A sealing agent is filled into gaps between adjacent groups of electric wires and gaps between the groups of the electric wires and an inner peripheral surface of a grommet. The sealing agent is of a two-liquid reactive hardening type and includes a main agent and a hardening agent, the main agent containing a viscosity depressant mixed with hardening accelerators at a predetermined ratio. The sealing agent has a viscosity of 200 cps-500 cps in a grommet-to-wire assembly environment and gels in three to seven minutes. The mixing weight ratio between the main agent and the hardening agent of the sealing agent is set to a range of 5.5:1-1:1. The main agent includes polyether polyol, triethanolamine and dibutyltin dilaurate both used as the hardening accelerators, a low-molecular weight aromatic hydrocarbon used as a viscosity depressant, and an anti-oxidant. The hardening agent includes polyisocyanate.

A water-vapor permeable, waterproof coated fabric having a fibrous base fabric, and a porous film coated on one side of the base fabric. The porous film comprises a synthetic polymer composed mainly of a polyurethane resin and inorganic fine particles having a mean particle diameter of not more than 0.1 .mu.m. In the porous film, microcells intercommunicate in the thicknesswise direction of the film to form a honeycomb skin core structure having a diameter of 1 to 20 .mu.m. The porous film has a multiplicity of micropores having a diameter of not more than 1 .mu.m. The coated fabric has waterproof and water-vapor permeability characteristics sufficient to meet such performance characteristics required in various applications, such as rainwears, military garments, and sportswears.

An improved method for the production of a laminated product of porous materials, which comprises applying a two-part aqueous adhesive comprising (A) a main composition comprising a water-soluble urethane prepolymer and a polyurethane rubber, and (B) a curing composition comprising water and optionally a conventional curing agent, to the surface of at least one of materials to be adhered, wherein at least one of the materials to be adhered is a porous material, and piling up the materials and then pressing. Said two-part aqueous adhesive has excellent adhesion, particularly initial adhesion, and hence can give the desired laminated products by pressing the piled materials for a very short period of time, and the laminated products have excellent feeling and handling and are useful as a material for seats in automobiles, offices, etc., carpets, cushions, and the like.

Disclosed is an improved aqueous latex adhesive composition of the type having an aqueous latex in admixture with a water dispersible multi-isocyanate cross-linking agent and a thickener. The improvement for a room temperature curable adhesive composition having improved water resistance comprises the curable ingredients consisting essentially of an aqueous hydroxyl functional latex which contains hydroxyl groups as its only isocyanate reactive functionality and the multi-isocyanate cross-linking agent. The cross-linking agent is a water dispersible or water dispersed multi-isocyanate and preferably is a multi-isocyanate which has undergone partial reaction of some of its isocyanate groups with a hydrophobic monohydroxy alcohol. Desirably, fillers incorporated into the adhesive composition are formed into a filler grind prior to incorporation into the adhesive composition. The adhesive composition is especially useful as a structural adhesive in structural lamination manufacture.

Water-swellable elastomer composition consisting essentially of a homogeneous mixture of an elastomer, a water-absorbent resin and a water-soluble resin. Said composition exhibits a high degree of swelling and a high swelling rate when it is soaked in water. Also, said composition retains swellability even when it is put in contact with water for a long period of time.