acetal

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acetal

[′as·ə‚tal]
(organic chemistry)
CH3CH(OC2H5)2 A colorless, flammable, volatile liquid used as a solvent and in manufacture of perfumes. Also known as 1,1-diethoxyethane.
Any one of a class of compounds formed by the addition of alcohols to aldehydes.
References in periodicals archive ?
Suppliers of acetal say the inherent non-stick property of the resin no longer prevents good adhesion when overmolding with SEBS thermoplastic elastomers.
Examples are a cyclic acetal named Vulkazon AFS and an enol ether named Vulkazon AFD.
Protonation of the hemi-acetal hydroxyl, followed by the loss of water, produces an oxonium ion which quickly attacks the adjacent hydroxyl on PVOH to yield the cyclic acetal.
This report was created for strategic planners, international marketing executives and import/export managers who are concerned with the market for acetals, hemiacetals, and their halogenated, sulfonated, nitrated, or nitrosated derivatives in the United States.
A properly packed out acetal part produced at the correct mold temperature will exhibit continued shrinkage of about 0.
The traditional route of using halogenated FR systems is not an option with acetals because of the violent reaction that these polymers undergo with any chlorinated or brominated substances.
Aartel acetal copolymers include general-purpose, impact-modified, and antimicrobial grades.
For parts that must withstand higher temperatures or more aggressive chemicals than standard nylons and acetals can, DuPont offers two new Zytel HTN highperformance PPA-based polyamide resins.
Other new Delrin acetal resins make possible the injection molding of flat shapes and large parts without the warp problems associated with standard acetals.
Dry color, color concentrates and compounds for PE, PS, PP, ABS, SAN, PC, nylons, NAS, K-Resin, acrylics, urethanes, butyrate and acetals.
Said to be the first acetal developed specifically for commercial meltblown nonwoven fabrics, Celcon acetal copolymer grade FG40U01 is designed to exceed conventional acetals in the ability to provide greater stability in extrusion on both older and the most up-to-date equipment, especially equipment for processing polypropylene (PP).
Its stiffness, strength, and toughness are similar to standard medium-viscosity acetals.