Abstract: A covering multilayer film or sheet structure for agricultural application, which consists essentially of:(1) a film or sheet of a resin composition comprising (A) 100 parts by weight of a thermoplastic resin selected from the group consisting of olefinic resins and vinyl chloride resins and (B) about 1 to about 40 parts by weight of an acetal resin,and(2) a layer of the thermoplastic resin (A) laminated to at least one surface of the film or sheet (1); and a method for maintaining an agricultural locus at temperatures suitable for the growth of plants, using aforesaid covering multilayer film or sheet.

Abstract: Opaque release sheet bearing a coating on one side thereof comprising a primary release agent in the form of air-containing microcapsular opacifiers in combination with a minor amount of a secondary release agent, such as a silicone polyglycol copolymer, a methoxysilane, polyethylene, a metal complex or the like, and the opposite side coated with a tacky, pressure-sensitive adhesive. A laminate comprising a substrate carrying a layer of said adhesive adjacent a layer comprising the aforesaid release composition.

Abstract: A coated abrasion-resistant optical element, such as an eyeglass lens, formed of a typical rigid polymeric substrate of relatively low scratch resistance coated on at least one surface with a relatively soft, resilient, and tough transparent polymeric material. The essential characteristics of the coating material resulting in an abrasion-resistant protective film for the optical element are disclosed.

Abstract: Opaque release sheet comprising a base having a coating comprising a primary release agent in the form of air-containing microcapsular opacifiers which may be used in combination with a minor amount of a secondary release agent, such as silicone-poly-glycol copolymer, a methoxysilane, polyethylene, a metal complex or the like, provide opaque, lightweight, dimensionally stable release sheets.

Abstract: An aqueous alkaline dispersion of a rubbery vinyl pyridine copolymer and a water soluble, heat reactable o-cresol-formaldehyde-resorcinol resin, in certain amounts, is useful in forming an adhesive for bonding glass fiber reinforcing elements or cords to rubber compounds or stocks. After dipping the glass fiber cord in the one-step adhesive dip, the coated cord is heated to d ry it and heat cure or heat set the adhesive on the cord. Thereafter, the adhesive containing glass fiber cord is combined or laminated (calendered) with a curable rubber compound and the resulting assembly is cured to form a composite in which the glass fiber cord is bonded to the rubber by means of said adhesive.

Abstract: Compounds containing a benzophenone or a substituted benzophenone moiety are (a) autophotopolymerizable, (b) photopolymerizable in compositions with another photoinitiator, and (c) photoinitiating in compositions with another photopolymerizable material.

Abstract: Compounds containing a benzophenone or a substituted benzophenone moiety are (a) autophotopolymerizable, (b) photopolymerizable in compositions with another photoinitiator, or (c) photoinitiating in compositions with another photopolymerizable material.

Abstract: Compounds containing a benzophenone or a substituted benzophenone moiety are (a) autophotopolymerizable, (b) photopolymerizable in compositions with another photoinitiator, and (c) photoinitiating in compositions with another photopolymerizable material.

Abstract: A metallized polymeric article in which the metal coating is more firmly adhered is provided by disposing between the polymeric substrate and the metal top coat a poromeric adhesive coating. The poromeric adhesive coating is produced by coating onto the substrate a solution or dispersion of a polymer which when coagulated by exposure to an atmosphere of a suitably high relative humidity coagulates to form a poromeric adhesive coating.

Abstract: Compounds containing a benzophenone or a substituted benzophenone moiety are (a) autophotopolymerizable, (b) photopolymerizable in compositions with another photoinitiator, or (c) photoinitiating in compositions with another photopolymerizable material.

Abstract: The addition of polyvinyl acetate to the core stock impregnating resin solution makes possible the preparation of relatively thin but yet strong plastic laminates which are also characterized by ready adhesion with contact adhesive without preparatory sanding and with only light sanding or roughening using less expensive adhesives. The materials so treated are also non-blocking.

Abstract: Rubber compounds are readily bonded to polyester reinforcing elements, particularly tire cords of polyester fibers, using a two-step dip process in which the first dip consists essentially of a low molecular weight polyallyl-glycidyl ether in aqueous media and the second dip consists essentially of an alkaline aqueous dispersion of a minor amount by weight of a mixture of a major amount by weight of a rubbery vinyl pyridine copolymer and a minor amount by weight of a heat reactable resinous composition. High H-adhesions are obtained with this process.

Abstract: An aqueous alkaline dispersion of a rubbery vinyl pyridine copolymer and a water soluble, heat reactable o-cresol-formaldehyde-resorcinol resin, in certain amounts, is useful in forming an adhesive for bonding glass fiber reinforcing elements or cords to rubber compounds or stocks. After dipping the glass fiber cord in the one-step adhesive dip, the coated cord is heated to dry it and heat cure or heat set the adhesive on the cord. Thereafter, the adhesive containing glass fiber cord is combined or laminated (calendered) with a curable rubber compound and the resulting assembly is cured to form a composite in which the glass fiber cord is bonded to the rubber by means of said adhesive.