North America
Plastics & Rubber

Functional additives

While more standard plastic additives such as thermal and light stabilizers define the longevity of a plastic application, functional additives provide various effects which give a specially wanted functionality to the finished good.

Functional additive substances are added during the manufacturing process, in general through masterbatches and compounds but also very efficiently by direct dosing during the manufacturing of the finished end use article.

They influence specific properties of the final application by giving the new product characteristics like flame retardancy or improved mechanical strength, clarity, or brilliance amongst others. In doing so, they help plastic to expand its range of application and value. Functional additives offered by BASF include flame retardants, antistatic agents, surface modifiers, rheology control and anti-scratch additives, clarifiers, and nucleating agents.

Flame retardants prevent ignition or spread of flame in plastic material.  Plastics are used in building and construction, electrical and transport applications that must meet stringent fire safety standards.

Plastics insulate and so can build up static charges on the surface which disturb processing procedures and can be an issue for hygiene and aesthetics. Antistatic agents help polymers or plastics applications to prevent the buildup of static electric charge in plastic materials.

Clarifiers and nucleating agents, depending on their use enhance the clarity and brilliance of transparent finished goods, or positively influence mechanical properties as well as having a positive influence on processing speed and production efficiency.

Anti-scratch additives reduce not only the scratch width, depth, and visibility, but the highly stable additives offer no negative impact on parts including low visible bloom, low odor and maintained gloss.

A pack of prerequisites and challenges

Disposable and durable packaging carry a variety of requirements, ranging from ease of processing, economical efficiency to food contact compliance and stunning aesthetics.

Rheology modifier allows a controlled degradation of polypropylene during extrusion processing and significantly increases the melt flow rate with the possibility to tailor melt-flows to the needs of specific processes and applications.

Fluorescent whitening agents (FWAs) or optical brighteners are colorless to weakly-colored organic compounds that, when applied to a plastic, absorb ultraviolet light and re-emit most of the absorbed energy in the visible violet-to-blue fluorescent light. The objectives for using fluorescent whitening agents (FWAs) in plastics are the following:

  • Improvement or masking of the initial color of plastics, which are often slightly yellowish
  • Production of brilliant white end use articles
  • Increase of the brilliancy of colored and black pigmented articles
  • Use as tracer molecules

Benefit Processing & thermal stabilizers Light stabilizers Clarifiers
Bottles PO

Irganox® B 215, B 225, B 561, 1010

Irgafos® 168

Tinuvin® 326 Irgaclear® XT 386
Bottles PET

Irganox® B 561

Irgafos® 126, 168

Tinuvin® 234  

Benefit Processing & thermal stabilizers Light stabilizers Nucleators & antistatic agent
Caps

Irganox® B 215, B 561, 1010

Irgafos® 168

Tinuvin® 326

Chimassorb® 2020

Irgastab® NA 287

Irgaclear® XT 386

Benefit Processing & thermal stabilizers Light stabilizers Nucleators & antistatic agent
PP and PE

Irganox® B 215, B 900, 1010, 1076, E 201

Irgafos® 168

Irgastab® 301

Irgastab® XT 500

Chimassorb® 2020

Tinuvin® 326

Irgaclear® XT 386 

Irgastab® NA 287

 

Irgastat® P

Benefit Processing & thermal stabilizers Light stabilizers Nucleators & antistatic agent
PP and HDPE

Irganox® B 215, B 225, B 561, 1010

Irgafos® 168

Chimassorb® 2020 

Tinuvin® 326 

Uvinul® 4050 (PP-food) 

Tinuvin® 783

Irgastab® NA 287

 

Irgastat® P

Benefit Processing & thermal stabilizers Light stabilizers Antistatic agent
FIBC - PP

Irganox® B 215

Irganox® B 225

Tinuvin® 791

Tinuvin® 783

Tinuvin® XT 55

Chimassorb® 2020

Uvinul® 4050

Irgastat® P

IBC - HDPE

Irganox® B 561

Irganox® B 215

Tinuvin® 783

Chimassorb® 2020

Tinuvin® 326

Irgastat® P
FFS - (L)LDPE

Irganox® B 215

Irganox® B 900

Tinuvin® 783

Chimassorb® 2020

Tinuvin® 326 

Irgastat® P

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