Polytone K-Series resins in polyurethane (PU)

Inks -Any Solvent Based	Polyurethane (PU)	Nitrocellulose Based
Ball Pen Inks	Inks	Coating
Liquids Inks	Coatings	Sealant
Flexographic Inks	Polyol Formulator	Polish
Rotogravure Inks	Flooring	Adhesive
Packaging Inks	PU Laminates
Surface Coatings	Metallic Inks	Paints (Rare)
Polish – Wood	Cigarette Packaging	Any Solvent Based
Paper Coating (Cards)	Wrapper (Non Food)
Varnish

PU Applications: Flooring, Construction & Wood
 

PU Applications: Pipe Coating: Water, Oil & Gas

PU applications Inks.

Polyurethane based Inks.

• Pu Based inks are applicable on polyester, BOPP, Nylon, Cellophane & PVDC coated films.
• PU based inks are suitable for solvent base/ solvent less/ PP Extrusion Lamination
• PU based inks can be further classified in to three categories depending upon solvent system used

• Toluene & MEK Based inks
• Toluene Free Inks
• Toluene & MEK Free Inks

PU applications Inks

• PU Inks has Excellent Printability and Resolubility.
• PU Inks has very good Adhesion on most of the substrate.
• They are High speed Printing Inks.
• PU Inks has very good Lamination Bond strength and extremely low Solvent Retention.
• Suitable for Boil and Retort Application.

About Polyurethan (PU)

• Developed by Otto Bayer in 1937
• Produced as Elastomers, Foams, Coatings, Adhesives Fibers, Synthetic Leather etc
• PU industry shown significant growth in adhesives and coatings
• Normally consists of Polyol (Polyester or Polyether Type, Isocynate & additive
• Property depends on Stoichiometric proportions of types of isocynates & polyols
• Oldest Type are 1-component PU system based on di- or triisocyanates that cured by reacting with active hydrogen on substrate or moisture

About Polyurethane/PU

Before we get too Technical! Basic of Polyurethane (PU System)

It’s a 2 Component System – it needs two reactants to make a PU

• PU can be Foam, Coatings, Adhesives, Fibers etc

When they say it is a 1 component system

• Moisture (water) plays the part(role) of the POLYOL

There are different types of Polyols & Isocyanates

• Choice of these different types determine the property of the final PU
• The “Reactive Sites or Groups” in the Polyol & Isocyanate reacts to produce the PU

Before we get too Technical! Basic of Polyurethane (PU System)

Where does Ketonic Resin come into the picture

• Ketonic resin can be mixed with Polyol and reacted with Isocyanate
• KR can be made into solution (e.g.mixed in chloroform) and reacted
• The solvent shall be needed to be removed by vacuum

Because KR has the same “Reactive Site/Group” as a Polyol

• It blends easily with Polyol
• It reacts easily with Isocyanate
• It gives enhancement in the overall property of the PU
• Basically its an additive which provides multiple benefits

PU Systems with Ketonic Resin

KR interaction with PU System

Polyurethane Resins

Resins such as Ketone Resin which contain hydroxyl groups are also used for modification of (for example PUR) binders. Our Ketone Resins “urethane grade” react easily with mono and di-isocyanates, such as HDI, TDI, MDI and IPDI. Different combinations of polyols and rnodifiedketone resin are used for ‘PUR system. Highly active hydroxyl group can react with isocyanate to improve the resistance to water, heat and corrosion. This technology is used In a wide variety of applications including indoor and outdoor floor coatings.

PU Systems with Ketonic Resin

KR interaction with PU System

• Resins such as POLYTONE K 96 and POLYTONE K 97 contain a high level of hydroxyl groups that makes it particularly suitable for combined use with polyols and isocyanates in the formulation of bicomponent polyurethane systems (PU or PUR 2K).
• Our Ketonic resins react easily with mono and di-isocyanates, such as HDI, TDI, MDI and IPDI.
• The strong bond created by hydroxyl group and isocyanates guarantees a strong resistance to water, heat and corrosion.
• This technology is used in a wide variety of applications including indoor and outdoor floors (for example : industrial plants, warehouses, garages, car parks, etc.) as well as roofs.
• The almost infinite possibility of combining colours and patterns makes these systems particularly suitable for finishing floors in designer shops and houses, where the only limit is the designer’s imagination.

KR interaction with PU System

KR products available

Which Product to Suggest

• Most well known product has been BASF’s Synthetic Resin CA
• Our POLYTONE K 94 is the direct equivalent of Synthetic Resin CA
• The Hydroxyl Value (-OH Value) / Reactivity is 220-240
• Our LOW reactivity grade is K 93LH
  • Low reactivity with Isocynates
  • Used more as binder
• Our HIGH reactivity Grades are K 96/97, -OH Value upto 295
  • High Reactivity with Isocyanates
  • High Viscosity Changes, More Hardness

Characterisics – Effect On Formulation & End Product

Parameters	K 92LH	K 93	K 93LH	K 90	K 94	K 95	K 96	K 97	K 96 HH	K 97 HH
Physical Form	Pearl Shaped Granules	Pearl Shaped Granules	Pearl Shaped Granules	Pale Yellow lumps	Pearl Shaped Granules	Pearl Shaped Granules	Pearl Shaped Granules	Pearl Shaped Granules	Pearl Shaped Granules	Pearl Shaped Granules
	Low hydroxyl value grade			Lump form	Standard Grade		High melting point grade		High hydroxyl value grade
Softening point(Ball & Ring method)in deg c	70-90 (very low)	98-103	95-105	90-105	90-95	100-105	105-110	110-120	105-110	110-120 (very high)
Viscosity(B4 Ford Cup @ 25deg C)in sec(50% solution in spirit)	14-19(very low)	15-17	17-19	17-20	17-19	19-21	20-23	22-25	20-23	22-25(very high)
Hydroxyl Value(mg KOH/gm Resin)	170-200(very low)	265-285	170-200	170-220	200-220	230-250	230-250	230-250	270-295	270-295(very high)
Acid Value(mg KOH/gm Resin)	<1	<1	<0.2%	<1	<1	<1	<0.5%	<0.5%	<0.5%	<0.5%