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PRIPOL dimerised fatty acids. Large hydrocarbon part (C36) hydrophobic hydrolytic resistance of derivatives affinity for non-polar matrices and surfaces. Irregular non-crystalline structure flexibility low Tg flow, wetting. Di-functional constituent for: polyamides polyesters

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Pripol dimerised fatty acids
PRIPOL dimerised fatty acids

  • Large hydrocarbon part (C36)

  • hydrophobic

  • hydrolytic resistance of derivatives

  • affinity for non-polar matrices and surfaces

  • Irregular non-crystalline structure

  • flexibility

  • low Tg

  • flow, wetting

  • Di-functional constituent for:

  • polyamides

  • polyesters

  • polyurethanes


Different forms of pripol dimer technology
Different forms of PRIPOL dimer technology

PRIPOL dimer acid

PRIPOL dimer diol

PRIPLAST

polyesters

made with PRIPOL

dimer acid or

dimer diol

HO----

E-E

----- OH


A unique performance effect
A unique performance effect

  • PRIPOL and PRIPLAST technology provide

  • a unique combination of resistance against :

  • Moisture

  • Chemicals

  • Heat

  • Oxidation

  • Radiation


Supportive data
Supportive data

Polyurethane samples were prepared from a range of Priplast polyols and competitive technologies (hexane diol adipate, polycaprolacton, hexane diol carbonate, PTMEG, PPG, and polybutadiene diol)

All polyols used had molecular weight of 2000, except Priplast 3196, which is 3000

All recipes were identical in molecular ratio: one part polyol, 2 parts of butane diol, 3.1 parts of pure MDI

All polyurethanes were made via the prepolymer route: first a prepolymer of polyol and MDI, followed by chain extension with butane diol


Moisture uptake of priplast dimerate and other polyurethanes
Moisture uptake of PRIPLAST dimerate and other polyurethanes

Moisture uptake at 23 C, %

Recipe : 1 Polyol

2 Butanediol

3.1 MDI

Conditions : 1 week in H2O dist.


Hydrolysis of pu from priplast dimerate and other polyols
Hydrolysis of PU from PRIPLAST dimerate and other polyols

Retention of tensile strength, %

Recipe : 1 Polyol

2 Butanediol

3.1 MDI

Conditions : 1 week in H2O

(dist.) at 90 C


Effect of uv radiation on pu from priplast dimerate and other polyols
Effect of UV-radiation on PU from PRIPLAST dimerate and other polyols

Retention of tensile strength, %

Recipe : 1 Polyol

2 Butanediol

3.1 MDI

Conditions : 2 weeks exposure

to UV-B


Effect of oxidation on pu from priplast dimerate and other polyols
Effect of oxidation on PU from PRIPLAST dimerate and other polyols

Retention of tensile strength / elongation, %

Recipe : 1 Polyol

2 Butanediol

3.1 MDI

Conditions : Exposure

to 140 C

for 4 weeks


Priplast versus other diols stability of tpu
PRIPLAST versus other diols : stability of TPU polyols

Retention of tensile strength, %

Recipe : 1 Polyol

2 Butanediol

3.1 MDI

Exposure for 2 weeks


Weather resistance
Weather resistance polyols

Retention of tensile strength, %


Hydrolytic stability of pu in boiling water
Hydrolytic stability of PU in boiling water polyols

Retention of tensile strength, %


Mechanical properties of pu from priplast dimerate and other polyols
Mechanical properties of PU from PRIPLAST dimerate and other polyols

crystalline adipate

Recipe: 1 polyol

2 BDO

3.1 MDI

PTMEG

strain hardening

Priplast 3192

HDO dimerate/adipate

Stress

Priplast 1838

HDO dimerate

no strain hardening

Poly BD/rubber

Strain


Effect of polyol on modulus and tensile strength
Effect of polyol on modulus and tensile strength polyols

Recipe 1 Polyol

2 BDO

3.1 MDI


Elongation of pu made with priplast dimerate and other polyols
Elongation of PU made with PRIPLAST dimerate and other polyols

Elongation at break, %

Recipe : 1 Polyol 2 BDO

3.1 MDI

differences only for different MW (3196 is mw 3000, all others 2000) and functuionality (poly-BD)


