Addition polyimides with enhanced processability

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

528125, 528126, 528128, 528172, 528173, 528174, 528176, 528188, 528220, 528229, 528350, 528351, 524600, C08C 7310, C08C 6926

Patent

active

053229240

ABSTRACT:
Addition polyimide resins having improved thermo-oxidative stability and enhanced processability are prepared by the reaction of a mixture of monomers comprising a non-planar polyphenyl diamine (a), a diester of tetracarboxylic acid or the corresponding dianhydride (b) and an end-capping agent (c), or a diamine (d), a non-planar polyphenyl diester or dianhydride of a tetracarboxylic acid (e) and an end-capping agent (c).

REFERENCES:
patent: 3745149 (1973-07-01), Serafini et al.
patent: 4433132 (1984-02-01), Rogers et al.
patent: 4560742 (1985-12-01), Pater
patent: 4868270 (1989-09-01), Lubowitz et al.
patent: 5071997 (1991-12-01), Harris
patent: 5091505 (1992-02-01), Serafini et al.
patent: 5149772 (1992-09-01), Serafini et al.
Harris, F. W. et al., "Synthesis and Characterization of Polyimides Based on 2,2'-Bis(Trifluoromethyl)-4,4'-Diaminobiphenyl", Polymer Preprints, vol. 31, No. 1, (1990), p. 342.
Vannucci, R. D. et al., "PMR Polyimides with Improved High Temperature Performance." NASA Technical Memorandum (1976).
Vannucci, R. D. et al., "700.degree. F. Properties of Autoclave Cured PMR-II Composites." NASA Technical Memorandum (1988).
Serafini, T. T. et al., "Second Generation PMR Polyimides", NASA Technical Memorandum (1976).
Vannucci, R. D., "PMR Polyimide Compositions for Improved Performance at 371.degree. C.", NASA Technical Memorandum (1987).
Serafini, T. T. et al., "Lower-Curing-Temperature PMR Polyimides." NASA Technical Memorandum (1981).

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

Addition polyimides with enhanced processability does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Addition polyimides with enhanced processability, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Addition polyimides with enhanced processability will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2221557

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