Abstract: This invention relates to a non-contact coating method for producing a continuous coating and articles constructed therefrom. This invention further relates to a method for producing a textile material with a moisture-impermeable barrier layer and to a method for producing a moisture-absorbing article of hygiene which has such a barrier layer. This invention particularly relates to a textile material and hygienic disposable articles comprising a body fluid impermeable barrier layer produced from said coating method. Preferably, the thermoplastic composition used in the method for producing the barrier layer exhibits certain rheological characteristics.

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 invention relates to a foamable two-component material based on polyurethane, which can be used, for example, to produce freely foamed seals on a surface or in a groove. Furthermore, the invention relates to specific individual components of this material as well as to objects made of such a material.An essential aspect of the inventive solution is the feature of forming a two-component material of the type in question, such that one component (A) is a polymer which essentially has only two hydroxyl groups per molecule, and the other component (B) is an isocyanate component which likewise is essentially bi-functional. Customary other additives can be provided as necessary.

Abstract: The invention refers to an aqueous dispersion for the production of an at least two-component polyurethane-modified dispersion adhesive especially suited for the lamination of fabrics, foil and such materials onto carrier materials. The dispersion contains at least one hydroxyl-group containing polymer compound to react with a dispersible hardener to be added to the dispersion, the hardener itself containing a di- or polyfunctional isocyanate compound. The dispersion contains either a (co) polymer compound derived of ethylene vinylacetate (EVA) in addition to a (co)polymer compound derived of (meth) acrylic acid (derivative) or one of these two (co)polymer compounds besides one plasticizer.

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 inventive compositions develop interpenetrating polymer networks, which may form core-shell type structures, and are characterized as having enhanced mechanical and adhesion properties.

Abstract: An intumescent based thermal barrier system which comprises a silicate solution, an expandable microsphere intumescent agent and a frit material. The compositions of this invention can be applied to appropriate substrates to provide fire resistance.

Abstract: Hot-melt adhesive compositions useful for packaging are disclosed. These hot-melt adhesive compositions are based on modified polyethylene and contain a linear, low density copolymer or terpolymer of ethylene and another alpha-olefin, a polyethylene graft copolymer, a tackifying resin, and a high-melting low viscosity wax. The hot-melt adhesive compositions disclosed herein produce very good adhesive bonds, even at high speed packaging conditions under a broad range of ambient packaging temperatures. These inventive adhesive compositions have a novel combination of good hot tack and good adhesive bond properties, even at extreme conditions.

Abstract: A hot melt adhesive composition can be made using a polyester derived from 2-propanoic acid (lactic acid). A thermoplastic resin grade polyester can be formulated into a functional adhesive using adhesive components. A lower molecular weight material can be used as a tackifying resin with a biodegradable/compostable resin in a formulated hot melt adhesive. The adhesive material can be made pressure sensitive and can be made entirely by a degradable by combining the polyester polymer with other biodegradable/compostable ingredients. The resulting adhesive composition that can be used in a variety of applications. The biodegradable/compostable adhesive material can be used as a substitute for non-biodegradable materials made from commercial polymers that resist attack by bacteria, fungi and other microbial populations. The hot melt adhesives can be used in (e.g.) packaging and the manufacture of disposable articles which are made from degradable materials.

Abstract: A high heat resistant hot melt adhesive composition, its method of manufacture and its use on plastic and metallized foil containers, structures and the like is described herein, which adhesive contains a blend of an amorphous polyalphaolefin polymer, a solid benzoate plasticizer and a hydrocarbon tackifier where the elevated peel value of the resulting adhesive composition is greater than 160.degree. F.

Abstract: A hot melt pressure sensitive adhesive comprising a) from about 15% to about 30% by weight of a linear styrene-ethylene/butylene-styrene copolymer having a styrene content from about 15% to about 35% by weight and a coupling efficiency of less than about 75%; b) from about 20% to about 50% by weight of a tackifying resin selected from the group consisting of those tackifying resins having a softening point of less than about 100.degree. C.; c) from about 30% to about 50% by weight of a plasticizing oil; and d) up to about 15% of a compatible polymer wherein the total polymer content does not exceed 30% by weight of the adhesive wherein the hot melt pressure sensitive adhesive fails cohesively during use.

