Polyurethanes Emission Control – EBook

Emissions of volatile organic compounds (VOC) from polyurethane systems and materials can contribute to safety, health and environmental issues and are subject to ever more stringent laws and regulations.

This report reviews the different strategies and technologies to reduce or eliminate emissions from polyurethane systems as disclosed in the recent patent literature.
The following groups of compounds are discussed:

  • Monomeric isocyanates
  • Aldehydes
  • Amines
  • Silicones
  • Antioxidants
  • Flame retardants
  • Cyclic oligomers
  • “Odours”

Order the report HERE  or download a SINGLE READER license from my shop HERE.
Contact me for other license agreements.

Calixarene-Based Self-Healing Polyurethane Coatings

Patent Title: CALIXARENE-TYPE PHOTOCURABLE POLYURETHANE RESIN AND SELF-REPAIRING COATING PREPARED THEREFROM

 Number/Link: WO2018/205208  (Chinese)

Applicant/Assignee:  Jiangnan Univ.

Publication date: 15 November 2018

Gist”: A coumarine-containing prepolymer is reacted with calixarene

Why it is interesting: UV-curable and self-healing polyurethanes containing coumarine groups have been discussed before in this blog. In the current invention, an isocyanate-ended prepolymer is partially capped with coumarine groups.  The remaing NCO groups are then reacted with a calixarene to form a core-shell type material that can be used in UV curable coatings with improved hardness and self-healing characteristics.

Calixarene-based polyurethane according to the invention

Free Download: Polyurethane Science Scan Nr.14 – August & September 2018

You can now download the 14th issue of my PU Science review for FREE from my webshop at http://sellfy.com/GeertBleys.

frontpage14