Newsgroup sci.polymers 8727

Directory

For my work as a stagair at WAVIN, I am putting together a list with PVC
websites. But through search engines I can hardly find anything. 
So if you know a website which contains information on PVC and PE pipes,
fittings or anything on sewage and draining please send it to me at
rvdvlist@DDS.NL
Thanks a lot.
René van der Vlist 
Holland

To remove silicone sealant there is a proprietary product here in the 
UK called "Silstrip". Its made and sold by a company called 
Penn-White  tel 44 1260 279631 fax\44 1260 278263. Its non toxic and 
non corrosive and can be washed away with water after it has digested 
the silicone. It ain't cheap but the alternative is a cocktail of 
chlorinated solvents. I think they do a thixotropic paste which can be 
painted on. 
I'm sure they can send you some but if you get stuck let me 
know.
end of commercial.
Mike Stables    EMail mike@urofoam.demon.co.uk   
Manchester area 
UK--
-----------------------------------------------------------------------

Do you think it's possible to use a film of Polipropilene and EVOH for a flexible bottle of 
water, good to be ricycled?
I am a student of the Politecnico di Milano Industrial Design University, and I need your 
help for a research!
Thank You
Luca

Hi,
We are looking to have a polymerurethane synthesized on a small scale.
About 20 lbs. Does anyone know of any company which makes polymers on
demand? The synthesis is a regular 2 step one, the difference is that we
will specify the monomers.
Thanx in advance,
Shalini
st28@acme.gatech.edu
-- 
Shalini Thadani
st28@prism.gatech.edu

Bonjour a tous,
Je recherche des paradoxes scientifiques ! Je m'explique : la science
permet souvent d'etablir des resultats qui defient completement le sens
physique voire le bon sens commun. Par exemple, quel non scientifique
irait s'imaginer qu'un avion est plus petit en vol qu'au sol ?
Par consequent, quel que soit votre domaine, si vous connaissez de pres
ou de loin, des "phenomenes", quels qu'ils soient, qui peuvent paraitre
surprenants au commun des mortels, je vous remercie de me les decrire.
Je recherche d'autre part des pieds-de-nez scientifiques, du type de la
demonstration mathematique (truquee heureusement) de 2=1.
N'hesitez pas a m'envoyer vos suggestions, tout m'interesse ...
Merci d'avance.

Where can I get some polymethylene?
thanks in advance,
Jaya
p.s.
I don't mean polyethylene - I mean a CH2CH2 repeat unit that
looks suspiciously like polyethylene but is called polymethylene
because there is no branching.

Is salt ever used as a disposable core for injection molded  parts?
If so, who does this work?
Pat - Confused Old Engineer Guru at SKONK WORKS

Hi Rene,
I have a "web site" (sort of) at:   
http://www.plasticsnet.com/mbr/skipna19
In it I have linked several polymer sites, including especially PVC where 
ever I could find one. Since my main technical interest is also PVC, I'd 
appreciate knowing of any other web sites that relate to extrusion, pipe, 
profile, sheet, compounding, etc. In fact, Ihope you will let me know your 
new web location, and I will gladly add it to my list of links.
Years ago (mid 1970's) I had the pleasure of working with Mr. Stoffelsma 
at Wavin's Hardenberg location----back in my Milacron days. If he is still 
active, and you ever see him, please pass along my best wishes!
Hope to hear from you, Rene.
Regards, Skip

Dear Forum Member
I am looking for a congealant for "Latex dipping", from discussions I am
aware that very often calcium compounds are used to achieve this
task, have you got any more specific information ?
Your comments are always welcome. Thank You.
Alberto

We are looking for some to make our insoles/arch support 
if you can or know someone who can please e mail me  Thanks, George
our site: http://www.charleston.net/com/footstore/
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When people talk about polymer molecular weight (e.g. in Aldrich 
catalog), what unit do they imply (amu?)?
Thank you for your reply.

Hi there,
I am looking for the address, phone or fax number of a polymer company
called Scientific Polymer Products Inc. (Ontario, N.Y.).
Thanks for any help,
Markus

jack zolty wrote:
> 
> Does any one know of any polymers that would react kineticaly to a
> physical or electrical stimulus.
> Please reply to jzolty@portal.ca
Mohsen Shahinoor of University of New Mexico at Albuquerque looks at
this for muscle substitution and other application you don't want to
experience yourself (PVA, polyacrylic acid, polyacrylamid,or their
copolymers: US patents 5,389,222 &5,250,167)
Check USP5,336,057 (T.Fukuda) as well.
All this started with Kuhn's work e.g. Nature 1950, Vol.165 ,p.514.
Tanaka followed: Science 1982, Vol.218,p.467
I hope that keeps you busy for a while...
Henning
-- 
Dr. Henning Molsen 
Sharp Laboratories of Europe Ltd
Edmund Halley Road					
Oxford Science Park					
Oxford OX4 4GA
Great Britain
Telephone: (+44) (0)1865 747711
Facsimile:   (+44) (0)1865 774436