Process for fractionation/concentration to reduce the...

Details Process for fractionation/concentration to reduce the... Process for fractionation/concentration to reduce the...

2005-06-14

2005-06-14

Seidleck, James J. (Department: 1711)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Treating polymer containing material or treating a solid...

C528S491000, C528S493000, C528S494000, C528S497000, C528S500000, C528S503000

Reexamination Certificate

active

06906168

ABSTRACT:
Methods of reducing the amount of undesirable by-products in the production of polymers are disclosed. The resulting polyetherimides have lower polydispersivity and enhanced thermomechanical properties. In some embodiments, cyclic and low molecular weight linear oligomers are also obtained.

REFERENCES:
patent: 4217438 (1980-08-01), Brunelle et al.
patent: 4879419 (1989-11-01), Johannessen
patent: 5229482 (1993-07-01), Brunelle
patent: 5264536 (1993-11-01), Radosz
patent: 5830974 (1998-11-01), Schmidhauser et al.
patent: 5910559 (1999-06-01), Rahman et al.
patent: 6166137 (2000-12-01), Brown et al.
patent: 6235866 (2001-05-01), Khouri et al.
patent: 6417255 (2002-07-01), Penning et al.
patent: 6630568 (2003-10-01), Johnson et al.
PCT Search Report-Dec. 27, 2004.

Affiliated with

Also associated with

Rating

Process for fractionation/concentration to reduce the... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for fractionation/concentration to reduce the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for fractionation/concentration to reduce the... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3468530