Abstract: Disclosed is a low formaldehyde emission coating from formaldehyde-based resins that can be applied to a panel for reducing sag and enhancing the strength of the panel. Formaldehyde emissions are reduced by the inclusion of polymeric formaldehyde reactive materials comprising a polyamide scavenger into the coating formula. These formulations are useful as coatings or binders.

Abstract: A stain resistant acoustical panel which incorporates within its structure a relatively small quantity of latex which forms an ultra thin coating within the panel such that water may pass through the inner structure of the panel. The panel may further include a primer coating applied to the facing side of the panel to prevent water stains. The coating contains a chelating agent which provides stain resistance to the coated face of the panel. Additionally, the panel may incorporate both latex within its structure and a primer coating comprising a chelating agent.

Abstract: A stain resistant acoustical panel which incorporates within its structure a relatively small quantity of latex which forms an ultra thin coating within the panel such that water may pass through the inner structure of the panel. The panel may further include a primer coating applied to the facing side of the panel to prevent water stains. The coating contains a chelating agent which provides stain resistance to the coated face of the panel. Additionally, the panel may incorporate both latex within its structure and a primer coating comprising a chelating agent.

Abstract: Disclosed is both a method and composition for making a low formaldehyde emission panel. The panel includes a scrim that is typically formed from fiberglass bound together in a mat by a substantially formaldehyde free resin. The scrim is applied to the facing side of the panel by an adhesive that is also substantially formaldehyde free. The adhesive may also contain a formaldehyde scavenger. The formed panel has a low rate of formaldehyde emittance and can used as an acoustical ceiling panel.

Abstract: Disclosed are polymeric or polymerizable non-formaldehyde containing materials including a crosslinked grid and hydrophilic group chemically attached to the crosslinked grid. The composition further includes a compound having a modulus of elasticity of between about 40 GPa and about 250 GPa, such as mica. The composition, applied as a back coating on to a panel provides a substantial degree of sag resistance under humid conditions.

Abstract: Disclosed is a stain resistant acoustical panel. The panel may incorporate within its structure a relatively small quantity of latex which forms an ultra thin coating within the panel such that water may pass through the inner structure of the panel. Furthermore, the panel may have a coating or primer applied to the facing side of the panel to prevent water stains. The coating contains a chelating agent which provides stain resistance to the coated face of the panel. Additionally, the panel may incorporate both latex within its structure and a primer coating comprising a chelating agent.

Abstract: Disclosed is a low formaldehyde emission coating from formaldehyde-based resins that can be applied to a panel for reducing sag and enhancing the strength of the panel. Formaldehyde emissions are reduced by the inclusion of polymeric formaldehyde reactive materials comprising a polyamide scavenger into the coating formula. These formulations are useful as coatings or binders.

Abstract: Disclosed is both a method and apparatus related to coated panels. The panels are coated with an ultra thin coating of fluoropolymer. The coating imparts resistance to staining, washability, scrubbability, and soiling, as well as long durability. Furthermore, excellent adhesion is obtained with the ultra thin fluoropolymer when applied to panels.

Abstract: The present invention provides for both a composition and method for producing a scratch resistant coating applied to an acoustical panel. The coating primarily comprises binder, filler and mica and is typically applied as a spray. The coating can be characterized as a discontinuous film, whereby sound can pass through the coating to the panel for attenuating sound. The coating is thus enabled to provide a finish and color without compromising the acoustical performance of the substrate. The process primarily comprises combining and mixing the dry components of filler, binder and mica and then combining the same with water and mixing to create an aqueous mix that can be applied to the acoustical panel and dried.

Abstract: Polymeric coatings containing both UV absorbers and dyes are employed to produce transparent, durable film coatings that can significantly increase the level of UV radiation blockage when coated onto substrates including ophthalmic lenses. The dye comprises 1-?(4-methylphenyl)amino!-4-hydroxy-9, 10-anthracenedione. The color-neutral film coatings are resistant to weather and UV degradation.

Abstract: A three-layer antireflective coating composition for a CR-39 or glass substrate comprising a middle layer containing titanium compounds sandwiched between top and bottom layers containing polysiloxane, wherein the top and bottom layers are titanium-free; and a process for preparing said antireflective coating with improved adhesion on a CR-39 or glass substrate. The thicknesses of each of said coating layers is in accordance with preselected equations, and the refractive indices of said coating layers satisfy the following requirements:n.sub.m >n.sub.b,n.sub.m >n.sub.t,andn.sub.b .ltoreq.n.sub.swherein n.sub.m is the refractive index of the middle layer, n.sub.b is the refractive index of the bottom layer, n.sub.t is the refractive index of the top layer, and n.sub.s is the refractive index of the CR-39 or glass substrate.

Abstract: A two-layer antireflective coating composition stacked on a substrate consisting of allyl diglycol carbonate polymer (CR-39) or glass and comprising a bottom layer containing less than 10% by weight of titanium dioxide equivalent weight and a titanium-free top layer containing polysiloxane resin; and a process for preparing said antireflective coating with improved adhesion on a substrate consisting of allyl diglycol carbonate polymer (CR-39) or glass. The thicknesses of each of said coating layers is in accordance with preselected equations, and the refractive indices of a said coating layers satisfy the following requirements:n.sub.s <n.sub.b >n.sub.twherein n.sub.s represents the refractive index of the substrate consisting of allyl diglycol carbonate polymer (CR-39) or glass, n.sub.b represents the refractive index of the bottom layer, and n.sub.t represents the refractive index of the top layer.

Abstract: Polymerizable and cross-linkable, radiation curable coating compositions particularly designed for deposition as an abrasion resistant, tintable coating poly (bis phenyl A) carbonates. The formulation is a mixture including:(a) 25-94% by weight of a polyfunctional acrylate or methacrylate monomer having at least three acrylate functional groups per molecule or a mixture of such monomers;(b) 3-50% by weight of a monomer selected from N-vinyl derivatives of linear or cyclic secondary amides, tetrahydrofurfuryl acrylate or methacrylate, N,N-di(lower alkyl) acrylamide ethylenically unsaturated monosilane, or a mixture of such monomers; and(c) 3-40% by weight of an ethylenically unsaturated monomer having a Tg less than 80.degree. C. or 3-30% of an ethylenically unsaturated copolymer with a Tg less than 100.degree. C.

Abstract: Polymerizable ethylenically unsaturated N-substituted 2,2-dihydrocarbyl-2, 1,3-benzostannathiazolines prepared by the reaction at the amino group of a N-(aminobenzenesulfonyl)-2,2-dihydrocarbyl-2,1,3-benzostannathiazoline precursor with an ethylenically unsaturated reactant capable of alkylating or acylating said amino group. The benzostannathiazolines can be addition homopolymerized and polymerized with other monomers by means of free radical initiators to give high molecular weight polymers useful in the form of shaped objects and self-supported films, and/or as stabilizers for vinyl chloride polymers and the like.

Abstract: A urethane elastomeric impact modifier is provided for 15 rigid thermoplastic polymers. Polyester and polyether urethane elastomers are grafted to the acrylic polymers. Preferred is a polyester, diisocyanate and glycol urethane elastomer terminated with a functional monomer capable of ethylenic polymerization grafting with the acrylic polymer. The modified polymers offer an improved balance of physical properties including higher impact strength, clarity, and weather resistance.