Tech Alerts September 2022
Abstracts that tickle this reviewer's interest
Courtesy of Google Scholar
Year - Month: 2022-09
K Polaczek, E Kaulina, R Pomilovskis, A Fridrihsone… - Journal of Polymers and the …, 2022
… tall oil fatty acids and their methyl esters epoxidation in a rotating packed bed
reactor. The chemical structure of the synthesized epoxidized tall oil fatty acids and
epoxidized tall oil fatty acids … Gel permeation chromatography chromatograms of …
O Monaghan, S Skowron, J Moore, M Pin-Nó… - Polymer Chemistry, 2022
… Here we report the discovery and analysis of a self-crosslinking sustainable
terpene derived monomer, α-pinene methacrylate (αPMA). This monomer
undergoes crosslinking during free radical homopolymerisation and with …
H Siregar, A Suroso, S Djohar - Decision Science Letters, 2022
… merkusii, becomes the raw material for the gum rosin and turpentine oil industry.
Globally, … On average, Perhutani manufactures 65,000 tons of gum rosin and
14,000 turpentine oil per … the value of trade, especially exports of gum rosin and …
P Juera-Ong, K Pongraktham, YM Oo, K Somnuk - Catalysts, 2022
Acid catalysts including Amberlyst 15 and sulfuric acid were used for heterogeneous
and homogeneous catalyst reactions respectively, to reduce high free fatty acid (FFA)
in sludge palm oil (SPO) using an esterification process. The goal of this research …
[PDF]IONIC LIQUIDS AS ENTRAINERS FOR THE FRACTIONATION OFTERPENEMIXTURES
SM Vilas-Boas, AZ Coelho, G Teixeira, JAP Coutinho… - BOOK OF ABSTRACTS, 2022
… −, PF6−), as separation agents for the fractionation of terpene mixtures are
examined. The activity coefficients at infinite dilution ( 𝛾13∞) of … (ie, selectivity,
capacity, solvent performance index) were calculated for binary terpene mixtures …
[PDF]Effect of thermal variances on flexible pavements
MT TIZA, K JIRGBA, HA SANI, T SESUGH
This article presents recent findings on the effect of thermal variances on pavements.
It covers temperature measurement in asphalt pavement; the history of asphalt
pavement temperature prediction models, determination of asphalt layer depth …
A review on catalysts of biodiesel (methyl esters) production
I Riaz, I Shafiq, F Jamil, AH Al-Muhtaseb, P Akhter… - Catalysis Reviews, 2022
… Tall oil, a by-product of the Kraft process used to make pulp, might be used to
make fatty acid methyl ester. Tall oil is made up mostly of resin … While resin acids
are essentially unesterified as a result of the impeded effect, tall oil fatty acids are …
K Asgari, Q Huang, H Khoshdast, A Hassanzadeh - Mineral Processing and Extractive …, 2022
… Similarly, the frothability of this biosurfactant was compared with other frothers
such as Aerofroth-65 (A-65), Dowfroth-250 (DF-250), and pine oil. Results indicated
that based on the calculations of film elasticity, rhamnolipid biosurfactant has higher …
Biorefineries in Kraft pulp mills for biofuels production: A critical review
KD Oliveira, PHG Cademartori, GIB Muniz… - The Canadian Journal of Chemical …
… hydrogenating agent for biooil or crude tall oil catalytic upgrading. Kraft
biorefineries are gradually … The table also presents some properties of crude tall
oil[63], which will be discussed later in this work… This approach was successfully …
Studless tire
United States Patent 11433705 B2 · Filed: 02/27/2018 · Published: 09/06/2022
Assignee:
SUMITOMO RUBBER INDUSTRIES, LTD. (Kobe, JP)
Inventors:
Kunisawa, Tetsuya (Kobe, JP)
Ono, Shuichiro (Kobe, JP)
Uesaka, Kenichi (Kobe, JP)
Hatano, Seiji (Kobe, JP)
This patent describes the use of farnesene polymers in place of oils (often used in studless tires) for softening the rubber. However, the rubber formulators use a somewhat costly mixture of high Tg cyclopentadiene resins, terpene resins, and farnesene polymers (not resins) plus SBR and NR polymers to achieve useful viscosities. However, the patent does give Sumitomo some protection of its own which can be useful where environmental qualities are desirable.
