Competencies - Functional Polymer Design

FUNCTIONAL POLYMERS


The Evonik Industries portfolio comprises several functional-polymer technologies. The most prominent polymer technologies are:

1.) Silicone resins and silicone combination resins


The benefits of silicone resins can be combined with versatile organic polymers (such as epoxy, polyester, or polyurethane) to create functional polymers with outstanding performance properties. This technology is used in numerous industrial applications as binders e.g. for heavy duty anti-corrosion protection, ultra-high solid formulations or high-temperature resistant coatings (e.g. SILIKOPON®, SILIKOPUR®, SILIKOTOP®, SILIKOPHEN® and SILIKOFTAL®).


2.) Ketone formaldehyde condensates


Evonik's ketone-adehyde resins (TEGO® VariPlus) include a wide range of non-saponifiable, neutral, and hard resins with a low molecular weight and good light and heat resistance. These resins are used in numerous coatings and printing inks to enhance properties like hardness, gloss, adhesion, and color intensity.


3.) Polyester resins


Evonik offers a wide range of polyesters and co-polyesters for versatile applications:


a) TEGO® AddBond products are low-molecular polyesters with high hydroxyl and carboxy functionality. Due to their excellent compatibility with other formulation components, the TEGO® AddBond products are used as co-binders in numerous coating formulations to optimize adhesion to the substrate, hardness/flexibility, and gloss.


b) DYNACOLL® products are linear co-polyesters with primary hydroxyl functionality and medium molecular weight. The DYNACOLL® product line is designed as a building-block system, allowing the tailored production of reactive hotmelts (RHM).


c) DYNAPOL® products are high-molecular and medium-molecular co-polyesters suitable for package coating (metal can interiors and exteriors, and foil lacquers) or coil coating (top coats, back coats, or primers). The DYNAPOL® product range serves the full spectrum of pre-coated metal applications. You can choose depending on your individual profile of requirements and will achieve excellent film adhesion at an optimum balance of formability and hardness. Many grades are approved for food-contact coatings.


d) DYNAPOL® UB systems are made of saturated, hydroxylated polyester resins and blocked, cycloaliphatic polyisocyanate crosslinkers. DYNAPOL® UB systems are suitable for the manufacture of industrial coatings, particularly coil coatings with high flexibility, good surface hardness, and outstanding weatherability.



4.) (Poly)methacrylates

VISIOMER® methacrylate monomers allow resin producers to design functional binder resins with a broad portfolio of properties.


DEGALAN® is used as a binder in a large number of different applications, such as heat sealing, marine paints and container coatings, concrete paints, metal coatings, plastics coatings, PVC top coats, printing inks, and exterior paints.


DEGAROUTE® products are reactive resins used as binders for durable road markings. The systems' longevity makes them reliable, environmentally friendly, and cost-effective, thus providing an innovative solution which enhances safety for road users around the world.


5.) Polybutadiene


POLYVEST® and derivatives are stereo-specific, low-viscosity, unsaponifiable liquid polybutadienes with a high, 1.4-cis double-bond content. Their high reactivity results in excellent water and chemical resistance in addition to good electrical insulating properties. Common applications include adhesives/sealants, anti-corrosion primers, rubber applications, potting compounds, and impregnations.


6.) Poly-alpha olefine


Evonik's VESTOPLAST® amorphous poly-alpha olefins (APAO) offer a broad range of co- and ter-polymers of ethene, propene, and 1-butene as raw materials for various applications. Under variation of the monomer composition, molecular weight, and chemical modification, optimum values are achieved for properties like hardness, melt viscosity, crystallinity, and rate of crystallization.


7.) Organo-modified siloxanes (OMS)


The OMS technology is used in numerous applications such as urethane-based resins (among them SILIKOPUR® 8080 and various additives). Using the OMS technology, it is possible to combine the unique properties of silicones with versatile organic polymers to achieve properties like easy-to-clean and others.