Abstract: A new trim material is disclosed comprising a fire resistant fabric having a weight of at least about 85 g/m.sup.2 and characterized by:(A) A fluorescent coating;(B) a flexible, drapable, stretchable, retroreflective sheeting covering a portion of the fluorescent coating of part (A);(C) the combined thickness of the fluorescent coating and any flammable part of the retroreflective sheeting being about 5 to 60% of the thickness of the fire resistant fabric.This trim material is useful for such articles such as firemen's coats in that it meets most of the same requirements for flame retardance as are applied to the outer shell material itself. Specifically, it retains its reflectivity in a laboratory oven test at 260.degree. C. for five minutes and retains the color of the fluorescent portion at 204.degree. C. in a laboratory oven for five minutes. The fabric properties of strength, fire retardancy, and resistance to heat are preserved in the composite trim material.

Abstract: A thread is provided which comprises a polymeric material onto which has been fixed a symbol or repeating multiple symbols which are detectable and readable under magnification. When incorporated into garments or garment labels, this thread is useful in identifying the true manufacturer of the goods, and the absence of such threads would help in the detection of counterfeit goods.

Abstract: A fire retardant, intumescent composition is provided which comprises a mixture of alkali metal silicate, represented by the formula M.sub.2 O:xSiO.sub.2 in which M is the alkali metal; an oxy boron compound selected from boric acid or salts of Group I and II elements; and water; in which the weight ratio x ranges from about 1.5 to about 4, the molar ratio of boron to M is between 0.2 and 0.9, and the water comprises about 5 to 15 weight percent of the total composition. These compositions are made by mixing an alkali metal silicate sol with a borate (e.g., boric acid) to form a gel which is dried in an oven. The resulting residue is crumbled to granules. A fire retardant which is relatively insoluble and has improved stability to long term exposure to water and humidity is formed. Various parameters (e.g.

Abstract: Flexible, raised pavement markers having improved shapes which take advantage of relief cuts and ribs to increase the durability and retention of reflectivity. One embodiment of such a marker comprises: a flexible body made of sponge rubber and having a raised surface connected to a base portion through a connecting portion, a reflective film attached to the raised portion, and a pressure-sensitive adhesive on the base. Relief cuts along the back of the connecting portion provide a bending or folding action whereby the reflective film is made to lie flat when a tire passes over the marker, thus protecting the reflective sheeting from scuffing.

Abstract: A magnetic recording medium having a magnetizable metallic thin-film layer of perpendicular anisotropy can be produced at commercially viable production rates by electrodepositing cobalt, hypophosphite, and preferably also nickel ions at a plating bath temperature of 50.degree.-80.degree. C. and a plating current density of at least 20 mA/cm.sup.2.

Abstract: An improved design for a compact floppy disk cartridge is provided in which the wiping fabric is prevented from moving and causing stringers out the head access window. This is accomplished by providing ribs on both halves of the cartridge case which, together with raised peripheral edges on the case, provide an irregular shape. The wiping fabric is cut to a shape which conforms with the outline provided by the combination of ribs and peripheral edges. Thus, the wiping fabric is keyed into the space defined by the ribs and peripheral edges.Other improvements embodied in this design are: a compression return spring for a sliding shutter which is substantially completely covered by the shutter (thus preventing debris from interfering with the spring); and temporary interference fit closure of the cartridge shells to permit non-destructive testing.

Abstract: Diphenylamine is reacted with styrene in the presence of a base modified acid clay catalyst to improve yields of the p-styrenated diphenylamine (DPA), particularly the distyrenated DPA. Fuller's Earth exemplifies the clay, while KOH exemplifies the base. The highly p-styrenated diphenylamine is an active antioxidant with low volatility.

Abstract: Processes for synthesizing para-nitrodiphenylamines whereby a para-halonitrobenzene is reacted with an aromatic amine selected from the group consisting of formanilides and anilines (substituted and unsubstituted) in the presence of a basic material (to remove acid) are improved by the incorporation of certain select solubilizing agents into the reaction medium. These solubilizing agents are linear, branched, or cyclic polyethers. Some of the resulting advantages are: higher reaction yield, less by-products, and a faster reaction.

Abstract: Polymers are reacted with antioxidants such as N-(4-anilinophenyl) methacrylamide in the presence of a free radical initiator system of the azo, azonitrile or Redox type.

Abstract: An aqueous emulsion of a water insoluble liquid and a water insoluble solid is prepared by first forming a high viscosity emulsion of the liquid in water and then slowly adding the solid to the emulsion with low speed agitation, thereby forming a concentrated co-emulsion which can be diluted to the desired activity.

Abstract: Natural and synthetic rubber can be reclaimed by the use of a reclaiming oil having a molecular weight between 200 and 1000 and comprised of a mixture of substituted benzene compounds, such as alkyl benzenes and alkylated indanes, which mixture has an initial boiling point greater than or equal to 240.degree. C. These may be the only reclaiming oils charged to the digester, or they may be used to replace any volatile reclaiming oils used in the older processes. The resulting reclaimed rubber gives no greater contact or migratory stain then reclaimed rubber made with known non-staining oils, and much less oil is lost during the venting or blow-down of the digester.

