„Gorgeous modification“ of Benzotriazole UV absorber

Dezember 15, 2020
blog

Omnistab UV 360 is a very efficient benzotriazole UV absorber. It has good UV absorption in the range of 280-380nm. Other advantages are high melting point, low toxicity, oil resistance and color fastness. Above all, low volatility. And all this with a small adjustment; it is a modification of benzotriazole UV absorber 329.

Background

Plastic processing usually involves working at high temperatures (200-300℃). Usually benzotriazole UV absorbers have a relatively low molecular weight. Thus, it is easy to reduce its protective effect due to surface migration and volatilization during polymer processing. On the one hand, this pollutes the environment and affects the health of the operators. On the other hand, it also increases costs. Therefore, it is of practical & economic importance to investigate the synthesis of dipolybenzotriazole UV absorber with high molecular weight and volatile resistance.

Modification

Omnistab UV 360 is a dipoly benzotriazole by a modification of benzotriazole UV absorber 329. In short, see the change of the molecular structure.

Two molecules of UV 329 reacted with formaldehyde and secondary amine under the catalytic action of a base to obtain Omnistab UV 360. We call this reaction the Mannich reaction. At 200℃, the TGA of UV 360 is 0.5% and at 300℃ it is 1.8%. In the range of 200-300℃, UV 360 has almost no thermal weight loss. UV360 has better light stability and thermal stability with the increase of molecular weight. The absorbency does not decrease even with prolonged exposure to sunlight. Performance is not affected by heat during processing and use. Two strong absorption peaks in the ultraviolet region of 270-400nm . To clarify, the two maximum absorption peaks are 306nm and 347nm. At the same time, UV 360 is a UV absorber with excellent performance. Which has an excellent transmittance in the visible light region (>400nm).

Applications

Omnistab UV 360 is widely used in various polymers and resins. For example, acrylic & acetal resin, PET, PC, PA, PE, PP, PS and PPE. It is particularly applicable to the processing and aging conditions. Which have a high concentration and require low volatile and good compatibility. This product is used alone or in combination with antioxidants, other UV absorbers, light stabilizers and other functional additives. As a result, this combination always produces a synergistic effect. Contact us for more information!

Better weather resistance of polypropylene fabric

Polypropylene (PP) fiber is a synthetic fiber spun from isotactic polypropylene, which is polymerized by…

Weiterlesen

Dubai branch office management buy-out

Since 2014 Partners in Chemicals is, under the name of ICG Specialty ChemicalsFZCO, operational in…

Weiterlesen

Thank you for visiting us!

Thank you for visiting us during Plasteurasia 2022 at the booth of our partner Etkin…

Weiterlesen

Hindered phenolic antioxidants for protection of polymers

Hindered phenolic antioxidants are compounds that have substituents on one or both sides of the…

Weiterlesen

K fair 2022 in Düsseldorf 

We will be exhibiting at the upcoming K fair in Düsseldorf for the 5th time…

Weiterlesen

Thermoset plastics – how to improve its durability and color stability?

Thermoset plastics, with thermosetting resin as the main component. It is a plastic that forms…

Weiterlesen

How to obtain better performance with Polyurethane adhesives?

Polyurethane (PU) adhesives are adhesives that contains -NHCOO- and/or isocyanate group (-NCO-) in the molecular…

Weiterlesen

Modified plastic in lightweight cars

In recent years, the development of the automotive industry revolves around lightweight, environmental protection and…

Weiterlesen

How to alleviate polyurethane yellowing?

In this article we will explain how to alleviate polyurethane yellowing. Polyurethane products are widely…

Weiterlesen

Making high-end textiles UV-resistant

UV-resistant treatment is an essential part of the functional textile finish for making high-end textiles…

Weiterlesen

Silicone adhesives

The silicone adhesives used in the early days came from natural materials. For instance, animal…

Weiterlesen

Optical Brighteners

Optical Brighteners are additives to mask the inherent yellowness and improve colors and make your…

Weiterlesen

Water-based sustainable paint

As people’s awareness of health and environmental protection is gradually improving, water-based sustainable paint is…

Weiterlesen

Omnistab Benzotriazole UV absorbers

Omnistab Benzotriazole UV absorbers have exceptionally strong and broad UV absorption properties throughout the UV…

Weiterlesen

Limit electricity for carbon reduction

The Chinese government has decided to limit electricity for carbon reduction. China is aiming to…

Weiterlesen

Excellent hydrolysis resistance phosphite antioxidant

Do you choose the right antioxidant to increase the heat aging resistance of materials? The…

Weiterlesen

Plastics with UV absorbers, a “Protective umbrella”

Almost all plastics that are exposed to sunlight or other outdoor weather conditions require protection….

Weiterlesen

Efficient liquid UV absorber

The Omnistab UV 1 is an efficient liquid UV absorber, which can absorb ultraviolet light…

Weiterlesen

Nucleating agent for polyamide

The amorphous form of polyamide is obtained by rapid quenching of molten polymer to a…

Weiterlesen

Omnistab series for automotive coatings

Automotive coating is one of the fastest developing coatings worldwide. New products are usually better…

Weiterlesen

UV Filter Sunscreen

Meteorologically, it is still winter in the Northern Hemisphere. However, the first rays of the…

Weiterlesen

What do you know about Powder coating?

