Basf Corporation

Other

Michael L Jackson

Mark A Easterle

Richard C Rossio

James R Keene

A composite mat and sheet structure for installation atop a subfloor to underlie a layer of hardenable, cementicious material such as gypsum concrete or Portland concrete that is poured atop the composite structure to harden in situ. The composite structure includes 1) a mat of substantially uniform thickness defined by an array of entangled, intertwined polymeric filaments that twist and turn at random, that are spaced from each other along a majority of their lengths, that preferably are bonded at their randomly located intersections, and that cooperate to give the mat an open-space character well suited for venting vapor from an area beneath the layer of hardenable cementicious material during hardening or curing thereof; and 2) a sheet of barrier material that overlies the mat, is bonded to the mat, and is pervious to water vapor but impervious to water in liquid form, thereby to permit water in vapor form to escape from the hardenable material through the barrier sheet into the mat and to be vented through the open-space area of the mat while the barrier sheet protects the subfloor from damage by water in liquid form that should be confined atop the barrier.

Composite tangled filament mat with overlying liquid moisture barrier for cushioning and venting of vapor, and for protection of underlying subfloor

An exercise apparatus, a method of using the apparatus, and a method of exercising are disclosed. In one or more embodiments, the exercise apparatus comprises an exercise platform comprising a base and a lid, the platform defining an interior space accessible by moving the lid from a closed to an open position with respect to the base, at least one handle associated with the platform for use by a user in moving the exercise apparatus, at least one wheel movably mounted to the base and permitting the platform to be rolled along a surface, at least one riser for use in supporting the platform upon a surface to increase a height thereof and sized to fit within the interior space when not in use, at least one resistive element for selective attachment to the platform for use in an exercise by a user, at least one mount associated with the platform to which the at least one resistive element may be attached, and at least one hand/foot peg for use with the platform.

Exercise apparatus

The invention relates to energy absorbing, water blown, rigid polyurethane foams. The foams of the present invention are low density, predominantly open-celled foams which exhibit a relatively constant consistency of compressive strength over deflection. Such foams are suitable as light weight alternatives in traditional energy absorbing applications.

Energy absorbing, water blown, rigid polyurethane foam

The invention relates to water blown, low density, energy absorbing rigid polyurethane foam articles which exhibit minimal springback or hysteresis characteristics. The articles produced from the foams of the present invention maintain a constant crush strength of material up to about 70% deflection and are useful in appropriate automotive applications such as side impact bolsters.

Energy absorbing, water blown, rigid polyurethane foam articles

The invention relates to energy absorbing, water blown, rigid polyurethane foams. The foams of the present invention are low density, predominantly open celled foams which exhibit a relatively constant consistency of compressive strength over deflection. Such foams are suitable as light weight alternatives in traditional energy absorbing applications.

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Allen Park, MI, United States of America

Michael L Jackson