Curing Agents

Curing Agents

 

(also hardeners), substances that cause the hardening of reactive oligomers. Curing agents are divided into three groups, depending on their activity: (1) curing agents in which the molecules react with the functional groups of a given oligomer, thereby being incorporated into the structure of the resultant polymer; (2) initiators; (3) hardening catalysts.

References in periodicals archive ?
The certification was specifically granted to the Hexions blending operations of resins and curing agents.
Gabriel Performance Products, LLC manufactures epoxy and phenoxy additives, polyamide curing agents, and specialty chemicals.
Evonik has combined its isophorone chemistry and epoxy curing agents business in the new Crosslinkers Business Line effective.
Evonik Industries AG has combined its isophorone chemistry and epoxy curing agents business in a new Crosslinkers Business Line.
Chemical additive products supplied by the company include antioxidants, blowing agents and foam accelerators, co-agents and curing agents, elastomer accelerators, elastomer/thermoplastic processing additives and lubricants, ester plasticizers, functional and standard mineral fillers, metal oxides, hydroxides and stearates, mold releases and external lubricants, paraffin/microcrystalline, polyethylene, sugarcane, Fischer Tropsch waxes, polyethylene glycol (PEG, various grades), silane coupling agents and crosslinkers, specialty polymers such as various weights of polyisobutylene, and tackifier resins.
Evonik Industries AG will combine its isophorone chemistry and epoxy curing agents business in the new Crosslinkers Business Line effective July 1, 2017.
USPRwire, Fri Aug 28 2015] Epoxy Curing Agents Market by Type (Amines, Anhydrides, & Others), by Application (Coating, Wind Energy, Electronics, Construction, Adhesive, Composite, & Others), by Region, (North America, Europe, Asia-Pacific, & RoW) - Global Forecast to 2020
It is well known that curing agents can influence the formation of LC phase in epoxy networks.
That means two traditional curing agents for pork--nitrite and nitrate--aren't allowed in natural and organic products.
Examples include curing agents for hydrogels in medical products, personal care formulations, exfoliants, humectants, thickeners, anti-irritants, antimicrobials, lubricants, emulsifiers, delivery agents, coatings, and surfactants.
Because no curing agents are used, there is no grease transfer to the protected part.
0 g N-(2-hydroxyethyl)ethylenediamine were charged into the flask and stirred at 30[degree]C overnight to obtain polysiloxane modified amine curing agents (named as CPSA) for epoxy resins.