TechAlerts

Abstracts that tickle this reviewer's interest

Courtesy of Google Scholar

Year - Month: 2021-11

Alpha-terpineol prevents myocardial damage against isoproterenol-MI induced in Wistar-Kyoto rats: New possible to promote cardiovascular integrity

ET Paulino, AKBF Rodrigues, MLDP Machado… - Life Sciences, 2021

… In recent few years, the worldwide sales of terpene-based pharmaceuticals were 
approximately US $12 billion [10], [11]. Thus, researchers have been motivated to 
develop novel cardiovascular drugs using terpenes as a source [12], [13]. …

A pilot study of total personal exposure to volatile organic compounds among Hispanic female domestic cleaners

KA Oyer-Peterson, D Gimeno Ruiz de Porras, I Han… - Journal of Occupational and …, 2021

… After excluding one woman whose terpene exposures accounted for 98% of the 
TVOC INS badge concentrations, however, the proportion of terpene and alkane 
concentrations measured by the INS badges of the 14 remaining women was similar …

[HTML]Authenticity of vegetable oils

JR Bell, PN Gillatt

… Perhaps the most straightforward method of distinguishing the two oils is by their 
sterol composition. For example, soybean oil has much higher concentrations of 
stigmasterol than rapeseed oil. More important, rapeseed oil has high levels of …

[HTML] Forest products in the global bioeconomy: Enabling substitution by wood-based products and contributing to the Sustainable Development Goals

PJ Verkerk, M Hassegawa, J Van Brusselen, M Cramm… - 2021

This report addresses the role of forest products in replacing fossil-based and GHG-intensive
products. The overarching objective is to provide recommendations to strengthen
the contribution of substitution by forest products to sustainable development. To that …

The next article is quite interesting for those involved in formulating adhesives involving pine chemicals. I have only included the first page; if you want the rest, let me know.

Tread rubber composition and pneumatic tire

United States Patent 11174375 B2 · Filed: 07/22/2019 · Published: 11/16/2021

Assignee:

SUMITOMO RUBBER INDUSTRIES, LTD. (Hyogo, JP)

Inventors:

Watanabe, Kenya (Kobe, JP)

This patent claims a tire tread with a low wet grip temperature and an increased brittleness temperature that are balanced to improve both wet grip and reduce brittleness simultaneously.  One key feature is a resin with a softening point of 140-180 ^OC to optimize both parameters. The best candidate would appear to be a beta-pinene resin.

DESCRIPTION OF EMBODIMENTS

The tread rubber composition of the present invention contains a styrene-butadiene rubber and has a tan δ peak temperature of −10° C. or higher and a brittleness temperature of −40° C. or lower. With this tread rubber composition, it is possible to achieve a balanced improvement in wet grip performance and resistance to low-temperature brittleness.

Drug delivery composition containing silyl polymers
United States Patent 11160764 B2 · Filed: 11/02/2016 · Published: 11/02/2021

Assignee:

Medherant Limited (Coventry, GB)
Bostik SA (Colombes, FR)

Inventors:

Haddleton, David (Coventry, GB)
Goubard, David (Compiegne, FR)
O'driscoll, Ciaran (Dublin, IE)

The invention relates to a silyl-containing polymer that is used, together with a tackifying resin to form an adhesive composition capable of storing and delivering drugs to the skin of a user. Typically the composition is formed into a patch which shows excellent adhesion to the skin even when drugs and other additives are dissolved into the composition.

Pretty interesting patent.

Rubber composition for tires
United States Patent 11180641 B2 · Filed: 02/22/2017 · Published: 11/23/2021

Assignee:

The Yokohama Rubber Co., LTD. (Tokyo, JP)

Inventors:

Kimura, Kazushi (Hiratsuka, JP)
Kageyama, Hirokazu (Hiratsuka, JP)
Mihara, Satoshi (Hiratsuka, JP)

Provided is a rubber composition including: (i) a sulfur vulcanizable elastomer, (ii) carbon black and/or a white filler, and (iii) a microparticle having a three-dimensionally crosslinked structure; the microparticle being a microparticle obtained by three-dimensionally crosslinking a polymer formed from an oligomer or prepolymer that has a sulfide bond formed from two or more sulfur atoms in a main chain and/or that has a thiol group.

