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Epoxy resins need to be cured/ hardened to reach their final properties. The use of XIRAN^®gives cured epoxies the desirable characteristics such as improved electrical properties (lower Df),improved thermal properties (higher Tg) and lower coefficient of thermal expansion. In addition, the cured with XIRAN^® epoxy resins will have improved adhesion as well as higher moisture resistance compared to the standard epoxy.

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The addition of XIRAN^® will increase the thermal properties of many engineering plastic systems like ABS, (HI)PS, PMMA or PVC. Additionally this will improve the rigidity and strength of the compounds, with a better dimensional precision, low shrinkage and improved adhesion.

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These thermosetting binder systems are no added formaldehyde binder systems used as an alternative to acrylic and phenolic resins. They exhibit good wet strength as well as excellent moisture resistance and strength after curing which justify among other benefits their superior performance. XIRAN^® binder systems were specifically designed to meet end users demands and they do not emit VOC’s such as phenol or formaldehyde during the manufacturing process and its subsequent use.

Moreover, styrene maleic anhydride hydrolyzed solutions (XIRAN^® SL) have good adhesion to glass and are compatible with natural materials like starch and soya proteins. They are used to improve performance of other systems such as Phenol-Formaldehyde, Urea-Formaldehyde, Melamine Formaldehyde systems or other types of no added formaldehyde systems.

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In specialty polymer applications, the use of maleic anhydride modified polymers in adhesives is well known. They are often used to increase adhesion to polar surfaces, improve water resistance and alkali solubility. The combination of water resistance and alkali solubility makes XIRAN^® styrene maleic anhydride an ideal additive for label adhesives.

XIRAN^® also improves the heat resistance of emulsion polymerization latex such as styrene acrylic allowing them to be used in heat seal coatings for flexible packaging.Styrene maleic anhydride is also used in paper sizing to provide the combination of hydrophobicity and improved toner adhesion. By using XIRAN^® copolymers as cross-linking agents in Copper Clad Laminates (CCL) for the production of PCBs, adhesion improvement to copper and glass filaments can be also achieved.

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Styrene maleic anhydride copolymers are used for both organic and inorganic pigments to provide superior dispersion stability and lower viscosity systems. These polymeric dispersing agents are less likely to migrate to the surface compared to traditionally used monomeric surfactants. In addition to this, styrene maleic anhydride copolymers are good pigments surface modifiers and have the ability to improve the ink’s or coating’s hydrophobicity, gloss and scrub resistance and are also very compatible with many neutral and alkaline pH latexes and paints.

XIRAN^® hydrolyzed solutions (XIRAN^® SL) are also used in paraffin wax emulsions acting as hydrophobic dispersing agents.  Their ability to drastically imidize improves the hydrophobicity of the systems. 

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Sunroof frames are an excellent example where XIRAN^® compounds are used to produce large parts with a high dimensional stability with low creep. The use of XIRAN materials offer designers a weight and cost reduction and at the same time offering products with even greater functionalities and value added features.

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Polyscope supplies hydrolyzed styrene maleic anhydride copolymers as sodium, potassium and ammonium salt solutions under the brand name XIRAN^® SL. These are low viscosity, low VOC, freeze-thaw stable solutions with high dry solid content.XIRAN^® SL grades can be used as dispersants in the following applications: pigments, inks and coatings, paraffin wax emulsions, adhesives and paper sizing.

Moreover, styrene maleic anhydride hydrolyzed solutions (XIRAN^® SL) have good adhesion to glass and are compatible with natural materials like starch and soya proteins. They are used to improve performance of other systems such as Phenol-Formaldehyde, Urea-Formaldehyde, Melamine Formaldehyde systems or other type of no added formaldehyde systems.

Styrene maleic anhydride copolymers are also available as fully formulated, ready-to-use, thermosetting binder systems which can be used in many applications such as glass/stonewool insulation, automotive insulation and glass fiber mats for non- woven applications such as vinyl flooring, ceiling tiles, roofing shingles. Other applications include filtration media and backing of gypsum boards. These thermosetting binder systems are no added formaldehyde binder systems used as an alternative to acrylic and phenolic resins exhibiting good wet strength as well as excellence moisture resistance and strength after curing.

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Our XIRAN^® compounds provide:

• Excellent long term heat ageing properties
• Best in class paint and foam adhesion
• High precision molding with excellent shot-to-shot consistency
• Good chemical resistance
• High strength and stiffness
• High thermal resistance
• Recyclable

Your Benefits

• High precision molding means lower waste and cost
• New design opportunities and reduced weight
• Reduced need for metal reinforcements
• No flame treatment necessary
• Reduced cycle times and cost

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