Hydrophilic cross-linked polymeric membranes and sorbents

Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C210S651000, C210S500370, C210S500420, C210S502100, C210S663000, C210S263000, C210S198200, C095S045000, C095S052000

Reexamination Certificate

active

07622045

ABSTRACT:
Hydrophilic cross-linked polymeric membranes, when prepared according to the process of the present invention, are unique in character in as much as the steady state permeability of the membrane has been altered by blending and cross-linking polyalkyl amines and polyalcohols. To obtain desired results, the compositions must contain at least 10% polyalkyl amines, with preferred amounts of polyalkyl amines in the composition being in excess of 40%, with over 50% polyalkyl amine concentration by weight.

REFERENCES:
patent: 5039421 (1991-08-01), Linder et al.
patent: 5059327 (1991-10-01), Takegami
patent: 5127925 (1992-07-01), Kulprathipanja et al.
patent: 5271833 (1993-12-01), Funkenbusch et al.
patent: 5753008 (1998-05-01), Friesen et al.
patent: 6045697 (2000-04-01), Girot et al.
patent: 6523699 (2003-02-01), Akita et al.
patent: 6881364 (2005-04-01), Vane et al.
patent: 6946070 (2005-09-01), Hammen 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

Hydrophilic cross-linked polymeric membranes and sorbents does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydrophilic cross-linked polymeric membranes and sorbents, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydrophilic cross-linked polymeric membranes and sorbents will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4139702

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