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Above Smoke biography, Above Smoke discography
The Inspectors of Elevators shall perform such duties as may be required of them by the Commissioner of Buildings, the rules and regulations of the Department of buildings or the ordinances of the city.The Smoke Inspector, before entering upon the duties of his office, shall execute a bond to the City of Chicago in the sum of ten thousand dollars, with sureties to be approved by the Mayor, conditioned upon the faithful performance of the duties of his office.RELIGION 3 SOCIOLOGY 4 PHILOLOGY 5 NATURAL SCIENCE 6 USEFUL ARTS 7 FINE ARTS 8 LITERATURE 9 HISTORY Each of these classes is again divided into nine divisions, with a tenth division for general matter, and each division is separated into nine sections.In excess of the said per diem allowance and other expenses provided for, shall be held by the treasurer as a special fund for meeting the expenses of said board, and the cost of an annual report of the proceedings of the State Board of Examiners of Architects.Vater Heating Apparatus f Ventilating and Steam Power Plants Telephone Main 2959 97 S.Page 16Greenwich and Rector Sts.Page 335Pleas Concrete Construction Co.Craue, MH Estate, (iU9 Security Bldg.REFRIGERATING AND ICE MAKING MACHINERY Far all purposes.ROOFS, BRIDGES, COLUMNS AND GIRDERS.The city electrician is authorized to execute and deliver in the name of the city of Chicago to any person or corporation affording facilities for ...URESCO MOST BEAUTIFUL, ECONOMICAL AND SANITARY FINISH MADE FOR ALL INTERIOR DECORATING Recommended by leading Architects and ...Page 338Dahlstrom Metallic Door Co.Refrigerating and Ice Making Machinery for all purposes.LIVE experience have made them so.WP NELSON COMPANY Contractors for PAINTING AND DECORATING In any part of the US or Canada CORRESPONDENCE INVITED WITH ARCHITECTS AND ...Page 22HARRY RUBENS, GLENCOE, ILL troy Caundry machinery Co, Limited) We are prepared to furnish estimates for Laundry Equipment for any sized plant from the ...Page 150BARRETT MANUFACTURING COMPANY New York, Chicago, Philadelphia.Boston, Cleveland, Cincinnati, Minneapolis, St.Page 26PHONE MAIN 1362 CHICAGO WORKS: PORTER, IND.PRESS BRICK IN STANDARD, ROMAN AND ORNAMENTAL SHAPES ENAMEL ...Page 76GIBBSBORO, NJ JOHN LUCAS 6 CO.Page 210Chicago Phone Monroe 525 St.FE PERKINS Columbia SKrc and Iron Manufacturers of dire, Iron and Brass Goods ...Page 14Belvedere, Baltimore and New Willard, Washington, DC Corn Exchange Bank Bid..Gty Investment, Hudson Terminal, Metropolitan Life and Singer, ...WORKS BAR IRON AND SOFT STEEL, FLATS, ROUNDS, SQUARES, ANGLES, ETC.Kimball, MN, Chamber of Commerce.Page 57Kimball, MN, Chamber of Commerce.Kimbell, EC, 201 Chamber of Com.Page 48SIT CHAMBER OF COMMERCE BiriLDirJQ 55 S.Klafter, David Saul, 103 E.Lehle, Louis, 103 Randolph St.Page 275Fibrous Plaster is plaster of Paris in a thin coat laid on canvas strained on framework.Explanation:
What type of cloud is that?Globemaster III, is seen on the right.The circular eyes of the above smoke angel are caused by
air spiraling off the plane's wings and are known as
wingtip vortices.Open fires in dwelling houses are a major source of the particulate material emitted to air as smoke.The main concern associated with particulates is their potential effect on human health, notably the respiratory system, as particles of small size can be inhaled into and deposited in the respiratory system and remain there for long periods of time.Legislation
Black smoke measurements were the main method used to assess ambient particulate matter (PM) levels in Ireland up to 2005.EEC (CEC, 1980) in which the values are specified for annual (April to March), winter (October to March), and daily reference periods.Dublin, Limerick and Cork monitoring networks from 1985 to 2005 are shown above.This reduction underlines the effectiveness of smoke control legislation introduced in the Greater Dublin area in 1990, which banned the marketing, sale and distribution of bituminous coal.This ban now covers Cork City (since 1995) Arklow, Drogheda, Dundalk, Limerick, Wexford (since 1998) Celbridge, Galway, Leixlip, Naas, Waterford (since 2000) Bray, Kilkenny, Sligo and Tralee (since 2003).Comment
A significant improvement in urban air quality is evident from the black smoke measurements.This shows the success of national regulatory measures such as the ban on the sale of bituminous coal in a number of cities and large towns.Images are available in PDF form when logged in.PPOLY(ALKOXYARYLOXYPHOSPHAZENE) ELASTOMERS3856713December, 1974Rose et al.The composition of claim 5 wherein said normally solid carboxylic acid is benzoic acid.The composition of claim 5 wherein said normally solid carboxylic acid is fumaric acid.The composition of claim 5 wherein said normally solid carboxylic acid is mellitic acid.C4 linear or branched alkoxy radical, said R1 and R2 substituted in any sterically permissible position on the phenoxy group; and (b) a normally solid carboxylic acid.BACKGROUND OF THE INVENTION 1.Field of the Invention This invention relates to elastomeric poly(aryloxyphosphazene) homopolymeric and copolymeric compositions, to flexible and semirigid foams produced from said homopolymeric and copolymeric compositions, and to a process for preparing these materials.These compositions exhibit excellent smoke suppressant properties as a result of having incorporated therein an effective amount of a normally solid carboxylic acid.The term "normally solid", as used herein, refers to the physical property of the smoke suppressant material, such being as a solid (crystalline, amorphous and the like) at ambient temperatures.Normally solid aliphatic, unsaturated aliphatic, aryl substituted aliphatic, cycloaliphatic, heterocycloaliphatic monocarboxylic acids, and mixtures thereof