A composite material comprising a plurality of polymer chains fixed to a base and swelled with a mixture which contains a salt and a hydrogen bond-donating compound and has a melting point maintained at 100° C. or less.

A composite material comprising a plurality of polymer chains fixed to a base and swelled with a mixture which contains a salt and a hydrogen bond-donating compound and has a melting point maintained at 100° C. or less.

The present invention relates to a low friction polymerizable composition, a prepolymer thereof, and a friction component material prepared using the same, and the low friction polymerizable composition according to the present invention includes a curing agent and a filler together with a phthalonitrile compound, and thus has an excellent low friction property as well as high heat resistance and excellent processability.

Polymer compositions for coating of metal surfaces including moieties that interact with a metal atom in the metal surface and optionally containing antifoulant moieties. These polymer compositions provide lubricious coatings for medical devices, anticorrosion coatings for metal components, and antifoulant coatings for marine components such as propellers. The polymer composition is synthesized in a safe manner in which the synthesis components are added to a synthesis vat and there is no need for filtration or removal of waste materials in any step including the consumer use. As such this invention provides an environmentally sound approach to composition synthesis, formulation development, and consumer use.

To provide a fluorinated ether compound, a fluorinated ether composition and a coating liquid capable of forming a surface layer excellent in initial water/oil repellency, fingerprint stain removability, abrasion resistance, light resistance and chemical resistance, an article having a surface layer, and a method for producing it.

A fluorinated ether compound represented by A-O(R.sup.f1O).sub.mR.sup.f2SO.sub.2N(R.sup.1)(R.sup.2), wherein A is a C.sub.1-20 perfluoroalkyl group, R.sup.f1 is a fluoroalkylene group, m is an integer of from 2 to 500, R.sup.f2 is a fluoroalkylene group, R.sup.1 is a monovalent organic group having at least one hydrolyzable silyl group, R.sup.2 is a hydrogen atom, a monovalent organic group or a monovalent organic group having at least one hydrolyzable group, and the total number of the hydrolyzable silyl group(s) in R.sup.1 and the hydrolyzable group(s) in R.sup.2 is at least 2.

The present invention relates to a low friction polymerizable composition, a prepolymer thereof, and a friction component material prepared using the same, and the low friction polymerizable composition according to the present invention includes a curing agent and a filler together with a phthalonitrile compound, and thus has an excellent low friction property as well as high heat resistance and excellent processability.

Polymer compositions for coating of metal surfaces including moieties that interact with a metal atom in the metal surface and optionally containing antifoulant moieties. These polymer compositions provide lubricious coatings for medical devices, anticorrosion coatings for metal components, and antifoulant coatings for marine components such as propellers. The polymer composition is synthesized in a safe manner in which the synthesis components are added to a synthesis vat and there is no need for filtration or removal of waste materials in any step including the consumer use. As such this invention provides an environmentally sound approach to composition synthesis, formulation development, and consumer use.

A composition for reducing friction or stiction of a surface is disclosed. The composition comprises at least one organosilane, at least one organophosphorus, or a combination of at least one organosilane and at least one organophosphorus. The composition further comprises at least one polymer. Methods of applying the composition to a surface are also disclosed. Non-limiting examples of surfaces to which the composition can be applied include metal, metal alloys, metal oxide, glass, ceramic, or plastic substrates, and combinations thereof. Articles comprising at least one surface having been treated with the composition are also disclosed. Non-limiting examples of such articles include windows, watches and watch bands, screens, monitors, high-touch surfaces, electronic products, housing for electronics, and combinations thereof. Such articles can also exhibit enhanced hydrophobicity and/or anti-corrosion properties compared to untreated articles.

A high-temperature and high-salt resistant hyperbranched lubricant for a water-based drilling fluid, and preparation and application thereof are provided, belonging to the technical field of oilfield chemistry. The preparation method includes the steps of: mixing tetraethyl orthosilicate (TEOS), diethanolamine (DEA), and triethanolamine (TEA) for a transesterification and polycondensation reaction to obtain highly reactive hyperbranched polysiloxane; adding an acrylamide (AM) monomer, an anionic monomer, and a polar ester monomer into deionized water to obtain a monomer solution; adjusting the pH of the monomer solution to 5-9, and then adding highly reactive hyperbranched polysiloxane; introducing nitrogen to remove oxygen, adding an initiator, and thermally initiating a polymerization reaction; and after the reaction is completed, vacuum-drying and crushing an obtained product to obtain the high-temperature and high-salt resistant hyperbranched lubricant for a water-based drilling fluid.

A composition for reducing friction or stiction of a surface is disclosed. The composition comprises at least one organosilane, at least one organophosphorus, or a combination of at least one organosilane and at least one organophosphorus. The composition further comprises at least one polymer. Methods of applying the composition to a surface are also disclosed. Non-limiting examples of surfaces to which the composition can be applied include metal, metal alloys, metal oxide, glass, ceramic, or plastic substrates, and combinations thereof. Articles comprising at least one surface having been treated with the composition are also disclosed. Non-limiting examples of such articles include windows, watches and watch bands, screens, monitors, high-touch surfaces, electronic products, housing for electronics, and combinations thereof. Such articles can also exhibit enhanced hydrophobicity and/or anti-corrosion properties compared to untreated articles.