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US 11,248,118 B2Granted
Tackifier for rubber compositions
AssigneeBASF SE
InventorsFelix Alexander Westerhaus, Frank Reuter, Dieter Rodewald, Olivier Fleischel, Stephan Schlitter, Martin Voelkert, Fritz Nimtz, Ulrich Abel, Guenter Scherr
Life of this patent
Estimating the term…
Abstract
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 aliphatic hydrocarbon group with up to 20 carbon atoms and a non-aromatic compound which consists to at least 50% by weight of one or more linear or branched, saturated or unsaturated aliphatic hydrocarbon groups with at least 4 carbon atoms.
Claims13
A tackifier, comprising:
- a resin with repeating units of the following 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 aliphatic hydrocarbon group with up to 20 carbon atoms;
- and
- a non-aromatic compound comprising at least 50% by weight of one or more linear or branched, saturated or unsaturated aliphatic hydrocarbon groups with at least 4 carbon atoms;
- wherein the non-aromatic compound is a fatty acid or a fatty alcohol, and
- wherein the tackifier is solid, and wherein the tackifier has a glass transition temperature in the range of 60° C. to 150° C.
3 more elements
Dependencies are inferred from the claim text.