Shore a hardness of pu made with priplast dimerate and other polyols
Shore-A hardness of PU made with PRIPLAST dimerate and other polyols

Shore A

Recipe : 1 Polyol 2 BDO

3.1 MDI


T g of pu made with priplast dimerate and other polyols
T(g) of PU made with PRIPLAST dimerate and other polyols polyols

Glasstransition temp., °C

Recipe :

1 Polyol

2 BDO

3.1 MDI

P1838 (*) = 1-1-2.1


Priplast polyols for elastomers
PRIPLAST polyols for elastomers polyols

A unique combination of thermo-oxidative and hydrolysis resistance

Low-temperature flexibility and flex fatigue resistance

Low-modulus and soft-touch applications


Elastomers by one shot processing of priplast polyols
Elastomers by one-shot processing of PRIPLAST polyols polyols

- Priplast polyols do not mix well with many other polyols (especially adipates), chain

extenders and isocyanates

- one-shot processing without precautions may cause difficulty: very brittle product,

or very sticky product

- good one-shot processing is possible by making a blend of PRIPLAST polyol and

chain extender (like butane diol), and convert this blend in a one-shot process

- if for some reason (cost, performance) it is considered to blend PRIPLAST polyol

with other polyester polyols, we recommend to NOT make a physical blend, but

instead work with one single PRIPLAST polyol made with a mixture of acids


Blending polyols
Blending polyols polyols

- very careful when mixing partially crystalline polyols

disturbance of crystallinity kills hydrolytic stability, green strength and

tensile strength. Acceptable combinations: 3192 with hexane diol adipate, 3195

with butane diol adipate

- only recommended for the propolymers, for reasons of limited compatibility


Priplast polyols for coatings
PRIPLAST polyols for coatings polyols

- for exceptional weatherability and protection (anticorrosive applications)

- for exceptional flexibility, flex fatigue resistance

- for adhesion to low-energy substrates like plastics

- for 2K, moisture cure and aqueous dispersion type


Priplast technology for polyurethane coatings benefits
PRIPLAST technology for polyurethane coatings: benefits polyols

hydrocarbon character, strength (preservation of hydrogen bonds)

hydrophobicity durability (hydrolytic resistance)

substrate protection (moisture barrier)

adhesion to low energy substrates

non-crystallinity, strength (flow, substrate wetting)

low glass transition long open time

durability (low-temperature flexibility,

stress absorption)


Priplast technology for pu coatings conditions
PRIPLAST technology for PU coatings: conditions polyols

No NMP or other cosolvents

solids content at least 35%

particle size max. 500 nm

aliphatic diisocyanates for colour stability reasons


Priplast technology in aqueous polyurethane dispersions
PRIPLAST technology in aqueous polyurethane dispersions polyols

recipe:

44g Priplast 3195, 6.0g DMPA at 130C/10 mbar for 30 minutes

break vacuum with N2, cool to 110C, add 38.9g IPDI in 10 minutes, react for 1 hour

cool to 60C and add 35g acetone, stir until a clear solution is obtained

cool to 50C, add 6g BDO** and 25g acetone slowly, then another 10g of acetone

react to NCO-number 1.8 (20 hours without catalyst, about 8 hours with catalyst)

add 140g acetone

add mix of 3.1g IPDA+0.3g NH4OH (25%)+20g water, react for 5 hours

add 1.8g NH4OH (25%), stir for half an hour

add 100g water while intensively stirring, until phase inversion (CRITICAL step)

add 50g of water, then remove acetone at 50C under gradually increased vacuum (down to 450 mbar, to prevent foaming)

** to increase crosslinking: use 5.5g BDO with 0.5g TMP


Formulations
Formulations polyols

Priplast 3195 (2000 MW)

Priplast 3195, with TMP crosslinker

hexane diol/neopentylglycol (1/1 molar basis) adipate, 1700 MW

(Fomrez ER 191)

hexane diol/neopentylglycol (1/1 molar basis) adipate/dimerate (1/1 weight basis), 1700 MW

Reference: Commercially available benchmark (aliphatic polyester polyol,

4% NMP, 40% solids, sold at about Euro 7/kg dispersion)


Priplast technology in aqueous polyurethane dispersions1
PRIPLAST technology in aqueous polyurethane dispersions polyols

