Self-immolative polymers and compositions comprising such polymers are described. The polymers are copolymers of phthalaldehyde and one or more additional aldehydes and can degrade/decompose upon exposure to a desired stimulus, like light, heat, sound, or chemical trigger. The copolymers can be linear or cyclic, and can be crosslinked or uncrosslinked. Polymer compositions, including multilayered and multiregioned compositions, containing the copolymers are disclosed. These compositions can contain agents such as crosslinking agents, crosslinking catalysts, photocatalysts, thermocatalyst, sensitizers, chemical amplifiers, freezing point depressing agent, photo-response delaying agents, and the like. Methods of making and using the copolymers are also described.

A flying leads assembly includes a flying lead having an inner layer which forms a liquid passage and an outer layer which acts as a sacrificial layer in use, thereby allowing integrity of the passage to be maintained for a long period of time. A further layer is provided intermediate the inner and outer layers which can be used to provide support to the assembly. The flying lead assembly, or a number of assemblies, are then located in a guide with lubricant material.

A degradable containment includes an outer structural layer constructed of a pulp material, a central carrier layer constructed of a biopolymer, and an interior nanomaterial layer constructed of a nanomaterial.

Disclosed is a liquid removal drypad and liquid removal system suitable for absorbing and removing liquid produced by an individual. The drypad can include one or more perforated conduits arranged with an absorbent material. A source of reduced pressure can be connected to the one or more perforated conduits to remove liquid from the drypad. The drypad can be positioned under a patient and liquid produced by the individual can be removed by applying reduced pressure to the drypad. The drypad can be made by combining one or more conduits with an absorbent material.

An article of footwear is provided that includes a sole structure and an upper attached to the sole structure. The upper includes an exterior layer and a base layer, and the exterior layer includes a biodegradable layer and a biologically active agent capable of biodegrading the biodegradable layer.

Disclosed is a liquid removal drypad and liquid removal system suitable for absorbing and removing liquid produced by an individual. The drypad can include one or more perforated conduits arranged with an absorbent material. A source of reduced pressure can be connected to the one or more perforated conduits to remove liquid from the drypad. The drypad can be positioned under a patient and liquid produced by the individual can be removed by applying reduced pressure to the drypad. The drypad can be made by combining one or more conduits with an absorbent material.

The present invention relates to a package comprising the composition of at least one flexible film (casing), containing attached internally, externally or between films, a section of blade/plate/plate semirigid material or flexible reinforced (skeleton/soul) perimeter less than the flexible film (casing) that contains it, so that, when the packaging, the union formed of at least two opposite edges, semirigid or flexible material (skeleton/soul), tend to go back to your original form, gives the packaging a predetermined format. This is a particularly flexible, self-sustaining rolled. Such packaging offers a combination of advantages noted in flexible packaging in combination with advantages of rigid packaging, particularly on the possibility of stacking and ease of manufacturing and handling. Still, the present invention refers to a process of preparation of the said package.

Membranes and methods for producing them are disclosed. The membranes comprise a core layer comprising a composite of alternating thermoplastic polyurethane (TPU) and barrier microlayers, and they comprise at least one cap layer that is bonded to the core layer or a structural layer. In some embodiments, at least the cap layer comprises a polydiene polyol-based TPU. The membrane may further comprise a rubber layer bonded to the cap layer.

A water-degradable welding purge dam apparatus for purging a weld zone of a pipe assembly having first and second pipes having respective first and second pipe ends to be welded together at a root gap. The purge dam apparatus includes a blocking plate assembly having an outer blocking plate, an inner blocking plate, and zero or more interior blocking plates. The blocking plate assembly may be formed from one or more water degradable materials to facilitate removal of the purge dam apparatus from the pipe assembly using an aqueous fluid following welding. At least one of the blocking plates may include a plurality of fluid flow apertures to aid distribution of the aqueous fluid through the blocking plate assembly. If desired, first and second ones of the blocking plate assembly may be ganged together by an interconnection assembly to form a ganged set of blocking plate assemblies.

The present application relates to the technical field of packaging materials for electronic devices, and particularly to a laminated material for a packaging bag. The laminated material for the packaging bag includes a polyurethane outer layer, a polyurethane aluminized composite layer and a PE composite layer from outside to inside successively, the polyurethane aluminized composite layer includes a polyurethane inner layer and a vacuum aluminized film, in which the vacuum aluminized film is attached to the polyurethane outer layer, and both the polyurethane outer layer and the polyurethane inner layer are degradable; and the PE composite layer is formed with a plurality of through holes perforated in the polyurethane inner layer. When the laminated material for the packaging bag is microorganism degradation, both polyurethane outer layer and polyurethane inner layer are degraded, which can help to recycle aluminum.