TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The acid terpolymer comprises 18-25 (preferably 18-23) wt.% of copolymerized units of the alpha , beta -ethylenically unsaturated carboxylic acid and 0.5-50 (preferably 15-40) wt.% of copolymerized units of the alpha , beta -ethylenically unsaturated carboxylic acid ester. The film or sheet comprised of the acid terpolymer composition is in a multilayer form and comprising a first surface sub-layer, a second surface sub-layer, and optionally one or more inner sub-layers, where the first surface sub-layer comprises or is made of the acid terpolymer composition and each of the other sub-layers comprise or are made of a polymer material comprising acid copolymers, ionomers, ethylene vinyl acetates, poly(vinyl acetals), polyurethanes, polyvinylchlorides, polyethylenes, polyolefin block elastomers, poly( alpha -olefin-co- alpha , beta -ethylenically unsaturated carboxylic acid ester) copolymers, silicone elastomers and/or epoxy resins. The film or sheet comprised of the acid terpolymer composition has its second surface sub-layer, at least one of the optional inner sub-layers, or both, comprising or formed of an ionomer having a melting point of at least 80 degrees C. The film or sheet comprised of the acid terpolymer composition has each of its first and second surface sub-layers comprising or made of the acid terpolymer composition and at least one inner sub-layer comprising or made of the ionomer having a melting point of at least 90 degrees C. The film or sheet comprised of the acid terpolymer composition has a total thickness of 2 mils (0.051 mm) to 250 mils (6.35 mm). In (I), each of the first and second surface sub-layers have a thickness of 0.5 mils (0.013 mm) to 5 mils (0.13 mm); each of the inner sub-layers have a thickness of 0.5 mils (0.013 mm) to 120 mils (3 mm); and the total thickness of the multilayer film or sheet is 2 mils (0.051 mm) to 250 mils (6.35 mm). The article is a safety laminate, further comprising at least one outer laminate layer comprising or formed of a rigid sheet or polymeric film, where the rigid sheet is glass and rigid polymeric sheets formed of polycarbonates, acrylics, polyacrylates, cyclic polyolefins, polystyrenes, polyamides, polyesters and/or fluoropolymers; and the polymeric film comprises a polymeric material comprising polyesters, polycarbonate, polyolefins, norbornene polymers, polystyrene, styrene-acrylate copolymers, acrylonitrile-styrene copolymers, polysulfones, nylons, polyurethanes, acrylics, cellulose acetates, Cellophane (RTM: Flexible, transparent film made of regenerated cellulose), poly(vinyl chlorides) and/or fluoropolymers. The safely laminate comprises two outer laminate layers and an interlayer that is sandwiched between the two outer laminate layers, where each of the two outer laminate layers independently comprises or is formed of the rigid sheet or the polymeric film; and the interlayer comprises the film or sheet comprised of the acid terpolymer composition and optionally other polymeric films or sheets. The film or sheet comprised of the acid terpolymer composition has a thickness of 15 mils (0.38 mm) to 120 mils (2.28 mm) and is sandwiched between two glass sheets. The film or sheet comprised of the acid terpolymer composition has a thickness of 15 mils (0.38 mm) to 90 mils (2.28 mm) and is sandwiched between a glass sheet and a polyester film, where the polyester film is optionally hard coated on the outside surface. The article is a solar cell pre-lamination assembly, further comprising a solar cell component formed of one or more electronically interconnected solar cells and having a light-receiving side that faces a light source and a back side that is opposite from the light source. The solar cell is multi-crystalline solar cells, thin film solar cells, compound semiconductor solar cells and/or amorphous silicon solar cells. The article comprises a front encapsulant layer positioned next to the light-receiving side of the solar cell component and a back encapsulant layer positioned next to the back side of the solar cell component, where the front encapsulant layer is formed of the film or sheet comprised of the acid terpolymer composition that has a thickness of 2 mils (0.051 mm) to 20 mils (0.51 mm); and the back encapsulant layer is formed of the polymeric material. The front encapsulant layer and the back encapsulant layer both comprise or are formed of the film or sheet comprised of the acid terpolymer composition. The article further comprises an incident layer positioned next to the front encapsulant layer and a backing layer positioned next to the back encapsulant layer. The incident layer is glass sheets; the polymeric sheets; and the polymeric films. The backing layer comprises or is formed of glass sheet, the polymeric sheet, the polymeric film, metal sheet and ceramic plate. The article contains essentially of, from a top side that faces a light source to a bottom side that is opposite from the light source, an incident layer that is positioned next to, a front encapsulant layer that is positioned next to, the solar cell component that is positioned next to, a back encapsulant layer that is positioned next to, a backing layer, where one or both of the two encapsulant layers are formed of the film or sheet comprised of the acid terpolymer composition. Preferred Process: The laminating step is conducted by subjecting the assembly to heat. The laminating step further comprises subjecting the assembly to vacuum or pressure.