Benzoflex™ by Eastman Chemical Company is a high solvating plasticizer known for its exceptional performance in PVC, polyvinyl acetate and. Product name: Benzoflex(TM) Plasticizer. Product No.: EAN , P, P, P, P, P For example, Benzoflex™ LC plasticizer was designed to Benzoflex™ is a high solvating plasticizer known for its exceptional.
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Front page Contents Previous Next. It is marketed by Lanxess formerly Bayer under the product name Mesamoll. The table also indicates the level of market experience in each application area according to Lanxess ; interpreted from qualitative text by the report authors. Note that Lanxess has indicated significant market experience for most applications, indicating both general plasticiser characteristics and coverage of several of the special performance characteristics of DBP and BBP.
A Danish study Nilsson et al. Market experience categories interpretation: Key characteristics Table 5. Effectiveness indicator, also called substitution factor, indicating the concentration of plasticiser in PVC needed, compared to DEHP, to achieve a specified flexibility according to a well defined method.
DEHP has substitution factor 1 per definition, while plasticisers needing lower concentration more effective have lower values, and plasticisers needing higher concentrations have higher effectiveness value. According to Lanxess,b. As shown, performance parameters are quite close to DEHP’s, except for a higher resistance to kerosene jet-fuel, lipophilic solvent.
Wilson states, that were it not for the higher prices of ASE, it could easily be used as an alternative to the general purpose phthalate plasticisers in a benzpflex range of applications.
Its structure gives it some advantages over phthalates for certain processes and aggressive environments. The higher polarity results in faster gelling speed than can be achieved with other plasticisers at similar molecular weight and volatility. ASE has high resistance to degradation from weathering, microorganisms and alkaline media. Conclusions Based on the above mentioned, it seems reasonable to conclude that ASE appears – based on technical henzoflex only – to be an actual general plasticiser alternative to DEHP.
ASE was reported as used for toys by Danish toy manufacturers with contract production in Chinabut was not found in the surveys of plasticisers in toys in the Netherlands and Switzerland.
The significantly higher price currently may, however, likely be an impediment to widespread substitution. The potential for attaining reduced prices with increased production volume has not been investigated by the research made for this study. ATBC consists of citrate with three ester bonded butyl groups and one acetyl group bonded to the fourth available oxygen atom, see the structure below.
ATBC has mostly been used in products used for sensitive purposes such as medical products food contact products and children’s toys.
It is, however, too extractable to be useful in some of the applications in the medical area where contact with lipids is important. For such bennzoflex, the larger molecule n-butyryltri-n-hexyl Citrate is recommended by Vertellus. ATBC also has similar characteristics to some of the lower molecular weight phthalates in a variety of polymers. ATBC is widely used in food contact polymers. It provides many improvements over DBP benzotlex cellulose nitrate films, including lower volatility, better resistance to yellowing, and better adhesion to metals.
ATBC is effective in solution coating both paperboard and foil. It is a good plasticizer for vinyl toys. ATBC Special is developed and recommended for medical articles and similar sensitive benzorlex. It is manufactured in a unique, patented process. The table also indicates the level of market experience in each application area benzoclex to Vertellus Note that Vertellus has indicated significant market experience for toys, medical articles, and certain non-polymer applications substituting for both DEHP, DBP and BBP, indicating both general plasticiser characteristics and coverage of some of the special performance characteristics of DBP and BBP.
Key characteristics According to ECPI, acetyl tributyl citrate is traditionally used in electrical coatings and casings because of its solvating characteristics. It is also used in inks, hair sprays and aerosol bandages ECPI, T4 and Tf are torsion flex indicators at specific conditions see Vertellus, b. According to the reference, extraction and volatilization properties can be adjusted by adding another plasticiser, for example the less expensive epoxidized soybean oil ESO.
Efficiency indicator, also called substitution factor, indicating the concentration of plasticiser in PVC needed, compared to DEHP, to achieve a specified flexibility according to a well defined method. However it suffered from a variety of technical drawbacks when compared with DINP. For instance ATBC would not take decoration, it had high migration into adjacent materials leading to swelling and splitting, and there was a need for tooling changes.
These blends could be used in many cases as one-to-one replacements for DINP so that major changes to designs and tooling were not necessary. The producer, Vertellus, has indicated significant market experience for toys, medical articles, and certain non-polymer applications substituting for both DEHP, DBP and BBP, indicating both general plasticiser characteristics and coverage of some of the special performance characteristics of DBP and BBP.
It was also reported as benzofflex for toys by Danish toy manufacturers with contract production in China ; used alone it did however not perform adequately in the established toy production setup due to migration to adjacent materials, print resistance, etc. The higher extractability in aqueous solutions and the higher volatility may reduce the performance of ATBC as a plasticiser in PVC, and could perhaps limit its use for certain applications.
Similarly, the extractability in medical appliances benzodlex lipid fat contact may perhaps limit its use for certain medical applications. The other main component ca. In the following technical text, this mixed product is therefore described. The CAS number of the mixture is COMGHA is an efficient, one-to-one replacement for most conventional plasticisers, such as phthalates.
