Technical Alerts - October 2021
Abstracts that tickle this reviewer's interest
Courtesy of Google Scholar
Year - Month: 2021-10
Articles from C & E News
Personal Product VOCs drive urban pollution
Half of all VOCs in New Your City cam from personal care products. This is why some states like California are on the warpath to cut back fragrances. This will affect our terpenes businesses.
DL to Buy Rest of Kraton
If you want more details see this:
https://cen.acs.org/materials/polymers/South-Koreas-DL-Chemical-acquire-Kraton/99/i36
Modified Lignin Kills Bacteria with no Antibiotic Resistance
A Better Natural Morquito Repellent; Works as well as DEET
p-mentane-3,8-diolfrom citronellal C & E News, Oct 4, 2021, p 8.
[PDF] Laboratory and Field Trials to Identify Sustainable Chemical Control Strategies for Trioza erytreae in European Citrus Orchards
MA Dionisio, E Hernández-Suárez, F Siverio… - Agronomy, 2021
… This paper proposes an assessment of the effectiveness of several pesticides with and
without apineoil-based organic adjuvant, in order to contain the spread and population
of this pest and reduce the side effects on the Tamarixia dryi parasitoid …
Should be of interest to IFF and T &R Chemicals
Experimental and Mathematical Optimization of the β-Sitosterolextraction from Mechanically Activated Pine Bark
VА Ionin, AS Kazachenko, АМ Skripnikov… - 2021
The optimization of the process of β-sitosterolextraction from the original and
activated with two different methods (drum mill, explosive autohydrolysis) pine bark
was carried out. The effect of the duration of the extraction process and the …
[HTML] Cannabis Vaping: Existing and Emerging Modalities, Chemistry, and Pulmonary Toxicology
J Meehan-Atrash, I Rahman - Chemical Research in Toxicology, 2021
The outbreak of e-cigarette or vaping product use-associated lung injury
(EVALI) has been cause for concern to the medical community, particularly
given that this novel illness has coincided with t...
Everything you wondered about it
Considerations Toward Lower Toxicity Cleaning in K-12 Schools.
D Yeomans, A Quiñones-Rivera - Journal of Environmental Health, 2021
… should not be used around children.” Other NGOs such as the Healthy Green
Schools & Col- leges (2021), Green Schools Initiative (nd), and SF
Environment (nd) have also sug- gested to limit or avoid disinfectants contain …
Some negative news about pine oil
[PDF] ER–Mitochondria Calcium Flux by β-SitosterolPromotes Cell Death in Ovarian Cancer
H Bae, S Park, J Ham, J Song, T Hong, JH Choi… - Antioxidants, 2021
Phytosterols, which are derived from plants, have various beneficial physiological
effects, including anti-hypercholesterolemic, anti-inflammatory, and antifungal
activities. The anticancer activities of natural products have attracted great attention …
Interesting potential for sitosterol
[HTML] Comparative characterization of gum rosins for their use as sustainable additives in polymeric matrices
C Pavon, M Aldas, J Hernández‐Fernández… - Journal of Applied Polymer …
… Finally, the color characterization shows little differences between the samples, being
CA thegumrosin with the greatest total color differences. 1 INTRODUCTION. In 2020,
gumrosinworldwide production volume reached 745 kt …
Same old story – the worst rosin was the one that sat around oxidizing.
Improvement on the high-temperature performance and fuel resistance of SBS modified asphalt by hybridizing with polyamide resin
H Yao, Y Cao, X Zhou, Q Wang - Construction and Building Materials, 2021
… Propanoic acid,talloilfattyacid, C36 dimer acid and ethylenediamine were
added into a four-necked flask with the mole ratio of 3.5:2.5:44:50. The reaction
system was heated to 210 ℃ gradually with stirring under nitrogen atmosphere and …
Of interest to companies making asphalt additives.
Characterization and evaluation of novel sustainable polymers derived from renewable rosin
AA Soliman, NA Alian, MM Elsawy, NO Shaker - Pigment & Resin Technology, 2021
…Gumrosin-based hyperbranched vinyl ester resin (VPEMPAE) was synthesized
from maleic anhydride-modifiedgumrosinadduct (MPA). This adduct (MPA) was
reacted with pentaerythritol to obtain esterified adduct (PEMPA). The PEMPA adduct
Clays catalyzed cascade Prins and Prins-Friedel-Crafts reactions for synthesis of terpenoid-derived polycyclic compounds
AY Sidorenko, YM Kurban, AV Kravtsova, IV Il'ina… - Applied Catalysis A …, 2021
… Therefore, the use ofterpenecompounds in such reactions is very important. The
main source ofterpenehydrocarbons is turpentine with the annual production of ca.
