16
NEWS
EDITION
Vol. 19, No. 1 N e w du Pont Products*
F O U R new dyestuffs for use in the textile field have been introduced by the Dyestuffs Division of E . I. du Pont de Nemours & Co., Inc., Wilmington, Del. They have been designated as Polyform Blue R F (P. A. F.), Diagen Red Violet D R (Pat.), Sulfogene Brilliant Green 4GX Concentrated, and Sulfogene Bril liant Blue RCF. Three new types of Methacrol methacrylate resin emulsion finishing agent are announced by the Fine Chemicals Divi sion. Methacrol B E is a stiffening and bodying agent that is compatible with polyvalent metal ions and with cationic surface active agents. Methacrol N H is a finish for nylon hose which imparts snag resistance and a delustering finish. Methacrol SH is recommended for use either alone or in combination with Aridex W R and/or Aridex W P (Pat.) on New melamine plant of the American Cyanamid Co. silk hosiery. A new rayon fiber, with a high degree of xanthate have been prepared and articles permanent crimp, has been developed b y umbrella handles, novelty vases, and shoe of regenerated chitin have been described. the Rayon Department of the company. shanks. A diversified potential use for Plasticians are happily in tune with indus Lacking as yet a more formal title, it is Lucite is in the field of interior decorative try and find pleasure and profit in observ known by its laboratory designation, construction, including light fixtures and ing the nuances of commerce. "Fiber D " . Tests indicate that fabrics artistic paneling. Methyl acrylate pos containing Fiber D possess certain charac sesses high elasticity; the monomeric ma EDITOR'S N O T E . This discussion of I n dustrial Research in 1940 by William A. teristics now available only in wool. T h e terial readily interpolymerizes with other Hamor will be continued in the N E W S crimp, which gives bulk and loft to t h e unsaturated substances, such as acrylic EDITION for January 25, and will treat of yarns and the wool-like appearance and esters, styrene, and vinyl acetate. Study the work done in Canada, Brazil, Portugal, feel to the fabrics, is an inherent character of the conversion of lactic acid t o methyl France, Belgium, Netherlands, Great Britain, Denmark, Norway, Sweden, Fin istic ; if it is partially removed during proc acrylate has shown that, based on raw ma land, Germany, and other foreign countries. essing, it may be recovered by simple terial costs, this process cannot compete treatments. An outstanding characteris favorably with the synthesis from either tic is a smooth cross section, as contrasted ethylene or ethylene oxide. American Dangers of W a x from to the crenulated or ridged pattern of Cyanamid announced the large-scale standard rayons. This is claimed to en manufacture of thiourea and the develop Hydrofluoric A c i d Bottles able fabrics made of it t o shed dirt more ment of melamine resins (Melamac), Charles Edwards, Niagara Falls, Ν . Υ . effectively. As with other rayons, Fiber especially for laminating and surface coat ANALYSES in the metallurgicallabora-tory calling of D may be dyed for to taking brilliantsamples clear colors ings. Molding powders based on melahydrofluoric acid in the absence of nitric even in the lightest shades. mine-formaldehyde condensation prod acid, with or without other nonoxidizing ucts had previously been introduced in acids, and subsequent fuming and oxida Europe as Melopas (Switzerland) and tion with perchloric acid should be carried Ultrapas (Germany). Reichhold Semi-cals through carefully. At least one explosion Monsanto Formulates Pension is marketing melamine coating ma has been traced to the presence of wax terials under the name Super-BeckaPlan from the wax hydrofluoric acid bottle. mine; they are said to be especially well A FORMAL plan which will enable e m The hydrofluoric acid is easily contami adapted for "flash baking" at high tem ployees of Monsanto Chemical Co. t o nated when the bottle is opened b y peratures and for infrared baking. Resi retire with a dependable and comfortable puncturing with a hot wire. The molten nous Products is introducing a straight pension when they reach the age of 60 in wax disperses into small particles when it melamine resin and also a melamine resin the case of women, and 65 in the case of strikes the acid solution. Bottles of modified with urea resin for baking fin men, has been approved by stockholders. hydrofluoric acid for use with perchloric ishes. The amount of the pension when combined acid should be opened with extreme Polymeric methyl silicon oxides were with governmental pensions will approach caution and, if necessary, reserved for discussed by General Electric chemists. 50 per cent of average earnings for employ that use. Mazein is thought to have utility in the ees of long service earning less than $3000 production of plastics; it has been spun a year. into fibers, resembling wool, which have Optical Film Presented Employees receiving less than $250 a not yet been fully evaluated. A plastic month participate in t h e benefits of the formulation employing processed cotton P H E N O M E N O N of light and how it is harplan without cost, and those receiving seed hulls is said to yield molded articles nessed by optical instruments to serve more than $250 a month will have an op of exceptional strength and dielectric man is depicted in "Eyes of Science", portunity t o retire on a pension commen properties; a wallboard material from presented by Bausch & Lomb Optical Co. surate with their earnings upon payment hulls embodying a modification of this at a recent movie night of The American into the plan of 4.5 per cent of their earn plastic composition has been developed. Institute of the City of New York. T h e ings above $3000 a year. A l l eligible Aniline-bagasse and aniline-cacao shell film dramatizes optical theory and shows employees, both men and women, of plastics have been investigated. Uses for practical application in the plant. Contri Monsanto's domestic plants, offices, and manioc and cactus in the plastics industry butions to health, happiness, and progress subsidiaries are included under the plan. are being studied. Dispersions of chitin are reviewed.
