Texanol

The monoisobutyrate ester of trimethylpentanediol is especially useful as a coalescing aid in flat and semigloss (48) latex pain formulations (see Paint). This product is commercially available from Eastman as Texanol ester alcohol. 

Isobutyraldehyde also undergoes consecutive aldol and Tischenko condensations to give 2,2,4-trimethyl-l,3-pentanediolmonoisobutyrate [25265-77-4] (Texanol, Filmer IBT), alternatively prepared by the esterification of TMPD with isobutyric acid. 

The monoisobutyrate ester of TMPD, Texanol, or Filmer IBT, formally an isobutyraldehyde trimer, is prepared in a single step from isobutyraldehyde or, alternatively, by the esterification of TMPD with isobutyric acid. This monoester is most commonly employed as a coalescing agent for latex-based paints and water-based ink formulations. 

Conditions syn gas pressure 16bar, [Rh] = 1.5 mM, ligand/Rh = 2.4,95-125 °C, solvent 22.4-triinethyl pentane-1,3-diolmonoisobutyrate (Texanol), propene pressure 5 bar. Other sources used different conditions and alkenes. 

Fluorad fC-120 fIuorochemical surfactant SWS-211 silicone anti foam agent Ektasolve DE glycol ether Ektasolve DM glycol ether Texanol ester alcohol... 

In order to remove the undesirable Texanol, ve extracted the pigment with supercritical carbon dioxide which was held at a low pressure (100 atm) for five minutes. The extract was found to contain Texanol. We increased the carbon dioxide pressure to 400 atm for five minutes to extract the pigment additive. The pressure control in SFE allows us to control the solubilizing power of the carbon dioxide, therefore, perform selective extractions. 

To be able to predict the release of SVOCs from a material to the indoor environment it is important to understand the fundamental mechanisms in order to mathematically model the emissions. The emission behavior of DEHP from PVC in the FLEC and CLIMPAQ experiments (Clausen et al., 2004) have now been successfully modeled (Xu and Little, 2006). Fluid building materials such as paints (Clausen, 1993 Xu and Little, 2006) and wood oil (Clausen, 1997) may also emit SVOCs and are usually used on large indoor surfaces such as walls, ceilings and floors. Such wet materials may be applied on substrates like wood or plaster board. The emission of for example, Texanol from water-based paint was found likely to be limited by gas phase mass transport (Clausen, 1993) similar to the DEHP emission from PVC (Clausen et al., 2004). 

Lundgren et al. (1999) evaluated the field exposures of painters to a low-VOC and a conventional water-based paints in Sweden. They found that exposures to TVOC, 1,2-propylene glycol, acetaldehyde and ammonia were 3-12 times lower for the low-VOC paint, but exposure to formaldehyde (160-180 pgm ) was 3-4 times higher. Brown (2000) reported that emissions from four Australian VOC-free paints included typical aromatic VOCs, dibutyl ether, ethylene glycol butyl ether, diethylene glycol butyl ether and Texanol , though at order of magnitude reduced levels c.f. conventional water-based paints, as well as formaldehyde and benzaldehyde. 

Trimethyl 1,3-pentanediol mono-isobutyrate (Texanol) Vinyl acetate... 

Particle deformation and polymer diffusion can only occur at temperatures above the glass transition temperature of the polymer. Final coatings, however, are required to be at temperatures considerably below the glass transition temperature. To get around this problem, it is common to add plasticizers to water borne latex dispersions to lower the glass transition temperature of the constituent polymer during the film formation process. Subsequent evaporation of the plasticizer results in a hard final coating. A common plasticizer is 2,2,4-trimethyl-l,3-pentanediol monoisobutyrate, usually referred to as Texanol Ester Alcohol. 

VOCs in latex paint (e.g., Texanol) desorb very, very slowly. 

The solvent composition is reported to be a mixture of texanol and carbowax. The catalysts showed excellent selectivity to linear aldehydes, up to 96% depending on the reaction conditions [8]. 

TEXANOL (25265-77-4) Combustible liquid (flash point 248°F/120°C oc). Incompatible with strong acids, nitrates, oxidizers. 

Isobutyric acid, ester with 2,2,4-trimethyl-1,3-pentane-diol. Chissocizer CS 12 CS 12 EINECS 246-771-9 Isobutyraldehyde Tishchenko trimer Isobutyric acid, ester with 2,2,4-trimethyl-1,3-pentanediol 1,3-Pentanediol, 2,2,4-trimethyl-, monoisobutyrate Propanoic acid, 2-melhyl-, monoester with 2,2,4-trimethyl-1,3-pentanediol Texanol Texanol Ester-Alcohol 2,2,4-Trimethyl-1,3-pentanediol monoisobutyrate. Liquid bp = 244° d = 0.9500. Chisso Corp. Eastman Chem. Co. 

Substance 1,2-PGMM 1,2-PG EGMB 1,2-PGMB DEGMB EGMP Texanol... 

Esters (solvents) n-Butyl acetate, wo-butyl acetate, ethyl acetate, l-butanol-3-methoxy acetate, l-ethoxy-2-propyl acetate, 1- methoxy-2-propyl acetate, Texanol, TXIB, 2- (2-butoxyethoxy)-ethyl acetate Solvent-based systems... 

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