360,000 tons [17]. The terpenoid trans-4-hydroxymethyl-2-carene 1 can be …
Rosinimidazoline as an eco-friendly corrosion inhibitor for the carbon steel in CO2-containing solution and its synergistic effect with thiourea
S Geng, J Hu, J Yu, C Zhang, H Wang, X Zhong - Journal of Molecular Structure, 2021
Rosinis known as an eco-friendly raw material from natural plants. The main
component ofrosinis abietic acid. Abietic acid has a carboxyl and a tricyclic
phenanthrene skeleton in which conjugated double bonds are present. Conjugation …
High-temperature creep and low-temperature relaxation of recycled asphalt mixtures: Evaluation and balanced mix design
X Li, Z Zhou, J Ye, S Wang, A Diab - Construction and Building Materials, 2021
Abstract In this study, high-temperature creep and low-temperature relaxation
performance of recycled asphalt mixtures, with different contents of reclaimed
asphalt pavement (RAP), rejuvenator, and virgin asphalt, were evaluated. The creep …
Of interest to companies making asphalt additives.
[HTML] Dehydroisomerisation of α-Pinene and Limonene to p-Cymene over Silica-Supported ZnO in the Gas Phase
A Alsharif, N Smith, EF Kozhevnikova, IV Kozhevnikov - Catalysts, 2021
… An alternative environmentally benign route to p-Cymene is through
dehydroisomerisation of renewableterpene raw materials, α-pinene and limonene,
using acid-redox bifunctional heterogeneous catalysis [1]. α-Pinene is an …
THIS IS OF INTEREST BECAUSE A NEW COMPANY IN MONTREAL,CANADA, CALLED POLYSTYVERT, IS COMMERCIALIZING A NEW PROCESS TO RECYCLE POLYSTYRENE BY DISSOLVING IT IN PARA-CYMENE
[PDF] Contact dermato-allergology-review of the literature
F Delcroix, SC Bădulici, JF Nicolas - Romanian Journal of Occupational Medicine
… reactivity between PPD andterpenehydroperoxides (fragrance allergens) due to
the similar chemical changes they produce on skin proteins, the study demonstrated
that sensitization to PPD cannot explain the high percentage of sensitization to these …
Patch testing with lots of (uggh) photos. No rosin mentioned.
Ethylene/Myrcene Copolymers as New Bio-Based Elastomers Prepared by Coordination Polymerization Using Titanium Catalysts
S Kitphaitun, S Chaimongkolkunasin, J Manit… - Macromolecules, 2021
The synthesis of ethylene/myrcene copolymers was performed using half-titanocene
catalysts in the presence of a methylaluminoxane (MAO) cocatalyst.
Cyclopentadienyl-phenoxide catalysts, Cp*TiCl 2 (O-2,6- i Pr 2 -4-RC 6 H 2 ) [R = H (1) …
The economics of forest bioeconomy: new results
J Miettinen, M Ollikainen - Canadian Journal of Forest Research, 2021
… The biochemical company usingtalloilproducestall oilrosin (TOR) andtalloil
fatty acids (TOFA) 672 … We assume that the biochemical company buystalloiland
steam from the pulp 673 … In that case, we can estimate the amount oftalloilused …
Tech Alerts. October 2021
Functionalized resin having a polar linker
United States Patent 11142594 B2 · Filed: 10/08/2019 · Published: 10/12/2021
Polar silane linkers are provided that attach to resins to form silane-functionalized resins. The functionalized resins can be bound to hydroxyl groups on the surface of silica particles to improve the dispersibility of the silica particles in rubber mixtures. Further disclosed are synthetic routes to provide the silane-functionalized resins, as well as various uses and end products that benefit from the unexpected properties of the silane-functionalized resins. Silane-functionalized resins impart remarkable properties on various rubber compositions, such as tires, belts, hoses, brakes, and the like. Automobile tires incorporating the silane-functionalized resins are shown to possess excellent results in balancing the properties of rolling resistance, tire wear, and wet braking performance.
