E.i. Dupont De Nemours and Company

Lee R Harper

Robert John Barsotti

Nitin Jivanlal Champaneria

Edward A Hosegood

Eugene G Sommerfeld

John David Nordstrom

Judith Elaine Obetz

Lili W Altschuler

William H Steinmetz

Gayann S McDonnell

Dean C Burkhart

Michele R Lock

A curable coating composition comprising, in an organic solvent, a binder of (i) a non-isocyanate oligomer or blend of oligomers containing at least two functional groups with at least one being an epoxy group, the remaining being epoxy or hydroxyl; (ii) optionally a polyester, oligoester, or acrylic polymer with at least two hydroxyl groups; and (iii) an oligomeric crosslinker or blend of crosslinkers which contain at least two isocyanate groups.

Oligomeric epoxy/isocyanate systems

Low VOC refinish coating composition

An ambient cured aqueous coating composition useful for maintenance coatings for architectural structures or for a finish or refinish for automobiles and trucks. The film-forming binder comprises a neutralized half-ester product of an acrylic polymer having at least two reactive anhydride groups and an epoxy-containing, optionally silane-containing crosslinker. The composition may be used as a mulit-package system. The composition is characterized by improved environmental resistance and excellent clarity and appearance, particularly for clearcoats.

Ambient curing water-borne compositions comprising half esters of

An improved process for forming multiple coats of finishes on a substrate by sequential (a) applying to the substrate a layer of a color basecoat composition of waterborne coating composition of an acrylic polymer latex contains pigment; (b) applying to the layer of color basecoat composition before it is fully cured a clear coat composition of an acrylic polymer having crosslinkable groups and a crosslinking agent in a volatile organic solvent and (c) subsequently simultaneously curing the basecoat composition and the clear coat composition; the improvement used therewith comprises a solvent based clear coating composition having a binder of about

Low VOC clear epoxy acrylic coating composition for basecoat clear coat

Low VOC clear coating composition for basecoat clear coat finish

Low VOC clear epoxy acrylic coating composition for basecoat clear finish

A coating composition, useful for finishing automobiles and trucks, in which the film forming binder contains, as reactive binder components, a mixture of a first polymer having at least two reactive anhydride groups and a second polymer or oligomer having at least two reactive epoxy groups, characterized by the second polymer being structured so that the epoxy groups are skewed to have a majority thereof at one end of the polymer.

Coating composition comprising an anhydride-containing polymer and a

A coating composition useful for a finish for automobiles and trucks in which the film forming binder contains reactive binder components of about

Multi-component coating composition comprising an anhydride containing

Water-borne reaction products of (a) carboxyl-functional polymers; (b) polyepoxides; and (c) tertiary amines are blended with (d) carboxyl-functional polymers having an acid number dissimilar to that of (a). The resulting products are useful as film-forming components of coating compositions which can be spray-, flow-, dip-, roller-, or electro-coated and are especially useful for spray coating the inside of two-piece tin-plated steel cans of beverages and food. The coating compositions are useful as such or can be crosslinked with crosslinking agents such as a nitrogen resin.

Water-borne coating composition made from epoxy resin, first polymeric

A durable antisoiling coating composition for textile filaments comprises a perfluoroalkyl ester of a citric acid urethane and fluorinated alcohols in combination with a modified epoxy resin which is the reaction product of a carboxyl-functional vinyl polymer, an epoxy resin and a tertiary amine. The composition can be applied as an aqueous dispersion, including a non-ionic textile lubricant based on poly(ethylene glycol).

Durable antisoiling coatings for textile filaments

A durable antisoiling coating composition for textile filaments and articles made therefrom comprises a perfluoroalkyl ester of a citric acid urethane and fluorinated alcohols in combination with a modified epoxy resin which is the reaction product of a carboxyl-functional vinyl polymer, an epoxy resin and a tertiary amine. The composition can be applied as an aqueous dispersion, including a non-ionic textile lubricant based on poly(ethylene glycol). The dispersion can be used as a spin finish to provide durable protection to filaments, particularly nylon filaments.

Durable antisoling coatings for textile filaments

Described are polyester-urethane-epoxy adhesives produced by reacting one or more diols with two or more dicarboxylic acids to form a polyester prepolymer; chain-extending the prepolymer with an organic diisocyanate to yield a hydroxy-terminated polyester-urethane; capping the urethane partially or completely with a dicarboxylic acid or anhydride of dicarboxylic acid; and finally reacting with an epichlorohydrin/bisphenol A-type epoxy resin, forming an epoxy polyester-urethane block copolymer. The resulting product may then be crosslinked in use as an adhesive.

Growing community of inventors

Media, PA, United States of America

Lee R Harper