Abstract: A primer composition for adhering a topcoat to a flexible plastic substrate includes a blend of acrylic and urethane resins, and pigments dispersed in a water based solvent system. About 10 to about 20 percent of the resins are polyurethene by weight, the balance of the resins consisting essentially of acrylic polymers. The composition consists of from about 15 to 30 percent resins, and from about 20 to about 35 percent pigments by weight, and has a total solids content of from about 35 to about 70 percent. The water based solvent system is primarily water, but contains water-miscible organic components which provide for rapid drying, and good coalescing and film forming properties, while minimizing volatile organic content. The compositions dry rapidly at ambient conditions upon application to flexible plastic substrates to provide a continuous, flexible film which exhibits excellent adhesion with the substrate and with subsequently applied topcoats.

Abstract: A fast-curing sealant composition is made from generally liquid oligomers and has good tensile strength, one hundred percent modulus, Shore-A Hardness, and good insensitivity to water. One part of the sealant composition is generally a polyester or polyether oligomer having acetoacetate end groups or functionalities thereon, whereas the second part is also generally a polyester of polyether oligomer generally containing primary amine end groups or functions. The oligomers are generally of a low molecular weight, as from about 500 to about 10,000, and are modified by compounding with various additives such as carbon black, antioxidants, ultraviolet light inhibitors, and the like. Polyfunctional acetoacetate-terminated molecules having 3 or more functional end groups or polyfunctional primary amine-terminated molecules having 3 or more functional end groups serve to increase the crosslink density and modulus of the compositions. The sealant can be used as a coating or as a caulking type compound.

Abstract: An organoclay in which a quaternary long chain fatty amine is ionically bonded to clay platelets is found to function both as a filler or thickener as well as a compatibilizer in an asphaltic polyurethane (PUR) dispersion. When a PUR prepolymer is mixed into a homogenized blend of asphalt and organoclay under high shear, a phase inversion occurs the result of which is that a microdispersion of asphalt particles (preferably 1 .mu.m-44 .mu.m) becomes the dispersed phase which is uniformly scattered throughout the PUR prepolymer (the continuous phase). This dispersion is found to be an excellent adhesive, particularly for roofing components which can be secured without using conventional fasteners, and it is stable and moisture-curable to afford, when cured, an elastomer having excellent adhesion to surfaces exposed outdoors. It is also user-friendly because it is solvent-free. The asphalt is treated to react all functional groups it may have because they may react with a functional group of the PUR prepolymer.

Abstract: An aqueous primer composition for facilitating and promoting good adhesion across an interface between a nonporous substrate and a polymeric coating composition contains from about 0.05 to about 0.3 parts by weight of an amimopropylsilane or a mercaptopropylsilane per 100 parts by weight of water and, optionally to facilitate adhesion under wet conditions, up to about 0.4 parts by weight of a hydrophobic silane per 100 parts by weight of water and aminopropylsilane or mercaptopropylsilane. The primer composition is nontoxic, nonflammable and free or substantially free of any environmentally undesirable volatile organic components. In accordance with a preferred aspect of the invention, the primer composition includes an effective amount of a conventional surfactant sufficient to uniformly wet the surface of the substrate to enable uniform dispersion of the silane coupling agent over the surface. The primer composition is also preferably adjusted to a pH of from about 2.0 to about 5.

Abstract: Emulsions of asphaltic materials, such as asphalt or asphalt blends with polymers, in water using copolymeric anionic emulsifiers are disclosed. The copolymeric anionic emulsifiers use ionizable carboxyl groups as their hydrophilic moiety. The emulsions using these copolymeric emulsifiers are stable, allowing them to be used anywhere where asphalt or modified asphalt is used as a sealant, coating, or binder. These emulsions can also be mixed with polymer latices, pigments, fibers, fillers and other additives to impart particular properties specific to the type of application, i.e., pigmented flexible coating compositions, non-sag sealer and sealant compositions, water borne adhesive compositions, etc., for use in construction and industrial fields. These asphalt emulsions have better freeze-thaw stability, higher solids contents, and wider applicability to polymer modified asphalt compositions than prior art emulsions.