Assignee:
Continental Reifen Deutschland GmbH (Hannover, DE)
Eastman Chemical Company (Kingsport, TN, US)
Inventors:
Anderson, Emily Baird (Kingsport, TN, US)
Baker Jr., John Dayton (Kingsport, TN, US)
Carvagno, Terri Roxanne (Church Hill, TN, US)
Chapelet, Judicael Jacques (Akron, OH, US)
Cheng, Wei Min (Pittsburgh, PA, US)
Deng, Liu (Kingsport, TN, US)
De Hullu, Jacobus Gillis (Wolphartsdijk, NL)
Finger, Sebastian (Hannover, DE)
Hirschlag, Hubert (Laatzen, DE)
Lester, Christopher Lee (Danville, VA, US)
Li, Wentao (Kingsport, TN, US)
Muvundamina, Mutombo Joseph (Johnson City, TN, US)
Pavlin, Mark Stanley (Kingsport, TN, US)
Peters, Fabian (Hannover, DE)
Recker, Carla (Hannover, DE)
Scilla, Christopher Thomas (Akron, OH, US)
This patent claims silylated resins for rubber products, i.e tires for this document that provide more effective use of the silyl groups with silica. The current polar resins, because of the random distribution of the polar groups are not always effective as linkers. The subject functionalized resins are linkers.
HOT MELT ADHESIVE COMPOSITIONS WITH HIGH BIO-BASED CONTENT
WIPO Patent Application WO/2021/206819 A1 · Filed: 02/23/2021 · Published: 10/14/2021
Assignee:
H.B. FULLER COMPANY (US)
Inventors:
MISRA, Tara (US)
KAUFFMAN, Thomas F. (US)
MANSOUR, Amera S. (US)
Attorney/Agent:
HALLORAN, Kristi (US)
App Num:
PCT/US2021/019189
Pub Date:
10/14/2021
File Date:
02/23/2021
Referenced by:
View patents that cite this patent
Export Citation:
Click for automatic bibliography generation
Intl. Classes:
C09J7/35; C09J11/06
The invention is directed to hot melt adhesive compositions that can be formulated to include a large percentage of bio-based components. The hot melt adhesive composition includes both liquid bio-based tackifying agent and solid bio-based tackifying agent and can further include bio-based polymers and bio-based plasticizers.
AGRICULTURAL COMPOSITION
WIPO Patent Application WO/2021/202860 A1 · Filed: 04/01/2021 · Published: 10/07/2021
Assignee:
Inventors:
EARLY RYAN (US)
Attorney/Agent:
MALLON, Joseph, J. (US)
App Num:
PCT/US2021/025350
Pub Date:
10/07/2021
File Date:
04/01/2021
An agricultural composition comprising farnesene is provided for controlling plant pathogens. Particularly, the agricultural composition is used to control powdery mildew and other fungi and bacteria.
ADHESIVE COMPOSITION COMPRISING BLOCK COPOLYMER WITH POLYVINYL AROMATIC ENDBLOCK AND POLY(VINYL AROMATIC/BUTADIENE) COPOLYMER BLOCK AND SIS BLOCK COPOLYMER, ARTICLES, AND METHODS
United States Patent Application 20210317341 A1 · Filed: 10/08/2019 · Published: 10/14/2021
Assignee:
3M INNOVATIVE PROPERTIES COMPANY (St. Paul, MN, US)
Inventors:
Forney, Bradley S. (Cottage Grove, MN, US)
Bolton, Justin M. (Minneapolis, MN, US)
Janoski, Jonathan E. (Woodbury, MN, US)
Yoo, Taewook (Stillwater, MN, US)
SUMMARY
In one embodiment, a pressure sensitive adhesive composition is described comprising A first block copolymer comprising polyvinyl aromatic end block and poly(vinyl aromatic/butadiene) copolymer block; at least 20 wt. % of a second polystyrene-polyisoprene-polystyrene block copolymer; and solid tackifying resin. In favored embodiments, the total amount of block copolymer ranges from 40-65 wt. % and plasticizing oil and liquid tackifying resin are present in a total amount of less than 20 wt.-% based on the total weight of organic components of the pressure sensitive adhesive composition.
