Process for continuously forming compartmented packages

Claim 2

A process for forming a series of compartmented packages comprising: a. continuously drawing a web of pliable film material into a convoluted cylindrical forming member having at least two tubular filling members passing therethrough, said film material being formed in said forming member into a convoluted tube into which said filling members extend and which has single-ply and double-ply wall portions, said web being drawn into, and said convoluted tube being continuously advanced through and past, said forming member by tube-advancing means in frictional engagement with said tube; b. bringing said continuously advancing convoluted tube into a confronting relationship with sealing means adapted to produce a seal between facing surface zones of the inner ply and the outer ply of the double-ply wall portion of said tube in a manner such as to form, as the tube advances, a continuous linear juncture between plies adjacent the outer edge of said web substantially parallel to the longitudinal axis of said tube, said inner ply dividing said tube into compartments, and each of said filling members extending into a different one of said compartments; c. continuously feeding a stream of fluent material into each of said filling members and discharging said material from said members into the compartments of said continuously advancing compartmented tube, the material fed into each filling member being different in composition from that fed into every other filling member; d. bringing the filled portion of said continuously advancing compartmented tube into periodic engagement with constricting and sealing means which constricts the tube at spaced intervals And applies a pair of successive encircling closure means to each constricted area; and e. severing said tube in the constricted areas between each pair of closure means.

Claim 3

A process of claim 1 wherein said tubeadvancing means engages said tube at a location between said sealing means and the discharge ends of said tubular filling members.

Claim 4

A process of claim 1 wherein the number of each of said compartments and tubular filling members is two.

Claim 5

A process of claim 1 wherein said inner ply is in frictional engagement with said outer ply adjacent the inner edge of said web.

Claim 6

A process of claim 1 wherein said pliable film material is a biaxially oriented polymeric linear terephthalate ester film, an agent which has at least an incipient solvent action on said film is applied to the surface of said web in a continuous stripe adjacent the outer edge of said web, and said sealing means applies heat to the outer surface of said tube in a zone which overlies said stripe.

Claim 7

A process of claim 5 wherein said agent is benzyl alcohol.

Claim 8

A process for forming a series of compartmented rock bolt resin packages from a web of a biaxially oriented polymeric linear terephthalate ester film comprising: a. applying to the surface of said web a continuous stripe of an agent which has at least an incipient solvent action on said film; b. continuously drawing said web into a convoluted cylindrical forming member having two tubular filling members passing therethrough, said film being formed in said forming member into a convoluted tube into which said filling members extend and which has single-ply and double-ply wall portions, said stripe of solvent being located in at least one of the mutually facing surfaces of the inner and outer plies of the double-ply wall portion of said tube, substantially parallel to the longitudinal axis of said tube, and adjacent the outer edge of said web, said web being drawn into, and said convoluted tube being continuously advanced through and past, said forming member by tube-advancing means in frictional engagement with said tube; c. bringing said continuously advancing convoluted tube into a confronting relationship with heating means adapted to apply heat to the outer surface of said tube in a zone which overlies said stripe in a manner such as to form a continuous linear juncture between plies at said zone, said inner ply dividing said tube into two adjacent compartments, one of said filling members being located in one of said compartments and one in the other; d. continuously feeding a stream of fluent material into each of said filling members and discharging said material from said members into the compartments of said continuously advancing compartmented tube, the material fed into one filling member comprising an ammbient-temperature-setting, polymerizable resin composition and that fed into the other comprising a composition which catalyzes the polymerization of said resin composition; e. bringing the filled portion of said continuously advancing compartmented tube into periodic engagement with constricting and sealing means which constricts the tube at spaced intervals and applies a pair of successive encircling closure means to each contricted area; and f. severing said tube in the constricted areas between each pair of closure means.

Claim 9

A process for forming a series of compartmented rock bolt resin packages from a web of a biaxially oriented polymeric linear terephthalate ester film comprising: a. applying to the surface of said web a continuous stripe of an agent which has at least an incipient solvent action on said film; b. continuously drawing said web into a convoluted cylindrical forming member having two tubular filling members passing therethrough, said film being formed in said forming member into a convoluted tube into which said filling members extend and which has single-ply and double-ply wall portions, said stripe of solvent being located in at least one of the mutually facing surfaces of the inner and outer plies of the double-ply wall portion of said tube, substantially parallel to the longitudinal axis of said tube, and adjacent the outer edge of said web, said web being drawn into, and said convoluted tube being continuously advanced through and past, said forming member by tube-advancing means in frictional engagement with said tube; c. bringing said continuously advancing convoluted tube into a confronting relationship with heating means adapted to apply heat to the outer surface of said tube in a zone which overlies said stripe in a manner such as to form a continuous linear juncture between plies at said zone, said inner ply dividing said tube into two adjacent compartments, one of said filling members being located in one of said compartments and one in the other; d. continuously feeding a stream of fluent material into each of said filling members and discharging said material from said members into the compartments of said continuously advancing compartmented tube, the material fed into one filling member comprising an ammbient-temperature-setting, polymerizable resin composition and that fed into the other comprising a composition which catalyzes the polymerization of said resin composition; e. bringing the filled portion of said continuously advancing compartmented tube into periodic engagement with constricting and sealing means which constricts the tube at spaced intervals and applies a pair of successive encircling closure means to each contricted area; and f. severing said tube in the constricted areas between each pair of closure means.