Abstract: A tubular casing for foodstuffs, in particular sausages, comprising a web (4) which is curved along its longitudinal axis and having its longitudinal edge regions (1, 2) bonded by a glued seam. The edge regions (1, 2) meet or overlap and are bonded with a strip of film (6). A pressure-sensitive adhesive is used for the bonding. The tubular casing carries an adhesion-promoting layer (5) on the surface adjacent to the adhesive layer (3). Preferably, the strip of film and the edge regions of the web are comprised of a smoke-permeable material, and optionally the pressure-sensitive adhesive layers also have a smoke-permeable structure, such as perforations. The tubular casing can also be shirred.

Abstract: Disclosed is a tubular casing consisting of a cellulose web or of a fiber-reinforced cellulose web, which is curved to form a tube and the longitudinal edge regions of which are bonded by an adhesive. On the inside and/or outside of the tubular casing, there is optionally a smoke-permeable adhesion-promoting layer, in particular a layer of a heat-cured cationic resin. The smoke-permeable adhesive layer contains a condensation product, cured at room temperature, of a polyamide-polyamine, an aliphatic polyamine or a polyamide with bifunctional halohydrins or derivatives thereof, such as epichlorohydrin. Optionally, the tubular casing is shirred, preferably with helical displacement of the seam zone. Also disclosed are processes for manufacturing the tubular casing and for using it as a packaging wrap for foodstuffs, in particular as an artificial sausage casing which can be smoked.

Abstract: A composite pressure sensitive adhesive construction contains a central release liner, a layer of an adhesive on each side thereof, and an exterior release liner on at least one of the adhesive layers. The central release liner and the exterior release liner contain release coatings on surfaces thereof which contact the adhesive layer. The composite construction may be made up in the form of a roll for easy dispensing or in the form of a precut tape. The pressure sensitive adhesive construction is generally useful for making any type of sealing connection wherein an initial releasable connection is desired. For example, the pressure sensitive adhesive construction may be utilized in sealing pipe insulating jackets wherein the exterior release liners are removed and the adhesive construction is applied to the opposite longitudinal ends or sides of the insulating jacket cover.

Abstract: A wrap-around closure assembly for elongate objects such as pipelines including a length of heat recoverable material as the closure member and a fastening device extending lengthwise along the elongate object for holding the edges of the material in a nearly abutting relationship. The fastening device has channels which receive the edges of the heat recoverable material such that the retaining forces of the fastening device are in line with the tensile forces of the recovered closure member. Retaining means within the channels prevent the withdrawal of the edges during assembly and after heat recovery of the closure member. The legs of the channels are also forced against the interposed closure member to prevent extraction thereof.

Abstract: An article of protecting high pressure hydraulic lines, fuel lines and the like is disclosed. The article includes a silicone polymer coated and impregnated glass fiber woven sheet. The sheet is self-coiling and normally assumes the configuration of a coiled, generally cylindrical sleeve. The woven glass fiber sheet is cut along a full bias so as to increase the flexibility of the normally coiled sheet when installed on the line to permit the sleeve and protected line to assume curved configurations without buckling or separation of the sleeve. The sheet is uncoiled and snapped around the high pressure line and a high temperature silicone adhesive seals an elongated, longitudinal seam defined by the overlap of the lateral edges of the sheet.

Abstract: This invention is a novel method for fabricating leak-tight tubular articles which have an interior flow channel whose contour must conform very closely with design specifications but which are composed of metal which tends to warp if welded.The method comprises designing two longitudinal half-sections of the article, the half-sections being contoured internally to cooperatively form the desired flow passageway. Each half-section is designed with a pair of opposed side flanges extending between the end flanges and integral therewith. The half-sections are positioned with their various flanges in confronting relation and with elongated metal gaskets extending between the confronting flanges for the length of the array. The gaskets are a deformable metal which is fusion-weldable to the end flanges. The mating side flanges are joined mechanically to deform the gaskets and provide a longitudinally sealed assembly.

Abstract: A conventional fin-type seam formed on tubed bag forming sheet material provided on one face with heat sealable material, has heat sealed overlapping edge portions forming the seam. The fin slides over a back-up plate extending between it and the body of the tube to prevent scuffing of the heat sealable material with consequent seal failure. A tracking wheel engaging the fin presses it against the back-up plate, and maintains alignment.

Abstract: The raw metal edge on the inside lap in an adhesively-bonded lap side seam of a tubular body is protected from chemical attack by a corrosive substance from within the tubular body by applying a side seam adhesive along one marginal edge portion of the body blank, bending the other parallel marginal edge portion of the blank to form a crease thereon, rolling the blank into tubular form to place the adhesively-coated marginal edge portion and the creased marginal edge portion in an overlapping, facing position, and imbedding the creased marginal edge portion into a portion of the adhesive on the one marginal edge portion to bury the raw metal edge, the imbedding being achieved by compressing the overlapped marginal edge portions together to assemble the lap side seam of the tubular body.

Abstract: A method is described for joining the opposite edge portions of a sheet of flexible material to form a durably-joined elongated tubular member. The material is shaped or folded to provide opposite edge flaps, spaced and extending outwardly from the tubular member formed. A strip of connector tape, folded lengthwise to form a pair of leg flaps, is interposed between the edge flaps with its legs confronting and extending oppositely thereto. Each leg flap is bonded to its corresponding adjacent edge flaps, whereby the tape serves to connect the edge flaps and form a longitudinal joint within the elongated tubular member. The tubular member so produced may include an insulating layer and a flexible skeletal structure therewithin.

Abstract: The pipe insulation includes two semi-cylindrical pieces of insulating material secured by adhesive in a controlled pattern to an outer jacket or cover having a longitudinally extending overlapping flap. One strip of adhesive material with self-sealing adhesive on both sides is adhesively secured on one side to the inner side of the flap and another strip of adhesive material with self-sealing adhesive on both sides is adhesively secured on one side to the portion of the cover overlapped by the flap. The other side of each strip of adhesive material is provided with a protective paper covering during shipment and storage. When the pipe insulation is installed, the paper coverings are peeled off and the two strips of self-sealing adhesive material are pressed together.

Abstract: A convolutely wound tube having portions adjacent the inside and outside edges thereof more pliable than the remainder thereof for easily conforming to the contour of the inside and outside surfaces thereof and method for making same from a predetermined length of elongate sheet material having opposed first and second surfaces and first and second longitudinal side edges, wherein the method includes mechanically deforming a minor portion of the sheet material adjacent the first or second longitudinal edge, or both, thereof to render same more pliable than the major portion of the sheet material, convolutely winding a predetermined length of the elongate sheet material transversely of the length into a convolute tube while forming the inside edge of the tube from the first longitudinal edge and the outside edge of the tube from the second longitudinal edge of the sheet material so that the pliable portion of the sheet material adjacent the inside and outside edges will readily conform to the contour of the in