Abstract: The present invention is a polyurethane prepolymer comprising the reaction product of: A) a polyisocyanate; B) one or more compounds or polymers having isocyanate-reactive moieties; C) a dispersion triol containing from about 10 to about 60 percent by weight based on the dispersion of particles of an organic polymer which is nonreactive with the polyols and polyisocyanates having a particle size of from about 5 to about 50 microns; wherein the prepolymer has a free isocyanate content of from about 0.8 to about 2.2 percent. In another embodiment the invention is a one-part adhesive composition comprising the polyurethane prepolymer of the invention and a catalyst capable of catalyzing the reaction of isocyanate moieties with water.

Abstract: A minimum visibility seam tape and method of joining at least two substrates with the tape. The substrates joined typically are sign faces or awnings comprising a composite of thermoplastics and a woven scrim. The seam tape is a woven or nonwoven scrim embedded in or coated with a thermoplastic polymer.

Abstract: A corn-based mixed diet comprises rumen-protected lysine, rumen-protected methionine and an appetizer preferred by the dairy cows, which makes it possible to obtain a stable and high milk production from dairy cows. A method for stably producing a high yield of milk comprises the step of feeding to dairy cows in the course of the lactation period (1) a corn-based mixed diet containing rumen-protected lysine, rumen-protected methionine, an appetizer preferred by the dairy cows and a corn-based diet or (2) rumen-protected lysine, rumen-protected methionine and a corn-based diet, an appetizer being contained in one member selected from the group consisting of the rumen-protected lysine, rumen-protected methionine and corn-based diet.

Abstract: A nondisassembling partition assembly comprising a partition matrix made up of intersecting first and second slotted plastic partitions, each of the partitions having at least one slot. The slots of the partitions are engaged with each other at a plurality of intersections. The matrix is held together in a nondisassembling relationship by at least one parent weld formed by heating an edge of the partitions at one or more intersections with one or more heat sources until the intersecting partitions become molten, removing the heat source or sources from edge of the intersecting partitions and allowing the partitions to cool. The parent welds formed by this process permanently secure the partitions together in the nondisassembling relationship without the use of any material other than the partitions themselves.

Abstract: There is disclosed a method for accelerating the cure of cyanoacrylate adhesive by contacting the adhesive with a coating of an accelerator on a tape or sheet. Preferred embodiments relate to bonding a fabric to a substrate by placing a fabric in pressure contact with a substrate, said fabric having cyanoacrylate adhesive on one side thereof and openings of sufficient size between adjacent fibers to permit cyanoacrylate adhesive to pass through to the opposite side of the fabric and then contacting adhesive on the side away from the substrate with a polymerization accelerator coated on a backing. There is also disclosed a backing material such as a tape or sheet having a polymerization accelerator for cyanoacrylate adhesive coated on one side thereof, preferably, wherein the backing material does not bond to the cyanoacrylate on the side carrying the coating. Use of the method and backing material is particularly described for use in the manufacture of serigraphic screens.

Abstract: A linerless double-backed adhesive tape structure is disclosed. In one embodiment the tape has three tape strips each with an adhesive coated surface and an adhesive free surface. Two of the strips are joined to a center strip along its lateral edges with the adhesive coated surfaces of the two strips overlapping and adhered to the adhesive coated surface of the center strip. Also disclosed is a method of unitizing and sealing a plurality of containers. In one embodiment a double-backed adhesive tape structure is adhered to each of the containers and the containers are stacked together with the exposed adhesive side of the tape on each container adhered to the exposed adhesive side of the tape on an adjacent container. Finally, an apparatus for dispensing the double-backed adhesive tape of the present invention is disclosed.

Abstract: Aqueous dispersions containing a polyurethane which contains less than 0.6% by weight, based on the polyurethane, of urea groups ##STR1## are used as adhesives.

Abstract: A multi-cycle refastenable contact responsive non-tacky fastener system and method of use with a field of a contact responsive fastening layer having essentially no surface tack. The fastening layer is multiply releasable and refastenable against a non-tacky target surface, and has substantially constant 90.degree. peel strength of less than about 5 kN/m when in contact with the target surface. A mounting layer comprises a field of a pressure sensitive adhesive onto which the field of the contact responsive layer is directly attached.

Abstract: The combination of reduced flammability and adhesion can be imparted to cured organosiloxane materials when the curable compositions used to prepare these materials contain 1) an adhesion promoting composition comprising up to about 0.1 weight percent, based on the weight of the curable composition, of a chelated organoaluminum compound in combination with an organic epoxide compound and an alkoxysilane or condensation product of the silane, and 2) as a flame-retarding additive, hydrated aluminum oxide and/or magnesium hydroxide, preferably in combination with additional fillers such as quartz.

Abstract: A substance delivery system has a three dimensional structure with outermost surface features and spaces for containing a substance. The substance has a level below the outermost surface features such that the substance is protected from inadvertent contact with external surfaces. The substance remains protected until the three dimensional structure is sufficiently deformed into a substantially two dimensional structure and the substance is thereby exposed to contact an external surface without compliance of the external surface being necessary. Deforming is preferably achieved by a compression force, wherein the outermost surface features of the three dimensional structure deform in a direction of the compression force.

