Product atalog

Polyethylene terephthalate

The state-of-the-art production process of PET, characterized by a continuous synthesis of polymer, makes it possible to produce high-quality PET for use in the production of high and medium tenacity yarns and moulded articles.

Grades of polyethylene terephthalate and their application:
grade D for textile yarns;
grade E for industrial yarns;
grade ET for Trilobal yarns;
grade GR for high modulus low shrinkage industrial yarns;
grade B2 for industrial yarns, films;
grade S for fiber, Christmas tree decorations;
grade S1- for the manufacture of polymer varnishes;
grade PN-3 for film and magnetic tape backing.
Appearance, physical and chemical properties of the polyethylene terephthalate correspond to the values given in Tables 1, 2, 3

Polyethylene terephthalate copolymer

grade SF2 for copolymer used to produce bottles, jars and other packaging for food, health and beauty aids, cleaning agents and other household chemicals;
grade SN for polyester fiber;
grade S2 - for the manufacture of nonwovens.
Appearance, physical and chemical properties of the polyethylene terephthalate copolymer correspond to the values given in Table 4.

SPET 8200 grade "L" - for disposable bottles for mineral water, soft and low alcohol drinks, 6.0 & 9.0 % vinegar, juices, vegetable oils, jelly, paste, free-flowing & solid food products, as well as for cosmetic, pharmaceutical and other household chemical goods
Appearance, physical and chemical properties of the polyethylene terephthalate copolymer correspond to the values given in Table 5.

Table 1

Parameter description

Grade

D

E

GR

B2

ET

Appearance

Pellets from light grey to light yellow

Transparent pellets from colorless to pale blue

Pellets from light grey to light yellow

Pellet size, mm

(3,8±0,5)(2,5±0,5)
(4,0±0,75)

-

Weight of 100 pellets, g

-

-

1,9-2,1

1,9-2,2

3,6-4,4

Specific viscosity in dichloroacetic acid, units

827±7

835±9

835±7

835±9

835±9

Moisture (water) content, % w/w, not more than

0,1

0,1

0,1

0,1

0,2

Titanium dioxide content, % w/w

0,300±0,020

0,020±0,005

0,010±0,005

-

0,010±0,005

Color difference coordinates CIE 1976 with illuminant D65, geometry d/8(d/10) specular component excluded:
a) L*, units, not less than
b) b*, units, not more than
75
8
58
4
51
5
60
-
51
5

Carboxyl end groups (carboxylic number), mmol/kg, not more than

30,0

30,0

30,0

25,0

30,0

Diethylene glycol content, % w/w, not more than

0,8

0,8

1,1

1,1

0,9

Softening (melting) point, o

261±2,0

261±2,0

259±2,0

259±2,0

259±2,0


Table 2

Parameter description Grade
S S1
Appearance Pellets from colorless to grey or yellow Transparent pellets from colorless to grey or yellow
Pellet size, mm, not more than (6,0 4,0 11,0) -
Specific viscosity in dichloroacetic acid, units 700-900 700-900
Moisture (water) content, % w/w, not more than 0,2 0,5
Titanium dioxide content, % w/w 0,0-0,5 -

Table 3

Parameter description

Polyethylene terephthalate grade PN-3

Appearance

Transparent pellets

Pellet size, mm

(3,8±0,5)(2,5±0,5)(4,0±0,75)

Specific viscosity in dichloroacetic acid, units

(840 -870)*±10

Moisture content, % w/w, not more than

0,5

Color difference coordinates CIE 1976 with illuminant D65, geometry D/8 specular component excluded:
- L*, units, not less than
- b*, units, not more than
55
7,5

Carboxyl end groups, mmol/kg, not more than

30,0

Softening point, , not less than

255

Ash content, % w/w, not more than

(0,20 - 0,48)

Silicon dioxide content, % w/w, not more than

(0,10 - 0,40)*±0,04


Table 4

Parameter description

Grade

SF2

SN

S2

Appearance

Transparent pellets from colorless to pale blue

Transparent pellets from colorless to greenish

Transparent pellets from colorless to grey or yellow

Weight of 100 pellets, g

1,80-2,20

3,60-4,40

-

Specific viscosity in dichloroacetic acid, units

(750-825)*±9

920-970

700-900

Moisture content, % w/w, not more than

0,1

0,4

0,5

Color difference coordinates CIE 1976 with illuminant D65, geometry d/8 specular component excluded:
L*-units, not less than
*-units, not less than
b*-units, not more than

 

52,0
-
1,5

 

43,0
-4,0
10,0

 

-
-
-

Carboxyl end groups, mmol/kg, not more than

30

35

-

Content of pellets with foreign impurities, % w/w, not more than

0,07

0,3

5,0

Diethylene glycol content, % w/w

1,0 2,0

4,0 - 9,0

-

Melting point,

250±5

-

-

Softening point,

-

105-130

-


Table 5

Name of Characteristic SPET 8200 grade "L"
BY 700117487.004-2009
Appearance and Color Chips of white color
Weight of 50 Chips, g 0,9-1,1
Dust Weight Fraction, %, no more than 0.05
Intrinsic Viscosity, dl/g 0.78-0.82
Melting Point,  
Color Difference in Units CIELAB MKO 1976 with d/10, D65/10
- L*, not less than:
- a*
- b*, not more than
73.9
-2.02.0
1.5
Acetaldehyde Weight Fraction, ppm, no more than 1.0