Table 2: TOYOLAC™ Mold shrinkage Rates

Molding temperature	Measurement dimension		TOYOLAC™ 250	TOYOLAC™ 500	TOYOLAC™ 700	TOYOLAC™ 100	TOYOLAC™ 300
230°C	Transverse direction	Dimension A	0.44%	0.44%	0.46%	0.47%	0.52%
		Dimension B	0.50%	0.49%	0.52%	0.53%	0.55%
	Machine direction	C	0.47%	0.47%	0.49%	0.50%	0.57%
250°C	Transverse direction	Dimension A	0.47%	0.47%	0.49%	0.50%	0.56%
		Dimension B	0.54%	0.53%	0.55%	0.47%	0.59%
	Machine direction	C	0.50%	0.50%	0.52%	0.54%	0.61%

* Dimensions were measured after allowing the product to sit for 24 hours at 23°C/50%RH.

Molding conditions

Figure 2: Sample shape and
measurement dimensions (mm)

• Molding temperature:230°C
• Mold temperature:60°C
• Injection speed: Medium (FCV scale B-O) (Fill-in time: 2.0 seconds)
• Holding time: 13 seconds
• Cooling time: 30 seconds
• Back pressure: 0.98Mpa
• Screw rotation: 53r/min
• Injection pressure: Find the lowest pressure at which resin fills the cavity, then add +0.98MPa
• Sample dimensions: 127×76×3mmt

Spiral Flow Length

Molding conditions

Figure 3: Relationship between cylinder temperature
setting and spiral flow length of TOYOLAC™

• Molding machine: Toshiba IS-50
• Mold: Spiral flow 10w×2mmt
• Injection speed: B-10 (medium speed)
• Molding cycles: 15/20sec.
• Screw back pressure: 0.98Mpa
• Screw rotation: 53r/min
• Mold temperature: 60°C

Temperature dependence of flexural modulus

Figure 4: Temperature dependence of flexural
modulus in TOYOLAC™

Temperature dependence of Izod impact strength

Figure 5: Temperature dependence of Izod impact
strength in TOYOLAC™