Polyamide Resin LEONA™
Polyamide Resin
LEONA™
The Asahi Kasei LEONA™ grades are molding compounds based on PA66, PA612 and semi-aromatic polyamides such as PA66/6I. The range is available in unfilled grades as well as reinforced with glass fibers and special composites. LEONA™ is noted for its high strength, heat, oil, and abrasion resistance as well as for its processability.
Asahi kasei has long experience on the polyamide market since 1972, and is fully able to produce PA66 completely from monomer to compound. Our compounding technologies allow for global quality with local production.
Capacity
76,000 Mt/year
Polyamide Resin
LEONA™
The Asahi Kasei LEONA™ grades are molding compounds based on PA66, PA612 and semi-aromatic polyamides such as PA66/6I. The range is available in unfilled grades as well as reinforced with glass fibers and special composites. LEONA™ is noted for its high strength, heat, oil, and abrasion resistance as well as for its processability.
Asahi kasei has long experience on the polyamide market since 1972, and is fully able to produce PA66 completely from monomer to compound. Our compounding technologies allow for global quality with local production.
Capacity
76,000 Mt/year
What is LEONA™ ?
LEONA™ is a trademark of PA66 resin, manufactured and sold by Asahi Kasei.
LEONA™ PA66 (reinforced) resins is an engineering plastic with excellent heat resistance, strength and rigidity. The LEONA™ family includes a wide range of grades with reinforced technology and alloy technology, and provides the optimum grade according to customer needs or application.
Features of LEONA™
The features of LEONA™ among general-purpose engineering plastics are shown below.
Advantages
1. Excellent heat resistance
2. Excellent toughness, durability, electrical characteristics, etc., and excellent balance of characteristics
3. Excellent oil resistance
Disadvantages
1. It is necessary to consider the dimensional change during water absorption when designing.
2. Please be careful when using in contact with acidic substances.
Features of glass-fiber reinforced LEONA™ resin
Advantages
1. Excellent strength and rigidity
2. Excellent toughness, durability, electrical characteristics, etc., and excellent balance of characteristics
3. Improved water absorption and better dimensional stability
Disadvantages
1. Glass-fiber reinforced plastics have general drawbacks such as anisotropy, weld strength, and screw wear during molding

Production for LEONA™
LEONA™ is manufactured in an integrated manner from raw materials to products using proprietary technology.
LEONA™ Application cases
Chain guide shoe
Support shoe parts for automobile engine timing chains
Products
Grades
1442/1542
By optimally dispersing lubricant, excellent low friction and wear resistance together with mechanical properties and moldability of general PA66 resin.
Features
・Low friction, low wear
・High heat resistance
・standard and high molecular weight grade available
Timing chain case
Keep chain clean by preventing from water/dust.
Products
Grades
SV104
The special polymer design of LEONA™ SV series enhances the damping effect of vibration and sound compared to general PA66. Blending glass fiber can improve its strength and rigidity higher.
Features
・High attenuation performance
・High strength
・High heat resistance
Water pipe
Engine cooling water circulation pipe
Products
Grades
53G33
・Low water absorption, GF33% reinforced grade
・Low water absorption provides excellent hydrolysis resistance and calcium chloride resistance
Features
・Heat resistance
・Hydrolysis resistance
・Calcium chloride resistance
・Moldability (molding of bent pipe)
Smart key housing
Key housing allows you to unlock and lock vehicle and turn the engine on and off while keeping it in your pocket or bag
Products
Grades
90G33
combines high rigidity, good appearance, weather resistance, and easy moldability.
Features
・Good appearance
・Weatherability
・Easy moldability
Magnet switch
A switch that opens and closes electrical contacts using an electromagnet
Products
Grades
・SN series, FG series: Glass fiber reinforced, UL94: V-0
・SN series: GF reinforced non-halogenated flame retardancy
・FG series: GF reinforced flame retardancy
Features
・Excellent laser printability
・Moldability
・Wear resistance
・Excellent electrical characteristics (CTI)
・Snap fit stability
Connector
For wiring electrical and electronic components
Products
Grades
SN series
FR series
FG series
・ SN series: GF reinforced non-halogenated flame retardancy
・ FR series: non reinforced flame retardancy
・ FG series: GF reinforced non flame retardancy
Features
・Laser printability
・Moldability
・Strength, toughness
・Electrical characteristics (CTI)
・Heat resistance
Water meter case
Meter case to measuring the amount of drinking water used
Products
Grades
90W50 T33G0
It has fatigue resistance and excellent surface smoothness. Also supports drinking water certification standards
Features
・Fatigue resistance
・Good appearance,
・Drinking water certification
Crescent
It acts as a lock to be attached to windows and sashes with metal fittings for fittings.
