A thermoset material containing -hydroxyesters wherein said thermoset material is subject to a mechano-chemical process to regenerate an epoxide and a carboxylic acid functionality. A curative for epoxidized plant-based oils and epoxidized natural rubber is created from the reaction between a naturally occurring polyfunctional acid and an epoxidized plant-based oil is disclosed. The curative may be used to produce porosity-free castable resins and vulcanize rubber formulations based on epoxidized natural rubber. Materials made from disclosed materials may be advantageously used as leather substitutes.

A wrapped V-belt includes: a belt main body containing a compression layer containing a compression rubber layer and a fabric-laminated body layer a tension rubber layer and a tension member buried between the compression layer and the tension rubber layer; and an outside cloth that covers a periphery of the belt main body, in which the compression layer has a plurality of notch portions not covered with the outside cloth, and the notch portion has a top disposed in the fabric-laminated body layer.

Waterproof engineered floor and wall planks have a veneer layer bonded with a plastic composite core, and an underlayer, preferably an underlayer of cork.

Using a conveyance roller having an outer peripheral surface which is capable of conveying two sheets with an elastic element sandwiched therebetween, in a longitudinal direction of the sheets, and formed with a convex section; and a clamping and pressing device, the sheets with the elastic element sandwiched therebetween are ultrasonic-welded together under pressing. The convex section is formed in a shape extending along a line intersecting a conveyance direction of the conveyance roller, and the convex section is provided with a plurality of grooves at positions spaced apart from each other in a longitudinal direction thereof, wherein each of the grooves extends in the conveyance direction of the conveyance roller to allow a portion of the sheets on which the elastic element is disposed, to be inserted therein.

Provided herein are back sheets comprising and/or otherwise made from thermoplastic vulcanizates, PV modules comprising such TPV-based back sheets, and methods for forming the TPV back sheets and PV modules. TPV-based back sheets provide particular advantages over incumbent back sheets, including increased flexibility, greater electrical insulation properties, and more desirable barrier properties. The TPV-based back sheets of some embodiments provide PV modules improved endurance, particularly under the changing and often harsh environmental conditions in which PV modules are often deployed. The TPV-based back sheets of some embodiments also enable efficient construction of unusual PV module geometries, such as non-planar (e.g., curved and/or hinged) geometries.

The present invention provides a sheet having an elastomer layer having a Shore A hardness of less than 40, wherein the elastomer layer has an adhesion force to stainless steel of not more than 11 oz/in at 90 degree peel strength.

A helmet has inner and outer shells separated by a plurality of interconnected relatively soft columns or posts. The columns each have a middle post or pillar section, a capital that is of larger diameter than the post, and a base also of larger transverse dimension than the post. When an impact above a design threshold occurs on the outer shell, the columns, particularly the post sections thereof, near the impact location compress and buckle, dissipating impact kinetic energy, while columns spaced from the impact zone stretch and support more of the impact force. The applied force is therefore reduced and spread out over a relatively large area, and a resultant wave created within the column manifold disperses additional heat, further reducing the force and torque applied on the outer shell and transmitted to the inner shell and onto the skull of a helmet user. A method and mold for fabricating the column manifold are also disclosed.

A laminated surface covering including a facing material made of vinyl and a backing material comprising a rubber component. The rubber component comprising at least a matrix of bonded rubber granules. A bonding material disposed between the facing material and the backing material. The facing material configured to melt at a temperature between 165 F. and 248 F. infiltrating the backing material thereby essentially encasing the rubber granules of the matrix and providing fire retardation and smoke suppression qualities.

The invention relates to a cylinder (10) which is set up for application of at least one hollow cylinder, the cylinder (10) having a layer structure which comprises in this order, from inside to outside, a base layer (12) or a cylinder core, a first compressible layer (14), a filling layer (16), an interlayer (18), a second compressible layer (20) and an outer layer (22), the outer layer forming a lateral surface of the cylinder.

The invention further relates to arrangements comprising at least one such cylinder (10) and further cylinders.

A process and system for making a laminated surface covering and the surface covering itself are described. The covering includes several layers bonded to each other. The system performs the process. One example of the process includes passing a first material across a first conveyor, passing a second material across a second conveyor, passing a bonding material across a third conveyor, contacting the first material and the second material to the bonding material, and heating at least one of the first material and the second material. The process also includes introducing the first material, the second material, and the bonding material into a pressure zone such that the bonding material is introduced between a bottom surface of the first material and a top surface of the second material. The process applies pressure to bond the first material and second material together via the bonding material to produce a laminated material.