Abstract: A method for preparing melt-blown microfibers comprising extruding fiber-forming material through the orifices of a die into a high-velocity gaseous stream where the extruded material is rapidly attenuated into fibers, directing the attenuated fibers into a first open end of a tubular chamber disposed near the die and extending in a direction parallel to the path of the attenuated fibers as they leave the die, introducing air into the tubular chamber at a velocity sufficient to maintain the fibers under tension during travel through the chamber, and collecting the fibers after they leave the tubular chamber.

Abstract: A composite adhesive fastening tape and tape system for interconnecting printed surfaces, which includes a transparent main film portion with an embossed surface defined logo or symbol or the like and coated on one surface with an adhesive, in the tape system is included a target film portion, which target film portion is optionally decorated by colored numbers, letters, patterns, shapes or figures.

Abstract: A polyethylene-containing foam-backed absorbent article having an adhesive patch comprised of 25 to 50 parts of an A-B block copolymer and 25-50 parts of solid tackifying resin and liquid resin and/or plasticizing oil. The adhesive not exhibiting any adhesive transfer when removed from a cotton fabric after one hour at 100.degree. F. and 0.25 P.S.I.

Abstract: Disposable diapers can be manufactured at high production speeds by using for the waistband a heat-shrinkable plastic film that is dimensionally stable at ordinary room temperatures and shrinks in one direction at least 25% within 5 seconds at 54.degree. C. Such a heat-shrinkable plastic film can be made by uniaxially cold-stretching a thin extrudate of a blend of an EVA copolymer and an (A-B) block copolymer of polystyrene and polyisoprene.

Abstract: Pavement-marking sheet materials of increased durability comprise a tough, abrasion-resistant top layer, preferably a polyurethane film having substantial flexibility but including trifunctional hydroxyl-terminated components of short molecular weight so as to obtain a significant degree of crosslinking, and a conformable underlying layer. A preferred underlying layer comprises unvulcanized elastomer precursor.

Abstract: A bag and liner, wherein the bag is maintained open by an attached elastic band. Preferably, the elastic is placed on either side of at least one gusset fold(s) in an untensioned state, so as to bridge the gusset. When the bag top is folded over a container rim, the elastic is stretched on the outside of the container. This placement permits the bag to be folded flat while providing a means to keep the bag open during use. The elastic is useful as a closure after use.

Abstract: There is provided an adhesive closure tab with release surfaces adjacent adhesive surfaces by coating a continuous region of a tape backing with a soluble low adhesion backsize composition, drying, then solvent zone coating an adhesive on at least one strip of said tape backing previously coated with the low adhesion backsize thereby slightly dissolving said backsize so as to promote adherence of said adhesive to said backsize.

Abstract: There is provided an improved two-point diaper closure system comprised of inner mechanical and outer adhesive fastening means. The outer adhesive fastening means is used in conjuction with a release treated foraminous tab located on the diaper top sheet.

Abstract: In encapsulated-lens reflective sheeting of the prior art, a monolayer of glass microspheres is embedded in a binder layer, a specularly reflective layer underlies the microspheres, and a cover film encapsulates the microspheres, within a plurality of hermetically sealed cells. In the invention, a HMW thermoplastic binder film, affords improved structural intregity, greater toughness, and better conformability to irregular surfaces without cracking. The cover film preferably is of the same polymer family as said binder film.

Abstract: A polyolefin BMF web made from a mixture of polypropylene and surfactant can have high wet strength when a) the surfactant is nonionic and b) the surfactant is mixed with the polypropylene at a static mixer that interconnects the extruder and the BMF die. By so postponing the addition of the surfactant, it is protected from both the exceedingly high temperatures of the extruder and from the high shearing forces within the extruder. The surfactant also is heated to high temperatures for a much shorter time than if it were premixed with the polypropylene.

Abstract: Disposable diapers can be manufactured at high production speeds by using for the waistband a heat-shrinkable plastic film that is dimensionally stable at ordinary room temperature and shrinks in one direction at least 25% within 5 seconds at 54.degree. C. Such a heat-shrinkable plastic film can be made by uniaxially cold-stretching a thin extrudate of a blend of an EVA copolymer and an (A-B) block copolymer of polystyrene and polyisoprene.

Abstract: A light source substantially longer than its diameter exhibits two different optical characteristics, such as two different colors, depending upon the direction along the long axis from which it is viewed. The light source comprises a light conduit employing total internal reflection and two illumination sources directing light into the light conduit from opposite ends.

Abstract: A gussetted plastic bag and liner, wherein the bag is maintained open by an attached elastic band. The elastic is placed on either side of at least one gusset fold(s) in an untensioned state, so as to bridge the gusset. When the bag top is folded over a container rim, the elastic is stretched on the outside of the container. This placement permits the bag to be folded flat while providing a means to keep the bag open during use. The elastic is useful as a closure after use.

Abstract: In the continuous manufacture of disposable diapers wherein target strips applied to the diaper are cut from a pressure-sensitive adhesive tape that has a low-adhesion backsize coating, better adhesion of adhesive closure tabs to the target strips is obtained after physically abrading the low-adhesion backsize coating. A preferred abrading medium is a low density open nonwoven fibrous abrasive web.

Abstract: A disposable diaper can be fastened securely around a person and be refastenable when it has an adhesive patch on the faces of corners at the back of the diaper, each of which patches contacts an adhesive patch on the front of the diaper, which patches form bonds to each other that have strong resistance to shear forces, can easily be peeled apart after 2 hours at room temperature and do not adhere either to ordinary packaging materials or to nonadhesive surfaces of the diaper. All of the adhesive patches can be cut from a single adhesive tape that has a flexible backing, one face of which bears a layer of the peelable adhesive while the other layer bears a layer of an adhesive that forms a strong, permanent bond to the diaper.

Abstract: A diaper, adhesive fastening tab which exhibits good peel, quick-stick, shear strength and aging when used with a diaper outer film, either with or without a low adhesion backside. The adhesive used with the fastening tab is based on a composition comprising a slightly aromatic containing aliphatic oil, a styrene/isoprene block copolymer and a solid C.sub.5 tackifying resin.

Abstract: There is provided an adhesive closure tab with release surfaces adjacent adhesive surfaces by coating a continuous region of a tape backing with a soluble low adhesion backsize composition, drying, then solvent zone coating an adhesive on at least one strip of said tape backing previously coated with the low adhesion backsize thereby slightly dissolving said backsize so as to promote adherence of said adhesive to said backsize.

Abstract: Oriented microfibers and processes for making them are disclosed, together with blends of such microfibers with other fibers such as crimped staple fibers and non-oriented microfibers.

Abstract: A disposable diaper can be almost completely degradable when each of its diaper closure tapes has as its backing a polyolefin film containing a chemical prodegradant such as a metal salt together with an unsaturated elastomer such as a block copolymer of styrene and isoprene of butadiene. Preferably, the polyolefin of each of those backings is a copolymer of polypropylene and polyethylene or a blend of crystalline isotatic polypropylene and a compatible ethylene-based polymer.

Abstract: Disposable adherent collars based on low cost supple sheets carrying a low-adherency pressure sensitive adhesive are disclosed. The adherent collars of the present invention are significantly more comfortable to wear than prior art adherent collars due to the suppleness of the sheet used in the collars, and to the low-adherency character of the PSA, achieved preferably through the use of a discontinuous layer of PSA material. Because of the suppleness of the sheet the low-adherency adhesive is effective to hold the sheet in place.