Polyamide-imide polymers having 12-F fluorine-containing linking

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

528172, 528173, 528179, 528185, 528188, 528189, 528351, 528352, 528353, C08G 6926, C08G 6928

Patent

active

049636472

ABSTRACT:
The present invention provides novel heat stable polyamide-imide polymers having excellent flow properties which render them more readily processible into fibers, films, sheets and other molded articles. The polymers are prepared by forming the polycondensation product of one or more aromatic diamines and one or more trifunctional acid anhydride monomers, wherein at least one of said diamine monomers is a 12F-Diamine or 12F-Oxydiamine containing at least two CF.sub.3 ##STR1## R groups linking two aromatic moieties, wherein R is CF.sub.3 or phenyl. In addition to improved flow properties, the polyamide-imide polymers of this invention also exhibit improved solubility properties in most organic solvents, improved resistance to attack by chlorinated solvents such as trichloroethylene as compared with polyimides, improved hydrophobic properties as well as excellent thermal properties including resistance to thermooxidative degredation.

REFERENCES:
patent: 3347828 (1967-10-01), Stephens et al.
patent: 3494890 (1971-03-01), Morello
patent: 3661832 (1972-05-01), Stephens
patent: 3817921 (1974-06-01), Brode et al.
patent: 3920612 (1975-11-01), Stephens
patent: 4448925 (1984-05-01), Hanson
patent: 4575924 (1986-03-01), Reed et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Polyamide-imide polymers having 12-F fluorine-containing linking does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polyamide-imide polymers having 12-F fluorine-containing linking, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyamide-imide polymers having 12-F fluorine-containing linking will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-850541

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.