Abstract: A method for producing cast-in-place flexible joined-together constructional structures and buildings comprises applying to precleaned mating surfaces of the constructional structures and buildings involved a thiokol-containing compound incorporating the following components, wt %.______________________________________ liquid thiokol 80-120 inorganic pigment 20-45 vulcanizer of aerobic rubber hardening 6.5-10.0 adhesive additive 5.5-7.5 rubber hardener 0.05-0.15 cross-linking agent 2.6-4.1 modifier 0.3-0.4 coal tar 14.5-31.2, ______________________________________followed by filling a space confined between the mating surfaces with a mortar based on a cement having a maximum expansion ratio of 0.3%. Then the joined-together constructional structures or buildings are held for a period of time long enough for vulcanization of the thiokol-containing compound and cement hardening so as to impart elastomonolithic properties to the joined-together constructional structures or buildings involved.

Abstract: The invention provides a new feed product, especially a fish feed product in the form of pellets or particles, with high fat content and superior physical properties. The product is made by immersing feed pellets in a first hot oil bath with a temperature higher than 100.degree. C. to secure drying of and simultaneous fat absorbtion. This treatment is followed by a cooling in a warm oil bath kept at a temperature of 40.degree.-60.degree. C. This completes the fat absorbtion and results in a dry product consisting of hard and smooth particles with high fat content, which are free flowing and do not agglomerate.

Abstract: A photosensitive resin film is pressed onto the surface 1 of nozzle plate 1, with one portion entering the inside of nozzle, then by ultraviolet radiation directed from the rear surface of nozzle plate the intruded portion is hardened as plug, at the same time the portion of photosensitive resin film directly above nozzle being hardened by the ultraviolet radiation to form an extensive portion, of a size at least that of nozzle diameter, being no larger than 1.4 times that of nozzle diameter; finally, using the shape of extensive portion, an ink-repellent eutectoid plating coating layer is applied to the whole surface of nozzle plate with the exception of the edge of nozzle, forming on that surface, a water-repellent surface that does not cause deviation in the flight of ink droplets, while restricting the lining of the inside of nozzle with the coating layer.

Abstract: The present invention relates to a bond enhancement process for promoting strong, stable adhesive bonds between surfaces of copper foil and adjacent resin impregnated substrates or superimposed metallic sublayers. According to the process of the invention, a black oxide-coated copper surface is treated with an aqueous reducing solution containing sodium metabisulfite and sodium sulfide to convert the black oxide coating to a roughened metallic copper coating. The roughened metallic copper-coated surface is then passivated and laminated to a resin impregnated substrate. The bond enhancement process is especially useful in multilayer printed circuit fabrication and in the treatment of copper circuit lines and areas which are disconnected from each other, that is, which do not have electrically conductive continuity.

Abstract: Disclosed is a method of producing polysaccharide foams and foams produced by the method. The polysaccharide foams are formed from a wet condition and are convection dried with a flow of warm or hot air. Such foams exhibit improvements over foams dried under ambient conditions. The present invention also discloses the formation of multi-ply foam layers. At least two sheets of foam layers are layered together and laminated either mechanically or chemically to produce a composite structure.

Abstract: In one embodiment this invention provides a process for preparing a deodorized fatty acid salt feed supplement. Primary amine reagent is added to a process medium in which C.sub.14 -C.sub.22 fatty acid with a content of malodorous carbonyl compound is converted into a deodorized C.sub.14 -C.sub.22 fatty acid alkaline earth metal salt product.

Abstract: A low VOC cleaner/primer for EPDM and butyl roofing and waterproofing membranes. Highly volatile solvents are replaced with a carefully chosen petroleum oil and a blend of hydrocarbon resin and partially cross-linked halo-butyl rubber. The cleaner/primer contains halo-butyl rubber, a high softening point resin tackifier, a low viscosity, high volatility petroleum oil and a curing agent. When applied to a dust covered membrane the cleaner/primer effectively displaces dust and leaves behind a primer film which is conducive to adhesive bonding by either splicing tape or solvent based adhesive. When applied in a thin coating to metal surfaces the cleaner/primer effectively primes the metal to enhance the adhesion of butyl rubber based splicing tape or solvent based butyl adhesives.

Abstract: A vehicle body panel having a honeycomb sandwich structure in which a honeycomb core is sandwiched between a first and a second plate includes a subhoneycomb panel formed by adhering the first plate to one major surface of the honeycomb core beforehand. The subhoneycomb panel is pressed against the second plate which is constituted by a part of a structural panel of a vehicle body with the intermediary of an adhesive layer, the other major surface of the honeycomb core being adhered to the second plate. The connection of the subhoneycomb panel to the second plate is performed after the structural panel has been connected to a strength member of the vehicle body, e. g. after a washing stage. Such a vehicle body panel with a honeycomb sandwich structure is achievable without resorting to any substantial modification of an existing vehicle body assembly line.

Abstract: An adhesive film comprising (a) a liquid epoxy resin, (b) a solid resin having one or more functional groups, (c) a microcapsule type curing agent, and if necessary (d) a coupling agent, is effective for connecting semiconductor chips and wiring boards under heat and pressure.

Abstract: A primer for the promotion of bonding of a first plastic substrate to a second plastic substrate, which plastic substrates may either be made of a plastics material which conventionally is difficult to bond or of a plastics material which conventionally is not difficult to bond, with an adhesive such as a cyanoacrylate, consists of a compound of the formula I: ##STR1## wherein --(CH.sub.2).sub.n -- is a straight or branched chain alkyl group of 1 to 6 carbon atoms inclusive; p, q, r and s are each independently 1 to 6 inclusive; and each R is independently --CH.sub.3 or --OH.