VITEL Copolyester resins A company of TOTAL www.bostik.com
What are VITEL resins? VITEL is the trade name for our co-polyester resins mainly used as heat sealable coatings and laminating adhesives. This is a high performance product range of thermoplastic, high molecular weight, linear saturated co-polyesters. They are extremely versatile offering a good balance of properties from low temperature flexibility to high temperature resistance. They can be blended or used by themselves depending on applications. They can be cured or crosslinked. They exhibit exceptional adhesion properties on PET films which made them widely used in the flexible packaging industry and various other industrial applications. page 2
What are the key applications? COATING - Heat sealable coating - Primer - Top coat - Ink binder Applied by extrusion (ready-to-use) or from solution (solvated or formulated) LAMINATING ADHESIVE - Films, foils, paper, metal, fabrics lamination for various industries Applied from solution (solvated or formulated) page 3
What is VITEL value proposition? FDA compliance for various US and European food contact regulations Specific adhesion Good abrasion resistance Various heat resistances Good chemical resistance Good UV stability High electrical resistivity All these benefits result from the appropriate selection. The Vitel resins, blended themselves, offer extreme versatility in balancing performance properties. They offer various uses from heat seal coatings to industrial laminations. High optical performances page 4
Markets
Core markets we serve today FLEXIBLE PACKAGING Film producer Film converter Co-extruded film Food / Medical Flexible packaging FORMULATORS Inks / Graphic Arts Coating Printing inks / Hot stamping foils Food Cans Adhesives Profile wrapping INDUSTRIAL LAMINATION Electrical laminates Woven to film Flexible circuitry Flat cable Sail cloth Reflective material page 6
Flexible Packaging LIDDING FILMS Sealable / Peelable films dedicated to Food packaging (frozen to ovenable such a ready-meal trays or fresh food) or to industrial blistering (medical package). Vitel resins used as heat sealable coating. Co-extruded with PET (mostly film producer) or applied from solution (film converter). Dual Ovenable Medical Package page 7
Formulators COATINGS Vitel resins used as polymer or additive for various sub-segments - Can coating - Coil coating - Protective coating page 8
Formulators GRAPHIC ARTS Primer / alone or as ink binder to improve adhesion on PET films, metalized films Top coat / protection, abrasion resistance, transparency, gloss properties Heat sealable coating - Hot stamping foil / Decorative Applications Bind Ink to paper or plastic surface - Thermal transfer Ink binder combined to protective coating page 9
Industrial Lamination SAIL CLOTH Lamination of layers of PET film and scrims FLEXIBLE CIRCUITS Lamination of copper foil to PET film or polyimide film (Kapton). FLAT CABLE FR adhesive used as heat seal coating on PET to bond copper wires page 10
REFLECTIVE MATERIAL Bind reflective materials to films and fabrics LCD AND TOUCH SCREENS Optically clear coating for LCD and Touch Screens ABRASIVE PADS Vitel binds aluminum oxide, and silicon oxide grit to PET film Pads used to polish various surfaces from auto finish to fiber optic cables page 11
Services
Our added-value Customer-driven / Solution provider Dedicated R&D and Technical Support Vitel manufacturing sites Flexible manufacturing capability for customized formulations page 13
Global R&D expertise and manufacturing USA EUROPE ASIA PACIFIC Manufacturing Global R&D Centres of Excellence March 2014 page 14
Product range
What are VITEL properties? High molecular weight = more toughness related product Linearity = longer chains, high green strength, better elongation, less reactive groups Saturated = more stable, better UV stability, colorless Glass transition (Tg) = broad range from hard resin to flexible resin (-40 C to 70 C) Melting point (Tm) or Softening point = various heat resistance from 65 C to 155 C Amorphous or semi-crystalline resins = broad range of transparency, heat resistance, chemical resistance, solubility to answer most of the technical needs Functionality = can be cross-linked (hydroxyl-reactive) to improve heat and chemical resistance (commonly with isocyanate or amino resins) page 16