Abstract: An improvement in a process for making a rubber adherable wire, wherein a steel wire is plated with brass and then drawn through dies to reach the desired diameter, comprises coating the brass plated wire with 5.times.10.sup.-5 to 50.times.10.sup.-5 milligrams of zinc per square millimeter of coating surface prior to drawing. The product made by the process is useful for reinforcing rubber articles such as tires.

Abstract: 2-Mercapto phenol and/or 4-mercapto phenol are reacted with a compound selected from olefins, alcohols, and organic halides for example, styrene and isobutylene, to form (hydrocarbyl) thio phenolic antioxidants such as 2,6-di-tert. butyl-4-(tert.butylthio) phenol and 2,6-di(.alpha.-phenylethyl)-4-(.alpha.-phenylethylthio)phenol.

Abstract: Copolymers of at least two acrylate monomers such as isobutyl methacrylate and 2-ethylhexyl acrylate, an organic acid or acid anhydride, and N-vinyl-2-pyrrolidone are prepared by emulsion polymerization. The polymer is then coagulated and dried, and dry resin is mixed with a water miscible coalescing solvent and a volatile amine. The amine-treated resin is water reducible and when used as a coating resin produces coatings of unusual water resistance and adhesion to metal surfaces.

Abstract: Acetylenic hydrocarbons are removed from a C.sub.4 - or C.sub.5 - hydrocarbon mixture containing a C.sub.4 - or C.sub.5 - diolefin respectively. The feedstock (e.g. a C.sub.4 - or C.sub.5 - cut from an ethylene plant) is extractively distilled to remove paraffins and mono-olefins in the raffinate, using acetonitrile (ACN), dimethyl formamide (DMF), furfural, acetone, dimethylacetamide or N-methyl-2-pyrrolidone mixed with 0-12 weight percent water as the extraction solvent. The bottoms from this first extractive distillation is subjected to a second extractive distillation in which virtually acetylenes-free solvent is used. Isoprene is withdrawn as the distillate with substantially reduced acetylenes content. The bottoms of the second extractive distillation is split three ways. Two streams are handled conventionally (recycle and heavies removal). The third is stripped free of acetylenes so that it may be used as solvent in the second extractive distillation.

Abstract: An aqueous alkaline dispersion of a rubber latex and dihydroxy-phenol-aldehyde resins consisting essentially of resorcinol-aldehyde resins and catechol-aldehyde resins is useful in forming an adhesive bond between reinforcing materials such as nylon and rubber compounds. It is essential that the catechol-aldehyde resin be made separately from the resorcinol-aldehyde resin with which it is later mixed in solution. The dispersions of this invention result in improved aged adhesion and lower fabric stiffness than the older resorcinol-formaldehyde latex dispersions.

Abstract: Copolymers of at least two acrylate monomers such as isobutyl methacrylate and 2-ethylhexyl methacrylate, an organic acid or acid anhydride, and N-vinyl-2-pyrrolidone are incorporated into water reducible coating compositions typified by the following general formulation:______________________________________ Parts by weight ______________________________________ Resin 20 - 30 Amine 1 - 3 Defoamer .2 - .5 Water soluble solvent 10 - 11 Water insoluble solvent 2 - 4 Water 45 - 60 ______________________________________The coating compositions of the above recipe yield clear coatings with good adhesion and water resistance.

Abstract: N,N'-disubstituted-p-phenylenediamines, wherein one of the substituents is a R-thiomethylphenyl moiety, are produced by a reaction of thiols, formaldehyde, and an N-phenyl-p-phenylenediamine in the presence of an acid. These compounds are antioxidants and antiozonants in rubber compounds.

Abstract: Hydroquinone having a purity greater than 99 percent is isolated through an aqueous recovery scheme compatible with the methyl isobutyl ketone based diisopropylbenzene dihydroperoxide isolation process. Hydroquinone, from the Hock-splitting reaction, is extracted into water while the impurities are concentrated in a distillation tower. Phase separation of the distillation tower bottoms affords an efficient separation of the hydroquinone from the organic impurities. Concentration, crystallization, and solid liquid separation (centrifugation) of the aqueous phase yields a wet hydroquinone cake which, upon recrystallization from acetone, yields high purity hydroquinone.

Abstract: A process whereby photograde quality hydroquinone can be separated from the reaction mixture produced by a rearrangement of p-diisopropylbenzene dihydroperoxide, which process comprises the steps of (1) subjecting the mixture to hydrogenation to remove color; (2) concentrating the colorless solution; (3) adding a solvent to the concentrated mixture which dissolves impurities but which causes the hydroquinone to precipitate; and (4) separating the hydroquinone from the supernatant liquid in step (3).