Example: quiz answers

High-performance solvents - BASF Intermediates

Intermediates High-performance solvents Glymes, 1,3-Dioxolane and 1,4-Dioxane BASF . We create chemistry At BASF, we create chemistry. Our portfolio ranges from chemicals, plastics, performance products and crop protection products to oil and gas. As the world's leading chemical company, we combine economic success with environmental protection and social responsibility. Through science and innovation, we enable our customers in nearly every industry to meet the current and future needs of society. Our products and solutions contribute to conserving resources, ensuring nutrition and improving quality of life. We have summed up this contribution in our corporate purpose: We create chemistry for a sustainable future.

3 High-performance solvents Glymes Glycol diethers, or glymes, are aprotic, saturated polyethers that offer high solvency, high stability in strong bases and

Tags:

  Performance, High, Solvents, High performance solvents

Information

Domain:

Source:

Link to this page:

Please notify us if you found a problem with this document:

Other abuse

Transcription of High-performance solvents - BASF Intermediates

1 Intermediates High-performance solvents Glymes, 1,3-Dioxolane and 1,4-Dioxane BASF . We create chemistry At BASF, we create chemistry. Our portfolio ranges from chemicals, plastics, performance products and crop protection products to oil and gas. As the world's leading chemical company, we combine economic success with environmental protection and social responsibility. Through science and innovation, we enable our customers in nearly every industry to meet the current and future needs of society. Our products and solutions contribute to conserving resources, ensuring nutrition and improving quality of life. We have summed up this contribution in our corporate purpose: We create chemistry for a sustainable future.

2 Top Intermediates supplier The BASF Group's Intermediates division develops, produces and markets a comprehensive portfolio of about 700. Intermediates around the world. Its most important product groups include amines, diols, polyalcohols, acids and specialties. Among other applications, Intermediates are used as starting materials for coatings, plastics, pharmaceuticals, textiles, detergents and crop protectants. Innovative Intermediates from BASF help to improve both the properties of final products and the efficiency of production processes. The ISO 9001 certified Intermediates division operates plants at production sites in Europe, Asia and North America. 2. High-performance solvents Glymes 1,3-Dioxolane Glycol diethers, or glymes, are aprotic, saturated polyethers 1,3-Dioxolane is an excellent solvent for polar polymers.

3 That offer high solvency, high stability in strong bases and It is used to produce coatings, films, in paint stripping moderate stability in acid solutions. Glymes efficiently solvate formulations, for photoresist removal and as a general cations, increasing anion reactivity, and thus can increase clean-up solvent for epoxy and urethane. both selectivity and reaction rates. Most glymes are water-soluble, but a range of solubility and boiling points are available. The polyether structure produces only weak associations between glyme molecules, and is 1,4-Dioxane responsible for the low viscosity and excellent wetting 1,4-Dioxane is an aprotic, relatively inert solvent capable of properties of these solvents .

4 Solubilizing a large range of organic and even some inorganic compounds and miscible with water in all proportions. It is A further structural feature of glymes that contributes ideally suited for use in closed-loop applications such as significantly to their usefulness involves the arrangement vented reactors for the manufacture of active pharmaceutical of oxygen atoms, as ether linkages, at two-carbon intervals. ingredients (APIs) and fine chemicals. The model of the diglyme molecule (picture above) illustrates this periodic recurrence of oxygen atoms separated by two carbon atoms. This steric arrangement, analogous to that of crown ethers, gives glymes the ability to form complexes with many cations.

5 Glycol diethers have a wide range of solubilities and boiling points. They are used as reaction solvents and in closed loop applications such as gas scrubbing and in refrigeration systems. The higher molecular weight glymes beginning with ethyl diglyme are suitable for emissive applications such as coatings, inks, adhesives and in cleaning compounds. The lower molecular weight glymes should not be used in emissive applications due to their reproductive toxicity. Content of the brochure: Glymes and their applications page 4. 1,3-Dioxolane page 12. 1,4-Dioxane page 13. Technical data page 14. 3. Glymes family product overview by boiling point Higlyme Highly ethoxylated diether of a high -molecular-weight alcohol [366009-01-0] BP Tetraglyme 275C BP CH3-O-(CH2CH2-O)4-CH3.

