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Merck
CN

433497

Poly(propylene glycol), tolylene 2,4-diisocyanate terminated

average Mn ~2,300 (narrow MW distribution), isocyanate ~3.6 wt. %

Synonym(s):

Polypropylene glycol-toluene diisocyanate copolymer, Tolylene diisocyanate-polypropylene glycol polymer

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About This Item

CAS Number:
UNSPSC Code:
12162002
PubChem Substance ID:
NACRES:
NA.23
MDL number:
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form

viscous liquid

Quality Level

mol wt

average Mn ~2,300 (narrow MW distribution), degree of polymerization ~34

composition

isocyanate, ~3.6 wt. %

hardness

80 (Shore A, reacted with MOCA)

impurities

<0.1% residual TDI

refractive index

n20/D 1.4742

viscosity

≤1,700 cP(40 °C)(lit.)

density

1.05 g/mL at 25 °C

SMILES string

CC(O)CO.Cc1ccc(cc1N=C=O)N=C=O

InChI key

SKQGWWNTEKONHY-UHFFFAOYSA-N

Application

Idler rollers and adhesive-handling pads.

Features and Benefits

Lower viscosity than conventional polyurethane oligomers. Aromatic isocyanate is more reactive than aliphatic isocyanate. Aromatic isocyanates are less light stable than aliphatic isocyanates.

Physical form

Polyurethane prepolymer.


pictograms

Health hazardExclamation mark

signalword

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3

target_organs

Respiratory system

Storage Class

10 - Combustible liquids

wgk

WGK 3

flash_point_f

235.4 °F - closed cup

flash_point_c

113 °C - closed cup



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[Excretory insufficiency of the pancreas after occlusion of the ductal system with glue].
V S Zemskov et al.
Vestnik khirurgii imeni I. I. Grekova, 138(3), 73-74 (1987-03-01)
E A Stepanov et al.
Grudnaia i serdechno-sosudistaia khirurgiia, (1)(1), 52-55 (1990-01-01)
The authors discuss experience in 168 operations for extirpation and segmental resection of affected bronchi in children with bronchiectases. To prevent recanalization of the bronchus after its segmental resection and to prevent the formation of an abscess in the isolated
[Plombage of pathological pleural cavities].
V Ia Dzhugostran
Grudnaia khirurgiia (Moscow, Russia), (5)(5), 58-60 (1987-09-01)



Global Trade Item Number

SKUGTIN
433497-250ML04061837797804