BIOBASED CHEMICALS
Figure 3 - Reactions as synthetic intermediate
solid detergents have been developed with GC , which hydrolyse in the wash liquor to form glycerol and provide excellent hand-feel performance .
Reactive applications
One important reactive application is in intumescent paints ( Figure 2 ), where it swells to protect the structure below or seal it off in the event of a fire , thus making the fire self-extinguishing . As its flash point is very high , the proportion of it in the formulation can be increased .
Due to its dual functionality , Daxsol GC may also be used as synthetic intermediate ( Figure 3 ), chain extender and cross-linker . This includes new uses , such as a reaction with amines to make urethane-bonding and -blocking agents for isocyanides , offering excellent properties .
Daxsol GC can be used to obtain an interesting chemical like glycidol ( Figure 4 ). It has several uses as perfumes and cosmetics , detergents , paints , pharmaceuticals , etc . It is a high value chemical and the process to obtain the
Figure 4 – Synthesis of glycidol from glycerol carbonate
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R
( S8CI ) o l
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Figure 5 - Figure 5 – Reaction process of NIPU
glycidol proceeds with simultaneous decarboxylation of GC .
Lastly , Daxsol GC acts as a reactive is in the synthesis of polyurethanes without isocyanates ( NIPU ). Using it eliminates the need for isocyanates , which are toxic and moisture-sensitive ,
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0 0
R 0
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.
0 ,
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with a synthesis based on hazardous phosgene . 3 Daxsol GC , by contrast , has a biobased origin and a low VOC profile . Figure 5 shows a representative reaction example , highlighting the optimised reaction conditions . ●
* - Daxsol is a registered trademark of UBE Corporation Europe SA
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J j
Belén Sanchez
BUSINESS DEVELOPMENT & MARKETING ENGINEER
UBE CORPORATION EUROPE , S . A . b . sanchez @ ube . com www . ube . com
References : 1 : J . Calleja , Materiales de Construcción Consejo Superior de Investigaciones Científicas , 1969 , 19 2 : D . Abraham , Electrolytes for Lithium and Lithium-Ion Batteries ( US 2011 / 0117445 A1 ). US Patent & Trademark Office 3 : Polym . Chem ., 2011 , 2 , 2661
66 SPECIALITY CHEMICALS MAGAZINE ESTABLISHED 1981