Abstract: This disclosure deals with novel formulations to create highly durable flexible hydrophobic, superhydrophobic, oleophobic and/or superoleophobic surfaces. The formulations of this invention can be applied by dip, spray and painting processes.

Abstract: This disclosure deals with novel formulations to create highly durable flexible hydrophobic, superhydrophobic, oleophobic and/or superoleophobic surfaces. The formulations of this invention can be applied by dip, spray and painting processes.

Abstract: Coating compositions for the preparation of superhydrophobic (SH) and/or oleophobic (OP) surfaces that employ low amounts of volatile organic compounds are described. Also described are the resulting coatings/coated surfaces and methods of their preparation. Such coatings/surfaces have a variety of uses, including their ability to prevent or resist water, dirt and/or ice from attaching to a surface.

Abstract: The present disclosure provides methods, compositions and systems for drying coal fines.

Abstract: Coating compositions for the preparation of superhydrophobic (SH) and/or oleophobic (OP) surfaces that employ low amounts of volatile organic compounds are described. Also described are the resulting coatings/coated surfaces and methods of their preparation. Such coatings/surfaces have a variety of uses, including their ability to prevent or resist water, dirt and/or ice from attaching to a surface.

Abstract: This disclosure deals with novel formulations to create highly durable flexible hydrophobic, superhydrophobic, oleophobic and/or superoleophobic surfaces. The formulations of this invention can be applied by dip, spray and painting processes.

Abstract: The present disclosure provides methods, compositions and systems for drying coal fines.

Abstract: This invention relates to high performance RIM (reaction injection molded) poly(urethane)urea elastomers, and to a process for their production. These elastomers comprise the reaction product of an allophanate-modified diphenylmethane diisocyanate prepolymer having an NCO group content of about 5 to about 30%, with an isocyanate-reactive component comprising a high molecular weight amine-terminated polyether polyol, an aromatic diamine chain extender, and, optionally, a chain extender or crosslinker selected from the group consisting of aliphatic amine terminated polyether polyols and aliphatic hydroxyl terminated polyether polyols, optionally, in the presence of an internal mold release agent, a surfactant and a filler.

Abstract: This invention relates to high performance RIM (reaction injection molded) poly(urethane)urea elastomers, and to a process for their production. These elastomers comprise the reaction product of an allophanate-modified diphenylmethane diisocyanate prepolymer having an NCO group content of about 5 to about 30%, with an isocyanate-reactive component comprising a high molecular weight amine-terminated polyether polyol, an aromatic diamine chain extender, and, optionally, a chain extender or crosslinker selected from the group consisting of aliphatic amine terminated polyether polyols and aliphatic hydroxyl terminated polyether polyols, optionally, in the presence of an internal mold release agent, a surfactant and a filler.

Abstract: A novel polyisocyanate which is liquid and room temperature stable and has an isocyanate group content of from 10 to 30% by weight is prepared by reacting:a) an isocyanate mixture of 4,4'-diphenylmethane diisocyanate, 2,4'-diphenylmethane diisocyanate, and an amount of an isocyanate based upon diphenylmethane diisocyanate having an isocyanate functionality of more than 2, such that the total isocyanate mixture a) has an average isocyanate functionality of from 2.02 to 2.50, andb) one or more polyols selected from the group consisting of1) diols having molecular weights of from 1000 to 5000,2) triols having molecular weights of from 1000 to 6000, and3) mixtures thereof.When used in a RIM process, parts are produced which have excellent low temperature impact properties.

Abstract: A RIM process utilizing a reaction product of an MDI containing from 6 to 50% by weight of the 2,4'-isomer and a polypropylene glycol as the isocyanate reactant results in a molded product having excellent low temperature impact properties.

Abstract: This invention relates to a reaction injection molding process for preparing a molded product by reaction of a mixture of(a) an organic polyisocyanate;(b) one or more compounds containing at least two isocyanate-reactive groups;(c) about 2 to about 20% by weight, based on the weight of the molded product, of rigid fibers having a diameter of from about 5 to about 10 micrometers and a length ranging from the diameter of the fiber up to about 2 millimeters, preferably in admixture with component (b);and, optionally,(d) an inert gas dissolved in at least one of components (a) or (b) in an amount sufficient to produce a molded product having a density of at least 0.80 g/cm.sup.3 ; and(e) up to 15% by weight, based upon the weight of the molded product, of a filler other than rigid fibers (c).

Abstract: This invention relates to a reaction injection molding process for preparing a molded product by reaction of a mixture of(a) an organic polyisocyanate;(b) one or more compounds containing at least two isocyanate-reactive groups;(c) about 2 to about 20% by weight, based on the weight of the molded product, of rigid fibers having a diameter of from about 5 to about 10 micrometers and a length ranging from the diameter of the fiber up to about 2 millimeters, preferably in admixture with component (b);and, optionally,(d) an inert gas dissolved in at least one of components (a) or (b) in an amount sufficient to produce a molded product having a density of at least 0.80 g/cm.sup.3 ; and(e) up to 15% by weight, based upon the weight of the molded product, of a filler other than rigid fibers (c).

Abstract: Products made using the RIM process where the reaction mixture contains an acidic release agent have improved green strength when the reaction mixture also contains a peralkylated polyalkylene polyamine.

Abstract: It has been found that the use of specific expanded organic microspheres greatly improve the RIM process by (i) significantly enhancing the blowing action of air and/or nitrogen, (ii) providing for uniform density of the molded part, (iii) allowing for the reduction of internal mold pressures, (iv) substantially eliminating surface defects, (v) allowing for a significant reduction in density in the molded product, (vi) allowing for a substantial increase in the amount of air and/or nitrogen that can be dissolved in the isocyanate-reactive component, and (vii) significantly reducing shrinkage in the molded part.

Abstract: The mold broadly consists of an upper and lower mold part. The parts define a mold cavity when the mold is in the closed position. A channel is provided in one of the parts, with the channel completely surrounding the cavity. One upper edge of the channel forms at least a portion of the outer edge of the mold cavity. The channel is at least partially filled with an elastomeric material. A shear plate is attached to the other part in a location opposite the channel. When the mold is in the closed position, the shear plate enters the channel, presses against the elastomeric material and presses against the outer edge of the mold cavity. The shear plate is also provided with one or more tapered slots which allow gases to escape from the mold cavity when the mold is in the closed position.

Abstract: The present invention is directed to a process for producing a molded product comprising(A) reacting:(i) an organic polyisocyanate having an isocyanate group content of from 5 to 45% by weight, preferably from 15 to 35% by weight, and most preferably from 20 to 35% by weight, prepared by reacting:(a) an organic di- and/or polyisocyanate, and(b) an active hydrogen containing fatty acid ester prepared by reacting an alcohol or polyol with an aliphatic, saturated or unsaturated fatty acid, said ester being characterized in that at least one aliphatic acid which contains more than 8 carbon atoms is built into the molecule, said ester further characterized as having an acid number of from 0 to 100 and a hydroxyl number of from 0 to 150 with at least one of said numbers being greater than zero, said ester having an average molecular weight of from 500 to 5000,(ii) an isocyanate reactive component comprising:(a) from about 0.