INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Member Login

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips now!

Talk With Other Members
Be Notified Of Responses
To Your Posts
Keyword Search
One-Click Access To Your
Favorite Forums
Automated Signatures
On Your Posts
Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

LINK TO THIS FORUM!

Eng-Tips LinkedIn^® Group

Join our
LinkedIn^® Group!

Hook up with past and present colleagues and classmates quickly.

Partner With Us!

"Best Of Breed" Forums Add Stickiness To Your Site

(Download This Button Today!)

Feedback

"...I just want to say how much I value your site. I hope the good work keeps up there. It's really helped me..."

More...

Geography

Where in the world do Eng-Tips members come from?

Click Here To Find Out!

Eng-Tips Shirts!

Get your
Eng-Tips Forums
SWAG here!

Home > Forums > Engineering Forums by Industry > Plastics Engineering > Plastic resins engineering Forum

Polyurethane gel

Read More Threads Like This One

virteceng (Mechanical)

6 Aug 03 8:24

I am looking for a sticky polyurethane gel material which is
safe for skin contact. I have seen toys made of this material that when thrown at a window, will stick, then slide, then stick, etc. and look like they are crawling down the window.

Anybody know what that material is and a source? The only materials I've found so far do not pass biocompatibility screening (cytotoxicity), in fact they fail miserably.

Rogerio1 (Chemical)

6 Nov 03 8:21

Hello virteceng,

the problems with biocompatibility of PU usually come from the catalysts used (tin-organic or amines) and from the Isocyanates or manufacturing residues contained in them.
Try Air Products or Witco for questions relating to the catalysts and Bayer for the Isocyanates.
These companies might even give you a working formulation or a ready-made product.

Good Luck!
Roger

mohtogh (Chemical)

8 Nov 03 18:25

As I know that stuff are "thermo plastic poly olefines". I searched in patent office of USA and I found there are a couple of patent on this matter, some of them from China.

Hope this help

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!

Back To Forum

Back To Plastic resins engineering