In another embodiment, an adhesive article is described comprising a substrate having two major surfaces; wherein at least one major surface comprises a layer of pressure sensitive adhesive composition, as described herein.
In another embodiment, an adhesive article is described comprising a substrate comprising two major surfaces and a thickness in a direction orthogonal to the major surfaces; and a layer of pressure sensitive adhesive disposed on a major surface. The pressure sensitive adhesive compositions comprises a first block copolymer comprising polyvinyl aromatic end block and poly(vinyl aromatic/butadiene) copolymer block; a second polystyrene-polyisoprene-polystyrene block copolymer; and solid tackifying resin. The pressure sensitive adhesive exhibits a shear adhesion to a painted drywall greater than 5,000 minutes according to ASTM D3654 (2011) using a bonded area of 2.54 cm by 1.27 cm.
In some embodiments, the adhesive article may be described as “stretch-releasable”. In this embodiment, the substrate has an elongation at break of greater than 50% in at least one direction.
In another embodiment, a method of use of an adhesive or adhesive article is described comprising providing a pressure sensitive adhesive composition or adhesive article as described herein; and bonding the pressure sensitive adhesive composition to a painted surface.
Very interesting patent application. Terpene phenolic tackifiers are heavily discussed here. Note there is some confusing language with regard to manufacturers and tackifier resins. A lot of interesting adhesive data is presented here.
PNEUMATIC TIRE
United States Patent Application 20210324184 A1 · Filed: 08/02/2019 · Published: 10/21/2021
Assignee:
SUMITOMO RUBBER INDUSTRIES, LTD. (Hyogo, JP)
Inventors:
Yasuda, Rie (Hyogo, JP)
The present invention provides pneumatic tires which have reduced changes in hardness over time and which provide improved abrasion resistance while ensuring good durability.
Only terpene resins meet all the necessary criteria including sustainability.
A RUBBER COMPOSITION
European Patent EP3224315 B1 · Filed: 11/27/2015 · Published: 10/27/2021
Assignee:
Compagnie, Générale Des Etablissements Michelin (63000 Clermont-Ferrand, FR)
Michelin Recherche et Technique S.A. (1763 Granges-Paccot, CH)
Inventors:
Fukasawa, Hiroko (Tokyo 163-1073, JP)
The invention relates to rubber compositions which can be used in particular as tread(s) for "winter tire(s)" capable of rolling over ground surfaces covered with ice or black ice without being provided with studs (also known as studless tires), while at least maintaining or even improving a grip on wet.
It relates more particularly to treads for winter tires specifically suited to rolling under "melting ice" conditions encountered within a temperature range typically of between -5°C and 0°C.
This is another patent application whereby limonene resins are especially claimed or preferred for winter tires. The reviewer has seen these type documents before where limonene resins are claimed or insinuated to have unique benefits. Is limonene truly special in this application? Have we missed something here?
POLYMERIZABLE THERMOSETTING RESINS FROM TALL OIL
WIPO Patent Application WO/2021/216435 A1 · Filed: 04/19/2021 · Published: 10/28/2021
Assignee:
INGEVITY SOUTH CAROLINA, LLC (Suite 400North Charleston, South Carolina, US)
Inventors:
LIU, Yongning (Apex, North Carolina, US)
GANEWATTA, Mitra (Ladson, South Carolina, US)
CHEN, Zhigang (Mt. Pleasant, South Carolina, US)
Presently described are curable compounds and curable compositions. Thermosets including the curable compounds and curable compositions described herein are derived from bio-based components and have improved mechanical properties. The described compositions can also be applicable to rosin derivatives and fatty acid derivatives.
USE OF NATURAL OILS AND THEIR DERIVATIVES IN AGRICULTURAL FORMULATIONS
United States Patent Application 20200345004 A1 · Filed: 05/01/2020 · Published: 11/05/2020
Assignee:
Ingevity South Carolina, LLC (North Charleston, SC, US)
Inventors:
Wan, Guigui (North Charleston, SC, US)
Wang, Qi (North Charleston, SC, US)
An agricultural formulation comprising an active component comprising a pesticide, a fungicide, an herbicide, or a combination thereof; a natural oil solvent; and a non-ionic surfactant.
**TechAlerts courtesy of Dr. Nelson Lawson, Dr. Kerry Thompson,and the PCA.