Composition containing modified bisphenol f
AssigneeBakelite AG
InventorsStephan SCHRÖTER, Pravin KUKKALA, Ganapathy VISWANATHAN, Anthony MAIORANA, Athina KERKAIDOU
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Abstract
The invention relates to a composition that contains a binary mixture of bisphenol F and propoxylated bisphenol F. The aim of the invention is to provide aromatic polyols for preparing polyurethane-based and polyisocyanurate-based polymers, which ensure good handling from a technical point of view and good miscibility with the isocyanate component and render the end product flameproof. For this purpose, the invention devises a composition, which contains a binary mixture of ethoxylated bisphenol F and propoxylated bisphenol F in a weight ratio of 20:80 to 80:20.
Claims11
A composition comprising ethoxylated bisphenol F and
- propoxylated bisphenol F in a weight ratio of 20:80 to 80:20.
A process comprising:
- I)
- a) adding bisphenol F into a reactor and melting at temperatures between 120° C. and 160° C.
- b) adding an alkaline medium and heating to 180° C.
- c) adding ethylene carbonate and removal of the carbon dioxide
- d) optionally adding an acid for neutralization,
- II)
- e) adding bisphenol F into a reactor and melting at temperatures between 120° C. and 160° C.
- f) adding an alkaline medium and heating to 180° C.
- g) adding propylene carbonate and removal of the carbon dioxide
- h) optionally adding an acid for neutralization, or
- III) a combination of the components produced under (I) and (II), preferably in a solvent, to produce the binary mixture.
Dependencies are inferred from the claim text.