Abstract: Terpolymer emulsions comprising (1) an .alpha.,.beta.-unsaturated carboxylic acid (2) an alkyl ester of an .alpha.,.beta.-unsaturated carboxylic acid, and (3) an amide of an .alpha.,.beta.-unsaturated carboxylic acid or styrene or a derivative thereof of the formula ##STR1## in which R.sub.2 is hydrogen, methyl or ethyl are useful as thickening agents, particularly in butadiene-styrene latices.
Type:
Grant
Filed:
February 18, 1977
Date of Patent:
December 5, 1978
Assignee:
GAF Corporation
Inventors:
Eugene S. Barabas, Andrew Klein, Dru W. Alwani
Abstract: Improved anti-static fabric softening compositions, that are obtainable from certain amphoteric surface active agents, are especially useful in processes for household clothes' drying without adversely affecting the rewetting or soil-release properties of the softened fabric.
Abstract: Unsaturated glycol diesters are prepared at high reaction rates, high degrees of conversion and high selectivity, by reacting a conjugated diene, a carboxylic acid and oxygen, in the presence of an improved active solid catalyst, in the liquid phase. The improved catalyst of the invention comprises palladium containing thorium as a promotor. In the preferred embodiment, butadiene and acetic acid are reacted with oxygen to produce the desired 1,4-diacetoxy-2-butene at high conversions and selectivity.
Abstract: In accordance with the present invention, there is provided herein an improved low pressure, stirred, catalytic process by which butynediol can be produced continuously at a high rate of production, under safe conditions, and without simultaneously forming an excessive amount of undesirable by-products. The process of this invention can be carried out by heating acetylene and formaldehyde, at relatively low temperatures as compared to other processes using supported catalysts, in the presence of a stirred aqueous slurry of a finely-divided complex cuprous acetylide catalyst prepared from a precursor containing greater than 20% and less than 35% by weight of copper, and 0-3%, preferably 2-3%, by weight of bismuth, as the oxides, on a magnesium silicate carrier.
Abstract: Insecticidal N-acyl-N-(N'-methylenepyrrolidonyl)dialkylanilines having the formula: ##STR1## where R.sub.1 and R.sub.2 are both lower alkyl, and R is alkyl, alkenyl or haloalkenyl.Are prepared by two-step process involving reaction of 2,5-dialkylaniline with N-methylolpyrrolidone followed by acylation.The compounds of the present invention show good insecticidal activity against the Mexican bean beetle.
Abstract: A continuous wet-laid process for making high-strength glass fiber mats is described. In the process, glass fibers of known quantity are fed directly into a water stream of given volume to form a flowing fiber slurry of predetermined fiber consistency. Immediately thereafter, the flow of the slurry is interrupted turbulently to form a uniform fiber dispersion. The dispersion then is conveyed quickly onto a moving mat-forming wire screen to form the desired mat. The water thus-removed is recirculated into the original stream to provide a continuous operation. The process may be used advantageously for making high-strength mats of relatively long glass fibers, which find utility in the manufacture of asphalt roofing shingles, and as backing sheets for vinyl flooring.
Type:
Grant
Filed:
March 3, 1977
Date of Patent:
October 3, 1978
Assignee:
GAF Corporation
Inventors:
Bertram Randall Ziegler, Edward J. Matteson
Abstract: The invention provides nematocide control diacylimide compositions which include compounds having the formula: ##STR1## where R and R' are selected from alkyl, alkenyl, haloalkyl and haloalkenyl having from 1-5 carbon atoms, being the same or different groups.The compositions of this invention show excellent agricultural nematocidal activity, and particularly, the control of endoparasitic and ectoparasitic worms, such as the root knot nematocide, which exist in the soil at some stage of their life cycles.The diacylimide compounds generally are prepared by reacting a suitable amide with an acyl halide. The acyl halide precursor may be prepared, if necessary, from the corresponding acid by reaction with a suitable halogenating agent, such as thionyl chloride. Similarly, a given amide may be readily prepared, for example, from the corresponding acyl halide by reaction with ammonia.
Abstract: There is provided herein an improved, more continuous, low pressure ethynylation process for the production of butynediol which comprises first continuously reacting formaldehyde and acetylene in a reaction zone at low pressures, in a stirred aqueous medium, in the presence of a finely-divided ethynylation catalyst, to form a reaction product mixture containing butynediol and catalyst slurry. Then the reaction product mixture is withdrawn and continuously and simultaneously filtered and concentrated to form two streams, a catalyst-free filtrate stream and a flowable, concentrated catalyst slurry stream, the latter being capable of immediate recycling to the reaction zone without further treatment. The filtrate stream containing the butynediol is available for purification and further operations.
