Methods for producing proppants with a fluorinated polyurethane proppant coating are provided. The methods include coating the proppant particles with a strengthening agent, a strengthening agent, and a resin to produce proppants with fluorinated polyurethane proppant coating. Additionally, a proppant comprising a proppant particle and a fluorinated polyurethane proppant coating is provided. The fluorinated polyurethane proppant coating includes a strengthening agent, a strengthening agent, and a resin. The fluorinated polyurethane proppant coating coats the proppant particle. Additionally, a method for increasing a rate of hydrocarbon production from a subsurface formation through the use of the proppants is provided.

The invention relates to a crosslinkable fluorinated urethane compound having at least one ethylenically unsaturated functional group. Such compounds are useful as coatings additives such that, when the coating is applied to a substrate, the additive compound is allowed to first migrate to the surface and subsequently crosslink to form a durable oil-, dirt-, and water-repellent surface.

The invention relates to a crosslinkable fluorinated urethane compound having at least one ethylenically unsaturated functional group. Such compounds are useful as coatings additives such that, when the coating is applied to a substrate, the additive compound is allowed to first migrate to the surface and subsequently crosslink to form a durable oil-, dirt-, and water-repellent surface.

Disclosed are a process of producing a polyurethane foam product, a polyurethane foam product pre-mix, polyurethane foam product formulation, and a polyurethane foam product. The process of producing the polyurethane foam product includes contacting a halohydrin component with a polyurethane foam product pre-mix. The polyurethane foam product pre-mix includes the halohydrin component. The polyurethane foam product formulation includes a polyol component, an isocyanate component, and a halohydrin component. The polyurethane foam product is formed by the pre-mix having the halohydrin component.

A fluorochemical composition that includes one or more fluorochemical urethane compounds, a method of treating a substrate (e.g., a method for imparting water and oil repellency and antisoiling characteristics to a substrate), and an article having a fluorochemical composition coating thereon.

The invention relates to a crosslinkable fluorinated urethane compound having at least one ethylenically unsaturated functional group. Such compounds are useful as coatings additives such that, when the coating is applied to a substrate, the additive compound is allowed to first migrate to the surface and subsequently crosslink to form a durable oil-, dirt-, and water-repellent surface.

A surface protecting resin member includes a cured product of a composition containing an acrylic resin having a hydroxyl value within the range of 40 mgKOH/g to 280 mgKOH/g, a polyol having a hydroxyl value within the range of 40 mgKOH/g to 300 mgKOH/g, a multifunctional isocyanate, and a fluorotelomer alcohol represented by the following general formula CF.sub.3(CF.sub.2).sub.n(CH.sub.2).sub.mOH, where n is an integer of 1 or more and m is an integer within the range of 1 to 4.

A block copolymer of the formula R.sub.f-PEG-PAA is disclosed, where R.sub.f comprises a perfluoroalkyl group having at least 3 carbon atoms, bound to an ether oxygen atom directly or through a substituted or unsubstituted alkylene group, PEG is a poly(alkylene glycol) unit having a weight average molecular weight or number average molecular weight of from 1 to 20 kDa, and PAA is one or more poly([meth]acrylic acid) units having a total weight average molecular weight or number average molecular weight of from 0.3 to 10 kDa. A polymer mixture including the block copolymer, a co-hydrogel and a drug delivery vehicle including the polymer mixture, and methods of synthesizing the block copolymer, forming a sol-gel two-phase co-hydrogel, forming a drug delivery vehicle, and delivering a drug to a patient in need thereof are also disclosed.

The present invention relates to novel (per)fluoropolyether (PFPE) polymers, to a process for their manufacture and to their use as additives in coating compositions.

The invention relates to surface modifying macromolecules (SMMs) having high degradation temperatures and their use in the manufacture of articles made from base polymers which require high temperature processing. The surface modifier is admixed with the base polymer to impart alcohol and water repellency properties.