The ISOEXTERs are the widest family available in the market of saturated polyesters specially designed for formulating rigid polyurethanes foams.
We offer large variety of polyols, polyester and polyether based polyols mixers and fully formulated systems ready to use.
The variety of grades allows the exploitation of the well-known better fire resistance of the polyesters versus polyethers by the development of PU and PIR systems even based at 100% of polyesters with the benefit of:
- keeping the present process technology.
- Maximizing performance / cost balance.
- Improving the environment issue
The main features of ISOEXTER’s are:
- medium to high functionalities keeping handlable viscosities
- Low to high primary or secondary OH values from 200 to 760
- aromatic and aliphatic nature with specific modifications in order to achieve the
- required compatibilities with the various polyols, blowers and isocyanates
- competitive selling prices.
According to the recipe and the ISOEXTER grades chosen it is possible to achieve the following:
- bromine free PU systems meeting DIN 4102 class B2
- DMMP free systems
- flame retardants free systems meeting ISO 3582 standard
- low cost PU / PIR systems with good mechanical properties.
ISOEXTER are utilized in the following main applications:
- Paper – paper continuous lamination
- Rigid faces continuous lamination
- Appliances
- Continuous and discontinuous blocks
- One component foam (OCF)
- Discontinuous panels
- Wood imitation
ISOTER – Propoxylated polyether polyols for polyurethanes
lsoter products are polyether polyols used in the formulations of systems for PU rigid foam production. The wide range of grades available allows the selection of the more appropriate type according to the blowing agents used in the system and the final foam properties desired.
Isoter have been obtained by designing molecular weights and functionalities in order to satisfy the need of the specific application in terms of process and system performance.
The relative foams show very good physical-mechanical properties mainly as far as dimensional stability and adhesion are concerned. lsoter are very compatible vs. lsoexter therefore it is possible to formulate systems combining the best properties of the two products families.
In the lsoter family there are self-reactive grades recommended as co-polyol in order to obtain the desired reaction profile and curing of the system in the various conditions of application.
On customers request, Coim can study and supply taylor-made grades in order to satisfy specific needs.
ISOEXTER V – Polyol systems for rigid PU foams
Isoexter V series is based on fully formulated polyols for PUR and PIR systems to produce rigid foams for the various applications:
- Continuous lamination
- Discontinuous sandwich panels
- Appliance
- Blocks
- Shutters
- Spray.
According to the technology, the systems can be supplied at two components (polyol blend and isocyanate) or with catalyst package as separate stream.
By a proper selection of the Isoexter V, Pentanes, HFC 245fa, 365/227 and 134a can be used as blowers.
Isocom L (standard crude MDI) and Isocom M (high functionality MDI) are the two Isocyanates to be used in combination with Isoexter V.
According to the utilized grades, panels meeting the main required fire standards in the market are produced: DIN 4102 (class B3, B2, B1),BS476, SBI European standard.
Every Isoexter V can be adapted via the necessary modification by Coim to the specific plant working condition of the customer.
Packaging of ISOEXTER, ISOEXTER V & ISOTER:
230 kg metal drums & 1,100 kg IBC tanks
Rigid polyurethanes foams are specially ordered by customer demand
