Tech Alerts November 2022
Abstracts that tickle this reviewer's interest
Courtesy of Google Scholar
Year - Month: 2022-11
Borneol: A Plant-SourcedTerpenewith a Variety of Promising Pharmacological Effects
A Rajput, A Kasar, S Thorat, M Kulkarni - The Natural Products Journal, 2023
Background: Borneol, a bicyclic monoterpene belonging to the class of camphene,
is sourced from Blumea balsamifera, Cinnamonum camphora (L.) Presl,
Dryobalanops aromatica Gaertner, and the volatile oils extracted from various other …
was carried out. The effect of the duration of the extraction process and the …
Borneol and camphene are on the list of 855 substances listed on Canada’s latest Section 71 survey request.
[HTML]PlantSterolsfor Lowering Cholesterol? Depends on Your Genes
D Moon
One recommendation often made for lowering cholesterol levels is to consume
higher amounts of plant sterols. You can find plant sterols in … It turns out that plant
sterols probably lower cholesterol only in people with certain genetic variants. Plus …
Interesting for all you “23 and Me” fans.
Why can insects not biosynthesize cholesterol?
E Haas, Y Kim, D Stanley - Archives of Insect Biochemistry and Physiology, 2022
… We address the protostome need and benefits of acquiring exogenous sterols. …
For our purposes, the biosphere provided sufficient sterols to support dietary sterol
needs of the early Ediacara Biota and the many animal forms that emerged later …
As I understand it shrimp also cannot produce their own cholesterol and must get it from an outside source.
[PDF]Biogas digestate as a sustainable phytosterol source for biotechnological cascade valorization
T Weckerle, H Ewald, P Guth, KH Knorr, B Philipp… - Microbial Biotechnology, 2022
… sterol lipids β- sitosterol and cholesterol from the feedstocks to the final digestates
of three agricultural and one biowaste biogas plants to assess if sterols … Gas
chromatographic analyses showed that feedstock sterols were not degraded during …
Another potential source for sterols.
X Liu, J Zhang, C Yuan, G Du, S Han, J Shi, J Sun… - 2022
… It has been found that many microorganisms use natural sterols as carbon
sources and energy sources [5]. Although many catalytic … Although many
microorganisms can convert sterols to 9-OHAD, there are still some defects. For …
This is how sitosterol is converted to pharmaceuticals. Amazing ho high the yilds can be from those little “bugs.”
S Senarat, T Cheunban, T Phaechamud, T Chantadee - Materials Today …, 2022
… The contact angle was found to be increased when a high concentration of rosin
was used except the 20%w/w rosin concentration. Surface tension increased with
rosin concentration, but not with 60%w/w rosin. When rosin was employed, the …
AM Atta, GA El-Mahdy, HA Allohedan, SM El-Saeed
… Gum rosin was used as starting material to synthesize the R-MA. Gum rosin was
heat to 180 C and carried out the isomerization so that other resin acid would
convert to levopimaric acid prior to DielsAlder reaction with maleic anhydride. The …
Dissolved C60 and method of producing dissolved C60
United States Patent 11484508 B2 · Filed: 10/23/2020 · Published: 11/01/2022
Assignee:
Innovation for Success, LLC (Doylestown, PA, US)
Inventors:
Heflich, Leonard W. (Doylestown, PA, US)
I remembered citing this patent application earlier this year because the claim is the use of dissolving C60; Buckyballs in a limonene-based solvent. C60 is very difficult to dissolve in useful amounts. Limonene, a very useful substance in its own right solved the problem. The inventor’s summary is:
A method of dissolving C60 molecules including combining C60 molecules with a limonene composition to form a C60 mixture, and heating the C60 mixture to a predetermined temperature for a predetermined time period to dissolve the C60 molecules into the limonene composition to form a dissolved C60 mixture. The dissolved C60 mixture is homogenous and includes at least 16.67 mg of the dissolved C60 molecules per milliliter of the limonene composition.
Cooling product
United States Patent 11491091 B2 · Filed: 11/30/2018 · Published: 11/08/2022
Assignee:
SYMRISE AG (Holzminden, DE)
Inventors:
Küper, Thomas (Reken, DE)
Oertling, Heiko (Lausanne, CH)
Lange, Sabine (Holzminden, DE)
This patent claims the use of select 1,2 alkanediols to enhance the cooling effect of many coolants, many being based on l-menthol. Coolants is still a very active area for research at the large F&F companies.
Rubber composition comprising a specific hydrocarbon resin
United States Patent 11492465 B2 · Filed: 04/13/2018 · Published: 11/08/2022
Assignee:
COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN (Clermont-Ferrand, FR)
Inventors:
De Gaudemaris, Benoit (Clermont-Ferrand, FR)
Belz, Justin (Clermont-Ferrand, FR)
The key performance improvement is the use of high softening alpha-pinene resins. It is based on the combination of high Tg, with low molecular weight and unique repeat unit structures.