In tests, the quality, durability and functional properties achieved have proven equivalent to phthalate-based solutions.
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The test results show that COMGHA meets all requirements in the extrusion, calendaring and injection moulding applications where it has been evaluated. In medical applications where plasticiser migration is a particular concern, COMGHA demonstrated high extraction resistance in aqueous and oily solvents. This makes it a viable genzoflex for applications that demand low volatility. Although the novel plasticiser is more volatile than a high end permanency plasticiser as TOTM, the lower loading level required means overall volatility is reduced.
The table also indicates the level of market experience in each application area according to Danisco According to Danisco, the beans must be handpicked which sets limits to production volume and cost reductions Danisco, Research is therefore ongoing to produce the substances from other, more abundant, biological substrates Buck Jensen, New research initiated needs yet to prove potential for increased production at lower prices.
DEGD is the esterification product of two benzoate groups with benzovlex glycol, see structural formula below. It is marketed by Genovique in a mixture with two other dibenzoates under the product name Benzoflex In this section, the mixed product is described. Note that DGD is described separately in the toxicological assessment. It displays good wet tack, set times and open times.
It also improves adhesion in acrylic latex caulks Genovique, b.
It has had its greatest success replacing phthalates in plastisol application, the largest of which is resilient flooring. Most plastisols were formulated with phthalates in mind, so utilizing an alternative chemistry, like benzoates, requires formulation adjustments Genovique, The table also indicates the level of market experience in each application area according to Genovique ; interpreted from qualitative text by the report authors. Note the significant market experience in several of the traditional DBP and BBP specialty plasticiser applications and certain DEHP applications, notably in the non-polymer adhesives, sealants, etc.
Key characteristics DGD is a commonly used benzoate. According to Krauskopf and Godwinbenzoates are generally strong solvates due to the high aromaticity, as are lower molecular weight phthalates such as BBP. BBPbenzoates, etc. Conclusions The producer, Genovique, has indicated significant market experience in several of the traditional DBP and BBP specialty plasticiser applications and certain DEHP applications, notably in the non-polymer adhesives, sealants, etc.
The higher extractability in water may limit its use for some applications. DGD is the esterification product of two benzoate groups with dipropylene glycol, see structural formula below. It is marketed by Genovique under the product name Benzoflex Producer’s description extracts DGD is a high solvating plasticizer that has been used for many years in a wide variety of applications.
Its diverse uses include resilient flooring, adhesives, artificial leather cloth and caulk Genovique, b. Note the significant market experience in sealants, adhesives, coatings and inks as well as in PVC spread coating plastisolsextrusion and injection moulding.
DGD is a commonly used benzoate. According to Krauskopf and Godwinit’s preferred use is in PVC flooring products, owing to its strong solvating strength, and it reportedly controls plasticiser bleeding into asphalt adhesives.
In vinyl sheet flooring, the benzoate enhances processing, while the low molecular weight contributes a hardened, stain resistant surface, due to volatilization, similar to the effect of BBP in flooring. Benzoates are generally strong solvents due to the high aromaticity, as are lower molecular weight phthalates such as BBP.
As shown, DGD has very similar characteristics to BBP on these parameters, except for a higher extractability in water.
Eastman | Benzoflex – Plasticizer
Wilson states that the consumption of benzoates had so far been minor in Europe although they were well known in the USA, where they were established plasticisers in the PVC flooring industry.
Here they were used as fast benzofoex stain resistant plasticisers. Wilson states the most commercially important benzoate as DGD, which bennzoflex broadly competitive with BBP, had the advantage of somewhat lower volatility. Wilson also emphasises that DGD had replaced much of the previous C4 phthalate use i.
In the mid s this substitution had not yet happened in Europe, partly due to higher benzoate prices in Europe, partly due to less regulatory health and environment pressure at that time. Otherwise DGD performed technically well compared to DEHP on all tested parameters, except for tensile strain at break and flexibility at low temperatures. BBP is mentioned as a bensoflex component in seals for insulating double glaz-ing BBP Information Centre,but it has not been specifically investigated whether DGD or other benzoates can substitute for BBP for this particular application.
Conclusions Genovique, the producer of DGD, has indicated significant 288 experience in sealants, adhesives, coatings and inks as well as in PVC spread coating plastisolsextrusion and injection moulding. Currently the effective price is only slightly higher than the price of BBP. As with many other substitution processes, a price decrease may occur if the market increases in 208 competition between producers. There are several other producers world wide. It offers good performance properties, good low temperature flexibility, resistance to extraction by soapy water and good non-migration properties.
In plastisols, DEHT results in low initial viscosity and good keeping viscosity. The table also indicates the level of market experience in each application area according to Eastman ; interpreted from qualitative text by the report authors. Note that Eastman has indicated significant market experience for all traditional DEHP uses, except car undercoating and benzoclex of ceramics.
Plastisols contain 60 phr plasticiser; benzoflfx and calendered PVC contains 50 phr plasticiser; phr meaning parts per parts hard PVC by weight. The volatility of DEHT is somewhat lower, and the extractability in water and kerosene is somewhat higher.