Ppg Industries, Inc.

Anderson Development Co.

Mitsui Toatsu Chemicals, Incorporated

Paul J Prucnal

Edward L Dufford

Wen-Hsuan Chang

Ronald R Ambrose

John R Peffer

Wen H Chang

Szu-Ping Lu

Roger L Scriven

Gregory J McCollum

Shanti Swarup

Karl F Schimmel

Debra L Singer

Marco Wismer

Michael J Pawlik

Alan J Kaylo

Ralph C Gray

J Alden Erikson

William P Blackburn

John F Grunewalder

Mark A Harley

Douglas R Camp

Robert DeMajistre

Christopher J Baldy

Kenneth E Miller

Hiram A Norton

John W Tiedt

A process for separating a solvent and low molecular weight material from an acrylic resin by adding a hindered amine light stabilizer having at least one aminoether group to a mixture of the organic solvent, low molecular weight material and the acrylic resin and subjecting the resulting mixture to an elevated temperature for a time sufficient to remove the solvent and low molecular weight material from the acrylic resin by devolatilization. A composition can be provided which is capable of being formed into a powder coating composition which essentially contains an acrylic resin, a hindered amine light stabilizer having at least one aminoether group or residue thereof and less than 4% by weight of low molecular weight material having a molecular weight less than 600.

Process for devolatilizing an acrylic resin and process for preparing a powder coating composition

A graft copolymer comprising a polyamide to which is grafted a glycidyl group-containing acrylate copolymer. The graft copolymer can be prepared by dispersing in an organic solvent a polyamide and a material which will react with the polyamide to form the graft copolymer of the polyamide and the acrylate copolymer and reacting the polyamide and the material so as to form said graft copolymer. The graft copolymer can exhibit improved toughness and reduced friability and can be used to form molded articles and in coating compositions, especially powder coating compositions. The coatings can exhibit transparency, reduced brittleness and increased chip resistance. The powder coatings can further exhibit high gloss and smoothness due to superior flow characteristics thereby enabling thinner coatings to be used that provide acceptable appearance.

Graft copolymer of polyamide and a glycidyl group-containing acrylate copolymer, process for preparation and coating composition containing the graft copolymer

A low gloss coating composition having a 60.degree. gloss of less than about 60 which contains:

Low gloss coating compositions

Acid functional compounds which are the reaction products of monoepoxides, phosphorus-containing acids and cyclic anhydrides are disclosed. The reaction products promote adhesion and prevent yellowing when added to curable film-forming compositions.

Epoxide-phosphorous acid-containing reaction products and their use in

Aqueous acid solutions for treating metal surfaces such as aluminum and galvanized steel are disclosed. The solutions are mixtures of organophosphates or phosphonates and chloride or fluoride. The treating solutions can be used in place of chromium treating solutions.

Non-chrome passivation for metal substrates

Disclosed is a method for providing a wood substrate with durability against weathering comprising at least two steps (A) and (B). Step (A) consists of appying to the wood substrate a transparent treatment comprising an organosilicon-containing compound having at least one hydrolyzable silyl group in a carrier for said compound. Step (B) consists of thereafter coating the wood substrate with a transparent, film-forming, coating composition. The coating composition is characterized in that a transparent free film from the coating composition retains an elongation of at least 20 percent after at least 1,000 hours exposure in a Xenon Weatherometer.

Transparent coating system for providing long term exterior durability

Disclosed is an ungelled acrylic resin composition containing an acrylic polymer having in a molecule thereof at least one group containing a silicon atom selected from: ##STR1## each R independently is selected from the group of moieties consisting of Y, hydrogen, a C.sub.1 -C.sub.10 group joined to Si through an Si-C linkage, and OR.sup.7 in which R.sup.7 represents alkykl having at least 4 carbon atoms, aryl, alkylaryl, arylalkyl, aryloxyalkyl, or alkyloxyalkyl, wherein Y represents an easily hydrolyzable group. The acrylic resin composition, contains an amount of easily hydrolyzable Y moieties such that the ratio of the number of grams of the ungelled acrylic resin composition to equivalent of easily hydrolyzable Y moieties in the ungelled acrylic resin composition is in the range of from 40 to 667. Preferred acrylic resin compositions of the invention can be cured in the presence of atmospheric moisture and a suitable catalyst at a temperature of less than or equal to 121 degrees Celsius within 3 hours. Disclosed is a method for producing the ungelled acrylic resin composition. Also disclosed is a nonaqueous composition, particularly a nonaqueous coating composition, containing the ungelled acrylic resin composition. Preferred coating compositions containing an ungelled acrylic resin composition can be cured in the presence of atmospheric moisture and a suitable catalyst at a temperature of less than or equal to 121 degrees C. within 3 hours.

