Abstract: A dual cap lining for bi-directional venting comprising a substantially round, disc-shaped, laminated, fluid-impermeable, gas-permeablematerial bottom layer, and having an extruded and cast polyethylene material top layer which is provided with apertures which communicate with the bottom layer and also communicate with channels provided on the upper surface of the top layer, and the material of construction of the laminated bottom layer is gas-permeable such that the dual lining allows bi-directional gas flow therethrough, for gases which have built-up in the interior of the connected container to safely escape by venting from the interior of the container to the external ambient atmosphere through openings existing between the spiral screw threads of the cap closure and threads of the container neck, and the reverse venting to equilibrate for relatively increased external pressure, without passage of solid or liquid material from the interior of the container through the lining to the closure and to the exte

Abstract: The method for controlling a blowmolding machine during a process of making an object is disclosed. The machine includes a die head, a mandrel and an extruder that rotates and drives a plastic material between the mandrel and the die head to form a plurality of elongated parisons. The method comprises setting the distance between the die head and the mandrel and the rotation speed of the extruder to accomplish predetermined target values of the weight of the object and parison velocity. Plastic material is fed to the machine and the extruder is operated to form the parisons. A parameter related to the viscosity or melt index of the plastic material in the extruder is detected and the material distribution function and the speed of the extruder are adjusted in response to the parameter so that object weight and velocity of the parisons made are maintained substantially at target values.

Abstract: A dual cap lining for bi-directional venting comprising a substantially shaped, laminated or secured, fluid-impermeable, gas-permeable material bottom layer congruent with a container opening, and having an extruded and cast polyethylene material top layer which is provided with channels on the lower surface of the top layer, and the material of construction of the laminated bottom layer is gas-permeable such that the dual lining allows bi-directional gas flow therethrough, for gases which have built-up in the interior of the connected container to safely escape by venting from the interior of the container to the external ambient atmosphere through openings existing between the spiral screw threads of the cap closure and threads of the container neck, and the reverse venting to equilibrate for relatively increased external pressure, without passage of solid or liquid material from the interior of the container through the lining to the closure and to the exterior of the container.

Abstract: This invention relates to a storage and shipping system comprising corrugated containers which house plastic vessels or bottles used to hold fragranced liquid bleaches in which the shipping and storage containers are stacked on top of one another. In the stacks, in all of the shipping and storage containers except for the topmost one, the plastic vessels will share some of the vertical component of the compression load caused by the shipping and storage container directly located above a given shipping and storage container. In a further embodiment of the invention, the problem of surface wetting of blown polyethylene bottles by certain additives in liquid bleach is recognized and addressed. In another embodiment of the invention is provided a stable fragranced bleaching composition. In a still further embodiment of this invention is provided a homogeneous fragrance preblend and a method of making thereof.

Abstract: This invention provides a stable, fragranced liquid hypochlorite bleach composition in which an immiscible or slightly miscible fragrance is stably dispersed in the bleach substantially without wetting the interior walls of the plastic container for the bleach. This lack of wetting is caused by using as a dispersant for the fragrance, a hydrotrope which does not wet the plastic but stably suspends the fragrance in the bleach.

Abstract: A dispensing package is provided that includes a liquid container and a drainback spout fitment fitted within a dispensing opening in a finish at the upper end thereof. A measuring cup is threadedly engageable with the fitment and finish to enable closing off of the container. The fitment includes a frustoconical downwardly depending side wall surrounding and spaced from the spout. A drainback channel between the spout and side wall drains back drips to a drain opening and thence into the liquid container. An interlock and centering means is provided between the finish and fitment to center the fitment with respect to the finish to assist the sealing system in preventing leaks as well as to prevent rotation of the fitment when the cup is rotated out of engagement for removal.

Abstract: This invention relates to a storage and shipping system comprising corrugated containers which house plastic vessels or bottles used to hold fragranced liquid bleaches in which the shipping and storage containers are stacked on top of one another. In the stacks in all of the shipping and storage containers except for the topmost one, the plastic vessels will share some of the vertical component of the compression load caused by the shipping and storage container directly located above a given shipping and storage container. The compression load can cause stress-cracking in the vessels or bottles if strongly wetting surfactants are used to disperse the fragrances.

Abstract: A transparent, durable container for housing and delivering a free-flowing granular dry oxidant bleach composition, the container being constructed of a heteropolymeric plastic which maximizes transmission of water vapor for minimum decomposition of the oxidant bleach stored within the container. The selected plastic has a water vapor transmission rate of at least about 2 g/day/100 in..sup.2 /mil. thickness. The container may include a fragrancing means located remote from the container. The fragrancing means is isolated from the bleach composition by an apertured barrier which allows the fragrance to contact the bleach composition but does not allow the bleach composition to contact the fragrancing means.