Basf Corporation

John W Rehfuss

Walter H Ohrbom

Gregory G Menovcik

Donald L St Aubin

John D McGee

Brian D Bammel

Paul J Harris

Todd A Seaver

John E Boisseau

Robert J Taylor

Marvin L Green

Patricia K Oberg

Donald H Campbell

Rodney L Briggs

Christopher J Bradford

Danielle A Regulski

Bertrum Miller

Joseph P Borst

Patricia A Herrel

Paul J Lessek

Patricia Herrel

The invention relates to a method of making an acrylic graft polymer, especially a urethanized acrylic graft polymer. The method of the invention requires an ethylenically unsaturated monomer mixture (a) comprising a monomer (ai) of a particular structure having at least one cyclic carbonate group and the polymerization of the monomer mixture (a) under free radical polymerization conditions to make an acrylic backbone polymer (b) comprising one or more cyclic carbonate functional groups (bi). At least one grafting moiety (c) is then provided, said grafting moiety (c) comprising at least one amine group (ci) selected from primary amines, secondary amines, and mixtures of both primary and secondary amines. The grafting moiety (c) is then grafted onto acrylic backbone polymer (b) via reaction between the at least one amine group (ci) and cyclic carbonate functional groups (bi) so as to make an urethanized acrylic graft polymer.

Method for selective graft polymerization

A method of preparing a carbamate or urea-functional compound is described comprising the step of reacting a lactone or hydroxy carboxylic acid with a compound (A) comprising a carbamate or urea group or a group that can be converted to a carbamate or urea group, and an active hydrogen group capable of reacting with the hydroxy carboxylic acid or in a ring-opening reaction with a lactone. The compound thus prepared is useful in curable compositions.

Method of preparing a carbamate- or urea-functional compound

Carbamate functional polymers and oligomers

Curable coating composition

Curable coating compositions having improved effect pigment orientation and a method using the same

The invention provides a powder slurry composition comprising a first solid particulate component (a) dispersed in a crosslinking component (b) having at least one crosslinking resin which is liquid at 20&deg; C. First component (a) is in solid particulate form having an average particle size of from 3 to 30 microns. Component (a) has a compound (i) having a T >40&deg; C. and at least one carbamate or urea functional group, or a group convertible to a carbamate or urea group appended thereto. Crosslinking component (b) has at least one crosslinking resin (i) which is liquid at 20&deg; C. Most preferably, crosslinking component (b) will further include a self-crosslinking aminoplast resin (ii) having at least two aminoplast groups and at least two groups which are nonreactive with solid particulate first component (a) but which are reactive with said aminoplast groups. The powder slurry composition of the invention has a VOC of less than 1.0 lbs./gal and provides performance and application improvements over the prior art.

Powder slurry compositions with solid particulate carbamate resin component dispersed in liquid aminoplast resin carrier

A crosslinking agent comprising one or more carbamate groups or groups convertible to carbamate and two or more polyfunctional amino moieties having the formula

Amino resins functionalized with carbamate groups and coating compositions containing the same

A durability enhancing agent comprising the reaction product of an acrylic oligomer or acrylic polymer and an ultraviolet light absorbing compound, a hindered amine light stabilizer or mixture thereof, said durability enhancing agent further comprising more than one carbamate functional group, or group convertible to a carbamate group, and optionally, including other reactive functionality capable of undergoing a crosslinking reaction. Also included is a curable coating composition comprising the durability enhancing agent, a method for obtaining a coated substrate and the coated article obtained thereby.

Acrylic ogligomeric and polymeric durability enhancing agents, method therefore and cured coating composition containing the same

Curable coating compositions are described comprising

Curable coating compositions containing carbamate resin and additives

A durability enhancing agent which is an ultraviolet light absorbing compound or hindered amine light stabilizer covalently bonded to a monomeric, oligomeric or polymeric component. The durability enhancing agent includes more than one carbamate functional group, group convertible to a carbamate group, or group that is crosslinked via a carbamate group. The durability enhancing agent may also have other reactive functionality thereon. Also included is a coating composition including the durability enhancing agent.

Durability enhancing agents, method therefore and cured coating

The present invention relates to a modified crosslinkable resin and a composite coating composition or system employing the resin. More particularly, the resin comprises an ethylenically unsaturated monomer or copolymer and para-hydroxybenzoic acid or substituted para-hydroxybenzoic acid, the reaction product thereof subsequently being reacted with a crosslinking agent gives rise to a composition including an ether linkage with a carbon-carbon site ortho to the phenolic hydroxy group.

Unsaturated copolymer reacted with substituted p-hydroxybenzoic acid and

The present invention provides a curable coating composition that includes at least three components. The coating composition includes a component (a) that includes one or both of a compound (a)(1) having at least one carbamate group or terminal urea group according to the invention and having at least two linking groups that are urethane or urea or a compound (a)(2) having at least two groups selected from carbamate groups, terminal urea groups, or combinations of the two and at least four urethane or urea linking groups. The second component (b) of the coating composition includes an acrylic polymer comprising active hydrogen-containing functional groups reactive with the third component(c). Component (c) of the coating composition is a curing agent that is reactive with the first two components. Preparation of coated articles using the compositions of the invention is also disclosed.

Growing community of inventors

West Bloomfield, MI, United States of America

John W Rehfuss