- resulting white dispersions have 40% solids and 100-200 nm particles,

and give clear transparent film

- film blocking of Priplast-based materials exceeds that of commercial

PU dispersions

- freeze thaw stability: >1 month at -5/+40C


Properties of coatings based on priplast and other polyols
Properties of coatings polyolsbased on PRIPLAST and other polyols

Polyol % water uptake adhesion cross cut

24h/23° 24h/50° alufoil steel acryl PVC ABS

PRIPLAST 3195 2 8 0 0 0 0 0

slight haze

PRIPLAST 3195/TMP 3 7 0 0 0 0 0

slight haze

HDO/NPG adipate 9 14 0 0 5 0 0

white

HDO/NPG 3 8 0 0 5 0 0

adipate/dimerate slight haze

Commercial PUD 8 15 4 0 0 1 1

white


Chemical resistance of coatings based on priplast and other polyols
Chemical resistance of coatings polyolsbased on PRIPLAST and other polyols

Polyol ethanol butter desin- coffee water ethyl aceton

(50%) fectant acetate

1 h 24h 10 min 24h 16 h 10 sec 10 sec

PRIPLAST 3195 1 0 1 0 0 5 5

PRIPLAST 3195/TMP 3 0 1 0 0 4 5

HDO/NPG adipate 0-1 0 1 0 0 5 5

HDO/NPG/AA/C36 0-1 0 1 0 0 5 5

Commercial PUD 5 1 5 2 5 4 4


Properties of coatings based on priplast and other polyols1
Properties of coatings polyolsbased on PRIPLAST and other polyols

Polyol Elongation Hardness Impact Gloss

(%) König pencil (cm.kg) (20°) (60°) (85°)

PRIPLAST 3195 290 108 4B > 200 135 137 113

PRIPLAST 3195

with 3% TMP 300 114 B > 200 166 141 118

HDO/NPG adipate 170 101 HB > 200 152 125 113

HDO/NPG

adipate/ dimerate 180 101 F > 200 149 135 111

Commercial PUD 273 120 B > 200 158 138 114

Gloss measured in gloss units



Benefits of priplast technology for pu dispersion coatings
Benefits of PRIPLAST technology for PU dispersion coatings polyols

outstanding dispersion stability

outstanding weatherability and low moisture absorption

outstanding chemicals resistance

good flexibility, hardness and gloss

readily manufacturable


Priplast polyols for adhesives
PRIPLAST polyols for adhesives polyols

For hot melts, reactive hot melts, polyurethane dispersions

for thermo-oxidative and hydrolytic resistance

for flexibility, also at low temperatures

for adhesion to low-energy substrates

for universal adhesion on a variety of substrates


Polyol effect of adhesion to steel final strength of moisture cured adhesive
Polyol effect of adhesion to steel polyolsfinal strength of moisture cured adhesive

PRIPLAST products


Polyol effect on adhesion to plastic final strength of moisture cured adhesive
Polyol effect on adhesion to plastic polyolsfinal strength of moisture cured adhesive

Untreated polyethylene

2.5 MDI/1 polyol

PRIPLAST products


Advice on priplast polyols for adhesives
Advice on PRIPLAST polyols for adhesives polyols

Specially recommended for applications with long open time.

Green strength is typically low because of non-crystalline character, but specialist advice is available to overcome this

moisture curing is slower because of hydrophobicity


Priplast 3191 in water repellent flexible pu sealant foam
PRIPLAST 3191 in water repellent, flexible PU sealant foam polyols

  • Low water absorption, hence good water sealing properties

  • Good hydrolytic resistance and compression set over conventional polyester foams, hence improved life cycle

  • Low fogging

  • Low air permeability, hence improved sealing properties


Compression set of pu foam from priplast dimerate vs other polyols
Compression set of PU foam from PRIPLAST dimerate vs. other polyols

Compression set after hydrolysis, %


Water seal test

Acrylic plates polyols

PU foam sealant

(dyecut, 50% compressed)

Water

Water seal test

100 mm

Water seal properties

Leaking of water after :

- PU from Priplast 3191 : > 24 hrs

- Conventional PU : < 10 min


Water absorption test

Acrylic plates, clamped polyols

PU foam sealant

(dyecut, 50% compressed)

Water

Water absorption test

Water absorption properties

- PU from Priplast 3191 : < 1% V/V

- Conventional PU : 20 % V/V

24 hrs. immersion in water


Physical properties
Physical properties polyols

Characteristic Priplast 3191 Conventional

polyester polyester foam

foam (low fogging grade)

Density, kg/m3 50 50

Water absorption (ASTM D 994) < 1% > 20%

Water seal properties > 24 hrs < 10 min.

Air permeability, litre / min < 15 50

Non fogging properties :

- Reflectrometric method 96.6 % 85.1 %

(3 hrs / 100 °C)

- Gravimetric method 0.70 mg 0.95 mg

(16 hrs / 100 °C)


Application of priplast 3191 based foams
Application of PRIPLAST 3191 based foams polyols

  • Automotive industry, sealants for :

    • Airconditioning systems

    • Windows

    • Head and tail lamps

    • Mirrors

    • Door locks

    • Sun roofs

  • General industry, sealants for :

    • Airconditioning and ventilation

    • Roof windows

    • Refrigerators


Starting formulation
Starting formulation polyols

(a) : Tegostab B-8002, ex. Th. Goldschmidt

(b) : Dispersant ex. Uniqema

(c) : Tertiary amine catalyst ex. Osi Specialities


Choosing the priplast polyol that is required
Choosing the PRIPLAST polyol that is required polyols

2 categories:

partially crystalline products: 3192, 3195

amorphous products: 3190, 3196, 3197, 3198, 1838, 1839

partially crystalline:

crystallinity gives additional tensile strength (esp. 3192)

crystallinity gives green strength in adhesives

crystallinity is good for hydrolytic stability

crystallinity comes with lower ingredient cost (because of adipic)

amorphous:

for adhesion to non-polar substrates and compatibilizing with non-polar matrices

for low glass transition temperatures (pressure sensitive adhesives, very flexible coatings)


Pripol 2033 dimerdiol
PRIPOL 2033 , dimerdiol polyols

Specifications :

  • acid value max. 0.20 mg KOH/g

  • saponification value max. 2.0 mg KOH/g

  • hydroxyl value 202 - 212 mg KOH/g

  • colour APHA max. 50 Hazen

  • moisture max. 0.10 %

  • monomer alcohol max. 2.0 %

  • dimer alcohol min. 96.5 %

  • trimer alcohol max. 1.5 %

  • viscosity typically 2500 mPa.s at 25 °C

    MW = approx. 540


Priplast polyester polyols portfolio
PRIPLAST polyester polyols: polyolsportfolio

3192 semi-crystalline best hydrolytic stability (like polycarbonate diol),

MW 2000 best tensile strength (similar to PTMEG), best green strength. for coatings, elastomers, adhesives

3195 semi-crystalline, cheaper alternative to 3192 (slightly less for

MW 2000 hydrolytic stability, green strength, tensile strength)

3190 amorphous, MW 2000 adhesives and coatings for low-energy substrates

applications that require a very low Tg (-20C and lower)

users that require a low-viscosity liquid

3196 amorphous, MW 3000 compatibilizing, pressure sensitive adhesives

3197 amorphous compatibilizing

3198 amorphous, MW 1300 coloured, for adhesives, primer coatings

1838 amorphous, MW 2000 pressure sensitive adhesives, compatibilizing

1839 amorphous, MW 2000 coloured cost-effective alternative to 1838

3191 amorphous, MW 1700 water-repellant foam


Priplast polyester polyols specifications
PRIPLAST polyester polyols: polyolsspecifications

PRIPLAST acid value OH-value Colour Moisture

mg KOH/g mg KOH/g Gardner %

3192 max. 0.5 52-60 max. 2 max. 0.1

3195 max. 1.0 52-60 max. 2 max. 0.10

3190 max. 1.0 52-60 max. 2 max. 0.08

3196 max. 0.5 34-40 max. 2 max. 0.1

3197 max. 0.5 52-60 max. 2 max. 0.08

3198 max. 1 78-88 max. 6 max. 0.01

1838 max. 1.0 52-60 max. 2 max. 0.08

1839 max. 1.0 52-60 max. 6 max. 0.08

3191 0.7-1.5 68-73 - max. 0.07


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