An improved laminated enzyme containing membrane for polarographic sensors and methods of making these membranes are disclosed. The laminated membrane comprises an outer, support layer having pores therein of greater than about 300 angstrom units in diameter and this outer membrane has a pore density of less than 6.times.10.sup.8 pores/cm.sup.2. The porosity of the outer membrane may be on the order of 0.001-0.2%. An enzyme layer is interposed between the support layer and an inner, barrier laye...

A synthetic structure is used to simultaneously provide food, shelter and reproductive support for many aquatic species. Synthetic seagrass may be produced in the form of flexible mats with a plurality of ribbons. The lower ends of the ribbons are anchored to the benthos. The other ends of the ribbons are buoyantly supported in the photic zone. The ribbons may be economically produced in plural coextensive layers, with one layer providing buoyancy and the other layer being structured to enhance ...

A laminated panel for use in the construction of vehicles bodies or buildings comprises a pair of substantially rigid outer layers (1,2), separated by a core (3) of foamed plastics material. The core includes a plurality of spaced elongate inserts (4) of hard plastics material such as ABS. The inserts act as anchor points for attachment of lashing rails or the like externally of one of said outer layers (1,2).

A polymer useful for a multi-stage inhibiting of the migration of pigmented inks in porous inkjet receptor media is disclosed. The polymer is quite soluble in water and has quaternary amine functional groups. Methods of making and using such polymer are also disclosed.

An ink jet recording element comprising a support having thereon an image-receptive layer capable of accepting an ink jet image, the layer comprising an open-pore membrane of a mixture of a water-insoluble polymer, a water-absorbent polymer and a mordant, the mixture containing at least about 25% by weight of the water-absorbent polymer, at least about 7% by weight of the mordant, and the balance being the water-insoluble polymer, the mordant comprising a polymer or copolymer containing a quater...

The waterproof/breathable moisture transfer liner for alpine, snowboard and hiking includes an inner liner selected from technically advanced fabrics which are carefully selected. A series of layers are provided outside the inner liner including foam material and insulated nonwoven layers, breathable membranes, a supportive mesh included in a moldable foam, or moldable a spacer material and an outer shell fabric. The applicability of the liner to alpine boots, snowboard boots, cross country boot...

A self-supporting energy absorbing composite includes: i) a solid foamed synthetic polymer matrix; ii) a polymer-based dilatant, different from i) distributed through the matrix and incorporated therein during manufacture of i); and iii) a fluid distributed through the matrix. In another embodiment, a self-supporting energy absorbing composite includes: iv) a solid, closed cell foam matrix; v) a polymer-based dilatant, different from i), distributed through the matrix; and vi) a fluid distribute...

The invention herein relates to a kind of improved mouse device pad, specifically referring to kind improved mouse device pad that is constructed of knitted fabric and polyvinyl chloride (PVC) compound foam, with the innovations of the invention herein including the utilization of an appropriate quantity of softener and adhesive agents as additives during the fabrication process of the PVC compound foam, which enables after fabrication pliancy and greater surface contact stiction because the afo...

A porous molded article having microvoids therein which comprises a stretched product of a resin molded material made up of, as the base material, an olefinic resin composition containing from 95 to 50% by weight of a crystalline olefinic resin component (A) and from 5 to 50% by weight of a polymer of a cyclic olefin having a weight average molecular weight of not less than 1,000 and less than 10,000 and a glass transition point of from 180 to 400.degree. C. component (B).

A thermoplastic polyester resin is fed into a twin extruder, wherein a resin is heated for melting, thereby removing moisture in the resin by evacuating and sucking from a vent port thereof, injecting a foaming agent into the resin to which is pushed out as a foaming sheet and, after that, forming the foaming sheet which is divided into a forming body and a trimming loss, whereby the trimming loss is crushed to obtain crushed materials which are provided so as to put the materials into the twin ...