Abstract: The present invention relates to a thermoplastic composition comprising at least one crystalline water sensitive polymer and at least one amorphous water sensitive polymer. The thermoplastic composition may optionally further comprise additional ingredients such as other polymers, tackifying resins, plasticizers, waxes, and mixtures thereof. The thermoplastic compositions are useful in a variety of applications wherein water or moisture sensitive thermoplastic materials are employed such as various packaging adhesive applications including case and carton sealing, remoistenable adhesives, repulpable/recyclable adhesives and multiwall bag applications. The present invention is also useful for moisture activatable reinforcement strings and opening tapes for corrugated containers, as well as for a variety of nonwoven applications such as body fluid impermeable barriers, core stabilization adhesives, and construction adhesives.

Abstract: This invention relates to water responsive thermoplastic compositions and articles constructed thereof. This invention particularly relates to thermoplastic copolyester compositions useful for the manufacture of disposable articles such as disposable diapers and feminine napkins. More particularly, this invention relates to thermoplastic copolyester compositions that are useful as a raw material in the manufacture of nonwovens, barrier films or coatings and as well as for various improved hot melt adhesives compositions useful for incorporating hydrophilic features into disposable articles.

Abstract: The present invention is a hot melt adhesive composition comprising at least one ingredient present in an encapsulated form. The encapsulated ingredient may be any known hot melt adhesive formulation ingredient as well as any hot melt adhesive additive such as antioxidants and fragrances for which there is a desirable change in adhesive properties by isolating such ingredient for a duration of time. The encapsulated ingredient is released from the shell by means of pressure, temperature, diffusion, pH, light, radiation, ultrasound, and combinations thereof. Hot melt adhesive compositions comprising at least one encapsulated ingredient are useful for a variety of novel products including self-supported friction glue sticks, non-tacky pelletized pressure sensitive adhesives, cohesive adhesive systems, hot melt adhesive compositions exhibiting improved thermal stability and odor, as well as for a variety of other adhesive applications.

Abstract: The present invention is directed to a method of packaging thermoplastic compositions. Preferably, the steps of the method may be employed in a continuous process. The method is especially suited for thermoplastic compositions such as pressure sensitive hot melt adhesives. The pressure sensitive thermoplastic composition may be packaged in an inclusion meltable film material wherein the film can be melted and blended with the hot melt adhesive during use, or alternatively, the composition may be contained in a drum. Alternatively the thermoplastic composition may be coated with a pelletizing aid.

Abstract: A hot melt adhesive for multipurpose bookbinding comprising a) from about 35% to about 40% by weight of a styrene-isoprene-styrene bloc copolymer; b) from about 25% to about 50% by weight of at least one compatible tackifying resin; c) from about 5% to about 30% by weight of a synthetic high melt point wax; d) from about 5% to about 30% by weight of a solid benzoate plasticizer; e) up to about 25% of a compatible wax; and f) up to about 15% of a compatible polymer.

Abstract: A method for the preparation of sulfonated polymer compositions wherein water dispersible isocyanate-terminated polyurethane prepolymers are reacted in the presence of aqueous polyvinyl dispersions which may contain active hydrogen atoms. The invention is further directed to a water-based sulfonated polyurethane polyvinyl hybrid latex wherein a sulfonated polyurethane is used as a seed for the polymerization of ethylenically unsaturated monomers and a method for preparing the same. The inventive compositions develop interpenetrating polymer networks or may form core-shell type structures, and are characterized as having enhanced mechanical and adhesion properties.

Abstract: Polysulfide corrosion inhibiting compositions used as adhesives and sealants for aircraft and military shelter industries are described as two-part compositions including a curing agent in the second part and a particular corrosion-inhibiting composition milled into the polysulfide in the first part where the corrosion inhibitors include a combination of a phosphosihicate with a mixture of alkali metal molybdate, ammonium benzoate, alkali metal nitrite, and benzotriazole.

Abstract: A removable grade hot melt pressure sensitive adhesive, comprising from about 10% to about 50% by weight of the adhesive of at least one styrene-isoprene-styrene block copolymer having a diblock content of greater than about 50% a melt index of less than about 30 grams/10 minutes; from about 10% to about 40% by weight of the adhesive of at least one tackifying resin having a softening point of less than about 120.degree. C. and from about 10% to about 50% by weight of the adhesive of a liquid plasticizer. The resultant adhesive has 180.degree. peel values to stainless steel of less than about 4.0 pounds per linear inch.

Abstract: This invention relates to a catalyzed reactive hot melt adhesive comprising a) a reactive polyurethane adhesive and b) from about 0.005% to about 0.04% by weight of a catalyst selected from the group consisting of 2,2-dimorpholinoethyl ether and di(2,6-dimethyl morpholinoethyl) ether.

Abstract: The present invention discloses a stable aqueous polyurethane dispersions comprising a reaction product of a water dispersible isocyanate-terminated polyurethane prepolymer (A), an aqueous polyurethane dispersion (B) and water, and a method wherein a water dispersible isocyanate-terminated polyurethane prepolymer (A) is dispersed in at least one aqueous polyurethane dispersion (B) and water, and reacted at about 35.degree. C. to about 95.degree. C. until substantially free of isocyanate. The inventive dispersions are useful in adhesives, coatings, binders, primers and sizers.

Abstract: The present invention relates to a foamable composition comprising a low viscosity thermoplastic composition comprising at least one ethylene/.alpha.-olefin. The foamable composition may comprise a single ethylene/.alpha.-olefin or a blend of such. Optionally, the foamable composition may further comprise at least one diluent including waxes, plasticizers such as oil, tackifying resin, and mixtures thereof. The present invention also relates to a method of foaming such compositions and articles constructed therefrom. More specifically, the present invention relates to foamable thermoplastic compositions having particular utility as cabinet sealant and as foam layers in disposable articles such as disposable diapers, incontinent devices, medical devices such as bandages and dressings, as well as a variety of other uses.

