Abstract: A dust free zone is created in a granulator by including a dust barrier in the pan of the granulator in a position such that the pan is divided into two sections. The inlet for feeding material to be granulated is located in one section of the apparatus and the discharge outlet is located in the other section. This device makes it possible to conduct a granulation process on a continuous basis without interruption and without exposure of workers to potentially hazardous dust.

Abstract: Rigid foams containing urethane and isocyanurate groups are made by reacting a polyisocyanate with a compound containing at least two isocyanate reactive hydrogen atoms in the presence of an aqueous solution of alkali metal carboxylate in accordance with known techniques. The aqueous alkali metal carboxylate solution has an alkali metal carboxylate content of from about 10 to about 50% by weight. The alkali metal carboxylates are preferably alkali metal acetates such as potassium acetate. This process is carried out at an index above 150. The product foams are particularly useful as insulating materials.

Abstract: Rigid substantially closed cell foams are made by reacting an organic isocyanate with a mixture of high molecular weight polyols in the presence of water, a catalyst and other optional materials such as chain extenders, crosslinking agents and flameproofing agents. The reactants are used in quantities such that the isocyanate to hydroxyl group index is from about 90 to about 150. The mixture of high molecular weight polyols is composed of (1) a polyester having at least two hydroxyl groups and an OH number greater than 150 and/or a polyether having at least two hydroxyl groups and an OH number greater than 200 and (2) a polyether having at least two hydroxyl groups and an OH number below 100. The foams produced in accordance with this process are useful as insulating materials and as structural reinforcing materials.

Abstract: A dihalobenzenoid compound is reacted with a dihydric phenol containing an azo group in the presence of a base, an organic solvent and an azeotrope former. Dihydric phenols which do not contain azo groups may also be included in the reaction mixture. This reaction is generally carried out at a temperature of from about 20.degree. to about 250.degree. C. under an inert atmosphere. The polyether obtained is represented by the formula[--O--[E--O].sub.z --E'].sub.x [O--E"--O--E'--].sub.yin which E, E', E", x, y and z have the meaning specified herein.

Abstract: The present invention is directed to the use of a mixture of specific chlorofluorocarbons and specific hydrocarbons in the production of rigid, closed cell foams.

Abstract: A device for administering antigenic material to a horse intranasally. This device is composed of a hollow tube and a blocking device. The hollow tube is long enough to reach the tonsilor tissue of a horse. This tube has a sealed end and a tapered open end. At least one opening, preferably openings along the length of this tube are positioned in a manner such that antigenic material which exits through them will reach the tonsilor tissue of the horse. The blocking device sits on the hollow tube at the point where the tapering of the open end begins. A syringe containing antigenic material is positioned at the tapered open end of the hollow tube and the antigenic material is then released in the form of small droplets on the tonsilor tissue of the horse.

Abstract: A device for recoring soil samples composed of a device for advancing a soil sample, a soil sample assembly, a cutting tube and a chamber for receiving the soil sample as it exits the cutting tube. The cutting tube has a diameter which is smaller than that of the original soil sample which is to be recored.

Abstract: Open-celled, elastic, flexible polyurethane foams are made without using a chlorofluorocarbon blowing agent. A polyisocyanate is reacted with a polyether in the presence of water and from about 0.1 to abour 10% by weight (based on polyether) of an organic blowing agent selected from dicarbonic acid alkyl esters, dicarbonic acid cycloalkyl esters, dicarbonic acid benzyl esters and combinations thereof. Optional starting materials include catalysts, chain lengthening agents, emulsifiers and other commonly used additives.

Abstract: The present invention is directed to a reactive mixture for use in preparing a flexible polyurethane foam and to the foams produced therefrom. The reactive mixture broadly comprises an isocyanate reactive composition comprising:A) from more than 0 up to 3 parts by weight per 100 parts by weight of components B) and C) of an amine of the formula:H.sub.2 N--R--NH.sub.2where R is a C.sub.3 to C.sub.10 straight or branched alkylene group or a C.sub.4 to C.sub.15 alicyclic group,B) from more than 0 up to 40% by weight of a relatively high molecular weight compound containing at least two aromatically bound primary amine groups, andC) from 60 to less than 100% by weight of one or more polyether polyhydroxyl compounds having hydroxyl functionalities of from 2 to 3 and molecular weights of from about 1000 to about 10,000, the percents by weight of component B) and component C) totalling 100%.

Abstract: Annoying insects are controlled by attaching an insect control device to the body of the animal to be treated. The insect control device is a molded article, preferably in the form of an ear tag, which has been formed from a powder mixture of coumaphos, polyvinyl chloride and a plasticizer. The coumaphos is generally used in an amount such that from about 5 to about 30 wt % of the device is coumaphos. Other materials such as lubricants, pigments, stabilizers, etc. may also be included in minor amounts. The device may be formed by any appropriate technique but injection molding has been found to be particularly advantageous.

