Abstract:
Chemically treated glass fibers having good processability are useful in producing fiber reinforced polymeric matrices, wherein the glass fibers have controlled wettability and are not detrimental to the weatherability of the fiber reinforced polymeric matrices. The chemically treated fibers have the dried residue of an aqueous chemical treating composition having a bisphenol A polyester film forming polymer compatible with and soluble in the matrix polymer, poly(vinyl acetate) polymeric film former, acryloxy-containing or methacryloxy-containing organo coupling agent in an effective coupling agent amount, cationic fiberous lubricant in an effective lubricating amount, with or without a cationic organic quaternary ammonium salt having alkoxy moieties, and with water in an amount to give a total solid for the aqueous chemical treating composition in the range of about 1 to about 30 weight percent. In addition, the aqueous chemical treating composition can have one or more amino-containing organofunctional silane coupling agents. The amount of the organic quaternary ammonium agent generally is in the range of from 0.05 to around 0.4 weight percent of the aqueous chemical treating composition. When this agent is not in the aqueous chemical treating composition, a secondary application of an antistatic agent is performed. The chemically treated glass fibers can be produced in any form such as chopped strand or continuous strand for combination with polymeric matrices including both filled and unfilled systems for producing reinforced polymeric matrices such as glass fiber reinforced polymeric panels which can be clear, translucent or pigmented.
Abstract:
Display rack having tray supports which tilt from a horizontal transport position to an inclined display position and in which the movement of the racks from the first to the second position actuates a brake to lock the rack in place on the floor.
Abstract:
Chemically treated glass fibers can be produced having improved wet-out and resin demand performance when used for reinforced polymeric matrices which have good strength properties. The treated glass fibers have the dried residue of an aqueous treating composition having a water soluble, dispersible or emulsifiable epoxy novalac type polymer, glass fiber coupling agent, a water soluble, dispersible or emulsifiable poly(oxyalkylene-oxyethylene) polyol copolymer, wherein the ethylene oxide portion is present in an amount in the range of about 10 to about 40 weight percent of the copolymer, and the copolymer is present in an effective lubricating amount, and water in a sufficient amount to allow the aqueous treating composition to be applied to the glass fibers. The epoxy novalac type polymer can be an epoxy novalac polymer or a blend of water soluble, dispersible or emulsifiable epoxy polymer and novalac polymer or a blend of the epoxy novalac polymer and water soluble or dispersible or emulsifiable epoxy polymer or polyvinyl acetate polymer. Also, the aqueous treating composition can have a glass fiber lubricant present in an effective lubricating amount. The treated glass fibers have the dried residue of the aqueous treating composition, wherein the moisture content of the treated glass fibers is in the range of about 1 to about 10 weight percent and the amount of dried residue on the glass fibers is in the range of about 0.1 to about 2 weight percent of the treated glass fiber. The poly(oxyalkylene-oxyethylene) polyol copolymer generally has a molecular weight of greater than around 1500. The treated glass fiber strands are particularly suitable for reinforcing thermosetting polymers like vinyl ester polymeric matrices.
Abstract:
Brominated phosphoramidates of the structure ##STR1## wherein R.sup.1 and R.sup.2 are independently selected from the group consisting of hydrogen, chloro, bromo, and chloro or bromo substituted alkyl of from 1 to 8 carbon atoms;R.sup.3 is selected from the group consisting of hydrogen, alkyl of from 1 to 8 carbon atoms, hydroxy substituted alkyl of from 1 to 8 carbon atoms and chloro or bromo substituted alkyl of from 1 to 8 carbon atoms;R.sup.4 is independently selected from the group consisting of R.sup.3 and a group of the structure ##STR2## wherein R is selected from the group consisting of alkylene of from 2 to 8 carbon atoms; phenylene, biphenylene and dicyclohexylene; provided that at least one of R.sup.1 and R.sup.2 contains a bromine atom and at least one of R.sup.3 and R.sup.4 contains a replaceable hydrogen.The phosphoramidates of the present invention are useful to impart a flame retardant property to combustible materials.