This patent isn’t about resins and tire compositions.  It’s about new microparticles for tire treads.  However, in theory these microparticles could replace resins or even certain polymer grades in tire rubber.  It shows what could happen to resin business due to a technical accomplishment on another type of rubber constituent. 

Agricultural fluid deposition aid
United States Patent 11166456 B2 · Filed: 10/04/2018 · Published: 11/09/2021

Momentive Performance Materials Inc.  (Waterford, NY, US)

Inventors:

Brown, William L. (Pleasantville, NY, US)
Policello, George A. (Ossining, NY, US)
Naue, Jeferson A. (Yorktown Heights, NY, US)

This patent is about silicone- based compounds as agricultural adjuvants.  The subject compounds are surfactants that increase adhesion of active ingredients through optimized spreading on plant surfaces.  It is a pretty good discussion of agricultural adjuvants in general.

RUBBER COMPOSITION FOR TYRES WITH GOOD WET GRIP AND ROLLING RESISTANCE PROPERTIES
European Patent EP3749712 B1 · Filed: 02/06/2019 · Published: 11/24/2021

Assignee:

APOLLO TYRES GLOBAL R & D BV (7521 PT Enschede, NL)

Inventors:

GANESAN SWARUPINI (NL)
ZEEMAN RAYMOND (NL)
MARINUS SANDER (NL)
STEVENS HENDRIK (DE)

The present invention relates to a cross-linkable rubber composition, a cross-linked rubber composition obtained by cross-linking such a rubber composition, a method of preparing a tyre and a tyre. In a cross-linkable rubber composition the cross-linkable rubber composition comprises, per hundred parts by weight of rubber (phr): ≥ 1 phr to ≤ 100 phr of a rubber component selected from the group of styrene-butadiene rubber (SBR), polybutadiene rubber (BR), natural rubber (NR) or a mixture thereof; ≥ 1 phr to ≤ 50 phr of a thermoplastic elastomer (TPE) with a glass transition temperature of ≥ -30 °C (measured by DSC, according to ISO 22768), the composition further comprises an at least partially aliphatic resin component and the composition further comprises a blocked mercaptosilane and/or an unblocked mercaptosilane.

The following series of European patents address the standard properties that tire rubber scientists focus on in their research.  They are presented without comment.

RUBBER COMPOSITION FOR TREAD AND TIRE
European Patent EP3533622 B1 · Filed: 02/14/2019 · Published: 11/17/2021

Assignee:

SUMITOMO RUBBER IND (Kobe-shi, Hyogo-ken 651-0072, JP)

Inventors:

HIMEDA SINGO (JP)

BACKGROUND OF THE INVENTION

Some tires, in particular, tires for heavy load application for trucks and buses and tires for running on an irregular ground, are provided with independent blocks surrounded by a tread pattern (grooves) on a tread. These blocks contribute to transferring of a driving force and a braking force, steering stability on snow and a muddy road surface, and improvement of drainage. However, chipping of blocks is apt to arise due to running on a rough road and aged deterioration, and if the chipping occurs, performance which the tire originally has is hardly exhibited.

NOTE the emphasis on improved block crack resistance as a key tire rubber parameter.  Tire companies do a lot of testing we might not realize is done, but it is.

HIGH BIO-RENEWABLE CONTENT INKS AND RESINS
WIPO Patent Application WO/2021/231829 A1 · Filed: 05/14/2021 · Published: 11/18/2021

Assignee:

SUN CHEMICAL CORP (US)

Inventors:

ROSEN JOSIE M (US)
VANOUDENHOVEN GUY (US)
ARCURIO RALPH (US)

The present invention provides novel anionic modified rosin  ester resins having a high BRC content, up to 100% BRC. The resins of the present invention are useful as emulsion, dispersion, or solution resins. High BRC content pigment grind vehicles, coatings, and finished inks can be prepared using the resins of the present invention. Advantageously, the finished inks of the present invention have equal to or superior properties compared to current commercially available inks sold as sustainable products, but having little to no BRC content. The present invention represents a significant step towards developing sustainable inks and coatings that are better for the environment.

This is an excellent patent/invention in my opinion because it appears to be quite practical and useful.