Polyarylate resin

U polymer

P series resins (transparent heat-resisting grade)

P series resins are resins succeeding the characteristics of the neat polymer, U-100, and improved in flowability and optical properties. Among many super engineering plastics, the resins are few transparent polymer alloys that have heat resistance. The heat-stable P-series resins have variations different in heat resistance in the range from 150 to 175°C. There are few transparent heat-resistant resins among super engineering plastics, and thus P series resins are valuable. The resins have favorable weather resistance, and in particular, the P-1001 resin is approved by SAE Standard (J576 and J578) and FMVSS Standard (108). Making the most of these characteristics, the resins may be used, for example, as the lenses for automobile lamps. High flow-type resins, P-1001A, and P-3001S, are also available for thin molding products.

Characteristics

  1. Transparent, heat resistant, deflection temperature under load: 150 to 175°C (under a great load of 1.8 MPa)
  2. High weather resistance
  3. High creep resistant
  4. High dimensional stability
  5. High impact strength

Properties

Item
ASTM
Unit: SI
(conventional)
P-1001
P-3001
P-5001
Mechanical
Properties
Density
D-792
-
1.21
1.21
1.21
Water absorption (1/8", 24hrs)
D-570
%
0.26
0.25
0.25
Light transmittance (Thickness: 3mm)
D-1003
%
87
88
88
Tensile strength
D-638
MPa {kg/cm2}
69 {700}
69 {700}
65 {660}
Elongation at break
D-638
%
65
80
80
Flexural strength
D-790
MPa {kg/cm2}
82 {840}
83 {850}
86 {880}
Flexural modulus
D-790
GPa {kg/cm2}
2.1 {21,000}
2.1 {21,000}
2.2 {22,500}
Compressive strength (Yield)
D-695
MPa {kg/cm2}
81 {830}
79 {810}
76 {780}
Izod impact strength
(1/8", with notch)
D-256
J/m
{kg-Ecm/cm}
255 {26}
353 {36}
451 {46}
Rockwell hardness
D-785
R
123
122
120
Thermal
properties
Deflection temperature under load
1.8MPa {18.6kg/cm2}
D-648
°C
175
160
150
Coefficient of linear thermal expansion
D-696
10-5/K
{10-5cm/cm/°C}
6.2
6.2
6.3
Electrical
Properties
Dielectric breakdown strength
D-149
MV/m {kv/mm}
31
30
30
Specific volume resistivity
D-257
Ωm {Ωcm}
2x1014
{2x1016}
2x1014
{2x1016}
2x1014
{2x1016}
Dielectric constant (106Hz)
D-150
PF/m
27 {3.0}
27 {3.0}
27 {3.0}
Dielectric dissipation factor(106Hz)
D-150
-
0.01
0.01
0.01
Ark resistance
D-495
s
127
125
125
Tracking resistance
IEC
V
-
-
-
Other
properties
Molding shrinkage
(Thickness: 3mm)
Flow direction, orthogonal direction
-
%
0.8
0.8
0.8

Properties of (High-flow grade resins)

Item
ASTM
Unit: SI
(conventional)
P-1001A
P-3001S
Mechanical
Properties
Density
D-792
-
1.21
1.21
Water absorption (1/8", 24hrs)
D-570
%
0.26
0.24
Light transmittance (Thickness: 3mm)
D-1003
%
88
89
Tensile strength
D-638
MPa {kg/cm2}
69 {700}
66
Elongation at break
D-638
%
50
45
Flexural strength
D-790
MPa {kg/cm2}
81 {830}
84
Flexural modulus
D-790
GPa {kg/cm2}
2.1 {21,000}
2.2
Compressive strength (Yield)
D-695
MPa {kg/cm2}
81 {830}
-
Izod impact strength (1/8", with notch)
D-256
J/m
{kg-Ecm/cm}
196 {20}
300
Rockwell hardness
D-785
R
123
-
Thermal
properties
Deflection temperature under load
1.8MPa {18.6kg/cm2}
D-648
°C
175
169
Coefficient of linear thermal expansion
D-696
10-5/K
{10-5cm/cm/°C}
6.2
6.0
Electrical
Properties
Dielectric breakdown strength
D-149
MV/m {kv/mm}
31
Specific volume resistivity
D-257
Ωm {Ωcm}
2x1014
{2x1016}
 
Dielectric constant (106Hz)
D-150
PF/m
27 {3.0}
 
Dielectric dissipation factor(106Hz)
D-150
-
0.01
 
Ark resistance
D-495
s
127
 
Tracking resistance
IEC
V
-
 
Other
properties
Molding shrinkage (Thickness: 3mm)
Flow direction, orthogonal direction
-
%
0.8
0.8