Lubricating base oil synthesized from biosourced polyol and fatty acids esters
United States Patent 11453833 B2 · Filed: 01/29/2020 · Published: 09/27/2022
Assignee:
Arkema France (Colombes, FR)
Inventors:
Lebrun, Stéphanie (Serquigny, FR)
Gravelat, Salomé (Serquigny, FR)
Le, Guillaume (Serquigny, FR)
The esters from pitch processing might be useful feeds for producing low-cost lubricants.
Pneumatic tire having tread with three elastomers
United States Patent 11441018 B2 · Filed: 09/12/2019 · Published: 09/13/2022
Assignee:
The Goodyear Tire & Rubber Company (Akron, OH, US)
Inventors:
Ryba, Jennifer Lyn (Akron, OH, US)
Young, Philip Jordan (Twinsburg, OH, US)
This patent covers the use of pre-hydrophobated precipitated silica which results in an improvement in all three properties of the magic triangle of tire rubbers. The patent specification section is:
Also included in the rubber composition is from 60 to 80 phr of pre-hydrophobated precipitated silica. By pre-hydrophobated, it is meant that the silica is pretreated, i.e., the pre-hydrophobated precipitated silica is hydrophobated prior to its addition to the rubber composition by treatment with at least one silane. Suitable silanes include but are not limited to alkylsilanes, alkoxysilanes, organoalkoxysilyl polysulfides and organomercaptoalkoxysilanes.
In an alternative embodiment, the pre-hydrophobated precipitated silica may be pre-treated with a silica coupling agent comprised of, for example, an alkoxyorganomercaptoalkoxysilane or combination of alkoxysilane and organomercaptoalkoxysilane prior to blending the pre-treated silica with the rubber instead of reacting the precipitated silica with the silica coupling agent in situ within the rubber. For example, see U.S. Pat. No. 7,214,731.
The prehydrophobated precipitated silica may optionally be treated with a silica dispersing aid. Such silica dispersing aids may include glycols such as fatty acids, diethylene glycols, polyethylene glycols, fatty acid esters of hydrogenated or non-hydrogenated C5 or C6 sugars, and polyoxyethylene derivatives of fatty acid esters of hydrogenated or non-hydrogenated C5 or C6 sugars.
Exemplary fatty acids include stearic acid, palmitic acid and oleic acid.
This is actually pretty good technology.
Continuous fractionation of crude tall oil to refined tall diesel
United States Patent 11447717 B2 · Filed: 10/21/2019 · Published: 09/20/2022
Assignee:
SUNPINE AB (Piteå, SE)
Inventors:
Naydenov, Valeri (Luleå, SE)
This patent covers a new CTO (crude tall oil) continuous distillation scheme that affords higher yields of refined tall diesel (RTD). It’s a good read that describes the state of the art for this subject.
A RUBBER COMPOSITION AND A TIRE
European Patent Application EP4056640 A1 · Filed: 03/02/2022 · Published: 09/14/2022
Assignee:
GOODYEAR TIRE & RUBBER (Akron, OH 44316, US)
Inventors:
SCHWEITZER CLAUDE (LU)
AGUIAR DA SILVA CECILIA (LU)
PAULUS MARC-ANDRÉ ROBERT (LU)
HEDO MARC ANTOINE NORBERT (LU)
FELTES SERGE GUILLAUME (FR)
PICCHIOTTI STEFANO (LU)
Background from the patent application
As known in the tire art, it has traditionally been difficult to improve multiple tire characteristics at the same time without considerable trade-offs in at least another characteristic. One of such conflicts exists between rolling resistance and wet performance. When rolling resistance is to be improved, there are typically trade-offs in wet grip. However, limiting rolling resistance is crucial to increase energy efficiency.
