C09D5/4442

Method for Protecting Wood

The invention pertains to a method for protecting wood comprising coating wood with a coating composition, wherein the coating composition is an aqueous coating composition comprising at least one anionically stabilized latex polymer, at least one polyfunctional amine, and at least one volatile base, and having a pH in the range of from 9.5 to 11, wherein the wood has a moisture content of at least 15 wt. %.The invention further pertains to the use of such coating composition in the protection of wood with a moisture content of at least 15 wt. %.

AQUEOUS BINDER DISPERSIONS INTENDED FOR CATHODIC ELECTROCOAT MATERIALS AND COMPRISING A CROSSLINKER BASED ON 2,2-DIMETHYL-1,3-DIOXOLANE-4-METHANOL-BLOCKED POLYISOCYANATES

The present invention relates to aqueous binder dispersions for cationic electrocoat materials, comprising as binders amine-modified, hydroxy-functional epoxy resins and comprising as crosslinker at least one fully blocked polyisocyanate blocked at least partly with 2,2-dimethyl-1,3-dioxolane-4-methanol, and also to the use of such cationic electrocoat materials for producing coating systems and to the use of crosslinkers based on polyisocyanates blocked with 2,2-dimethyl-1,3-dioxolane-4-methanol in aqueous binder dispersions.

A PAINT FORMULATION AND THE PROCESS OF MAKING THEREOF

The present invention provides a paint formulation comprising a binder dispersion and a hydrophobically modified alkali-swellable emulsion. The wet weight ratio of the binder dispersion to the hydrophobically modified alkali-swellable emulsion is from 1:3 to 1:10. The binder dispersion comprises by dry weight based on total dry weight of the binder dispersion, from 0.1% to 80% of polymer particles, and from 0.1% to 5% of a polysaccharide; and the hydrophobically modified alkali-swellable emulsion comprises by dry weight based on total dry weight of the hydrophobically modified alkali-swellable emulsion, from 30% to 50% of an α,β-ethylenically unsaturated carboxylic acid monomer, and from 30% to 60% of an α,β-ethylenically unsaturated nonionic monomer. The present invention further provides a process for preparing the paint formulation comprising mixing the binder dispersion with the hydrophobically modified alkali-swellable emulsion under stirring.

ELECTRODEPOSITABLE COATING COMPOSITION

The present invention is directed to a phosphated epoxy resin comprising at least one terminal group comprising a phosphorous atom covalently bonded to the re sin by a carbon-phosphorous bond or by a phosphoester linkage; and at least one carbamate functional group. The present invention is also directed towards aqueous resinous dispersions comprising the phosphated epoxy resin, methods of coating a substrate, coated substrates, and methods of making a phosphated epoxy resin.

Electrodepositable coating composition

The present invention is directed to a phosphated epoxy resin comprising at least one terminal group comprising a phosphorous atom covalently bonded to the resin by a carbon-phosphorous bond or by a phosphoester linkage; and at least one carbamate functional group. The present invention is also directed towards aqueous resinous dispersions comprising the phosphated epoxy resin, methods of coating a substrate, coated substrates, and methods of making a phosphated epoxy resin.

LOW VOC ANIONIC ELECTRODEPOSITABLE COATING COMPOSITION

The present invention is directed to an electrodepositable coating composition comprising a main vehicle comprising a phosphatized epoxy resin, a plasticizer, and a curing agent, wherein the main vehicle comprises a low-VOC main vehicle. The present invention is also directed to coatings and coated substrates.

ELECTRODEPOSITABLE COATING COMPOSITION

The present invention is directed to a phosphated epoxy resin comprising at least one terminal group comprising a phosphorous atom covalently bonded to the resin by a carbon-phosphorous bond or by a phosphoester linkage; and at least one carbamate functional group. The present invention is also directed towards aqueous resinous dispersions comprising the phosphated epoxy resin, methods of coating a substrate, coated substrates, and methods of making a phosphated epoxy resin.

Intumescent coating composition
10442937 · 2019-10-15 · ·

An intumescent coating composition that includes an epoxy resin binder, an epoxy reactive diluent, a curing agent and an acid catalyst. The curing agent includes a mixture of polyimide, polyetheramine, and an amine functional monomer, wherein the amine multifunctional monomer is different from the polyetheramine. The acid catalyst is effective to form a phosphoric acid on thermal decomposition. The coating composition has a viscosity of between 20,000 and 140,000 mPa/s at 20 C. and shear rate 1.5 s.sup.1 when measured within 1 minute of mixing the components. The invention also includes a coated substrate having the intumescent coating composition coated on at least a portion thereof.

ELECTRODEPOSITABLE COATING COMPOSITIONS

The present disclosure is directed to an electrodepositable coating composition comprising a hydroxyl-functional addition polymer comprising constitutional units, at least 70% of which comprise formula (I): [C(R.sup.1).sub.2C(R.sup.1)(OH)] (I), wherein each R.sup.1 is independently one of hydrogen, an alkyl group, a substituted alkyl group, a cycloalkyl group, a substituted cycloalkyl group, an alkylcycloalkyl group, a substituted alkylcycloalkyl group, a cycloalkylalkyl group, a substituted cycloalkylalkyl group, an aryl group, a substituted aryl group, an alkylaryl group, a substituted alkylaryl group, a cycloalkylaryl group, a substituted cycloalkylaryl group, an arylalkyl group, a substituted arylalkyl group, an arylcycloalkyl group, or a substituted arylcycloalkyl group; an ionic salt group-containing film-forming polymer comprising active hydrogen functional groups; a blocked polyisocyanate curing agent comprising blocking groups, wherein the blocking groups comprise a 1,2-polyol as a blocking agent; and a bismuth catalyst.

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ELECTRODEPOSITABLE COATING COMPOSITIONS

The present disclosure is directed to an electrodepositable coating composition comprising (a) an active hydrogen-containing, ionic salt group-containing film-forming polymer: (b) an at least partially blocked polyisocyanate curing agent: (c) a curing catalyst; and (d) an edge control additive: wherein the electrodepositable coating composition has a gel point of less than 150? C. as measured by the GEL POINT TEST METHOD, an edge coverage of greater than 20%, as measured by the EDGE COVERAGE TEST METHOD, and an Ra of no more than 0.45, as measured by the SURFACE ROUGHNESS TEST METHOD. Also disclosed are methods of coating substrates, coatings, and coated substrates.