Method of preparing acrylic polymers containing hydrolyzable moieties

Disclosed is an ungelled acrylic resin composition containing an acrylic polymer having in a molecule thereof at least one group containing a silicon atom selected from: ##STR1## wherein each R independently is selected from the group of moieties consisting of Y, hydrogen, a C.sub.1 -C.sub.10 group joined to Si through an Si--C linkage, and OR.sup.7 in which R.sup.7 represents alkyl having at least 4 carbon atoms, aryl, alkylaryl, arylaklyl, aryloxyalkyl, or alkyloxyalkyl, wherein Y represents an easily hydrolyzable group. The acrylic resin composition, contains an amount of easily hydrolyzable Y moieties such that the ratio of the number of grams of the ungelled acrylic resin composition to equivalent of easily hydrolyzable Y moieties in the ungelled acrylic resin composition is in a range of from 40 to 667. Prefered acrylic resin compositions of the invention can be cured in the presence of atmospheric moisture and a suitable catalyst at a temperature of less than or equal to 121 degrees Celsius within 3 hours. Disclosed is a method for producing the ungelled acrylic resin composition. Also disclosed is a nonaqueous composition, particularly a nonaqueous coating composition, containing the ungelled acrylic resin composition. Preferred coating compositions containing an ungelled acrylic resin composition can be cured in the presence of atmospheric moisture and a suitable catalyst at a temperature of less than or equal to 121 degrees C within 3 hours.

Substrates coated with nonaqueous compositions comprising acrylic

Disclosed is an ungelled acrylic resin composition containing an acrylic polymer having in a molecule thereof at least one group containing a silicon atom selected from: ##STR1## wherein each R independently is selected from the group of moieties consisting of Y, hydrogen, a C.sub.1 -C.sub.10 group joined to Si through an Si-C linkage, and OR.sup.7 in which R.sup.7 represents alkyl having at least 4 carbon atoms, aryl, alkylaryl, arylalkyl, aryloxyalkyl, or alkyloxyalkyl, wherein Y represents an easily hydrolyzable group. The acrylic resin composition, contains an amount of easily hydrolyzable Y moieties such that the ratio of the number of grams of the ungelled acrylic resin composition to equivalent of easily hydrolyzable Y moieties in the ungelled acrylic resin composition is in a range of from 40 to 667. Preferred acrylic resin compositions of the invention can be cured in the presence of atmospheric moisture and a suitable catalyst at a temperature of less than or equal to 121 degrees Celsius within 3 hours. Disclosed is a method for producing the ungelled acrylic resin composition. Also disclosed is a nonaqueous composition, particularly a nonaqueous coating composition, containing the ungelled acrylic resin composition. Preferred coating compositions containing an ungelled acrylic resin composition can be cured in the presence of atmospheric moisture and a suitable catalyst at a temperature of less than or equal to 121 degrees C. within 3 hours.

Acrylic polymers containing hydrolyzable moieties from organosilane

Disclosed are moisture-curable compositions based on (A) ungelled, partial hydrolyzates or organosilicon-containing materials in combination with (B) acrylic addition interpolymers containing hydrolyzable silyl groups. The organosilicon-containing material for preparation of the ungelled partial hydrolysis product has an average functionality based on easily hydrolyzable Y groups attached to silicon atoms of greater than or equal to 2.4 and contains greater than or equal to 10 mole percent of at least one organosilane compound corresponding to the formula R-Si-Y.sub.3. The partial hydrolysis product is prepared using a controlled amount of water. The acrylic addition interpolymer is not particularly limited provided that it contains at least one silicon atom directly bonded to a hydrolyzable group and is compatible with the ungelled partial hydrolysis product.

Compositions based on silane hydrolyzates and vinyl polymers containing

A coating composition contains at least 15 percent by weight of an ungelled reaction product of:

Coating composition containing an ungelled reaction product as a curative

Disclosed is a curable composition containing (1) a resin containing at least one air-oxidizable group and at least one epoxy group, and (2) a compound having in a molecule thereof at least one epoxy-reactive moiety and at least one silicon atom directly bonded to a group Y wherein Y represents a hydrolyzable group.

Compositions containing resins having air-oxidizable groups and epoxy

Disclosed is a composition containing a novel ungelled resin in combination with an effective amount of a cure-promoting catalyst selected from the group consisting of triflic acid (i.e., trifluoromethane sulfonic acid), a neutralization product of triflic acid with ammonia, a neutralization product of triflic acid with an amine, a tetraalkyl ammonium salt of triflic acid, and mixtures of one or more of the aforesaid catalysts. The composition can be cured with moisture and/or with polyols and can be used to provide protective and/or decorative films on a variety of substrates. The novel ungelled resin comprises a compound corresponding to a specified formula (I) which compound typically is prepared by reaction of an aminoalkyloxy silane with an organic isocyanate. The ungelled resin contains a hydrolyzable group that is attached directly to silicon.

Catalysts for curable coating vehicle based upon aminoalkyloxy silanes

Polymer having tertiary amine oxide groups may be cathodically electrodeposited from aqueous electrodeposition baths.

Process for cathodically electrodepositing polymers having tertiary

3-Halo-2-hydroxypropyl acrylates and methacrylates and 2-halo-1-(hydroxymethyl)ethyl acrylates and methacrylates are used as reactive solvent for an acrylic or methacrylic terminated polyether resin in radiation curable coating compositions.

Growing community of inventors

Pittsburgh, PA, United States of America

Paul J Prucnal