- Patent Number:
11981,816
- Appl. No:
17/814970
- Application Filed:
July 26, 2022
- نبذة مختصرة :
The present disclosure relates to a rubber composition comprising at least rubber, and reinforcement materials, the reinforcement materials comprising silica particles and Kraft lignin nanoparticles, wherein the phr ratio between the silica particles and Kraft lignin nanoparticles is ranging between 3 and 20; wherein the Kraft lignin nanoparticles have an average diameter size ranging between 10 and 100 nm as determined by scanning electron microscopy; and wherein the Kraft lignin nanoparticles have a glass transition temperature of at least 150° C. as determined by Differential Scanning Calorimetry.
- Inventors:
The Goodyear Tire & Rubber Company (Akron, OH, US); LUXEMBOURG INSTITUTE OF SCIENCE AND TECHNOLOGY
- Assignees:
THE GOODYEAR TIRE & RUBBER COMPANY (Akron, OH, US)
- Claim:
1. A rubber composition comprising at least rubber and reinforcement materials, the reinforcement materials comprising silica particles and Kraft lignin nanoparticles, wherein the phr ratio between the silica particles and Kraft lignin nanoparticles is ranging between 3 and 20; wherein the Kraft lignin nanoparticles have an average diameter size ranging between 10 and 100 nm as determined by scanning electron microscopy, and wherein the Kraft lignin nanoparticles have a glass transition temperature of at least 150° C. as determined by Differential Scanning Calorimetry.
- Claim:
2. The rubber composition of claim 1 , wherein the Kraft lignin nanoparticles have a single glass transition temperature of at least 150° C.; or wherein the Kraft lignin nanoparticles have a first and a second glass transition temperature with the first glass transition temperature ranging between 110° C. and 130° C. and the second glass transition temperature of at least 150° C.
- Claim:
3. The rubber composition of claim 1 , wherein the content of silica particles is ranging between 90 phr and 150 phr.
- Claim:
4. The rubber composition of claim 1 , wherein the content of the reinforcement materials is ranging between 100 phr and 180 phr.
- Claim:
5. The rubber composition of claim 1 , wherein the silica particles are made of or comprise amorphous silica.
- Claim:
6. The rubber composition of claim 1 , wherein it further comprises one or more process oils selected from treated distillate aromatic extracts, mild extracted solvate or treated residual aromatic extracts.
- Claim:
7. The rubber composition of claim 1 , wherein it further comprises one or more process oils present in a content ranging between 5 phr and 50 phr.
- Claim:
8. The rubber composition of claim 1 , wherein it further comprises one or more process oils and the phr ratio between the reinforcement materials and the one or more process oils is ranging between 3.5:1 and 8:1, and wherein the weight average molecular weight of said at least one rubber is ranging between 400,000 g/mol and 1,000,000 g/mol as determined by GPC according to ASTM D5296-11.
- Claim:
9. The rubber composition of claim 1 , wherein the Kraft lignin nanoparticles have a Young's modulus ranging between 1.0 GPa and below 3.0 GPa as determined by Atomic Force Microscopy or between 3.0 GPa and 6.0 GPa.
- Claim:
10. The rubber composition of claim 1 , wherein said rubber is or comprises styrene-butadiene rubber.
- Claim:
11. The rubber composition of claim 10 , wherein said styrene-butadiene rubber has a styrene microstructure content within a range of 20 wt. % to 50 wt. % based on the total weight of the styrene-butadiene rubber and a vinyl microstructure content within a range of 10 wt. % to 50 wt. % based on the total weight of the styrene-butadiene rubber.
- Claim:
12. The rubber composition of claim 10 , wherein said styrene-butadiene rubber has a glass transition temperature ranging between −50° C. and −85° C. and wherein the rubber composition further comprises from 15 phr to 40 phr of at least one hydrocarbon resin, from 5 phr to 25 phr of said one or more process oils, and wherein the sum of the amount of said at least one hydrocarbon resin and the amount of the one or more process oils is ranging between 35 phr and 50 phr.
- Claim:
13. The rubber composition of claim 12 , wherein the rubber composition further comprises at least one polybutadiene rubber having a glass transition temperature which is ranging between −85° C. to −115° C.
- Claim:
14. A rubber composition comprising at least rubber, one or more process oils, and reinforcement materials, the reinforcement materials comprising silica particles and Kraft lignin nanoparticles, wherein the phr ratio between the silica particles and Kraft lignin nanoparticles is ranging between 3 and 20; wherein the Kraft lignin nanoparticles have a specific surface area ranging between 70 m 2 /g and 430 m 2 /g as determined by BET experiments; and wherein the Kraft lignin nanoparticles have a glass transition temperature of at least 150° C. as determined by Differential Scanning Calorimetry.
