Patent classifications
C09D5/1637
Stain repellent compositions and applications thereof
The present invention provides fluorinated compounds as well as dispersions of the fluorinated compounds. The fluorinated compounds described herein, in some embodiments, can be applied substrates such as textiles, including carpet and other floor coverings.
Non-fouling, anti-microbial, anti-thrombogenic graft—from compositions
Substrates, optionally coated with an undercoating layer, having grafted there from one or more non-fouling materials are described herein. The non-fouling, polymeric material can be grafted from a variety of substrate materials, particularly polymeric substrates and/or polymeric undercoating layers. The graft-from techniques described herein can result in higher surface densities of the non-fouling material relative to graft-to formulations. Graft-from methods can be used to produce covalently tethered polymers. The compositions described herein are highly resistant protein absorption, particularly in complex media and retain a high degree of non-fouling activity over long periods of time. The compositions described herein may also demonstrate antimicrobial and/or anti-thrombogenic activity. The non-fouling material can be grafted from the substrate, or optionally from an undercoating layer on the substrate, preferably without significantly affecting the mechanical and/or physical properties of the substrate material.
BIOFUNCTIONAL MATERIALS
The present invention relates to compositions and processes in the field of self-cleaning system using digestive proteins. One composition includes a substrate, a digestive protein capable of decomposing a stain molecule, and a linker moiety bound to both said digestive protein and said substrate. The processes include binding a substrate to a surface and forming a linker moiety between a digestive protein and said substrate.
SILICONE HYDROGEL LENSES WITH WATER-RICH SURFACES
The invention is related to a hydrated silicone hydrogel contact lens having a layered structural configuration: a lower water content silicone hydrogel core (or bulk material) completely covered with a layer of a higher water content hydrogel totally or substantially free of silicone. A hydrated silicone hydrogel contact lens of the invention possesses high oxygen permeability for maintaining the corneal health and a soft, water-rich, lubricious surface for wearing comfort.
Antifouling materials
The invention provided herein presents a novel family of antifouling agents based on hydroxylated and fluorinated compounds.
HIGH PERFORMANCE COATINGS FOR BUILDING PANELS
The present invention is directed to dirt and anti-microbial resistant articles that include a substrate, a powder coating applied to the substrate, the powder coating may comprise a cross-linked polymeric binder. The powder coating may comprise a blend of metal borate and a sulfur-containing benzimidazole compound, wherein the metal borate and sulfur-containing benzimidazole compound are present in a weight ratio ranging from about 75:1 to about 10:1. The powder coating may comprise fluorosurfactant and a fluorosurfactant may be applied to the powder coating in an amount ranging from about 0.01 g/m.sup.2 to about 4 g/m.sup.2. The powder coating may be formed using a liquid-based fluorosurfactant.
MICROBIAL GROWTH AND DUST RETARDANT ROOFING SHINGLES
A microbial growth and dust retardant roofing shingle comprising a substrate and a pore filling composition applied on the surface of the substrate is disclosed. The pore filling composition comprises of a silane or acrylic composition. A method of protecting a substrate from microbial growth and soiling using the pore filling composition of the present disclosure is also disclosed.
ADHESION SUPPRESSING MATERIAL OF BIOLOGICAL SUBSTANCES
The invention provides a composition for forming a coating film which comprises (1) a polymer of a monomer mixture containing monomers represented by the following formulae (A) to (D):
##STR00001##
(wherein T.sup.a, T.sup.b, T.sup.c, T.sup.d, U.sup.a1, U.sup.a2, U.sup.b1, U.sup.b2, U.sup.b3, Q.sup.a, Q.sup.b, Q.sup.c, R.sup.a, R.sup.b, R.sup.c, R.sup.d, An.sup., m and n are as defined herein), where a ratio of a total of the anionic monomer represented by the above-mentioned formula (A) and the cationic monomer represented by the above-mentioned formula (B) based on total monomers contained in the monomer mixture is 40 mol % or more, and (2) a polycarbodiimide containing a structure represented by the following formula (E):
NCN(E)
a coating film which is a cured product thereof and a process for producing the same, and a cured product and a process for producing the same.
PREPARATION OF POLYAMIDE-IMIDE RESINS USING N-FORMYL MORPHOLINE:3-METHOXY N,N-DIMETHYLPROPANAMIDE
Embodiments generally relate to preparation of polyamide-imide resins using N-Formyl Morpholine:3-Methoxy N,N-Dimethylpropanamide. An embodiment of a method includes generating a polymer solution using a polymerization process, the polymerization process including preparing a solvent including at least N-formylmorpholine (NFM) or a combination of NFM with 3-methoxy N,N-dimethylpropanamide (MDP) as a cosolvent, mixing methylene diphenyl diisocyanate (MDI) and trimellitic anhydride (TMA) with the solvent to generate the polymer solution, and diluting the polymer solution by adding an NFM:MDP solvent mixture or MDP into the generated polymer solution. The method further includes processing the diluted polymer solution to generate polyamideimide polymer or a polyamide-amic acid resin polymer.
FULL SCALE PROCESS FOR PREPARING POLYMER POWDERS
A process for preparing polymer. An embodiment of a method includes generating a resin solution including a first reaction solvent and a polymer resin dissolved therein; deploying the resin solution into a precipitation solvent contained in a chamber of a reaction vessel, wherein deploying the resin solution includes generating droplets of the resin solution; disturbing a resulting mixture of the resin solution and the precipitation solvent, wherein the mixture produces a precipitate; and generating a polymer powder from the mixture, including isolating the precipitate from a remaining portion of the mixture, and drying the isolated precipitate.