Bee Chemical Company

Rohm and Haas Company

Basf Se Corporation

Morton International, Inc.

Nippon Paint (usa), Inc.

Bee Chemical

Michael L Jackson

Frank A Stubbs

Joseph M Mecozzi

Dean T Smith

Raymond J Moeller, Jr

David J Miklos

Alexander L Neymark

Robert Kooy

Michael W Leonard

Takumi Kitagawa

Mark Hodapp

Greg Palagi

Willaam A Rasmussen

William A Rasmussen

Nicholas J Sopcich

Robert J Abbate

James Bugajski

James C Drescher

Jeff Makarewicz

Ikuo Asato

Toru Tanaka

Manabu Ozawa

Nobuhiro Mori

Blake Burich

Robert D Tokash

Lisa M Muller

Raymond Joseph Moeller

A rigid polyurethane foam includes the reaction product of an isocyanate and an isocyanate reactive component in the presence of a blowing agent. The isocyanate reactive component includes an aromatic polyester polyol, a rigid polyol, and an aliphatic polyester polyol. The rigid polyurethane foam has a tensile adhesion of greater than 35 kPa (5 psi) when disposed on a metal substrate or a polyester, polyurethane, or epoxy coated metal substrate, each having a substrate temperature of greater than 41&#xb0; C. (105&#xb0; F.), and tested in accordance with ASTM D1623-09. A method of forming a composite article comprising a substrate and the rigid polyurethane foam includes the steps of combining the isocyanate reactive component and the isocyanate in the presence of the blowing agent to form a reaction mixture and applying the reaction mixture to the substrate having a substrate temperature of greater than 41&#xb0; C. (105&#xb0; F.) to form the composite article.

Rigid polyurethane foam

The present invention provides reactive aqueous or solvent borne compositions comprising one or more low-temperature curing alkylether functional aminoplast resins having an average degree of polymerization of from 1.0 to 2.0, preferably alkylether group containing melamines, one or more hydroxyl group containing resins or polymers, such as acrylics and polyesters, one or more unblocked acid catalysts each having a pKa of 0.25 to 1.0, such as organic sulfonic acids, and one or more volatile amines, e.g. N-dipropylamine, that have a relative evaporation rate (RER) of 50-500, wherein, RER equals (p)(M)/11.6, with p being the vapor pressure of the amine in mm Hg and M being the molecular weight of the amine. The compositions cure at from 60&#xb0; C. to 135&#xb0; C., e.g. below 105&#xb0; C., to form durable coatings suitable for plastic substrates, such as automotive plastics. The present invention also provides methods of forming the compositions comprising mixing the said aminoplast resins, hydroxyl group containing resins or polymers, unblocked acids and volatile amines to form a mixture, wherein the acids and the amines are added separately into the mixture.

Low bake melamine cured coating compositions

A coating composition particularly suitable for coating poly(phenylene oxide) comprises aqueous medium-dispersed particles of: A) between about 30 and about 35 wt %, of a first styrene-acrylic polymer formed of monomers, between about 50 and about 80 mole % of which monomers are styrene or substituted styrene monomers, between about 2 and about 15 mole percent of which monomers are acrylonitrile, and between about 18 and about 48 mole percent of which are acrylic monomers, said first styrene-acrylic polymer having an acid number of about 15 or below; B) between about 30 and 35 wt %, of an acrylic second polymer formed of monomers, at least about 90 mole percent of which monomers are acrylate monomers, balance other &agr;, &bgr;-ethylenically unsaturated monomers, said acrylic second polymer having an acid number between 0 and about 25; and C) between about 30 and about 40 wt % of an acrylic-urethane hybrid polymer.

