Armstrong World Industries, Inc.

Armstrong Cork Company

Richard E Felter

Deborah L Musser

Dean A Markley

Thomas Posipanko

John R Eshbach

Martin Dees

Larrimore B Emmons

Decoration polyvinyl chloride surface covering structures are described which have antistatic or static dissipative capabilities. Several features are described herein which can be taken advantage of to lower the normal conductivity of the polyvinyl chloride sheet and yet still maintain an attractive or decorative appearance.

Polyvinyl chloride surface covering compositions having reduced

Particulate vinyl resin mixed with a liquid premix of carbon black, plasticizer, etc. provides surface resistivities of 10.sup.4 -10.sup.9 ohm/sq. with as little as 0.2 to 5% by weight carbon black in fused sheets or films useful for conductive flooring or wrapping. Overcoating with a plastisol before fusion provides a smooth surface without loss of static dissipative properties. Conductive TiO.sub.2, Sb/SnO.sub.2, organic titanates, dispersions of carbon black and titanium dioxide, di-2-ethylhexyl phthalate, epoxidized soybean oil, polyethylene glycol and organic stabilizer are useful for preparing PVC resin compositions.

Static dissipative vinyl surface covering materials, methods for them,

Coating compositions and their preparation are described. The compositions can be used to give surfaces a decreased electrical surface resistivity. Choline antistats are used in amounts of about 2% or less by weight, and are combined with long chain quaternary ammonium salt antistats, in a solution with a binder to give antistatic or stat dissipative coating compositions.

Static dissipative composition

Static dissipative vinyl sheet and film

A surface dissipative coating is provided of polymethylmethacrylate, choline methosulfate, long chain quaternary antistat, polyglycol monoethyl ether acetone, and fumed silica. A clear aqueous coating composition replaces polymethylmethacrylate with polyurethane. Surface resistivities of 10.sup.6 -10.sup.7 are obtained.

The present invention relates to novel compositions comprising epoxy resins and phosphate ceramic compositions derived from wollastonite, a metal oxide, and phosphoric acid. In addition to providing a curing component for the inorganic constituents of the composition, the phosphoric acid also serves as an acid catalyst for the epoxy resin. As a result, a system is obtained which can be highly filled with inert material, yet which provides superior resistance to traffic and other wear conditions. In one preferred embodiment, the above composition comprises latent curing additives which provide an accelerated cure to the system.

Epoxy-phosphate ceramic compositions and methods of preparation

An article which has utility as a surface covering for materials such as resilient flooring, furniture, walls, ceilings, counter tops and the like is produced by aligning and embedding a plurality of hollow fibers or metallic fibers on or near the surface of a translucent medium. The article is typically in the form of a film, sheet, or board.

Surface covering articles

An article which has utility as a decorative surface for materials such as resilient flooring, furniture, walls, ceilings, counter tops and the like is produced by aligning and embedding a plurality of fibers in a translucent binder, curing the binder and thereafter subjecting the binder to tension which is applied in such a manner to thereby create aligned air pockets along the surface of at least some of the fibers. The article, thus produced, is typically in the form of a film, sheet, or board.

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Lancaster, PA, United States of America

Richard E Felter