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US 11,498,997 B2Granted
Process for removal of volatile compounds from tackifiers
AssigneeBASF SE
InventorsMiran Yu, Ortmund Lang, Dieter Rodewald, Stephan Schlitter, Guenter Scherr, Felix Alexander Westerhaus
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Abstract
Process for the removal of volatile compounds from a tackifier comprising a resin with repeating units of formula I wherein R1 is a linear or branched alkylen group with 1 to 10 carbon atoms and R2 is a linear or branched, saturated or unsaturated N aliphatic hydrocarbon group with up to 20 carbon atoms, and optionally a plasticizer, wherein the tackifier is passed through at least one evaporator as film and the volatile compounds are removed from the film.
Claims20
A process for removing a volatile compound from a tackifier, comprising
- a resin with repeating units of the following formula I
- wherein R1 is a linear or branched alkylene group with 1 to 10 carbon atoms and R2 is a linear or branched, saturated or unsaturated aliphatic hydrocarbon group with up to 20 carbon atoms, and
- optionally a plasticizer,
- the process comprising passing the tackifier through at least one evaporator as a film and removing the volatile compound from the film,
- wherein said volatile compound comprise a compound of formula R2—C6H4—OH where R2 is a linear or branched, saturated or unsaturated aliphatic hydrocarbon group with up to 20 carbon atoms.
2 more elements
Dependencies are inferred from the claim text.