Patent classifications
C09D9/00
CROSS-LINKED ORGANOSILICON NETWORKS THAT DEGRADE WITH FLUORIDE SALTS
Disclosed herein is a method and thermoset made by: reacting a di- or tri-functional isocyanate with a silyl-containing compound to form a polyurethane having at least one unreacted isocyanate group, reacting the polyurethane with an aminoalkylalkoxysilane to form an alkoxysilane-terminated polyurethane, and moisture-curing the alkoxysilane-terminated polyurethane to form the thermoset. The silyl-containing compound has the formula: SiR.sup.1.sub.n[R.sup.3(OCOXR.sup.3).sub.mOH].sub.4-n. Each X is O or NR.sup.2; each R.sup.1 is an alkyl group or an aryl group; each R.sup.2 is H, an alkyl group, or an aryl group; each R.sup.3 is an alkylene group; n is 0, 1, or 2; and each m is a non-negative integer. The thermoset may be degraded by treatment with a solution of a fluoride salt in an organic solvent.
Compositions for the removal of silicone conformal coatings from a printed circuit board
A solvent composition has an oxygenated solvent and a siloxane solvent. In one embodiment, the oxygenated solvent is propylene glycol methyl ether and the siloxane solvent is hexamethyldisiloxane or octamethyltrisiloxane. In another embodiment, the solvent composition is an azeotrope of propylene glycol n-butyl ether and decamethyltetrasiloxane. The siloxane solvent can be used in any situation where one desires to remove a silicone deposit, e.g., conformal coatings, adhesives, sealants, greases, heat transfer fluids, paints, oils, etc.
STRIP FREE FLOOR SYSTEM
The present disclosure provides a floor care system that includes an abrasive pad, a floor finish composition, and a remover solution. The floor finish composition typically comprises at least one polymer emulsion, a first alkali soluble resin, a second alkali soluble resin, at least one plasticizer, and at least one solvent. The remover solution typically comprises at least one organic functional amine selected from a branched or unbranched amino-alkoxy-alkanol moiety, and at least one surfactant. The at least one organic functional amine typically comprises 50% to 80% by weight of the remover solution.
STRIP FREE FLOOR SYSTEM
The present disclosure provides a floor care system that includes an abrasive pad, a floor finish composition, and a remover solution. The floor finish composition typically comprises at least one polymer emulsion, a first alkali soluble resin, a second alkali soluble resin, at least one plasticizer, and at least one solvent. The remover solution typically comprises at least one organic functional amine selected from a branched or unbranched amino-alkoxy-alkanol moiety, and at least one surfactant. The at least one organic functional amine typically comprises 50% to 80% by weight of the remover solution.
A NON-AQUEOUS STRIPPING COMPOSITION AND A METHOD OF STRIPPING AN ORGANIC COATING FROM A SUBSTRATE
To achieve efficient stripping of organic coatings from sensitive substrate without affecting the substrate surface, a novel non-aqueous stripping composition and method are provided. The stripping composition comprises: A. at least one high-boiling solvent selected from the group, consisting of alcohols having general chemical formula ROH, wherein R is a C.sub.4-C.sub.30 hydrocarbon group, wherein the high-boiling solvent has a boiling point of at least 100 C.; B at least one high-boiling co-solvent selected from the group, consisting of high-boiling glycols, glycol ethers and amine compounds, wherein the high-boiling co-solvent has a boiling point of at least 100 C.; and C at least one pH-active agent either selected from the group, consisting of acid compounds or selected from the group, consisting of hydroxide compounds.
Compositions for the Removal of Silicone Deposits
A solvent composition has an oxygenated solvent and a siloxane solvent. In one embodiment, the oxygenated solvent is propylene glycol methyl ether and the siloxane solvent is hexamethyldisiloxane or octamethyltrisiloxane. In another embodiment, the solvent composition is an azeotrope of propylene glycol n-butyl ether and decamethyltetrasiloxane. The siloxane solvent can be used in any situation where one desires to remove a silicone deposit, e.g., conformal coatings, adhesives, sealants, greases, heat transfer fluids, paints, oils, etc.
Biodegradable Shading Paint
The invention pertains to a biodegradable coating composition, comprising a crosslinked starch and a filler, and optionally a polyol plasticizer, as well as to outside structures such as greenhouses, comprising a coating layer obtained by drying the said coating composition. The invention furthermore pertains to removal of the coating layer using a targeted cleaning composition.
Biodegradable Shading Paint
The invention pertains to a biodegradable coating composition, comprising a crosslinked starch and a filler, and optionally a polyol plasticizer, as well as to outside structures such as greenhouses, comprising a coating layer obtained by drying the said coating composition. The invention furthermore pertains to removal of the coating layer using a targeted cleaning composition.
Paint remover composition and method of making
A composition for paint removal and methods of making and of using the composition are provided. The paint remover composition comprises a component selected from the group consisting of THF, toluene, acetone, DMSO, dioxalane, 1,2 trans dichloroethylene, and a combination thereof.
Chemical process for stripping surfaces
A method of chemically stripping a surface is described. The method comprises applying a sealant to at least a portion of a surface of an object, the surface comprising a coating and one or more ingression points, the sealant filling the one or more ingression points to form a sealed surface. The method further comprises applying a stripping agent to the sealed surface to remove at least a portion of the coating to form a stripped surface.