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433497

Sigma-Aldrich

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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250 ML
€83.80

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250 ML
€83.80

About This Item

CAS Number:
9057-91-4
MDL number:
MFCD00217728
UNSPSC Code:
12162002
PubChem Substance ID:
24867145
NACRES:
NA.23

€83.80

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form

viscous liquid

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

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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
GHS08,GHS07

Signal Word

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 Code

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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Certificates of Analysis (COA)

Lot/Batch Number
MKCX5274
MKCW0849
MKCW8473
MKCT2425
MKCR3490

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P P Salov et al.
Vestnik khirurgii imeni I. I. Grekova, 146(3), 71-72 (1991-03-01)
The authors have suggested the presence of reflux regulating the relationship between the urinary bladder and vesicoureteral segment which was called the vesico-osteal reflex (VOR). An original method of diagnostics of VOR with the help of profilometry was developed. A
[Clinico-morphological characteristics of chronic pancreatitis in pancreatic duct occlusion using KL-3 glue].
V S Zemskov et al.
Klinicheskaia khirurgiia, (11)(11), 3-5 (1986-01-01)
[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)
[Use of medical glues MK-6 and KL-3 in surgical endocrinology].
I V Komissarenko et al.
Klinicheskaia khirurgiia, (12)(12), 19-20 (1985-01-01)
I V Titarenko et al.
Vestnik khirurgii imeni I. I. Grekova, 152(3-4), 17-23 (1994-03-01)
Results of experimental investigations of using polymer compositions KL-3, including modifications with ionol ("Adgenol") and levamisol in 18 rabbits with injuries of the liver are presented. It has been established that 3 and 6 months after using the mentioned compositions
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Questions

1–2 of 2 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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