Phenolic Resins for Friction Materials | Sumitomo Bakelite Co., Ltd.

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)

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	Notes
	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
Low Noise	Flexibility at low temp.		Silicone mod. PR-54529	Silicone mod. PR-56291
Water Resistance			Water Repellency		Aralkyl mod. PR-54458A,etc. Heat Resistance
Wear Resistance					Aralkyl mod. PR-54458A,etc. Heat Resistance	Melamine mod. PR-56341 Flame Retardance
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-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