Abstract: A process of continuously packaging a thermoplastic composition such as a pressure sensitive hot melt adhesive. The method includes the steps of (a) forming a thermoplastic film to a rigid mold wherein said film becomes molten at or below the usage temperature of a hot melt adhesive composition, and the mold is in contact with ambient air; (b) dispensing hot melt adhesive into the lined mold; (c) disposing a thermoplastic film on the surface of the mold to form a packaged hot melt adhesive; (d) allowing the hot melt adhesive to reach a state in the presence of ambient air such that the packaged hot melt adhesive is removable from the mold.

Abstract: Melamine-formaldehyde based adhesive compositions having enhanced bond strengths when subjected to thermal and mechanical stresses. The invention further describes a process wherein melamine-formaldehyde resins are reacted with amines in the presence of water-based sulfonated polyurethane-urea polymers. The process substantially reduces the release of formaldehyde and generates a network of interpenetrating polymers having enhanced peel adhesion failure temperatures.

Abstract: Sulfonated polyester polyols and mixtures of sulfonated polyester polyols and hydroxy carboxylic acids are used to prepare improved aqueous anionic poly(urethane/urea) dispersions with a high crystallization rate, low heat activation temperature, high green strength, stability at low pH, which show good compatibility with other water based polymers and with crosslinkers. The aqueous anionic poly(urethane/urea) dispersions have high heat resistance after curing or blending with a crosslinker.

Abstract: An improved hot melt, pressure sensitive adhesive. The adhesive has a unique combination of excellent heat stability and higher tack. The adhesive is utilized in disposable articles such as diapers and sanitary napkins. The adhesive employs a saturated A-B-A block copolymer such as S-EB-S or S-EP-S with B or C side chains such as isoprene or ethylene-propylene.

Abstract: A hot melt adhesive composition can be made using a polyester derived from 2-propanoic acid (lactic acid). A thermoplastic resin grade polyester can be formulated into a functional adhesive using adhesive components. A lower molecular weight material can be used as a tackifying resin with a biodegradable/compostable resin in a formulated hot melt adhesive. The adhesive material can be made pressure sensitive and can be made entirely by a degradable by combining the polyester polymer with other biodegradable/compostable ingredients. The resulting adhesive composition that can be used in a variety of applications. The biodegradable/compostable adhesive material can be used as a substitute for non-biodegradable materials made from commercial polymers that resist attack by bacteria, fungi and other microbial populations. The hot melt adhesives can be used in (e.g.) packaging and the manufacture of disposable articles which are made from degradable materials.

Abstract: The present invention discloses a method for the preparation of heat-resistant protective coatings wherein powder-based compositions are cured at temperatures greater than about 205.degree. C. to form high-film-build coatings which are substantially free of coating defects.

Abstract: This invention relates to hot melt adhesive compositions useful for waterproofing stitched seams and a method of using the same. This invention particularly relates to certain hot melt adhesives which can be directly applied to a stitched seam such that the resulting seam is resistant to water penetration.

Abstract: A method of packaging thermoplastic hot melt adhesive compositions in a continuous process. The process is especially suited for hot melt pressure sensitive adhesives to provide convenient handling of such. The process includes the steps of: dispensing a thermoplastic composition into a hollow sleeve of thermoplastic film, wherein said film is submerged in a heat sink bath; sealing the molten thermoplastic composition filled composition; allowing the molten thermoplastic composition to cool and solidify while submerged in the heat sink bath.

Abstract: This invention relates to a nonwoven web comprising a water soluble polyamide and articles constructed therefrom. The water soluble polyamide may be used alone or in combination with conventional thermoplastic web forming materials such as water insoluble polyethylene, polypropylene, polyester and polyamide. The water soluble polyamide may also be combined with biodegradable or selectively dispersible material to form nonwoven webs having various combinations of properties. Such water soluble webs have utility in the manufacture of disposable absorbent articles such as disposable diapers, feminine napkins, incontinent products and cellulosic articles such as tissues and towels, as well as for water soluble heat fusible webs for the textile industry.

Abstract: A process for producing a high quality silicone foam by free foaming, in which a two-component addition crosslinking system is used, comprised of a component A which contains a silicone polymer having at least two double bonds per molecule, preferably vinyl groups, a complexed organo-platinum for example with butanol, fumed silica, and water, as well as further additives, if appropriate, and a component B which contains a silicone polymer having at least two double bonds per molecule, preferably vinyl groups, fumed silica, and polydimethyl hydrogen siloxane as SiH crosslinking; agent. The two components A and B are mixed, and the reaction mixture is subsequently pressurized, preferably using compressed air or nitrogen, in a storage vessel over several hours so that the gas is present in the mixture in a dissolved form.