The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 26, 2019
Filed:
Sep. 21, 2017
Kraton Chemical, Llc, Jacksonville, FL (US);
Godefridus J. H. Buisman, Savannah, GA (US);
Jeffrey R Warmkessel, Savannah, GA (US);
Blaisdell B Willis, Savannah, GA (US);
Wolfgang Pille-Wolf, Almere, NL;
Kraton Chemical, LLC, Jacksonville, FL (US);
Abstract
Provided herein are novel tire tread compositions. The tire tread compositions include a rubber, a terpene-based resin and at least one filler. The terpene-based resin comprises one terpene-based monomer such as α-pinene, referred to as a hompolymer, or combinations of several terpene-based monomers selected from α-pinene, β-pinene, δ-3 carene, β-phellandrene and pyrolysates of α-pinene, β-pinene, δ-3 carene, δ-2 carene, turpentine, and combinations thereof. The terpene-based resin is generally substantially free of limonene. The terpene-based resin has a softening point of about 80° C. to about 130° C., a number average molecular weight (M) ranging from about 500 g/mol to about 775 g/mol and a glass transition temperature (T) of from about 38° C. to about 81° C. The tire tread composition having the terpene-based resin shows improvements of tan δ at 0°, wet grip and rolling resistance as compared with the compositions without the terpene-based resin or comprising alpha methyl styrene resin.