Abstract: This invention relates to a process for the preparation of polyurethane foams comprising reacting polyisocyanates with compounds containing at least two active hydrogen atoms and having a molecular weight of 400 to 10,000 selected from polymer-modified polyols and polyols containing predominantly primary hydroxyl groups, in the presence of water and/or organic blowing agents, catalysts, and flameproofing agents having the formula ##STR1## in which R.sup.1 and R.sup.2 are independently hydrogen or C.sub.1 -C.sub.4 alkyl;X is --(CH.sub.2).sub.n -- wherein n is an integer of from 0 to 5 (preferably 0 or 1), --CH.dbd.CH--, a branched alkylene group, an arylene group, or (NH).sub.m wherein m is 1 or 2;Y is --CN or ##STR2## wherein R.sup.1 and R.sup.2 are as defined above or both R.sup.2 together form a bond.

Abstract: An infrared source suitable for use as a remote source for infrared interferometer spectrometers. This device is composed of a heat source, a black body radiating element and a concave reflector. A support to maintain the heat source and black body radiating elements in proper position is also preferably included. The device of the present invention enhances the accuracy and sensitivity of gas sensing devices based upon measurement of background infrared radiation, and allows the remote infrared source to be used in locations in which ignitable materials may be present.

Abstract: A vaccine composition for animals susceptible to infection by canine distemper virus. The vaccine comprises a small but immunologically effective amount of an inactivated canine distemper virus in combination with a non-toxic pharmaceutically acceptable immunologic adjuvant. A preferred method of inactivation of canine distemper virus by either exposure of the virus to an inactivating effective amount of binary ethyleneimine or alternatively exposure of the virus to long wavelength ultraviolet light in the presence of a furocoumarin.

Abstract: A particular area or areas are monitored for the presence of gaseous materials, particularly pollutants by analyzing background infrared radiation present in the selected area with a spectrometer and making the results of this analysis available in a form understandable to the person or device monitoring the area for the presence of specified gaseous materials. The results of the spectrometric analysis may, for example, be displayed on a video unit or they may be printed. Apparatus useful in the practice of this invention generally includes an interferometer of the Michaelson-Morely type having specific optical characteristics, a sensitive infrared detector, electronic data processor, and a device which records and/or displays the results of the determination(s).

Abstract: A continuous multistage process for separating a partially water soluble organic component from a slurry containing an insoluble solid, a partially water soluble organic component and optionally water. In this process, the slurry is continuously fed to a tower or column equipped with a suitable vapor/liquid contact device. Energy is applied at a point below the vapor/liquid contact device. Vapors containing the partially soluble organic component exit the tower or column overhead and the inorganic solid is recovered at the bottom of the tower or column. This application of distillation technology to slurries is particularly advantageous in that a more efficient separation of that solid material from the partially soluble organic component is obtained. The improved separation efficiency can be utilized to either lower separation cost and/or to affect a more complete separation in order to obtain a solid material with a lower residual amount of the organic component.

Abstract: A vaccine composition for animals susceptible to infection by canine distemper virus. The vaccine comprises a small but immunologically effective amount of an inactivated canine distemper virus in combination with a non-toxic pharmaceutically acceptable immunologic adjuvant. A preferred method of inactivation of canine distemper virus by either exposure of the virus to an inactivating effective amount of binary ethyleneimine or alternatively exposure of the virus to long wavelength ultraviolet light in the presence of a furocoumarin.

Abstract: A vaccine composition for animals susceptible to infection by canine distemper virus. The vaccine comprises a small but immunologically effective amount of an inactivated canine distemper virus in combination with a non-toxic pharmaceutically acceptable immunologic adjuvant. A preferred method of inactivation of canine distemper virus by either exposure of the virus to an inactivating effective amount of binary ethyleneimine or alternatively exposure of the virus to long wavelength ultraviolet light in the presence of a furocoumarin.

Abstract: A process for the preparation of homogeneous and cellular polyurethane plastics by the reaction of(a) organic polyisocyanates;(b) compounds containing at least 2 Zerewitinoff-active hydrogen atoms and having molecular weights of from 400 to 10,000;(c) chain extenders, and, optionally, additional(d) short-chained compounds containing at least 2 Zerewitinoff-active hydrogen atoms and having a molar mass of from 32 to 400, as well as, optionally,(e) catalysts, blowing agents and other known additives,is described, which is characterized in that 1,4-3,6-dianhydro-hexites, preferably 1,4-3,6-dianhydro-D-sorbitol and/or 1,4-3,6-dianhydro-D-mannitol, optionally mixed with lower molecular weight compounds, preferably with polyols having a molecular weight of from 62 to 400, particularly preferably butane diol-1,4 are used as the chain extenders. The new chain extenders produce high quality elastomers and foams.