Abstract: The present invention provides a photovoltaic device having an active face, an active area on the active face and an operating wavelength range; and a cover element attached to the photovoltaic device and disposed over the active area of the active face of the photovoltaic element, the cover element having an opacity of at least about 25%. The present invention also provides photovoltaic systems, arrays, roofs and methods using such photovoltaic devices. In one embodiment of the invention, the photovoltaic device is a photovoltaic roofing element in which a photovoltaic element is integrated with a roofing substrate.

Abstract: A roofing membrane includes first and second layers. The first layer includes a low surface energy polymer. A method of installing the roofing membrane includes, along an edge of a first membrane, mechanically removing a portion of the first membrane extending vertically to include the first layer and a portion of the second layer to leave a flap of the first membrane, placing an edge of a second membrane to overlap the first membrane, and bonding the first membrane to the second membrane. The underside of the edge of the second membrane overlies the flap of the first membrane.

Abstract: A multilayer film includes a functional portion including one or more layers, an adhesive layer overlying a major surface of the functional portion, and a fluoropolymer layer overlying a major surface of the adhesive layer opposite the functional portion. The fluoropolymer layer includes a fluoropolymer. The adhesive layer includes an adhesive and an ultraviolet radiation absorber.

Abstract: The invention describes a multi-layered film comprising a modified fluoropolymer and a silicone material. The laminate is useful to protect a photovoltaic cell, for example, as an encapsulant.

Abstract: The invention describes a fluoropolymer laminate that includes a first substrate that can be a modified fluoropolymer having polar functionality and a second substrate. The substrates are laminated at an elevated temperature suitable for lamination to occur and then are subsequently treated with radiation, such as ultraviolet radiation, gamma radiation and/or electron beam.

Abstract: A roofing material includes a first layer including a fluoropolymer, a second layer directly bonded to and directly contacting the first layer, and a third layer underlying the second layer. The second layer includes an unfunctionalized olefinic polymer. The third layer includes a polymeric material and a filler.

Abstract: A roofing material includes a bitumen sheet material and a multilayer capping film. The multilayer capping film includes a first layer comprising a first fluoropolymer and a second layer underlying the first layer. The second layer includes at least 40 wt % of a second fluoropolymer and not greater than 60 wt % of an acrylic polymer. The second layer of the multilayer capping film overlies the bitumen sheet material and the first layer of the multilayer capping film forms an outer surface of the roofing material.

Abstract: The present invention provides a photovoltaic device having an active face, an active area on the active face and an operating wavelength range; and a cover element attached to the photovoltaic device and disposed over the active area of the active face of the photovoltaic element, the cover element having an opacity of at least about 25%. The present invention also provides photovoltaic systems, arrays, roofs and methods using such photovoltaic devices. In one embodiment of the invention, the photovoltaic device is a photovoltaic roofing element in which a photovoltaic element is integrated with a roofing substrate.

Abstract: A roofing material includes a first layer including a fluoropolymer, a second layer directly bonded to and directly contacting the first layer, and a third layer underlying the second layer. The second layer includes an unfunctionalized olefinic polymer. The third layer includes a polymeric material and a filler.

Abstract: An industrial process fabrics having embossed surfaces to facilitate water removal from the product such as paper and paper products being carried thereon by creating voids through embossing to assist in fluid management.

Abstract: An industrial process fabrics having embossed surfaces to facilitate water removal from the product such as paper and paper products being carried thereon by creating voids through embossing to assist in fluid management.

Abstract: The present invention relates to an article of paper machine clothing for use in high temperature applications, which article comprises:a) a paper contacting surface layer adapted in use to contact a forming paper sheet;b) a base layer structure; andc) at least one intermediate layer disposed between said surface layer and said base layer structure, characterised in that said surface layer comprises a fibrous or continuous layer constituting a thermal barrier and providing properties of sheet release.

Abstract: This invention relates to paper machine clothing and has particular reference to paper machine clothing suitable for use in the forming, presing and drying sections of a papermakng machine and comprises a monofilament and/or staple fibre in which themonofilament or staple fibre comprises a polyamide material which has been subjected to a treatment with an aqueous solution of aldehyde in the presence of a catalyst to effect partial cross-linking of the polyamide to provide a gel content thereof within the range of 0.1-75%.