vitel copolyester resins march2014 (hubron version) · flexible packaging lidding films •...

A company of TOTAL www.bostik.com

VITEL Copolyester resins

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 cross-

linked.

• They exhibit exceptional adhesion properties on PET films which made them

widely used in the flexible packaging industry and various other industrial

applications.

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)

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

•High optical performances

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.

Markets

Film producer

INDUSTRIAL

LAMINATION

Film converter

Inks / Graphic

Arts

FORMULATORS

Electrical laminates

Woven to film…

FLEXIBLE

PACKAGING

Coating

Co-extruded film

Food / Medical

Flexible packaging

Printing inks / Hot

stamping foils

Food Cans

Profile wrapping

Flexible circuitry

Flat cable

Sail cloth

Reflective material

Adhesives

Core markets we serve today

Flexible Packaging

LIDDING FILMS

• Sealable / Peelable films dedicated to Food packaging (frozen to ovenablesuch 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

• Vitel resins used as polymer or additive for various sub-segments

- Can coating

- Coil coating

- Protective coating

Formulators

COATINGS

Formulators

• 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

•

GRAPHIC ARTS

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

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

Services

Our added-value

• Customer-driven / Solution provider

• Dedicated R&D and Technical Support

• Vitel manufacturing sites

• Flexible manufacturing capability for customized formulations

March 2014

Global R&D expertise and manufacturing

Global R&D Centres

of Excellence

USA EUROPE ASIA PACIFIC

Manufacturing

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)

Amorphous and Crystalline Resins

Crystallinity is the ability of polymer chains to align in two or three-dimensional ordering.

Benefits for crystalline resins Benefits for amorphous resins

Higher heat resistance Transparency

Lower solubility Increase solubility

Increased toughness Lower heat activation

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

VITEL® resins are available...

� In dry form or solvated (specific project – on demand)

� In pellets or granules

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

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)


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)


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,


• FDA /EU compliances

• Examples :

� Industrial applications such as sailcloth (Vitel 3650B), solar window film (Vitel

3300B, 3650B)


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,


• Examples :

� Industrial applications such as flexible circuit and flat cable (KP 7908, 7962) or

part of profile wrapping formulations for PVC.


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%)


Typical Substrates Bonded

• Biaxially oriented polyester films

•Treated polyolefins (PE, PP) >

38dynes/cm

• Polyimide

• Vinyl (PVC, PVF, PVDF)

• Metals (Aluminum, Copper, SS)

• Nylons

• Cellulose acetate

Typical Application Equipment

• 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)

Thank you.

vitel copolyester resins march2014 (hubron version) · flexible packaging lidding films •...

Documents