Abstract: A method of bookbinding comprising the steps of a) applying a film comprising at least one hot melt polyamide at an application temperature of between about 175.degree. C. and about 190.degree. C. to the backbone of a book block said film having a tensile strength greater than about 400 psi and a Young's modulus of less than about 12,000 psi and b) covering said book block having said film of polyamide with a book cover having a portion thereof in substantially parallel relation to said film.

Abstract: Polysulfide corrosion inhibiting compositions used as adhesives and sealants for aircraft and military shelter industries are described as two-part compositions including a curing agent in the second part and a particular corrosion-inhibiting composition milled into the polysulfide in the first part where the corrosion inhibitors include a combination of a phosphosilicate with a mixture of alkali metal molybdate, ammonium benzoate, alkali metal nitrite, and benzotriazole.

Abstract: The present invention discloses two-part isocyanate-based adhesive compositions, free of inorganic pigments and fillers, which cure to form polyurethane-based adhesives having an opaque-white appearance greater than about L* 80 and a shore A hardness greater than about 50. Such materials are particularly useful for the preparation of bonded filter. The invention further describes a method for the preparation of bonded filters using these compositions and the bonded filters thereof. Additionally, these compositions can also be used as two part general household adhesives and/or caulkings wherein the two liquid parts are metered together just prior to application using a dispensing apparatus including, but not limited to, glue guns having two containers (e.g., tubes); one tube, for example, containing polyol and diol components and the second containing polyisocyanate.

Abstract: The present invention relates to a flame retardant hot melt composition comprising from about 20% to about 60% by weight of the adhesive of at least one copolymer of ethylene, from about 10% to about 50% by weight of the adhesive of a flame retarding hydrated inorganic compound, from about 10% to about 30% by weight of at least one high melting point wax and from about 1% to about 10% by weight of at least one tackifying resin.

Abstract: A polymeric composition in pellet form comprising a tacky hot melt composition, comprising a) from about 5% by weight to about 90% by weight of a thermoplastic polymer, b) from about 0% by weight to about 65% by weight of a tackifying resin, c) from about 0% to about 50% by weight of a plasticizer, d) up to about 2% by weight of an antioxidant, and a pelletizing aid, wherein the tacky hot melt composition has some minimum amount of tackifier or plasticizer and is a pressure sensitive adhesive having a storage modulus, G', at about 25.degree. C., of less than about 5.times.10.sup.6 dynes/cm.sup.2, and each pellet has a substantially tack-free surface.This invention further discloses a polymeric composition in pellet form suitable for molding articles. The composition comprises a tacky hot melt composition comprising at least one high molecular weight triblock copolymer of the general configuration A-B-A and a plasticizer and a pelletizing aid.

Abstract: Hot melt adhesive compositions combining the characteristics of thermoplastic hot melt adhesives and reactive adhesives can be prepared by blending a polyester polyether thermoplastic elastomer having the formula ##STR1## wherein Nu is a predominately cyclic nucleus and R.sub.1 is randomly selected from either a C.sub.2-6 alkylene or an amorphous polyether subunit comprising a polyoxyalkylene group with a polyisocyanate prepolymer. The resulting composition is flexible and may be used as an adhesive or as a sealant.

Abstract: A hot melt useful for packaging comprising a) from about 10% to about 40% by weight of a block copolymer; b) up to about 20% of a compatible polymer wherein the total polymer content does not exceed 40% by weight; c) from about 25% to about 60% by weight of at least one tackifying resin; d) from about 5% to about 25% by weight of a compatible plasticizer; and e) from about 10% to about 40% by weight of at least one wax component wherein the viscosity of the hot melt adhesive is less than about 1500 cPs at about 150.degree. C.

Abstract: A hot melt useful for packaging, comprising from about 10% to about 30% by weight of at least one copolymer of ethylene and methyl acrylate (both acrylates and methacrylates); from about 10% to about 20% by weight of at least one copolymer of ethylene and n-butyl acrylate (both acrylates and methacrylates), wherein the total polymer content does not exceed 40% by weight, and the total ethylene n-butyl acrylate copolymer content does not exceed the total ethylene methyl acrylate copolymer content by percent weight in the adhesive; from about 20% to about 60% by weight of at least one tackifying resin selected from the group consisting of rosins and modified rosins and hydrogenated derivatives; aliphatic, cycloaliphatic and aromatic hydrocarbon resins and modified hydrocarbon resins and hydrogenated derivatives; terpenes and modified terpenes and hydrogenated derivatives; and mixtures thereof; from about 5% to about 30% by weight of at least one wax; and up to about 2% by weight of an antioxidant; wherein the r

Abstract: A hot melt adhesive composition comprising from about 5% to about 15% by weight of at least one radial styrene-isoprene-styrene block copolymer having the general configuration (pS--pI--pB).sub.n X wherein n is a number greater than 2, said block copolymer having a molecular weight from about 90,000 to about 380,000, and preferably from about 100,000 to about 250,000, and a styrene content from about 15% to about 35% by weight, and preferably from about 20% to about 30% by weight; up to about 10% of a compatible polymer, wherein the total polymer content does not exceed 15%; from about 30% to about 60% by weight of at least one compatible tackifying resin; from about 20% to about 40% by weight of at least one compatible plasticizer; and from about 0.1% to about 2% by weight stabilizer.