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Urethane curatives.

ARKEMA INC. TECHNICAL POLYMERS

Dimethylaminoethanol (DMAE) is an effective, economical amine catalyst for flexible and rigid PUR foams. Reportedly reduces viscosity of the polyol mix, offers solvent properties to help disperse polyol-mix components, and provides good latitude in adjusting cream and rise times. When combined with tin catalysts, DMAE gives more independent control of foaming reaction than other amine catalysts.

BAYER MATERIALSCIENCE LLC

Complete line of aliphatic and aromatic poly-isocyanate crosslinkers based on HDI, IPDI, TDI, and MDI.

CATALYST SYSTEMS, INC.

Anhydrous benzoyl peroxide finely divided, smooth dispersion in plasticizers that can be used in systems where water cannot be tolerated.

AU 50 polymerized initiator, catalyst, or hardener is primarily designed for use in urethane resin systems and can be used in unsaturated polyester systems, vinyl ester resins, vinyl monomers, etc. Water content is less than 1%. A low-viscosity product, AU 50 is suitable for pouring and pumping. Custom formulations available.

CHEMTURA CORP.

Offers a variety of amine and polyol-based curative and chain extenders for elastomers. These include 1,4-butanediol, Caytur 21 and 31 delayed-action amine curatives, HQEE diol chain extender, MBCA, Ethacure 300 aromatic diamine alternative to MBCA, ethoxylated trimethylopropane, and three Vibracure diols.

KENRICH PETROCHEMICALS, INC.

Organotitanates act as urethane catalysts via a polyol-alcoholysis/NCO-alkylation mechanism. In a two-component RIM PUR, KR 55 titanate produces a faster gel than dubutyltin dilaurate. KR 44 amino titanate is said to provide higher ultimate tensile strength at significantly lower cost than dibutyltin dilaurate. Tg for urethane cured with KR 44 is higher than when cured with tin. Neoalkoxy titanates reportedly provide increased thermal and solvolytic stability.

MOMENTIVE PERFORMANCE MATERIALS INC.

Markets Niax silicone surfactants, Niax amine catalysts, and Geolite modifiers for polyurethane foam and elastomers. Key market segments served are slab foam, molded foam, rigid foam and microcellular and elastomers.

RIT-CHEM CO. INC.

MOCA (4,4'-methylene-bis-(ortho-chloroan-iline) polyurethane resin curing agent for reaction with prepolymer products of TDI (toluene di-isocyanate).
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Title Annotation:product lines reviewed
Publication:Plastics Technology
Date:Nov 1, 2012
Words:319
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