A mat unit is formed from at least two layers ultrasonically welded together. Each layer is individually formed from non-vinyl nontoxic thermoplastic elastomer (TPE) material. In ultrasonically joining the two layers together, there is no need to use additional materials, such as adhesive (i.e., chemical attachment) or stitched thread (i.e., mechanical attachment) to form the joint/weld point. Once formed from the two layers, the mat unit has four quadrants and a plurality of longitudinal ribs integrally formed in the first layer positioned in the first and third quadrants, and a plurality of transverse ribs integrally formed in the first layer positioned in the second and fourth quadrants. Additionally, there are a plurality of longitudinal ribs integrally formed in the second layer positioned in the second and fourth quadrants, and a plurality of transverse ribs integrally formed in the second layer positioned in the first and third quadrants.

A laminate is provided which includes a substrate and a structural body including a base portion and a through hole and which can concurrently satisfy stickiness and releasability and can be released with no or little adhesive residue. The laminate includes a substrate and a structural body disposed on the surface of at least one side of the substrate, the structural body including a base portion and a through hole. The base portion of the structural body includes an acrylic triblock copolymer (I) and no tackifier resins or includes an acrylic triblock copolymer (I) and a tackifier resin in a tackifier resin/(I) mass ratio of not more than 20/100. The acrylic triblock copolymer (I) includes two polymer blocks (A1) and (A2) each including methacrylic acid ester units and one polymer block (B) including acrylic acid ester units represented by the general formula CH.sub.2═CH—COOR.sup.1 (1) (wherein R.sup.1 denotes a C4-C12 organic group). The acrylic triblock copolymer (I) has an (A1)-(B)-(A2) block structure and a weight average molecular weight of 50,000 to 250,000. The total content of the polymer blocks (A1) and (A2) is not more than 35 mass % of the acrylic triblock copolymer (I).

A non-slip foam floor mat includes a mat body, a plastic film and a non-slip layer. The mat body is made of a foam material. The plastic film is attached to a surface of the mat body. The plastic film has a top surface. The top surface is processed by electric shock or flame to form a plurality of fine dents. The non-slip layer is formed of a non-slip coating coated on the top surface of the plastic film. The non-slip coating is embedded in the fine dents and tightly joined to the plastic film, thereby forming a high friction coefficient to achieve a non-slip effect.

Anti-slip coverings for underlying surfaces are shown and described. The anti-slip coverings include a layer made of a semi-flexible material that is configured to receive contact from an object and has slits at least partially extended through the layer. The layer includes a cut-out pattern comprised of a plurality of cut outs cooperatively aligned with the slits to enable the slits to at least partially open when one or more of a downward force and a horizontal force is applied by the object onto the anti-slip covering. In some examples, the anti-slip covering includes a second layer disposed between the first layer and the underlying surface to allow compression of the first layer when a downward force is applied on the anti-slip covering.

Reversible floor mats having two layers bonded together at an undulating surface are described. Each layer has a generally non-constant across over its width and length. The combined thickness of the two layers is generally constant over its width and length. The layers have different colors and/or different surface textures to provide different working surfaces.

A decoupling mat (1) for a surface covering structure that can be covered by covering elements has a strip- or plate-shaped compensation element (2) which has upwardly projecting formations (4) arising from a lower support plane (3), which formations from an upper covering plane (6) at a distance from the lower support plane (3) and are arranged spaced apart from one another and have at least in sections an undercut (8) along their periphery. A water-permeable cover is fixed on a bottom side (12) of the lower support plane (3) and prevents penetration by a viscous adhesive into the upwardly projection formations (4). On at least some formations (4), the undercuts (8) are arranged along a region, extending in a curved manner, along a side wall of the upwardly projecting formations. A plurality of the first undercuts (8) is oriented in a first direction and a plurality of second undercuts (8) is oriented in a second direction. The cover may have a perforation or consist of a water permeable textile woven fabric or sheet, or of a water permeable non-woven fabric (13). A plurality of adjacent formations (4) are respectively connected to one another by ventilation ducts (7) projecting from the lower support plane (3), wherein the ventilation ducts (7) do not extend up to the upper covering plane (6).

A method for making a yoga pad includes a step of preparing a netted base; a step of cutting the netted base into two adhesive units; a step of attaching a foam pad to the netted layer of one of the adhesive layers; and a step of adhering a towel to the C-shaped resilient members of the adhesive layer to form a yoga pad. The C-shaped resilient members are combined with the fibers on the towel in axial direction so that the foam pad is detachably connected to the towel. The fibers of the towel are engaged with the openings of the free ends of the C-shaped resilient members to provide a resistance in lateral direction to the towel which does not easily shift relative to the foam pad.

An industrial mat that has a support core configured and arranged to support other components of the mat; and upper and lower layers that provide upper and lower surfaces of the mat and that protect the support core. The support core includes a frame of longitudinal side members, end members and cross members each of which is made of steel or a thermosetting plastic material. The frame can include wood, plastic or elastomeric internal members or materials to fill internal open areas of the frame, with the upper and lower layers and the sides and ends of the frame retaining the internal members or materials therein. The mat preferably includes lifting elements of D-shaped rings, O-shaped rings, chains, or cables attached to the upper or lower layer or the support core to provide certified overhead lifting of the mat for installation and reclamation thereof.

Crumb rubber obtained from recycled tires is subjected to an interlinked substitution process. The process utilizes a reactive component that interferes with sulfur bonds. The resulting treated rubber exhibits properties similar to those of the virgin composite rubber structure prior to being granulated, and is suitable for use in fabricating new tires, engineered rubber articles, and asphalt rubber for use in waterproofing and paving applications.

The anti-slip mat includes a covering layer and a structural layer. The covering layer is formed with a plurality of apertures. The structural layer has a predetermined thickness and has a plurality of through holes extending vertically. The covering layer is disposed on a top face of the structural layer. The apertures communicate the through holes. The structural layer is weaved by a water-proofing fiber to form a three-dimensional structure. Each aperture has an internal diameter smaller than an internal diameter of each through hole.