Products
Grades
90G50, 91G55
90G50 : A grade characterized by high stiffness, good appearance, and excellent moldability
91G55 : A grade characterized by excellent appearance, and moldability and low warpage
Features
・Good appearance/high designability
・Realized warm touch/texture and functionality with the use of plastic rather than metal.
・Elimination of such problems as shrinkage or warpage by the use of AGI molding
Solenoid valve
Controls the opening and closing of the flow in a pipe that allows fluid and gas to pass through by air pressure, pneumatic pressure, water pressure, etc.
Products
Grades
SH10E
A grade providing high rigidity as well as UL94:V-0 (1.5 mm)
Features
・High stiffness and flame retardancy V-0
・Improved deformation/fracture resistance at bolt tightening
・No annealing required
Gear box / Gear reducer
A speed changer that decelerates the speed obtained by the motor to generate the necessary force
Products
Grades
・Under development(Filler reinforcement)
・Well balanced friction& wear resistance together with High fatigue resistance performance of PA66
Features
・Friction& wear resistance
・High modulus
・Good fatigue resistance
Chain guide shoe
Support shoe parts for automobile engine timing chains
Products
Grades
1442/1542
By optimally dispersing lubricant, excellent low friction and wear resistance together with mechanical properties and moldability of general PA66 resin.
Features
・Low friction, low wear
・High heat resistance
・standard and high molecular weight grade available
Timing chain case
Keep chain clean by preventing from water/dust.
Products
Grades
SV104
The special polymer design of LEONA™ SV series enhances the damping effect of vibration and sound compared to general PA66. Blending glass fiber can improve its strength and rigidity higher.
Features
・High attenuation performance
・High strength
・High heat resistance
Water pipe
Engine cooling water circulation pipe
Products
Grades
53G33
・Low water absorption, GF33% reinforced grade
・Low water absorption provides excellent hydrolysis resistance and calcium chloride resistance
Features
・Heat resistance
・Hydrolysis resistance
・Calcium chloride resistance
・Moldability (molding of bent pipe)
Smart key housing
Key housing allows you to unlock and lock vehicle and turn the engine on and off while keeping it in your pocket or bag
Products
Grades
90G33
combines high rigidity, good appearance, weather resistance, and easy moldability.
Features
・Good appearance
・Weatherability
・Easy moldability
Magnet switch
A switch that opens and closes electrical contacts using an electromagnet
Products
Grades
・SN series, FG series: Glass fiber reinforced, UL94: V-0
・SN series: GF reinforced non-halogenated flame retardancy
・FG series: GF reinforced flame retardancy
Features
・Excellent laser printability
・Moldability
・Wear resistance
・Excellent electrical characteristics (CTI)
・Snap fit stability
Connector
For wiring electrical and electronic components
Products
Grades
SN series
FR series
FG series
・ SN series: GF reinforced non-halogenated flame retardancy
・ FR series: non reinforced flame retardancy
・ FG series: GF reinforced non flame retardancy
Features
・Laser printability
・Moldability
・Strength, toughness
・Electrical characteristics (CTI)
・Heat resistance
Water meter case
Meter case to measuring the amount of drinking water used
Products
Grades
90W50 T33G0
It has fatigue resistance and excellent surface smoothness. Also supports drinking water certification standards
Features
・Fatigue resistance
・Good appearance,
・Drinking water certification
Crescent
It acts as a lock to be attached to windows and sashes with metal fittings for fittings.
Products
Grades
90G50, 91G55
90G50 : A grade characterized by high stiffness, good appearance, and excellent moldability
91G55 : A grade characterized by excellent appearance, and moldability and low warpage
Features
・Good appearance/high designability
・Realized warm touch/texture and functionality with the use of plastic rather than metal.
・Elimination of such problems as shrinkage or warpage by the use of AGI molding
Solenoid valve
Controls the opening and closing of the flow in a pipe that allows fluid and gas to pass through by air pressure, pneumatic pressure, water pressure, etc.