Abstract: A moisture-curable, substantially solvent-free and anhydrous blend of a bituminous material such as asphalt and a liquid prepolymer is disclosed, which blend when cured, results in an elastomer having excellent adhesion to surfaces exposed outdoors. The stability of the blend derives from asphalt being microdispersed in a dispersed phase within a continuous phase of the liquid prepolymer so that particles of asphalt are in the size range from 0.5 .mu.m to 100 .mu.m. The asphalt is treated to react all functional groups it may have because they may react with a functional group of the liquid prepolymer. The prepolymer is a polyurethane, a terpolymer of ethylene-propylene-diene, or a silicone. The microdispersion is stably maintained by a compatibilizer having opposed substantially polar and non-polar terminal portions, present in an amount in the range from 0.01 to 5 parts per 100 parts of the blend. The compatibilizer is chosen from (A) an ester of a C.sub.2 -C.sub.

Abstract: A dispenser for simultaneously dispensing and mixing a pair of fluid products such as chemically reactive resins, from a pair of axial adjacent front and rear chambers. A piston is mounted within each of the chambers and is moveable with respect to the hollow interior of the respective chamber for dispensing the fluid product therefrom. Telescopic movement of the rear chamber within the front chamber moves the pistons synchronously through the chambers to provide for controlled discharge of the products through a front discharge nozzle. A fixed hollow delivery tube extends through the interior of the front chamber and telescopically receives therein a post which is mounted on a rear wall of the rear chamber. The rear chamber has a relatively tight sliding fit within the front chamber so that a partial vacuum is formed within an annular space which forms between the two pistons as they move apart upon discharge of the two products to produce a "suck back" effect on product remaining in the discharge nozzle.

Abstract: An expansion joint system (10) traverses a slot (12) between concrete slabs (14, 16). The system includes nosings (32, 34) overlying an expansible member (40) of unitary construction and made from resilient material. The expansible member has ribbed flaps (42, 44) with holes (48) therethrough. The flaps are attached to the slabs by a layer (46) of adhesive bedding material. The expansible member includes a first segment (69), a second segment (82) and a third segment (96). The segments each include pad portions (70, 84, 98), and web portions (78, 92, 102) extending downward from the pad portions into the slot. The adjacent web portions are joined at locations (106, 112) vertically below the pad portions of the segments.

Abstract: The present invention is directed to a deformable window strip used to separate and seal two panes of glass. More specifically, the deformable window strip of the present invention comprises a flow resistent polymeric matrix which substantially decreases the need for rheological modifiers.

Abstract: An apparatus (10) for applying fluid roof panel adhesive to a substrate includes a holding tank (12) for holding a supply of adhesive vertically above the substrate. The tank is supported by a pair of spaced wheels (14) and has a handle (16) to enable moving the device over the substrate. Openings (32) in a lower wall (30) of the tank enable adhesive to flow onto the substrate. Blocking members (36) associated with each opening are movable in response to the position of a lever (20) to enable or prevent flow of adhesive through the openings. Movement of the apparatus over the substrate provides for controlled deposition of uniformly spaced beads of adhesive suitable for holding roof panels to the substrate.

Abstract: The present invention relates to low slope roofing systems, particularly in commercial (as opposed to residential) roofing applications. More specifically, the fastener-free roofing system of the present invention is directed to the use of a curing adhesive composition which will simply and safely secure roofing insulation to a roofing deck without the need for mechanical fasteners.

Abstract: The present invention relates generally to window glazing systems, particularly for high-rise commercial buildings. More specifically, the gasket system of the present invention is directed to a gasket system which can be partially fabricated in pieces off site, then the pieces are heat bonded together on site to thereby provide a substantially unitary gasket construction which is capable of sealing around the perimeter of multiple windows of a commercial building.

Abstract: Command-cure compositions especially for use in insulated window assemblies permit the composition to be rendered adhesively bonding at a selected time interval after formation of the assembly to firmly bond opposed surfaces of the assembly; a particular adhesive in strip or tape form comprises an adhesive polymer composition which is transparent to curing radiation especially UV, and curable in the presence of the radiation; the curing is inhibited by oxygen; the composition is solvent free and cures to a mass resistant to water; surfaces of the adhesive exposed to oxygen remain tacky and uncured; the adhesive is especially useful in window structures in which adhesion of the tacky surface excludes the cure-inhibiting oxygen and the tacky surface can be cured by UV radiation passing through the window glass.

