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: This invention relates to storage-stable solid isocyanate compositions that are substantially crystalline at room temperature comprising the reaction products of organic isocyanates with substoichiometric quantities of 2-methyl-1,3-propanediol.This invention further to a method of using the solid isocyanate compositions of the invention in the preparation of polyurethane products.

Abstract: A process is described for the separation and recovery of isocyanate monomers from isocyanate concentrates which leaves a residue which is liquid and burnable. The process for the separation and recovery of isocyanate monomers from isocyanate concentrates formed in the production of isocyanates and comprising a volatile isocyanate monomer and by-products comprises the steps of:(A) preparing a mixture comprising(A-1) the isocyanate concentrate; and(A-2) an oil solution comprising;(A-2-a) a major amount of hydrocarbon oil, and(A-2-b) a minor amount of at least one carboxylic ester obtained by reacting(A-2-b-1) at least one substituted succinic acylating agent with(A-2-b-2) at least one alcohol of the general formulaR.sub.3 (OH).sub.M (I)wherein R.sub.

Abstract: The present invention is directed to a liquid, storage-stable isocyanate prepolymer having an isocyanate group content of from 10 to 30% by weight, prepared by reacting:i) a polyamine containing at least two aromatically bound primary amino groups prepared by hydrolyzing an isocyanate compound having an isocyanate group content of from 0.5 to 40% by weight, withii) an isocyanate mixture comprisinga) from 50 to 100% by weight of diphenylmethane diisocyanates of which from 3 to 50% by weight consist of the 2,2'- and 2,4'-isomers, andb) the balance being polyphenylpolymethylene polyisocyanates, with the proviso that if said mixture comprises from 95 to 100% by weight of diphenylmethane diisocyanate, at least 15% by weight of said diisocyanate consisting of the 2,2'- and 2,4'-isomers.

Abstract: The present invention relates to a coating composition which contains a one- or two-component binder and, in addition,a) 0.1 to 15.0% by weight, based on the weight of the binder, of at least one coupling agent based on a chemically modified, amorphous polyolefin having an average molecular weight of 10,000 to 100,000, a non-uniformity of 1.0 to 6.5, a chlorine content of 2.5 to 50% by weight and a total content of nitrogen, oxygen, sulfur and silicon, in the form of chemically incorporated functional groups, of about 2.5 to 15% by weight, andb) 2.5 to 50% by weight, based on the weight of the amorphous polyolefin, of a bisphenol derivative corresponding to the formula ##STR1## The present invention also relates to a process for coating plastic substrates with this coating composition and to the coated plastics obtained therefrom.

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: The present invention is directed to an aqueously dispersed, ambient temperature curable composition containing(a) an epoxy resin which is rendered water-dispersible by chemically incorporated emulsifiers and/or by being admixed with external emulsifiers and(b) an isocyanate-terminated prepolymer(i) which is rendered water-dispersible by chemically incorporated emulsifiers and/or by being admixed with external emulsifiers,(ii) which is prepared from a mixture containing a polyisocyanate and a compound having a molecular weight of at least 500 and at least two hydroxyl groups and(iii) wherein the isocyanate groups are blocked with a phenolic compound.The present invention is also directed to a process for preparing polyurethanes by reacting the above blends with polyamines at ambient or elevated temperature and to the polyurethanes produced therefrom.

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: The present invention is directed to a RIM process and an isocyanate-reactive mixture useful therein. The mixture comprisesi) a polyether having at least two isocyanate-reactive groups and a molecular weight of from 1800 to 12,000 in which at least 50% of the isocyanate-reactive groups are primary and/or secondary amine groups,ii) an amine-terminated chain extender, andiii) from 2 to 20 parts by weight per 100 parts by weight of components b) and c) of propylene carbonate.

Abstract: Thermoplastic molding compositions containing at least one member selected from among aromatic polycarbonate and aromatic polyestercarbonate resins were plasticized by incorporating therewith a small amount of a copolyetherester conforming to ##STR1## wherein x is about 2 to 15, n is about 3 to 10 and y is about 1 to 10. A and A' are end groups which may independently be a hydroxy group, a carboxy radical, a C.sub.1 -C.sub.8 alkoxy or a C.sub.6 -050249762 C.sub.10 aryloxy group. The compositions of the invention are characterized by their improved processability.

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: The present invention is directed to a novel mold release agent, a composition containing the mold release, and a method of use of the mold release. The mold release broadly comprises a zinc carboxylate and a specific salt of an amidine-group containing compound.

Abstract: A process for producing a molded product by reacting an organic isocyanate component with an isocyanate reactive component. If the isocyanate component is based on a prepolymer of an isocyanate and a fatty acid ester, then the isocyanate reactive component must contain a fatty acid. Alternatively, if the isocyanate component contains a fatty acid, then the isocyanate reactive component must contain a zinc carboxylate. The system will release from bare steel.

Abstract: The present invention is directed to a solid polyurethane composition having a glass transition temperature of from -20.degree. C. to 0.degree. C., having a Bayshore rebound of less than about 20, and having a Shore A hardness of less than 80.

Abstract: The present invention is directed to the discovery that relatively long chain polyols, which are typically used to produce flexible foams, can be used to produced closed cell rigid polyurethane foams.

Abstract: The invention relates to thermoplastic molding compositions comprising a polycarbonate resin which is rendered resistant to gamma radiation induced yellowing. It was surprisingly found that the incorporation in the resin of an effective amount of benzylic alcohol or its derivatized versions renders the composition resistant to yellowing. The composition of the invention is suitable for the preparation of molded articles having improved resistance to yellowing and to the formation of haze induced upon exposure to gamma radiation.

Abstract: The present invention is directed to an improved process for the production of polyurethane moldings by reacting a reaction mixture comprising (a) a polyisocyanate, (b) an isocyanate-reactive material, and (c) a chain extender and/or cross-linker, said reaction mixture being processed as a one-shot system by the RIM process at an isocyanate index of from about 70 to about 130. In the improvement, component (b) comprises a polyester polyol having a molecular weight of from about 840 to about 1500 and having the structure ##STR1## wherein X represents ##STR2## R" represents the residue of an aromatic anhydride or aromatic dicarboxylic acid,R"' represents hydrogen or methyl,p is a number of from 1 to about 5, andy is a number of from 1 to about 14.

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: The present invention is directed to a process for the production of polyurethane moldings by reacting a reaction mixture comprising(a) an organic polyisocyanate(b) a compatible polyol blend comprising(i) at least one polyether polyol having a hydroxyl functionality of from 2 to 8, and a molecular weight of from 350 to below 1800, and(ii) at least one hydroxyl functional organic material containing from 2 to 8 hydroxyl groups and having a molecular weight below 350, components (i) and (ii) being used in a weight ratio of component (b)(i) to (b)(ii) of from about 10:1 to about 1:10, and(iii) no more than 45% by weight based on the weight of component (b) of an active hydrogen containing compound having a molecular weight of 1800 or more,said reaction mixture being processed as a one-shot system by the RIM process at an isocyanate index of from about 70 to about 130.