Products
Grades
SH10E
A grade providing high rigidity as well as UL94:V-0 (1.5 mm)
Features
・High stiffness and flame retardancy V-0
・Improved deformation/fracture resistance at bolt tightening
・No annealing required
Gear box / Gear reducer
A speed changer that decelerates the speed obtained by the motor to generate the necessary force
Products
Grades
・Under development(Filler reinforcement)
・Well balanced friction& wear resistance together with High fatigue resistance performance of PA66
Features
・Friction& wear resistance
・High modulus
・Good fatigue resistance
Grade List
General | Heat stabilized | Flame retardant | Friction modified | Excellent surface and enhanced strength | High stiffiness after absorption of water | Excellent surface and enhanced stiffness | Hydrosis resistance | |
---|---|---|---|---|---|---|---|---|
Non reinforced | 1300S | 1402S | FR200 FR370 FR650 |
1442 | ||||
GF reinforced | 13G15 1300G 13G43 13G50 |
14G15 14G25 14G30 1402G 14G33 14G35 14G43 14G50 |
FG170 FG172 FG171 FG173 FH772 SH10E SN10B SN103 |
90G33 90G50 90G55 90G60 |
SG104 SG105 SG106 |
93G33 54G33 54G43 |
BG230 53G33 |
|
Special composites | CR301 CR302 1330G |
CR103 MR001 |
91G55 91G60 |
|||||
Impact modified | TR161 TR382 |
|||||||
High molecular | 1500 1700S 9400S |
1502 1502S 1702 |
1542 |
Grade Search
Product Data / Tips for Use
QWhat is the relationship between molding shrinkage and water absorption dimensional change of Leona?
QWhat is the relationship between GF orientation and product design precautions?
QWhat is actions for anti-warping?
QWhat is annealing and humidity control?
QHow to remove the mold deposit?
QWhat is the rework material and the condition used?
QWhat is the effect of discoloration during drying on physical properties?
QHow is the relationship between mold shrinkage rate and molding temperature?
QHow is the relationship between molding conditions and crystallization?
QWhat is the maximum thickness of the product and the minimum thickness?
QIs pre-drying necessary?
QWhat is the shape of GF?
QHow to read the grade numbers?
QWhat are halogenated flame retardants and non-halogenated flame retardants?
QWhat is the masterbatch?
QWhat is the difference between crystalline and amorphous resins?
QWhat is the lublicity grade?
QWhat kind of inorganic fillers are there?
QWhat is UL?
1. UL-94: Combustion test for plastic materials: Depending on the thickness of the test piece, there is 94HB, 94V-2, 94V-1, 94V-0, and generally the thinner the wall thickness, the more easily it burns.
2. UL-746A: The following two are used in the specification for short-term physical property assessment of plastic materials: In the case of a thermoplastic resin, it is applied in a use environment in which a dynamic external force is applied, and is determined by a tensile impact value (Izod value in the case of a thermosetting resin).The labeling method is applied in a use environment in which only "Mech,with imp static" external force is applied, and in the case of a thermoplastic resin, it is determined by a tensile strength (bending strength in the case of a thermosetting resin), and the labeling method is "Mech,w/o imp"
3. UL-746B: The following are used in the specification for long-term physical property assessment of plastic materials: Rated temperature Indicates a constant temperature at which the initial physical properties (e.g., electrical and mechanical properties) drop to 50% when exposed to air at a constant temperature for 0.1 million hours. Indicates RTIs (Relative Thermal Index) at °C.
4. UL-746C: UL-ranked by the rating level in the standard for evaluating the electrical use of plastic materials. (PCL:Performance Level Categories) uses the following five.
(1) Hot-wire ignitability: The degree to which the material is heated and ignited is evaluated in the number of seconds of ignition, and the indication is in five levels from 0 to 5 in the HWI (Hot-Wire Ignition) PCL-rank. The smaller the number, the better.
(2) Large current arc ignitability: The degree to which the material ignites by arc discharge is evaluated by arc number, and the indication of HAI (High-Ampare Arc Resistance) PCL rank is better as the number is smaller in 5 stages from 0 to 4.
(3) Arc Resistance: The degree to which a conductive path is formed, attributed to arcs according to ASTM D495, is evaluated in seconds, the indicia are shown as D495, and the PCL rank is 8 steps from 0 to 7, and the smaller the number, the better.
(4) High-voltage tracking: Repeated high-voltage, low-current arcing on the surface of the material, evaluating the degree to which the material can cause a conductive path, evaluating at the tracking speed (millimeters/minute), labeling is HVTR(High Voltage Arc Tracking Rate.
(5) Tracking Resistance: Evaluate the degree of voltage that causes the material to create a permanent carbonized conductivity path, the indication is CTI (Comparative Tracking Index), the PCL-rank is six steps from 0 to 5, the smaller the number, the better.
5. UL-746D: Standards for plastic-material assemblies
QWhat is the difference between ductile fracture and brittle fracture?
QWhat is the difference of weather and light resistant?
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