>> POLYTETRAMETHYLENE ETHER GLYCOL (PTMEG)
Process : Korea PTG Co., Ltd.
Korea PTG Co., Ltd. has newly developed the manufacturing process of polytetramethylene ether glycol(PTMEG). This process utilizes the continuous production system of the most excellent quality with high consistency. PTMEG is synthesized by the polymerization of Tetrahydrofuran(THF).It is colorless and viscous liquid over room temperature. PTMEG is mainly used for production of polyurethane, elastomers, spandex fibers and copolyester-ether elastomers. Korea PTG has a variety of product specification with seven standard grades of molecular weights in 210, 650, 1000, 1400, 1800, 2000 and 3000. PTMEG products with other molecular weights can be produced upon special request of customers. Please contact our sales office for specific information.
1) Chemical nomenclature a-hydor-?-hydroxy-poly(oxy-1.4- butanediol) (According to IUPAC and CAS) Cas No. 25190-06-1 Formular HO [- CH2 CH2 CH2 CH2O -]n H
2) Synonyms Polytetramethylene ether glycol (PTMEG) Poly(oxytetramethylene) glycol Polytetramethylene oxide(PTMO) Polybutylene glycol Polytetrahydrofuran(PTHF)
Production Capacity : 30,000 MTA
-. Product Physical Properties
PTMEG GRADE
210
650
1000
1400
1800
2000
3000
Appearance
A White waxy sold, and may become transparent liquid over a room temperature
Average Molecular Weight
210
650
1000
1400
1800
2000
3000
Hydroxyl Number
534.3
172.6
112.2
80.1
62.3
56.1
37.4
Viscosity (40°C, cP)
50
205
270
660
1215
1225
1350
Specific Gravity (40/4°C)
0.991
0.984
0.981
0.978
0.976
0.974
0.97
Refractive Index
1.462
1.462
1.463
1.463
1.464
1.464
1.464
Melting Point (Tm, °C)
-5
19
24
26
28
32
35
Glass Transition Point (Tg)
-80
-76
-76
-76
-76
-76
Flash Point (open cup)
More than 260
Alkalinity (mIN/1000HCL/30g)
From -3.0 to +1.0
Iron (wt,ppm)
Less than 1
Solubility
Readily soluble in alcohols, esters and ketones, aromatic and chlorinated hydrocarbons, Insoluble in aliphatic hydrocarbons and water, Has a tendency to decrease its solubility as molecular weight increases.
Hygroscopicity
There PTMEG are all hygroscopic at room temperature. PTMEG can abosrb to 2 wt, % water depending on the molecular weight.
-. Product Specifications
Product
PTMEG210
PTMEG650
PTMEG1000
PTMEG1400
PTMEG1800
PTMEG2000
PTMEG3000
Molecular Weight
210±25
650±25
1000±25
1400±25
1800±25
2000±25
3000±25
Hydroxyl Number(mgKOH/g)
477.4~606.5
166.2~179.5
106.9~118.1
77.4~83.1
60.6~64.1
54.7~57.5
36.2~38.7
Color (APHA)
40 max.
Acid Number (mgKOH/g)
0.05 max.
Water (wt.ppm)
250 max.
200 max.
200 max.
200 max.
150 max.
200 max.
200 max.
Peroxide(wt.ppm as H2O2
2 max.
Volatiles (wt.ppm)
0.1 max.
Stabilizer (wt.ppm as BHT)
220±50
Metal (wt.ppm as Fe)
1 max.
CAS No.
25190-05-01
-. Uses
PTMEG belongs to the class of polyether polyols which have excellent reactivity. It is used to make a high quality of poplyurethane including spandex and copolyester-ether in such applications as:
Polyol for polyurethane
USES
APPLICATIONS
Polyurethane Fibers (Spandex)
Swimwear, Underwear, Stockings, etc
Polyurethane Elastomers
Wheels, Rollers, Hoses, Tubes, Cable, Automotive parts, etc.
Synthetic Leathers
Shoes, Bags, etc.
Paint, Coating Agent
Water resistant coatings, etc.
Adhesives, Sealants
Adhesives for industry and building
Polyol for polyester & polyamide
USES
APPLICATIONS
Polyester Elastomers
Automotive parts, Cables, Hoses, Tubes, etc.
Polyamide Elastomers
OA parts, Ski boots, Roller skates, Belts, etc.
POLYTETRAMETHYLENE ETHER GLYCOL (PTMEG)
Description
Product Inquiry
Purchase Product Catalog
Payment & Shipping Conditions:
- Payment: We accept payment through Paypal Only.
- Shipping: We will ship the catalog once the payment is received. And you will be receiving the catalog with in 10 -14 busines days. Shipping might be delayed in due to international shipping conditions which is depends on the countries receiveing. In case hard copy of catalog is not available then we will ship the soft copy.
- Refund: We can refund the order before shipping process was initiated. Incase Catalog not available, we will make sure to refund the order.
- Note: This is a Catalog Produt.
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