Before working with this product, you must read and become familiar with the available information on its risks, proper use, and handling. Information is available in several forms, e.g., in particular in the currently valid safety data sheets and product labels. For further information contact your Covestro representative.
Product description
Baymedix MR622 is a linear aliphatic polycarbonate diol with terminal hydroxyl groups and an average molecular weight of approximately 2,000 g/mol.
Form supplied
At room temperature the product is a solid, white to light yellow substance. In a molten state (at temperatures above 55°C), it is clear liquid.
Specification
| Property | Test Condition | Value | Unit | Standard |
|---|---|---|---|---|
| Hydroxyl content | 50,3 - 63,7 | mg KOH/g | ||
| Acid number | ≤ 0,2 | mg KOH/g | ||
| Viscosity | 75° C | 2,050 ± 750 | mPa∙s | |
| Color value | (Hazen) | ≤ 150 |
Typical Values
| Property | Test Condition | Value | Unit | Standard |
|---|---|---|---|---|
| Water content | (applies only to the solidified product in drums and to tanker deliveries) | 0,05 | % by weight | |
| Density | 20° C | approx. 1,3 | g/cm3 | |
| Density | 70° C | approx. 1,08 | g/cm3 | |
| Density | 125° C | approx. 1,04 | g/cm3 | |
| Solidification range | 39 - 52 | °C |
Storage
Baymedix MR622 should be stored in tightly sealed original containers and protected from moisture, heat, and foreign materials. Recommended storage temperature is 0º-30ºC. General information: Baymedix MR622 is hygroscopic. Before use, the product should be heated to approx. 60 °C and homogenized by stirring.
Storage time
Baymedix MR622 has a shelf life of six months from date of shipment, provided the material is stored in sealed original containers at the recommended storage temperature.
Health and Safety Information
Disclaimer
General
The manner in which you use our products, technical assistance and information (whether verbal, written or by way of production evaluations), including any suggested formulations and recommendations, are beyond our control. Therefore, it is imperative that you test our products to determine suitability for your processing and intended uses. Your analysis must at least include testing to determine suitability from a technical, health, safety, and environmental and regulatory standpoint. Such testing has not necessarily been done by Covestro, and Covestro has not obtained any approvals or licenses for a particular use or application of the product.
Unless we otherwise agree in writing, all products are sold strictly pursuant to the terms of our standard conditions of sale which are available upon request.
All information and including technical assistance is given without warranty or guarantee and is subject to change without notice. It is expressly understood and agreed by you that you assume and hereby expressly release indemnify us and hold us harmless from all liability, in tort, contract or otherwise, incurred in connection with the use of our products, technical assistance, and information. Any statement or recommendation not contained herein is unauthorized and shall not bind us. Nothing herein shall be construed as a recommendation to use any product in conflict with any claim of any patent relative to any material or its use. No license is implied or in fact granted under the claims of any patent.
Medical Grades
All products for medical applications/Baymedix® products offered by Covestro are supplied under contract containing detailed product specifications and therefore the execution of an individual written supply contract is mandatory prior to any use of a medical applications/Baymedix® product, including but not limited to production of medical devices or medicinal products.
For more information, please refer to the Guidance on the use of Covestro products in Medical Applications:
Sample
Any samples provided by Covestro are for testing purposes only and not for commercial use.
Typical value
These values are typical values only. Unless explicitly agreed in written form, they do not constitute a binding material specification or warranted values
Contact
Please use our contact form or contact us directly by sending an e-mail to technical-datasheets@cx.covestro.com .
