas into a material liquid and spraying the material liquid. The inner space of the nozzle section has an introduction path through which the material liquid is introduced, an open section which has a flow path expanded to a size greater than that of the introduction path and which sprays the material liquid in a fine particle-like form, a reduced-diameter section which has a flow path contracted to a size smaller than that of the open section and which re-collects the fine particle-like material liquid, and a spray opening section which sprays the material liquid to the outside. The nozzle section has formed therein a gas introduction hole for introducing gas to a base end side portion of the open section.
B05B 7/04 - Spray pistolsApparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
B05D 7/00 - Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
A coating material for hand application, which comprises a urethane resin composition obtained by reacting a base material (A) with a curing agent (B). The base material (A) comprises both an isocyanate-terminated prepolymer (b) and free diphenylmethane diisocyanate (c), said isocyanate-terminated prepolymer (b) being a polyol component (a) which contains a long-chain polyol component (e) that either consists of or contains a long-chain polyol having three or more hydroxyl groups and that has a molecular weight of 200 or more and which is terminated by diphenylmethane diisocyanate. The curing agent (B) comprises both a crosslinking agent (g) that consists of a short-chain polyol (f) having a molecular weight of less than 200, and a long-chain polyol (h) having a molecular weight of 200 or above.
A coating composition which is excellent in crack resistance, alkali resistance and solvent resistance while having a high hardness and which is excellent in recoatability, anti-graffiti property, and removability of graffiti is provided. The coating composition according to the present invention comprises as the essential components, (a) a liquid organosiloxane compound which is a mixture of (a-1) a liquid organosiloxane compound having an alkoxy group content of 20 to 60% by mass and (a-2) a liquid organosiloxane compound having an alkoxy group content of 5% by mass or more and less than 20% by mass, in which an (a-1)/(a-2) mass ratio is 10/90 to 60/40, (b) an organometallic catalyst, (c) at least one compound selected from among alkoxy group-containing organosilane compounds having a primary or secondary amino group, amino-modified silicone oils, and amino group-containing organosiloxane compounds, and (d) at least one compound selected from among compounds having two or more glycidyl groups in one molecule, glycidyl group-containing silane compounds and glycidyl group-containing silicone oligomers.
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