Abstract: Fogging and discoloration of multi-pane windows is prevented by sealing the windows with a polymeric seal and by sorbing off-gases evolved by the seal through the use of diatomaceous earth. The diatomaceous earth can be disposed within the volume defined by the panes and the seal, preferably by being disposed within a hollow spacer, or the diatomaceous earth can be mixed with the seal itself. If the diatomaceous earth is mixed with the seal, it can constitute about 1-15 percent by volume of the seal, preferably 1-2 percent by volume. Diatomaceous earth has been found to be especially effective in preventing fogging and discoloration of low emissivity glass.

Abstract: The present invention is directed to a one part, sealant composition preferably comprising a free isocyanate functionalized polyacrylate. The unblocked isocyanate is surprisingly stable even in the presence of a blocked amine curing agent. Upon exposure to ambient conditions, the blocked amine will react with ambient humidity to provide an amine which in turn will react with the polyacrylate isocyanate, thereby curing the sealant and providing exceptional sealant properties. The most preferred blocked amine curative is a ketimine.

Abstract: An applicator tool for use in applying an insulating strip on the surface of a window pane used in the assembly of multi-pane windows. The applicator tool includes a directing roller which directs the insulating strip onto the glass while maintaining only rolling contact with the surface of the glass. The directing roller is removable, is capable of adjustment in the vertical direction, and is capable of adjustment to vary the distance from the edge of the glass the insulating strip is placed. The applicator further includes two guiding rollers which maintain rolling contact with the edge of the glass. Transport rollers may be used on the applicator tool when insulating strip is applied to glass located on a flat surface. The tool also includes a rectangular block for use in molding the insulating strip around a corner.

Abstract: The disclosure herein describes an apparatus for laying an adhesive strip along the peripheral edges of a glass sheet positioned on a work table with a view to forming a double-glazed insulated glass panel. The apparatus comprises a handle with a housing mounted at one end thereof and includes therein a series of rollers for positioning and laying the adhesive strip on the glass sheet. A third roller, whose axis is perpendicular to the axis of each of the strip-laying rollers, applies pressure to the strip being laid.

Abstract: A waterproofing sheet material useful for example as a free floating membrane or flashing material in roofing applications, a pond liner, or a gasketing material, composed of from about 15 wt. % to about 80 wt. % of an ingredient selected from the group consisting of:(a) homopolymers of alkadienes and substituted alkadienes(b) addition copolymers of alkadienes with unsaturated monomers(c) homopolymers of alkenes and substituted alkenes selected from the group consisting of polyethylene, chlorosulfonated polyethylene and polyisobutylene(d) resin acids and resin acid derivatives(e) highly aromatic bituminous materials, and(f) pine oiland from about 85 wt. % to about 20 wt. % of a plasticized polyvinyl butyral resin. Minor amounts of fatty acids and paraffin wax may be added to improve low temperature properties and to facilitate processing a hot melt admixture of the ingredients into a sheet.

Abstract: A waterproofing sheet material useful for example as a free floating membrane or flashing material in roofing applications, a pond liner, or a gasketing material, composed of from about 15 wt. % to about 80 wt. % of an ingredient selected from the group consisting of:(a) homopolymers of alkadienes and substituted alkadienes(b) addition copolymers of alkadienes with unsaturated monomers(c) homopolymers of alkenes and substituted alkenes selected from the group consisting of polyethylene, chlorosulfonated polyethylene and polyisobutylene(d) resin acids and resin acid derivatives(e) highly aromatic bituminous materials, and(f) pine oiland from about 85 wt. % to about 20 wt. % of a plasticized polyvinyl butyral resin. Minor amounts of fatty acids and paraffin wax may be added to improve low temperature properties and to facilitate processing a hot melt admixture of the ingredients into a sheet.

Abstract: The disclosure herein describes an apparatus for laying an adhesive strip along the peripheral edges of a glass sheet positioned on a work table with a view to forming a double-glazed insulated glass panel. The apparatus comprises a handle with a housing mounted at one end thereof and includes therein a series of rollers for positioning and laying the adhesive strip on the glass sheet. A third roller, whose axis is perpendicular to the axis of each of the strip-laying rollers, applies pressure to the strip being laid.