What is powder coating? It is quite simple, but we would like to explain it…

Weiterlesen

Adhesives and Sealants protective products

Adhesives and sealants are essential products in many industries. Their applications range from paper, packaging,…

Weiterlesen

The world of fiber applications

What are fiber applications? Today, more than half of all fiber consumed is synthetic. For example,…

Weiterlesen

Expectations early 2021

This year was different from other years and a huge challenge for everyone. Working differently…

Weiterlesen

New product groups

New product groups coming soon! We are continuously working on our product portfolio to serve…

Weiterlesen

Today’s highlight is a triazine UV absorber

A triazine UV absorber has excellent properties. In addition, the dosage you need to put…

Weiterlesen

Antioxidant for long-term thermal stabilization

Looking for an antioxidant for long-term thermal stabilization? You probably need an asymmetric hindered phenol…

Weiterlesen

UV Absorber used in a wide wavelength spectrum

In this article we will explain more about the UV absorber used in a wide…

Weiterlesen

Temperature resistant anti oxidant

An excellent temperature resistant anti oxidant is the Omnistab AN 80. The organic combination of…

Weiterlesen

PP Fibers

Looking for more stability of your polypropylene fibers (PP fibers)? Our Omnistab LS 119 is…

Weiterlesen

PE wax

In this article we will explain the characteristics and features of polyethylene wax (PE wax)….

Weiterlesen

Evaluation of new light stabilizers

Choosing your product among all available light stabilizers in the market is challenging. Based on…

Weiterlesen

Light stabilizer 2020

As of June 2020, we expand our product range with the development of, ironically, Light…

Weiterlesen

Sustaining Textile

Producing sustainable products is a hot topic. Especially in the field of clothes, it all…

Weiterlesen

Prolong the lifecycle of your engineering plastics

Engineering plastics and resins instead of metal? Yes we can. In this article we will…

Weiterlesen

UV absorbers in cosmetic industry

Sunscreen is an eternal topic in cosmetics, but it cannot exist without UV absorbers in…

Weiterlesen

Chinaplas 2021

Under current circumstances of the COVID-19, the Chinaplas will be postponed again. The 34th Chinaplas…

Weiterlesen

Omnistab Additives in Water-based Coatings

Water-based coating are coatings that uses water as a diluent and does not contain organic…

Weiterlesen

Corona virus

In this news letter we give you an update regarding to the latest Corona virus…

Weiterlesen

Additives for polyolefins

What are polyolefins? Polyolefin is a type of polymer of olefins. For example, polypropylene or…

Weiterlesen

Principles of stabilizers

Light stabilizers are important additives in rubber and plastic applications. In this article we focus…

Weiterlesen

Happy Chinese New Year

It has been a pleasure to work with you this year, we wish you a…

Weiterlesen

Anti yellowing agents

We launched two anti yellowing agents, Omnistab HN 130 & Omnistab HN 150. Both are…

Weiterlesen

Happy holidays

On behalf of our team: we wish you happy Holidays, all the best to you…

Weiterlesen

Comparison test PA6 with Omnistab LS 5519

In October we introduced the new light stabilizer for Polamide (PA); Omnistab LS 5519. To…

Weiterlesen

Light stabilizer for nylon – Omnistab LS 5519

Omnistab LS 5519 is a highly efficient light stabilizer for nylon. For example, polyamide (PA)….

Weiterlesen

Liquid Anti Oxidant

In the world of additives you see a large group of anti oxidants in powder, granular and flake form. However, if you are looking for a liquid anti oxidant

Weiterlesen

UV absorber for agriculture film

There are many different UV absorbers, but there is one that really stands out if…

Weiterlesen

Natural Rubber Latex

Since the start of Partners in Chemicals we offer the market Natural Rubber Latex. Natural…

Weiterlesen

Explosion Eastern China

An explosion at a pesticide plant in eastern China is the latest in a series…

Weiterlesen

End of cooperation with the NRC Group

Partners in Chemicals has decided, in mutual agreement with Nordmann Rassmann (NRC), to end our…

Weiterlesen

Evaluation of three UV absorbers

In this article we evaluate three different UV absorbers. They have advantages and associated characteristics….

Weiterlesen

High performance light stabilizer for coatings

In this article we highlight the performances of our Omnistab LS 123. This product is…

Weiterlesen

Near Infrared Absorber for Laser Beam Welding

Laser Technology Laser technology was originally used in 1970 to weld plastic film with CO2…

Weiterlesen

Update on chemical factory closures in China

The main purpose of China’s “Cease-Work Orders” is to optimize the atmospheric environment and control…

Weiterlesen

Introducing N3coat

It’s all about people “I believe in an honest and open way of doing business….

Weiterlesen

Omnistab NIR LW

The right laser absorber The diode laser has a wavelength of 800 ~ 1000nm and…

Weiterlesen

How to stop the yellowing of polyurethane flexible foam

A great number of manufacturers, including those that make high-grade sponge, have tried different solutions….

Weiterlesen

Liquid triazine UV absorber

Omnistab UV 400 is a liquid triazine UV absorber for coating products. We specially developed…

Weiterlesen

Chinaplas 2017

Partners in Chemicals presents Together with Longquan Chemicals, our booth in Hall 9.3 on stand…

Weiterlesen

Daniel Knegt

ITU WPS Gold Coast Recently he participated in the ITU WPS Gold Coast with his…

Weiterlesen

OMNISTAB UV 1600

Therefore, polymer additives are essential during manufacturing processes. It safeguards the exquisite look of surfaces…

Weiterlesen

Restrain on Chinese chemical production

The Chinese government started a straightforward campaign to decrease water pollution to control the waste…

Weiterlesen

ICG Specialty Group expands portfolio

The ICG Specialty Group is a global supplier of polymer additives whose proprietary Omnistab brand…

Weiterlesen

European Coatings Show 2016

During the European Coatings show we also showed the new generation product: Omnistab NIR. Its…

Weiterlesen

New environmental laws implemented

Why is the Chinese Chemical industry struggling? “There is still large gap in result between…

Weiterlesen

Introducing partnership with Deltachem

A Chinese partner of choice “We work with people from the Netherlands, China, Israel, Dubai,…

Weiterlesen