Product Overview

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Product Overview
TM
ADHESIVES
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Table of Contents
TM
PAGE 1. IRODUR Cross-linkers 15-18 1.1. Te
chnical Information 15-16 1.2. Solvent
Systems 17 1.3. Storage Information 17 1.4. T
echnical Data 18
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IRODUR CROSS-LINKERS
TM
3.1. Technical Information
Using the trade name IRODUR Huntsman offers a
range of polyisocyanates for the crosslinking of
solution grade adhesives. The IRODUR grades are
highly reactive to both water and hydroxyl
compounds. When used with the IROSTIC adhesives
they can be used to to improve the heat
stability, hydrolysis resistance and the
resistance to greases, oils and solvents of the
IROSTIC adhesive film.
Schematic of the cross-linking reaction between
IROSTIC IRODUR
The IRODUR systems, when used as a primer, may
also be used to enhance the adhesion to many
materials, particularly rubber in a variety of
different compositions.
Information contained herein is based on our
present knowledge and experience and does not
release the converter from conducting his own
comprehensive tests. A legally binding guarantee,
also regarding possible rights of third parties,
is expressly denied. Version 05/2002
1
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IRODUR CROSS-LINKERS
TM

• Product Selection
• IRODUR F318, because of its outstanding adhesion
  promotion, can be used for bonding a wide
  variety of different sole materials such as PVC,
  rubber, EVA and leather. In addition, the
  IRODUR F318 grades when used in combination with
  suitable adhesives, shows only a slight
  tendency to discoloration even on exposure to
  light.
• IRODUR E330 is a system designed for general
  cross-linking applications.
• IRODUR E359 is used above all where particularly
  high demands are made on the durability and
  strength of the bond.

• If using the IRODUR system with an IROSTIC
  adhesive system the IROSTIC system should be
  dissolved in a closed dissolver. The time
  required depends on the solvent used and on the
  construction features of the equipment. It is
  recommended to strain the finished solution. If
  fillers have been added to the system then added
  straining may be essential. The IRODUR system is
  then added at the correct level to the IROSTIC
  adhesive solution and throughly mixed to ensure
  good dispersion of the cross-linking agent. The
  adhesive/cross-linker solution may be applied to
  the prepared (roughened, solvent wiped) surface
• Manually via brush, roller, spatula
• Mechanically via roller, knife, spray gun or air
  gun
• The adhesive surface should be applied onto both
  surfaces. The surfaces are then air dried until
  the solvent has evaporated. Depending on the
  quantity applied this takes between 30-60
  minutes. A frequent cause of poor adhesion is
  insufficient drying. The dry surfaces are then
  pressed together following the required
  activation procedure to obtain a stable bond.
• Where IROSTIC is used with an IRODUR system, the
  pot life must be taken into account. Even at room
  temperature the cross-linking reaction starts the
  moment the cross-linking agent is added to the
  adhesive solution. The viscosity of the solution
  gradually increases until, after 8 to 12 hours,
  the adhesive has solidified beyond spreading
  consistency.

Information contained herein is based on our
present knowledge and experience and does not
release the converter from conducting his own
comprehensive tests. A legally binding guarantee,
also regarding possible rights of third parties,
is expressly denied. Version 05/2002
2
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IRODUR CROSS-LINKERS
TM
3.2. Solvent Systems

• The choice of solvents is of great importance
  since both evaporation rate and viscosity of the
  finished adhesive are linked to the solvent used.
  In addition, when using the IRODUR cross-linkers
  it is especially important that solvents used
  should be free from water and alcohol (below
  0.1). It is also important to control the
  ingress of moisture into the final adhesive /
  cross-linker system.
• The following solvents may be used
• Ketones
• Acetone, Methyl ethylketone (MEK)
• Ester
• Methylacetate, ethylacetate, butylacetate
• Aromatics
• Toluene
• It is recommended that the following solvents /
  materials are not used as part of the adhesive
  system, when using an IRODUR cross-linker
• Alcohols
• Ethanol, propanol and other common alcohols
• Acids

3.3. Storage Information
All the IRODUR products must be stored in a cool
and dry place in the original sealed packaging.
Under adequate conditions a minimum stability of
6 months may be expected.
Information contained herein is based on our
present knowledge and experience and does not
release the converter from conducting his own
comprehensive tests. A legally binding guarantee,
also regarding possible rights of third parties,
is expressly denied. Version 05/2002
3
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IRODUR CROSS-LINKERS
TM
Irodur Crosslinkers
Technical Data
) 17 solid IROSTIC in MEK) MC Methylene
Chloride Data shown are typical properties, not
sales specifications

• End Uses
• Shoe
• Automotive
• Textiles
• Packaging

Information contained herein is based on our
present knowledge and experience and does not
release the converter from conducting his own
comprehensive tests. A legally binding guarantee,
also regarding possible rights of third parties,
is expressly denied. Version 05/2002
4
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Hafenringstraße 1 D - 49090 Osnabrück Tel. 49
541 9141-0 Fax [phone] e-mail
martina_walkemeier_at_huntsman.com 2190 Executive
Road Blvd. USA - Auburn Hills, MI 48326 Tel. 1
248-322-7394 Fax. [phone] e-mail
amy_g_isbell_at_huntsman.com Room 1708-9, Olympia
Plaza 243-255 Kings Road North Point, Hong
Kong Tel. [phone] Fax. [phone]
0388 e-mail anna_niu_at_huntsman.com
Information contained herein is based on our
present knowledge and experience and does not
release the converter from conducting his own
comprehensive tests. A legally binding guarantee,
also regarding possible rights of third parties,
is expressly denied. Our products are sold
according to our general terms of sales and
delivery.
Version
05/2002/Adhesives/E