Amorphous and Crystalline Resins Crystallinity is the ability of polymer chains to align in two or threedimensional ordering. Benefits for crystalline resins Higher heat resistance Lower solubility Increased toughness Benefits for amorphous resins Transparency Increase solubility Lower heat activation page 17
Types of Curing Techniques Isocyanate / MDI, TDI, IPDI ; room temperature, no byproduct Silane / Room temperature cure, Increase functional groups, Liquid by product (methanol) Melamine / Higher Temperature Cure (110-130 C), Catalyst, Flexible linkage, Liquid by product (methanol) Epoxy / Higher Reacts with acid groups, Acid catalyzed, high temperature cure (110-130 C), no byproducts page 18
VITEL resins are available... In dry form or solvated (specific project on demand) In pellets or granules page 19
VITEL Product range 1000 Series Extrudable amorphous and semi-crystalline resins Heat sealable/peelable coating (mainly for lidding stock) 2000 Series Solution applied amorphous resins / High Tg Ink binder, primer, top coat, heat sealable lacquer 3000 Series Solution applied amorphous resins / Low Tg Laminating adhesive; combined with 2000 series to provide superior adhesion performances and better flexibility 7000 Series Solution applied semi-crystalline resins Laminating adhesive for industrial applications; high chemical resistance 5000 Series Modifying resin for 2000, 3000, 7000 Series page 20
VITEL - Product performances 1000 SERIES / Extrudable coating resins Amorphous and semi-crystalline Food contact compliances (FDA-EU) Limited solubility for increased chemical resistance High heat resistance (up to 150 C) Excellent low temperature flexibility Excellent adhesion to untreated PET and vinyl substrates. Heat sealable and/or peelable Examples : Food / Lidding stock for flexible packaging (VITEL 1901NSB, 1912NSB, 1916NSB) page 21
VITEL - Product performances 2000 SERIES / Solution coating resins Amorphous Soluble in Ethyl Acetate, MEK or other solvents blends Heat sealable ; extrudable if necessary High temperature resistance through varying Tg from 50 to 69 C Very good UV resistance and abrasion resistance Good adhesion to treated polyester, vinyl, metals, some treated olefins, polycarbonate substrates FDA /EU compliances Examples : Graphic arts as ink binder, primer to improve ink adhesion, top coating (VITEL 2200B, 2700B) page 22
VITEL - Product performances 3000 SERIES / Solution adhesive resins Amorphous Soluble in Ethyl Acetate, MEK or other solvents blends Laminating adhesive or adhesion/flexibility promoter associated with 2000 series Tg from -15 to 21 C Very good UV resistance Excellent adhesion to treated polyester, vinyl, metals, treated olefins, polycarbonate substrates FDA /EU compliances Examples : Industrial applications such as sailcloth (Vitel 3650B), solar window film (Vitel 3300B, 3650B) page 23
VITEL - Product performances 7000 SERIES / Solution adhesive and coating resins Semi-crystalline Soluble in MEK, Toluene or other solvents blends Used as laminating adhesive Low Tg flexibility (<0 C), Tm from 86 C to 110 C Excellent chemical resistance Excellent adhesion to treated polyester, vinyl, metals, treated olefins, polycarbonate substrates Examples : Industrial applications such as flexible circuit and flat cable (KP 7908, 7962) or part of profile wrapping formulations for PVC. page 24
VITEL - Product performances 5000 SERIES / Modifying resin for 2000, 3000, 7000 Series One product VITEL 5833B Amorphous Soluble in MEK, Toluene, Ethyl Acetate Low molecular weight, tri-functional resin Tg = 50 C Alone, acts as a melt viscosity depressor and improves flow In combination with cross-linkers, acts as a cross link density enhancer (maximum 15%) page 25
VITEL - Product performances Typical Substrates Bonded Typical Application Equipment Biaxially oriented polyester films Treated polyolefins (PE, PP) > 38dynes/cm Polyimide Vinyl (PVC, PVF, PVDF) Metals (Aluminum, Copper, SS) Nylons Cellulose acetate Solvent based laminator with various coating stations possibilities : Rotogravure Enclosed doctor blade gravure Reverse Roll (smooth gravure) Slot Die Meyer rod Single extrusion or Co-extrusion (cast or extrusion coating) page 26
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