Bearing in mind that the choice of a silane is determined by the capacity of its organofunctional group to react with the organic polymer, two types of topcoat paints were selected: an alkyd/polyester
aminoplast base paint (BRUSINT SE GR1S 03650), supplied by ProCoat Tecnologias, S.L.[R], of an average thickness of 40 [mu]m, and an acrylic/urethane type paint of the same film thickness (RESISTEX C137), supplied by Leigh's Paints[R], only for the specimens pretreated with a 1% silane concentration (branch test).
A wholly-owned Subsidiary - Visionite (Private) Limited was set up in 1993 in Gadoon Amazai (NWFP) for the production of
Aminoplast Moulding Compound.
There is very little information available on another class of associative thickeners, HEAT (hydrophobically modified, ethoxylated
aminoplast).
Non-ionic associative thickeners available in the market today include hydrophobically modified, ethoxylated urethanes (HEUR), hydrophobically modified,
aminoplast ethers (HEAT), and hydrophobically modified cellulose derivatives (e.g., HMHEC--hydrophobically modified, hydroxyethyl cellulose).
(10.) Petersen, H, Fischer, K, Klug, H, Trimborn, W, "Preparation of Curable Etherified
Aminoplast Resins and of Surface Coating Resins." US Patent 4,621,133, 1986
Thames Best Paper Award was presented to Jeanne Courter of Cytec Industries for "Formulating industrial wood coatings with a novel formaldehyde-free crosslinker to replace conventional
aminoplast crosslinkers;" and the Outstanding Paper Award in New Coatings Technology was presented to Ernest Galgoci of Air Products for "Next generation coalescing surfactants for formulating low VOC coatings."
In the first course, industry experts will cover such areas as acid catalysts for
aminoplast crosslinking, including the mechanisms affected by acid catalysts, the use of mostly organo-sulfonic acids, and other acid catalyzed systems.
With the recent acquisition of Sud Chemie's rheological additives portfolio, we now offer a complete line of rheology additives for water and solvent based applications, including our revolutionary HEAT (Hydrophobically modified Ethoxylated
Aminoplast Thickener) technology for low, mid, and high shear rheology in aqueous systems.
Commercial alkyd resin, Beckosol[TM] 12-054, and
aminoplast crosslinker, Resimene[TM] 747, were supplied by Reichhold, Inc.
Course 1 features discussion on such areas as acid catalysts for
aminoplast crosslinking, including the mechanisms affected by acid catalysts, the use of mostly organo-sulfonic acids, and other acid catalyzed systems.
PPG Industries has been granted a crosslinking agent comprised of an ungelled reaction product of the following reactants: an
aminoplast resin and a monofunctional sulfonamide having only one active hydrogen.
increase for
aminoplast resins in the Americas; $0.20/kg increase for
aminoplast resins in Asia Pacific; 0.15 [euro]/kg increase for
aminoplast resins in Europe, Middle East and Africa.
"Formulating Industrial Wood Coatings with a Novel Formaldehyde-Free Crosslinker to Replace Conventional
Aminoplast Crosslinkers" -- Williams Jacobs and Barry Lawless, Cytec Surface Specialties
has been granted a patent for a powder coating composition comprising solid particulates of a mixture of an
aminoplast crosslinking agent, a solid polymer having functionality reactive with the
aminoplast crosslinking agent, and a crystalline, carbamate-functional material having a melting point of at least approximately 30[degrees] C in an amount sufficient to reduce the powder coating composition's melt viscosity at curing temperature, wherein the powder coating composition provides a smooth, cured coating.
* Epoxy, urethane,
aminoplast, unsaturated polyester, alkyd, silane/silicone, hybrid systems, active methylene group, etc.