Bioabsorbable Thermoplastic Polyurethane


 Number/Link: WO2018/140912

Applicant/Assignee:  Lubrizol

Publication date: 2 august 2018

Gist”: TPU breaks down into non-toxic components

Why it is interesting: The invention is related to biodegradable TPU for medical use in vivo. The TPU is prepared from isocyanates, polyols and chain extenders that biodegrade into non-toxic products, e.g. hexane diisocyanate, butanediisocyanate, lysine diisocyanate, poly(ε-caprolactone), polyglycolide, dipropylene glycol, diethyleneglycol etc.  The TPUs are prepared at a hardblock content of 15-45% (pref).
I strongly doubt that this case is patentable because the same compositions are disclosed inanother Lubrizol application discussed before in this blog.


Lysine diisocyanate

Leave a comment

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

  • Pages

  • Categories

  • Enter your email address to follow this blog and receive notifications of new posts by email.

    Join 1,089 other subscribers
  • Follow Innovation in PU on Twitter

%d bloggers like this: