Phenolic Resins
Phenolic Resins for Friction Materials

Products

We offer phenolic resins as binder for friction materials which are used for brake linings, brake pads, clutch plates of transmission and others with superior heat resistance and adhesive performance.

Plants

  • Shizuoka Plant
  • P.T. Indopherin Jaya (Indonesia)
  • Sumitomo Bakelite (Nantong) Co., Ltd. (China)
  • Durez Corporation (USA)
  • Sumitomo Bakelite Europe NV (Belgium)
  • Sumitomo Bakelite Europe (Barcelona), S.L.U. (Spain)

Laboratories

  • High Performance Plastic Technology Development Laboratory
  • Sumitomo Bakelite Europe NV (Belgium)

LCA Study

Here is an example of LCA study of an application in which our phenolic resin is used.
This shows the effect of reducing CO2 emissions when phenolic resins for friction material are replaced with biomass-based materials from conventional materials.
We use MiLCA, a globally recognized LCA calculation module for calculation. Please contact us for more information.

CO2 Emission Reduction Effect (Resin For Brake Friction Material)

photo
Effects Of Replacement: Conventional Materials ⇒ Biomass-derived, Short-time Molding Type Resin
  CO2 emissions (kg-CO2eq/kg)
Equipment to 1 Passenger Car
Notes
Conventional
Resin
Biomass
Resin
Shorter
Process
Resin
  Straight
Powder Resin
30% Lignin
Modified Resin
Low Temp.
Cure Resin
Shorten Process Resin:
Assuming Energy reduction at product
of pad by 30%
Friction material:
as a whole (a)
<>Only Resin potion (weight%)
N/A
<0.42>
N/A
<0.36>
N/A
<0.42>
Resin Content 0.1%
Pad manufacturing (b) 2.6 1.8 Resin types do not matter to the numbers
Impact on driving (c) 8.8 Replacing cycle 50,000km
Disposal (incineration,
recycling, etc.) (d)
<>Only Resin potion (weight%)
N/A
<0.14>
N/A
<0.10>
N/A
<0.14>
Resin Content 0.1%
Sum 11.96 <11.86> <11.16>  
CO2 Reduction from
Conventional material
(Per vehicle)
 
0.1kg

0.8kg
As 0.25 kg/pad x 4/front wheel

CO2 Reduction from Conventional material to Biomass Resin 0.09kg and
to Shorter Process Resinamount 0.8㎏-CO2eq per vehicle.

Remark

  • CO2 emissions and reductions are only for resin in friction
  • These data are representative values based on conditions in the tire production process and are not guaranteed.

(a)(b)
1) Calculation Conditions
• Data Base: IDEA v2.3
• Impact Area: 100-Year Index (IPCC, 2013)
• Characterization model and target item: Climate change

2) System Boundary:
(a) Raw Material - Product Shipment
(b) Product Production on similar processes

3) Production plant: Sumitomo Bakelite Co., Ltd. Shizuoka Plant

4) Data collection period: April 2021 - March 2022

(c) Cited by JAPIA_LCI_TOOL_USE_PHASE_GENERIC_Ver208
Condition:
Car Type: Four Wheel Passenger Vehicle (WLTP)
Lifetime fuel consumption per 1kg: 1.675L/kg
CO2 emission intensity per energy consumption for gasoline: 2.601kg-CO2/L
Number of putts replaced in Lifetime: 2times
Car the usage, from cradle to grave, of condition is 100,000 kilometers
Molding Parts, Brake pads, are used 8 parts per Car
(d) CO2 emissions theoretically combusted

Using MiLCA, LCA of automotive molded parts can now be calculated.
Please use this information for comparison with your company's current parts.

Features

High Performance, High Reliability

We offer various types of phenolic resins which provide superior heat resistance, good flexibility, high mechanical strength and good friction properties.

Applications

Automotive/Railways/Aircraft

Automotive Mechanical components

Brakes

Brake Linings, Brake Pads

Transmission

Clutch Facing, Paper Clutch Facing for MT/AT/DCT

Other Applications

Brake Shoe for train, Friction Materials for industrial brake

Expected Brake Pads Performance vs. Corresponding Type of Phenolic Resin

Click the grade number for more information.
Expected
Friction
Performance
◀◀ Focus on Flexibility  ◀◀  (Non-modified resin)  ▶▶  Focus on Heat Resistance ▶▶
Low Noise
Acryl mod.
PR-55291A
Acryl mod.
PR-55291
Silicone mod.
PR-54529
Silicone mod.
PR-56291

Flexibility at low temp.

Water
Resistance

Water Repellency

Aralkyl mod.
PR-54458A,etc.

Heat
Resistance

Wear
Resistance
Melamine mod.
PR-56341
Amide mod.
PR-56531

Wear Resistance

Moldability
Fast Curing
Resin
PR-51794,etc.

Fast Curing

Eco-
friendly
Lignin mod.
PR-X20068,etc.

Utilizing
Biomass

Specifications

SUMILITERESIN®PR Series

Powder novolak resin
Grade Melting point (°C) Flow (mm) Hexamine content Advantage Application
*PR-311 83 60 Medium High heat resistance,
high mechanical strength
Brake linings
PR-12687 78 45 Medium Flexibility Brake linings
(for oversized vehicles)
PR-13355 80 50 Medium Flexibility Brake linings
PR-50064 90 20 Medium High heat resistance,
high mechanical strength
Brake pads
PR-50069 95 0 High Flexibility Brake linings,
Railway brakes
PR-51510 88 35 Medium High heat resistance Brake linings
PR-51794 102 12 High High heat resistance,
high mechanical strength
Brake pads
PR-53724 93 33 High High heat resistance,
high mechanical strength
Brake pads
PR-53497 98 27 High High heat resistance,
Good mechanical strength
Brake pads
PR-54458A 115 39 Medium High heat resistance Brake pads
PR-55170 89 29 High High heat resistance Brake pads
PR-51316M 94 51 Low High heat resistance,
Flexibility
Brake linings
(for oversized vehicles)
PR-54529 92 38 Medium Water Repellency,
Flexibility
Brake pads
PR-54529H 94 36 Medium Water Repellency,
Flexibility
Brake pads
PR-56291 100 18 Medium Water Repellency Brake pads
PR-56291L 92 40 Medium Water Repellency Brake pads
PR-55291 - 40 Medium Flexibility Brake pads
PR-55291A - 40 Medium Flexibility Brake pads
PR-56341 97 27 Medium High heat resistance Brake pads
PR-56531 - 25 Medium Wear resistance Brake pads
PR-X20068 - 15 Medium Utilizing Biomass Brake pads
PR-X20084 - 26 Medium Utilizing Biomass Brake pads,
Brake linings

Remark

  • * Please refer to the poisonous material control law(s) applicable in your country when you use this product.
  • The data given above are not guaranteed values.
Liquid resol resin
Grade Viscosity
(MPa·s)
Resin content
(%)
Solvent Modification Advantage
PR-50385 30 40 Methanol Cresol High heat resistance,
flexibility
PR-53123 10 45 Methanol Alkyl benzene Good wear resistance
PR-53717 80 50 Methanol
/Toluene
Oil Flexibility
PR-54562 14 48 Methanol Low molecular weight Good impregnation performance,
high durability
PR-55386 9 38 Water Melamine Water soluble grade
(environmental friendly)
PR-55536 11 44 Acetone Acrylic polymer Flexibility

Remark

  • The data given above are not guaranteed values.

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