One component waterborne coating with improved chemical resistance

A zero VOC aqueous coating composition comprising a halogen-free propylene/&agr;-olefin copolymer having an &agr;,&bgr;-unsaturated dicarboxylic acid or anhydride grafted thereon, a neutralizing base, a water-dispersible resin containing at least two epoxy groups and an acid catalyst is applied to a plastic substrate comprising a propylene polymer. The dried coating promotes adhesion of a subsequent coating to the polypropylene-based surface of the article.

Chlorine-free, zero voc, waterborne adhesion promoter for polyolefinic substrates

A sprayable, solvent-borne, primer composition for use as a first coat on light-sensitive, automotive plastic parts. The primer serves as a barrier to block ultraviolet light penetration to the underlying substrate and to prevent migration of substrate degradation and by-products up into the topcoat finishes. The primer is a solvent blend of a film-forming crosslinkable polymer resin, a crosslinker for the resin, a catalyst, carbon black pigments surface modified with a polymer dispersant and an organic pigment derivative co-dispersant, crosslinked polymer microgel particles, and U.V. absorbers and optional antioxidants. The surface modification on the carbon black pigments results in higher pigment loadings, which, in turn, imparts U.V. light protection at exceptionally low dry film builds. Furthermore, the microgel particles cause the primer to build in viscosity and set up a gel structure in its uncured state, which allows the primer to be overcoated wet-on-wet with automotive topcoat finishes and cured simultaneously in a single bake without diminishing the topcoat appearance and physical properties. The need for a separate primer bake prior to topcoat application is, therefore, eliminated.

Wet-on-wet primer with low film build U.V. light protection

A one-coat, waterborne coating system for a polypropylene substrate comprises a mixture of an an acid functional acrylic resin latex, a latex of chlorinated polyolefin resin, and a cross-linking agent reactive with the acid functionality of the acrylic resin.

One-coat, waterborne coating system for untreated polypropylene-based

A zero VOC aqueous coating composition comprising a halogen-free propylene/.alpha.-olefin copolymer having an .alpha.,.beta.-unsaturated dicarboxylic acid or anhydride grafted thereon, a base, and a water-dispersible resin containing at least two epoxy groups is applied to a plastic substrate comprising a propylene polymer. The dried coating promotes adhesion of a subsequent coating to the polypropylene-based surface of the article.

Chlorine-free, zero VOC, waterborne adhesion promoter for polyolefinic

A water-free, water-free reducible primer composition having a volatile organic content of less than 3 pounds per gallon yields a tough, flexible, and weatherable film when applied to metal or plastic substrates. The base resin is a polyester having an acid number of from about 50 to about 60 and a hydroxyl number of from about 160 to about 200. The polyester is the reaction product of from about 0.45 to about 0.5 mole % of adipic acid, from about 0.35 to about 0.4 mole % of neopentyl glycol, and from about 0.15 to about 0.2 mole % of trimethylolpropane.

Water reducible polyester and resin composition for a flexible plastic

A primer composition, particularly suitable for a highly plasticized polyolefin substrate, comprises a mixture of chlorinated polyolefin and rubberized epoxy resin.

Primer for polyolefin containing chlorinated polyolefin and rubberized

Electro-deposition-coated steel is top coated with a flexible coating formed of a polyester having --OH functionality, a polyacrylate having --OH functionality and melamine-formaldehyde resin to provide substantially a stoichiometric amount of reactive sites relative to the total amount of --OH functionality of the polyester and the polyacrylate. The flexible coatings exhibit superior chip and scratch resistance relative to rigid coatings of the type conventionally used in the automotive industry.

Utilization of flexible coating on steel to impart superior scratch and

Electro-deposition-coated steel is top coated with a flexible coating formed of a polyester having -OH functionality, a polyacrylate having -OH functionality and melamine-formaldehyde resin to provide substantially a stoichiometric amount of reactive sites relative to the total amount of -OH functionality of the polyester and the polyacrylate. The flexible coatings exhibit superior chip and scratch resistance relative to rigid coatings of the type conventionally used in the automotive industry.

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LaGrange, IL, United States of America

Michael L Jackson