Resin modified oil extended rubber
United States Patent 11505683 B2 · Filed: 09/13/2019 · Published: 11/22/2022
Assignee:
THE GOODYEAR TIRE & RUBBER COMPANY (Akron, OH, US)
Inventors:
Isitman, Nihat Ali (Hudson, OH, US)
Woloszynek, Robert Alan (Brunswick, OH, US)
Kulig, Joseph John (Talllmadge, OH, US)
Long, Hannah (Wadsworth, OH, US)
Pompei, Manuela (Rueler, LU)
Labbe, Jennifer (Copley, OH, US)
“This invention is based upon the unexpected finding that a hydrocarbon traction resin can be dispersed into the oil used in making an oil extended emulsion and solution rubbers to attain improved performance characteristics. For instance, this technique allows for the hydrocarbon traction resin to be incorporated into the rubber at a higher level than would ordinarily be possible using conventional mixing techniques. In tire tread compounds this provides improved wet traction characteristics without compromising cured stiffness (dry traction) and ultimate properties (chip/chunk resistance). This technique can be used to incorporate a resin into virtually any synthetic rubber that can benefit from being oil extended. “
Think about the number of applications where this technology can be used.
Aqueous microemulsion
United States Patent 11504310 B2 · Filed: 05/24/2018 · Published: 11/22/2022
Assignee:
Firmenich SA (Geneva, CH)
Inventors:
Fieber, Wolfgang (Geneva, CH)
Buchs, Barbara (Geneva, CH)
This patent claims microemulsions with much lower amounts of surfactants than ordinary without sacrificing emulsion stability, a real advantage.
This is also a good read on microemulsions in general.
Farnesene-based tackifying resins and adhesive compositions containing the same
United States Patent 11512234 B2 · Filed: 01/10/2020 · Published: 11/29/2022
Assignee:
FINA TECHNOLOGY, INC. (Houston, TX, US)
Inventors:
Nelson, Keith A. (Exton, PA, US)
Keefe, Violeta N. (Exton, PA, US)
Hansen, Nestor (Coatesville, PA, US)
Technically this is terpene resin technology. Its saving grace is its sustainability, and that similar terpene/farnesene tackifiers can be produced with it.
USE OF 1,2-ALKANEDIOLS AS ADJUVANT IN AGRICULTURE
European Patent Application EP4085766 A1 · Filed: 05/02/2022 · Published: 11/09/2022
Assignee:
MINAGRO SRL (1435 Mont-Saint-Guibert, BE)
Inventors:
VAN DER SANDE KAREN (BE)
DE MAERE ARNOLD (BE)
PEULENS EMMANUEL (BE)
This patent claims 1,2-alkanediols as surface acting components to increase the effectiveness of pesticides. They appear to work. However, there are already terpene -based adjuvants on the market that do that and are less expensive to make. And the terpene-based adjuvants are effective in drift control, a problem that has plagued farmers and horticulturists for decades!!!!
UV OR EB CURABLE MULTIFUNCTIONAL TALL OIL (METH)ACRYLATES
WIPO Patent Application WO/2022/241084 A1 · Filed: 05/12/2022 · Published: 11/17/2022
Assignee:
INGEVITY SOUTH CAROLINA LLC (US)
Inventors:
GANEWATTA MITRA (US)
ZHANG CHENXI (US)
LIU YONGNING (US)
This is really good resin technology. I cite one paragraph that summarizes the work and results.
“[0018] Surprisingly, the inventors hereof discovered that distilled tall oil rosin acids and/or distilled tall oil fatty acids and distilled tall oil rosin acid derivatives and/or distilled tall oil fatty acid derivatives derived from Diels-Alder or Ene modified can be used without gelation to produce BPA-free multifunctional acrylate monomers, oligomers, and polymers with a high degree of (meth)acrylate group incorporation, while maintaining liquid and workable viscosities at room temperature. This was achieved via the functionalization of the modified or unmodified carboxylic acid substrates (i.e., rosin acids, fatty acids) derived from distilled tall oil with a multifunctional glycidyl ether component (e.g., di, tri, or higher functionalized epoxies such as triglycidyl ethers) and functionalizing the remaining epoxy groups with polymerizable acids such as acrylic acid to produce monomeric, oligomeric, and/or polymeric multifunctional acrylates. Unexpectedly, these curable resins when incorporated into curable compositions provided fast curing properties, superior adhesion, and flexibility while maintaining excellent gloss, tack, hardness, rub-resistance and blocking resistance in energy-curable coating applications.”
Moreover, this is a good read for up-and-coming chemists in a field that can be hard to describe and present. Note from NEL: This was one of the first projects I worked on at Union Camp. There are several expired patents, so it wasn’t really all that new.
TACKIFIER FOR ADHESIVE COMPOSITION
European Patent Application EP4083104 A1 · Filed: 04/28/2021 · Published: 11/02/2022
Assignee:
LAWTER INC (Chicago, IL 60601, US)
Inventors:
OKAWACHI KEIJIROU (BE)
MATSUSHIMA HIRONORI (BE)
HAZEN JOHN (NL)
BAKKER WIETZE (NL)
GIACOMELLI PENON MASSIMILIANO (NL)
“The invention relates to use of a polyester comprising monomer repeating units from (A) a hydrogenated bisphenol, (B) a diol, (C) a dicarboxylic acid or its anhydride as a tackifier of an adhesive composition, wherein (C) comprises (C1) an aliphatic dicarboxylic acid or its anhydride. “
The resins obtained with these monomers can perform like rosin resins but without skin sensitization.
Courtesy of Kerry Thompson, Nelson Lawson, and the PCA.