Moreover, there may be further preferences of tire performance depending on the type of vehicle equipped with the tires. In particular, it may be desirable for some SUV tires to reduce the maximum lateral force achieved during tire force & moment tests or maneuvers. In particular, rollovers shall be avoided which may have a higher probability for vehicles having a relatively high center of mass. In particular, a low maximum lateral force can be associated with a limited rollover probability. Despite of the desire to reduce the maximum lateral force, lateral forces of the tire shall nevertheless be relatively high at limited slip angles of the tire. In other words, high cornering stiffness is desired despite the wish to limit the tire's maximum lateral force in such cases.
The development of the balance of lateral maximum force, cornering stiffness and/or wet grip as well as rolling resistance of tires leaves still room for improvement.
Comments: This last paragraph is a key point for this application given another application that focuses on seemingly similar properties but specifies alpha-pinene resins as preferred. See the next application!!!
This current application is also unique in that only terpene resins at high levels, especially beta-pinene resins with high molecular weights are suitable, and that relatively low levels of silica are used to improve the properties of the magic tire rubber triangle. Other resins especially terpene phenols are not preferable.
A RUBBER COMPOSITION AND A TIRE
European Patent Application EP4056644 A1 · Filed: 03/02/2022 · Published: 09/14/2022
Assignee:
GOODYEAR TIRE & RUBBER (Akron, OH 44316, US)
Inventors:
PICARD VIRGINIE ELYANE MICHELLE CATHERINE (BE)
DELVILLE JEROME JOEL DANIEL (FR)
STEINER PASCAL PATRICK (LU)
DJELLOUL-MAZOUZ MALIK (LU)
Comments: This application and the previous one should be read carefully because the readers could be confused by the use of alpha-pinene resins as preferred in THIS application and beta-pinene resins being preferred in the previous application. The applications on paper are very similar but they are not.
RECOVERY METHOD FOR NEUTRAL AND LIPID COMPONENTS CONTAINED IN TALL OIL SOAP (TOS) OR ITS SAPONIFIED DERIVATIVES: LIPID COMPONENTS SUCH AS FATTY ACIDS (FA), ROSINIC ACIDS (RA), NEUTRAL COMPONENTS OR NEUTRAL MATERIAL (NM) INCLUDING PHYTOSTEROLS
WIPO Patent Application WO/2022/185258 A1 · Filed: 03/03/2022 · Published: 09/09/2022
Assignee:
AMERICAN BIOPROCESS LTDA (CL)
FUENZALIDA DIAZ MIGUEL ANGEL (CL)
Inventors:
FUENZALIDA DIAZ MIGUEL ANGEL (CL)
MANCILLA VILLALOBOS RODRIGO ALEJANDRO (CL)
ARAVENA CONTRERAS RAÚL IGNACIO (CL)
The invention relates to a method of separation and recovery of neutral and lipid components contained in saponifiable mixtures such as lipids and residues of plant and animal origin or saponified such as Tall Oil Soap (TOS), or in their saponified derivatives, said method is based on differences in their solubility in a solvent or in a mixture of solvents from the group consisting of water and alcohols.
The invention relates to a method of separation and recovery of neutral and lipid components contained in saponifiable mixtures such as lipids and residues of plant and animal origin or saponified such as Tall Oil Soap (TOS), or in their saponified derivatives, said method is based on differences in their solubility in a solvent or in a mixture of solvents from the group consisting of water and alcohols.
By the method of the present invention, it is possible to separate neutral material (NM), including fatty alcohols and sterols, from various saponified raw materials, including TOS, by dissolving them in a mixture of water and alcohols.
By the method of the present invention, a recovery of acidulation products is also possible after removing the NM from the saponified product, for example, the TOS or from any of its saponified derivatives. Thus, in the case of TOS, it is possible to recover refined Tall Oil (TO) consisting mainly of fatty acids and rosinic acids.
My Comments: unless you are an expert in this technology, you might have to read this patent more than once to digest it all. It’s a good read.
Courtesy of Kerry Thompson, Nelson Lawson, and the PCA.