Abstract: The invention provides broad spectrum fungicidal diacylimide compositions which include compounds having the formula: ##STR1## where R and R' are selected from alkyl, alkenyl, haloalkyl and haloalkenyl having from 1-5 carbon atoms, being the same or different groups.The compositions of this invention show excellent agricultural fungicidal activity, particularly against bean rust, rice spot, tomato blight and other agricultural pathogens.The diacylimide compounds generally are prepared by reacting a suitable amide with an acyl halide. The acyl halide precursor may be prepared, if necessary, from the corresponding acid by reaction with a suitable halogenating agent, such as thionyl chloride. Similarly, a given amide may be readily prepared, for example, from the corresponding acyl halide by reaction with ammonia.
Abstract: Poly(tetramethylene terephthalate)-polyether block copolymers having materially increased heat deflection temperatures and incorporating within the polymer chain in random distribution 1 percent to 7 percent by weight of the polyether, poly(tetramethylene ether glycol) or polyethylene oxide; the polyether being added to the reaction mixture in the course of the polymerization reaction.
Type:
Grant
Filed:
June 14, 1976
Date of Patent:
September 26, 1978
Assignee:
GAF Corporation
Inventors:
Armand E. Brachman, Ghazi Khattab, Edwin M. Smolin
Abstract: In accordance with the sought-after features of an improved process for the preparation of Dimilin, there is provided herein a process which comprises first extracting 2,6-difluorobenzamide from an aqueous acid solution with a selective solvent which is acid-stable and water-insoluble. The extract then is condensed in situ with p-chlorophenyl isocyanate at an elevated temperature to form the desired product. The selective solvent preferably has a boiling point at the reaction temperature, preferably about 120.degree.-170.degree. C. Finally, the product is crystallized from the selective solvent.
Abstract: The novel process of the invention comprises selectively chlorinating benzoyl chloride in the absence of a solvent to about 7-8% unconverted benzoyl chloride, and recovering the resultant 3-chlorobenzoyl chloride in high yield from the reaction product mixture. A feature of the process is that the ratio of 3-chlorobenzoyl chloride to 2,5-dichlorobenzoyl chloride by-product is maximized.
Abstract: Thickener compositions comprising an emulsion copolymer of vinylacetate monomer and a monoester of an unsaturated dicarboxylic acid monomer, such as the monoester of maleic acid, and a water-miscible organic liquid, are described herein.
Abstract: 2-Chloro-2,3,3-tribromo-1,4-butanediol and processes for producing same by reacting dibromobutenediol in a liquid medium with bromine and chlorine.
Abstract: The pattern of a room to be covered by a sheet vinyl or other sheet material is determined by using a roll of paper, which has pressure sensitive adhesive bands on both sides, each covered with a release paper. The paper is placed around the periphery of the room with a portion of the paper projecting up the wall. The paper is then affixed to the floor by removing the release paper from the adhesive on the underside of the paper, pressed into the intersections of the wall and floor and cut with a knife to conform to the periphery dimensions of the floor thereby creating a floor dimension pattern or template. The sheet vinyl or other sheet flooring material is then placed over the paper pattern or template in such a manner that it projects slightly up the wall. After it is laid out in this manner, the release paper is removed from the adhesive on the upper side of the paper pattern or template by picking up the sheet flooring from the paper pattern or template and pulling off the release strip.
Abstract: In accordance with the present invention, it has been found that 3-anilino-5-pyrazolones can be prepared in high yields by a multi-step process using available starting materials. In the first step of the process, an alkyl .beta.-alkoxy-.beta.-iminopropionate salt is reacted with a suitable alkanol to form an orthoester intermediate in situ. The orthoester then is converted in high yields to the corresponding imidic ester by condensation with an aniline while simultaneously removing alkanol from the reaction mixture to drive the equilibrium reaction to completion. In a preferred form of the invention, formation of the imidic ester is carried out in a high boiling solvent whose presence enables the condensation to be carried out effectively at a high temperature, and which facilitates distillation of the more volatile alkanol by-product from the reaction mixture at atmospheric pressure.
Abstract: An improved dielectric imaging member comprising a transparent dielectric substrate having a thickness of between about 75 - 175 micrometers, a conductive layer on said substrate and a dielectric material having a thickness of less than about 15 micrometers on said conductive layer. An imaging process is also provided comprising generating an electrostatic latent image on said dielectric imaging member and developing said image by contact with a developer material.
Abstract: Mononitrotrifluoromethyl diphenylethers having the formula: ##STR1## ARE PREPARED BY REACTING A CHLORONITROTRIFLUOROMETHYLBENZENE WITH A PHENOLATE.The compounds of the invention show good fungicidal and post-emergence herbicidal activity.
Abstract: A process for multi-color valley printing and embossing of thermoplastic sheets and the like is provided wherein the number of colors that may be printed on such sheets simultaneously with the embossing operation exceeds the number of different color inks utilized by printing such inks individually in certain area and by blending two or more of the different color inks to print additional colors in other areas. A plurality of such different color inks are applied to the surface of a rotatable embossing and printing roll in a manner such that certain discrete surface areas thereof receive individual layers of a single color ink and other discrete surface areas thereof receive overlapping layers of at least two different color inks.