- Claim:
15. The rubber composition of claim 14 , wherein the Kraft lignin nanoparticles have a transmittance to ken at a wavelength of 600 nm ranging between 40% and 80% as determined by absorption analysis.
- Claim:
16. The rubber composition of claim 14 , wherein said rubber is or comprises one or more selected of styrene-butadiene rubber, neodymium polybutadiene rubber, polybutadiene rubber, cis-polybutadiene rubber, polyisoprene rubber, styrene-isoprene rubber, styrene-isoprene-butadiene rubber, ethylene propylene rubber, ethylene propylene diene monomer/butyl rubber, copolymer or blends of any of previously-mentioned rubbers.
- Claim:
17. The rubber composition of claim 14 , wherein the Kraft lignin nanoparticles are present in a content ranging between 10 phr and 30 phr.
- Claim:
18. The rubber composition of claim 14 , wherein the Kraft lignin nanoparticles have an average diameter size ranging between 10 and below 30 nm as determined by scanning electron microscopy or between 30 and 60 nm.
- Claim:
19. The rubber composition of claim 14 , wherein said rubber composition is sulphur cured.
- Claim:
20. A tire with a tire tread, where said tire tread comprises a rubber composition according to claim 1 .
- Patent References Cited:
9102801 August 2015 Dirk et al.
9205704 December 2015 Sandstrom et al.
20100204368 August 2010 Benko et al.
20190232718 August 2019 Halasa et al.
WO-2019131397 July 2019
- Other References:
Barana et al., Influence of lignin features on thermal stability and mechanical properties of natural rubber compounds, ACS Sustainable Chemistry & Engineering, 2016, 34 pages, ACS Paragon Plus Environment, ACS Publications, American Chemical Society. cited by applicant
Barana et al., Lignin based functional additives for natural rubber, ACS Sustainable Chemistry & Engineering, 2018, 34 pages, ACS Paragon Plus Environment, ACS Publications, American Chemical Society. cited by applicant
Dessbesell et al., Global lignin supply overview and kraft lignin potential as an alternative for petroleum-based polymers, Renewable and Sustainable Energy Reviews 123, 2020, http://www.elsevier.com/locate/rser, 109768, Elsevier Ltd. cited by applicant
Flory et al., Statistical Mechanics of CrossLinked Polymer Networks II. Swelling, The Journal of Chemical Physics, 1943, 7 pages, vol. 11, No. 11. cited by applicant
Gillet et al., Lignin Transformations for High Value Applications: Towards Targeted Modifications Using Green Chemistry, Green Chemistry Accepted Manuscript, 2017, pp. 1-31, 00, Royal Society of Chemistry. cited by applicant
Hait et al., Treasuring waste lignin as superior reinforcing filler in high cispolybutadiene rubber: A direct comparative study with standard reinforcing silica and carbon black, Journal of Cleaner Production 299, 2021, pp. 1-12, 126841, Elsevier Ltd. cited by applicant
Kocun et al., Fast, High Resolution and Wide Modulus Range Nanomechanical Mapping with Bimodal Tapping Mode, ACS Nano, 2017, pp. 1-30. cited by applicant
Ko{hacek over (s)}íková et al., Sulfur-Free Lignin as Reinforcing Component of Styrene-Butadiene Rubber, Institute of Chemistry, 2005, pp. 924-929, vol. 97, Journal of Applied Polymer Science,. cited by applicant
Labuda et al., Generalized Hertz model for bimodal nanomechanical mapping, Beilstein J. Nanotechnol, 2016,, pp. 970-985, 7. cited by applicant
Yearla et al., Preparation and characterisation of lignin nanoparticles: evaluation of their potential as antioxidants and UV protectants, Journal of Experimental Nanoscience, 2016, 15 pages, vol. 11, No. 4, Taylor & Francis. cited by applicant
Zou et al., Polymer/Silica Nanocomposites: Preparation, Characterization, Properties, and Applications, Chemical Reviews, 2008, pp. 3893-3957, vol. 108, No. 9, American Chemical Society. cited by applicant
- Primary Examiner:
Hall, Deve V
- Attorney, Agent or Firm:
Willis, Mandy B.
- الرقم المعرف:
edspgr.11981816
Processing Request
No Comments.