1.6- Hexanediol diisocyanate

HEXAMETHYLENE DIISOCYANATE (Isocyanic acid, hexamethylene ester 1, 6-Hexanediol, diisocyanate)... 

SYNS DESMODUR H DESMODUR N HEXA-METHYLENDIISOKYANAT HEXAMETHYLENE DIISOCYANATE HEXAMETHYLENE DIISOCYANATE (DOT) HEXAMETHATENE-l, 6-DIISOCYANATE 1,6-HEXAMETHYLENE DIISOCYANATE 1,6-HEXANEDIOL DIISOCYANATE HMDI ISOCYANTC ACID, DIESTER with 1,6-HEXANEDIOL ISOCYANIC ACID, HEXAMETHYLENE ESTER METYLENO-BIS-FENYLOIZOCYJANIAN SZESCIOMETYLEN-ODWU IZOCYJANIAN TL 78... 

The Polyurethane Polymer of 2-Nitro-2-Aza-1,4-Butane Diisocyanate and 5,5-Dinitro-1,2-Hexanediol. 

The Postnitrated Polyurethane Polymer of 3,3-Din itro-1,5-Pentane Diisocyanate and 5,5-Din itro-1,2-Hexanediol. 

Figure 1. Infrared spectra for a toluene diisocyanate modified hydantoin epoxy/2-ethyl-l,3-hexanediol oligomer showing the OH and NH bands of the oligomer as a function of temperature in uncatalyzed and catalyzed formulations.

A synthetic approach to poly(ester-urethanes) was recently published by Xue et al. [48]. Glycerol was employed as a trifunctional initiator in the enzymatic ROP of CL. The three-arm PCL triol was then reacted with methylene-diphenyl diisocyanate (MDI) and hexanediol to yield a three-arm PCL-based poly(ester-urethane) with shape-memory properties. 

Baumgart et aL (3) prepared scratchproof, radiation-curable film-forming coatings by condensing siloxane tetraol, hydroxylethyl acrylate, and hexanediol diacrylate with excess hexamethylene diisocyanate catalyzed by dibutyltin dilaurate. 

Mixtures of isocyanates are commonly used for convenience in commercial production of the diisocyanate, since the pure toluene 2,4-diisocyanate is more expensive to produce. The resulting prepolymer is then mixed with either a glycol, such as 1,6-hexanediol, or a deactivated (sterically hindered) diamine plus pigment if required, and then promptly poured into a preheated mold of the desired shape. In about half an hour the mixture sets to a pliable shape with stiffness and elasticity controlled by the components and processing details used [29]. Similar procedures produce high-strength polyurethane fiber (e.g., Perlon U) or elastomeric fibers (e.g., Spandex and Lycra). 

Many polyurethenes for biomedical applications are available from commercial manufacturers (see Table A.2) Biomer (Ethicon) is composed primarily of methylenediphenylenediisocyanate, ED, and PTMO (2 1 1), see [42] Biomer and Pellethane were used in the artificial-heart program at the University of Utah. Medtronics produces polyurethanes Biostable C-19 and Biostable C-36 using cyclohexane-1,4-diisocyanate, 1,6-hexanediol, and soft segments with 18 or 36 carbons. 

When an oil-soluble monomer and a water-soluble monomer reside in their respective oil and aqueous phase, respectively, they react at the miniemulsion droplet surface, thereby forming the nanocapsules. Torini et al. have shown that interfacial polycondensation of isophorone diisocyanate (IPDI) and 1,6-hexanediol in cyclohexane-water mini ulsions stabilized with SDS resulted in stable polyurethane nanocapsules with a diameter of around 200 nm and narrow size distribution. A critical SDS concentration higher than 1 wt%, relative to the organic dispersed phase, is required to ensure the stability of the miniemulsion and nanocapsules. Hexadecane was used as costabilizer, and the surfactant-to-costabilizer ratio, varied between 1 1 and 1 3, has no influence on the size and size distribution of the miniemulsion and nanocapsules. The nanocapsules obtained in such conditions are stable over 18 months, without any increase in the z-average diameter and the zcto-potential. 

Poly-jl,4- Butanediol - Hexamethylene Diisocyanate) Poly-jl,6- Hexanediamine - Sebacic Acid) Poly-(1,6-hexanediol - Sebacamide)... 

HC yellow no. 4. See HC yellow 4 HDA. See Hydroxylamine HDDA. See 1,6-Hexanediol diacrylate HD-Eutanol . See Oleyl alcohol HDI. See Hexamethylene diisocyanate HDI-based isocyanurate. See Hexamethylene diisocyanate polymer... 

Hexamethylene diisocyanate trimer. See Hexamethylene diisocyanate polymer Hexamethylenediol. See Hexamethylene glycol Hexamethylene distearate. See Hexanediol distearate... 

A polycarbonate TPE polyurethane that claims biostability is achieved through its replacement of virtually all ether or ester linkages with carbonate groups. The soft segment is composed of a polycarbonate diol formed by the condensation reaction of 1,6-hexanediol with ethylene carbonate. The polycarbonate diol is converted to a high molecular weight polyurethane by the reaction with 1,4-methylene bisphenyl diisocyanate (MDI) and 1,4-butanediol. It is reported to be resistant to environmental stress cracking as experienced with insulation on pacemaker lead wires. The polymer can be extruded, injection molded or compression-molded, and can be bonded with conventional urethane adhesives and solvents (Tables 4.4, 4.12, 4.13, and 4.14). 

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