are also effective herein.It has been discovered that additions of the above smoke suppressants in from about 1 to about 10 percent by weight and preferably from about 1 to about 3 percent by weight based on the phosphazene content, reduce smoke generation by a significant amount.The terms percent and parts as used hereafter in this specification refer to percent and parts by weight unless otherwise indicated.Desirably, groups which sterically inhibit this reaction should be avoided.Absent the foregoing proviso, the selection of the various R 1 's and R 2 's will be apparent to anyone skilled in the art based upon this disclosure.The introduction of groups such as W into polyphosphazene polymers is shown in U.Where R 1 and R 2 are different, the ratio of a:b, and of (a+b):c c where units containing W are present in the copolymer, affects the processability, smoke production, glass transition temperature and a number of other properties of the compositions of this invention.These ratios also affect the ability to be foamed and the properties, such as the rigidity, or the resulting foams.The compounds must be heated for such a length of time that only a minor amount of unreacted charge material remains and a major amount of high polymer has been produced.Such a result is generally achieved by following the conditions of temperature and contact time specified above.It is preferred that the thermal polymerization be carried out in the presence of an inert gas such as nitrogen, neon, argon or a vacuum, e.The use of such a gas, however, is not critical.The polymers resulting from the thermal polymerization portion of the process are in the form of a polymeric mixture of different polymers of different chain lengths.For example, the recovered media may contain minor amounts of a polymer where n is 20 and major amounts of polymer where n is 2000.These conditions are, of course, utilized in order to obtain the most complete reaction possible, i.The above esterification step is carried out in the presence of a solvent.Examples of suitable solvents include diglyme, triglyme, tetraglyme, toluene and xylene.The amount of solvent employed is not critical and any amount sufficient to solubilize the chloride polymer mixture can be employed.It is preferred, however, that at least one of the charge materials be used as a solution in a compound which is a solvent for the polymeric mixture.The combined amount of the mixture of alkali metal or alkaline earth metal compounds employed should be at least molecularly equivalent to the number of available chlorine atoms in the polymer mixture.However, it is preferred that an excess of the metal compounds be employed in order to assure complete reaction of all the available chlorine atoms.Examples of materials which can be used for this purpose include hexane, diethyl ether, carbon tetrachloride, chloroform, dioxane, methanol, water and the like.The precipitation may be conducted at any temperature, however, it is preferred that room temperature be employed.The novel high molecular weight homopolymer or copolymer mixture may then be recovered by filtration, centrifugation, decantation or the like.The polymers may be used to prepare foamed products which produce low smoke levels, or essentially no smoke when heated in an open flame.The foamed products may be prepared from filled or unfilled formulations using conventional foam techniques with chemical blowing agents, i.While the above are preferred formulation guidelines, obviously some or all of the adjuvants may be omitted, replaced by other functionally equivalent materials, or the proportions varied, within the skill of the art of the foam formulator.The time of heating is dependent on the size and shape of the mass being foamed.As indicated, inert, reinforcing or other fillers such as alumina trihydrate, hydrated silicas or calcium carbonate can be added to the copolymer foams and the presence of these and other conventional additives should in no way be construed as falling outside the scope of this invention.These copolymers are also useful for preparing crosslinked foams which exhibit significantly increased tensile strengths over uncured foams.These copolymers are often crosslinked in the presence of inert, reinforcing or other fillers and the presence of these and other conventional additives are deemed to be within the scope of this invention.The following examples are set forth for purposes of illustration only and are not to be construed as limitations of the present invention except as set forth in the appended claims.All parts and percentages are by weight unless otherwise indicated.Copolymers were prepared by adding the polymer to a solution containing a 1:1 mole ratio of the two desired sodium aryloxide salts.After the reaction was completed, the polymers were precipitated into an excess of methanol, were washed for 24 hours in methanol, and finally were exhaustively washed with distilled water.The polymers prepared and their glass transition temperatures are listed in the following table.Analytical data were in agreement with the tabulated empirical formulas.Determined by differential scanning calorimetry.No reduction in smoke generation.The following examples set forth phosphazene homopolymeric and copolymeric foam compositions containing varying amounts of the normally solid carboxylic acid smoke suppressing agents.Samples were tested using the flaming test mode.An average Dm(corr) value of 450 as determined in the NBS Smoke Density Chamber has been adopted as a regulation value by the U.Department of Health, Education and Welfare, see HEW Publication No.Generally, NBS smoke values of 450 or less are normally required in those fire or code regulations restricting smoke evolution.Previous Patent (Polymeric acid salts...
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