Laminated glass has sheets of plate glass with a bonding layer intervening therebetween for integration. The bonding layer is formed of a resin composition comprising (A) a terpolymer of ethylene, vinyl acetate, and an acrylate and/or methacrylate monomer, (B) a terpolymer of ethylene, vinyl acetate, and maleic acid and/or maleic anhydride, (C) a terpolymer of ethylene, an acrylate and/or methacrylate monomer, and maleic acid and/or maleic anhydride or (D) an ionomer resin in the form of an ethylene-methacrylic acid copolymer with a metal ion binding molecules thereof as a thermosetting resin, an organic peroxide, and a silane coupling agent. The resin composition is thermoset between the glass sheets.
High clarity optical and safety glass laminate interlayer films and optical laminates are described. The films and their laminates comprise very low density polyethylene and/or its copolymers, preferably polymerized with metallocene catalysts, and modified with additives, such as coupling agents, clarifying or nucleation agents, UV-light absorbers, pigment or color concentrate, and IR-light blockers. The very low density polyethylene is laminated to EVA film for improved bondability in optical laminates.
High clarity optical and safety glass laminate interlayer films and optical laminates are described. The films and their laminates comprise very low density polyethylene and/or its copolymers, preferably polymerized with metallocene catalysts, and modified with additives, such as coupling agents, clarifying or nucleation agents, UV-light absorbers, pigment or color concentrate, and IR-light blockers. The very low density polyethylene is laminated to EVA film for improved bondability in optical laminates.
An optically transparent glazing measures about 3 to 5 mm in total thickness, and has an interlayer film, the interlayer film comprises at least two polymeric film layers: a core film layer having a modulus of at least 25,000 psi (173 MPa) and a surface film layer having a maximum modulus of 15,000 (104 MPa) at 50 to 10,000 Hz and 20.degree. C.; and the glazing is characterized by an acoustical barrier insulating capacity at least equivalent to that of a 3.85 mm thick monolithic pane of glass. The glazing also has an Articulation Index value of less than 64.2% at 50 to 10,000 Hz, a sharpness value of less than 150 at 50 to 10,000 Hz, a penetration resistance of at least 9 meters in test method ECE R43, A6 4.2, and a maximum haze of 4%. The interlayer film has a bending stiffness of at least 0.01 Pa*m.sup.3. The surface film layer has a maximum tan delta of 0.6 at 50 to 10,000 Hz and 20.degree. C. The interlayer film preferably comprises one core film layer of between 1.0 and 1.7 mm in thickness within two surface film layers, each between 0.2 and 0.6 mm in thickness. The glazing preferably comprises a glass/interlayer film glass sandwich having a glass/film thickness ratio from 4.2/0.8 to 1.0/2.8.
The present invention is a polymeric resin composition having improved toughness, suitable for use in transparent glazing, comprising an at least partially neutralized ethylene acid copolymer metal carboxylate resin, wherein the metal carboxylate consists essentially of zinc metal counter-ions.
The invention provides a non-autoclave method and apparatus for producing laminated glass. The method and apparatus provide a non-autoclave laminated glass process that is continuous and thus eliminates the batch processing of known autoclave processes. In addition, the method and equipment do not require vacuum processes, involving complicated vacuum bags, vacuum rings, or the like.
