American Cyanamid Company

Cytec Technology Corporation

William F Jacobs, Iii

Werner J Blank

Girish G Parekh

Robert G Lees

Lon-Tang Wilson Lin

Subban Ramesh

Ram Baboo Gupta

David Gschneidner

William Elliot Bay

Howard R Lucas

Kuang-Jong Wu

James C Goebel

At least bis-imido 1,3,5-triazines and processes of preparing the same are disclosed. Also disclosed are prepolymers having at least bis-imido functionality and curable compositions comprising at least bis-imido 1,3,5-triazines or prepolymers thereof in combination with active hydrogen and/or epoxy functional materials. The at least bis-imido 1,3,5-triazines and prepolymers may be advantageously employed as crosslinking agents which crosslink by a ring opening reaction that eliminates the release of volatile organic compounds.

Cyclic imido-1,3,5-triazine crosslinking agents

A process is provided for preparing isocyanate and isocyanate-based 1,3,5-triazine derivatives by the direct phosgenation of (at least tris-unsubstituted amino)-1,3,5-triazines.

Process for preparing isocyanate and isocyanate-based derivatives of

A novel, one component self-crosslinking resin and a process for its preparation are provided. The resin is the copolymer of:

N-hydroxysuccinimide-blocked isopropenyl-alpha, alpha-dimethylbenzyl

A hydrophilic, substantially epoxy-free self-cross-linkable polymer contains hydroxyalkyl carbamate groups and one or more tertiary amine groups. The polymer suitably is made by reacting an epoxy resin having an average epoxy equivalent weight of from about 100 to about 700 with one or more amines having at least one secondary amine group and at least one hydroxyalkyl carbamate group or precursor thereof. A coating composition comprises an aqueous medium containing the polymer and, optionally, a cross-linking catalyst. A low temperature-curable coating is attained by utilization of the polymer with a suitable quaternary or ternary compound catalyst.

Water based hydroxyalkyl carbamate-containing resins and method of

A self-cross-linkable acrylic polymer contains at least two hydroxyalkyl carbamate groups per molecule and may comprise the reaction product of an acrylic backbone polymer containing one or more suitable reactive groups and an amine containing one primary or secondary amine group and at least one hydroxyalkyl carbamate group or precursor thereof. Alternatively, the self-cross-linkable polymer may be obtained by polymerization of an acrylic polymerizable monomer containing at least one hydroxyalkyl carbamate group. The amine is joined to the monomer or backbone polymer by reaction of the primary or secondary amine group thereof with suitable reactive functional groups of the monomer or resin. A method of making the acrylic polymer, which is heat curable to provide a thermoset film or coating, comprises reacting the monomer or backbone polymer with an amine containing hydroxyalkyl carbamate groups or precursors thereof comprising hydrolyzable blocked primary amine groups. When present, the blocked groups are unblocked and reacted with a cyclic carbonate to form the hydroxyalkyl carbamate groups.

Self-cross-linkable acrylic polymer containing hydroxyalkyl carbamate

A cathodically electrodepositable, self-cross-linkable polymer is a hydroxyalkyl carbamate-containing resin having at least one tertiary amine and at least two hydroxyalkyl carbamate groups per molecule. The polymer is made by reacting an epoxy resin having an average epoxy equivalent weight of from about 300 to about 10,000 with one or more amines having at least one secondary amine group and at least one hydroxyalkyl carbamate group or precursor thereof. Hydrophobic amines may be co-reacted to enhance hydrophobicity of the polymer. An electrodeposition bath is made by acidifying the polymer to form an aqueous dispersion. A low temperature-curable coating is attained by utilization of the polymer with a suitable quaternary or ternary compound catalyst.

Hydroxyalkyl carbamate-containing resins for cathodic electrodeposition

The amount of isomelamine impurities formed in the reaction of melamine and an alkanolamine may be reduced by using isopropanolamine as the alkanolamine.

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Bethel, CT, United States of America

William F Jacobs, Iii