6 Polyglyme 277C Tetraethylene glycol dimethyl ether CH3-O-(CH2CH2-O)n-CH3 [143-24-8]. Poly(ethylene glycol) dimethyl ether BP Butyl diglyme [24991-55-7]. 251C CH3CH2CH2CH2-O-(CH2CH2-O)2-CH2CH2CH2CH3. Diethylene glycol dibutyl ether [112-73-2]. Triglyme BP. CH3-O-(CH2CH2-O)3-CH3. 216C. Triethylene glycol dimethyl ether [112-49-2]. Ethyl diglyme CH3CH2-O-(CH2CH2-O)2-CH2CH3 BP. Diethylene glycol diethyl ether 189C. Proglyme [112-36-7] BP CH3-O-(CH2 CHCH3-O)2-CH3. 175C Dipropylene glycol dimethyl ether [111109-77-4]. BP Diglyme 160C CH3-O-(CH2CH2-O)2-CH3. Diethylene glycol dimethyl ether [111-96-6]. Ethyl glyme BP. CH3CH2-O-CH2CH2-O-CH2CH3. 121C. Ethylene glycol diethyl ether [629-14-1].

7 Monoglyme BP. 84C CH3-O-CH2CH2-O-CH3. Ethylene glycol dimethyl ether [110-71-4]. Common name Structure IUPAC name Chemical abstract service registry number [CAS]. 4. Glymes for High-performance coatings BASF's selection of High-performance solvents enables coatings formulators to maximize performance . Higlyme and proglyme are powerful co- solvents that strongly complexes with pigments in coating formulations. Higlyme Proglyme VOC-exempt in Europe Dipropylene glycol derived 6% VOC in the United States Long used for one- and two-component polyurethanes Most powerful emulsifier Emulsify and improve the appearance of coatings Superior wetting agent Part of the P-series glymes with excellent toxicity profile Coalescent with high solvency and low odor Glymes compared to common ester alcohol and PCBTF.

8 Higlyme Proglyme Common PCBTF. ester alcohol Glycol diether P-series Ester alcohol Halogenated Chemical description glycol diether aromatic Coalescent yes yes yes no Odor mild ethereal mild ethereal ester no US VOC-exempt? no no no yes Rel Evap. rate (nBuAc = 1) < BP [C] 275 175 254 139. Density [g/ml] % in H2O 100 37 0. % H2O in 100 0. Specific heat [J/g K] The mechanical properties of components made of glassfiber-reinforced epoxy resins are determined by means of state-of-the-art testing equipment. 5. Glymes in High-performance inks Graphics arts ink solvents Glymes are useful in a variety of ink formulations, including Glymes are also used in formulations of deletion fluids for inkjet inks that are stable and do not clog tiny orifices, positive printing plates, as retouching agents for lithographic high -end writing inks with low viscosity and good stability, printing, waterless lithographic plates, and in cleaning agents conductive inks and pastes, as well as magnetic inks.

9 For removing inks from printing machines. Glymes are usefull as well in correction fluids and re-touching liquids for toner images, in photosensitive coating solutions in Use inks formulated with BASF High-performance diazo processes, in alkaline processing solutions in diffusion solvents to: transfer photography. For desensitizing compositions for Maximize color print quality and durability pressure-sensitive copying paper. Additionally, they are used Increase cartridge reliability and endcap/idle times as low-odor white-board cleaners. Eliminate odor and toxic solvents Minimize dispersant and pigment cost Choose boiling points to control droplet size and For bright and durable inks to concentrate dyes on the surface Ink formulators use solvents as key ingredients to improve image appearance and durability.

10 The ability of glycol diethers Properties to disperse pigments in aqueous and solvent-based systems enables formulators to reduce cost and increase ink stability. high solvency provides stability and maximum The choice of mix of medium boiling point controls evapo- color density ration rate, to keep the pigment or dye concentrated on the Strongly complexes with pigments paper suface, for maximum color density. Low odor Prevents inkjet clogging Acts as an emulsifier and humectant Higlyme and Tetraglyme are 94% non-VOC by EPA method 24. Aqueous coating compositions useful in coating substrates immediately after printing with oil-based inks contain glymes. These coatings accelerate bonding and drying of the ink, which permits faster printing.


Related search queries