Biguanide composition with low terminal amine

Details Biguanide composition with low terminal amine Biguanide composition with low terminal amine

2011-03-01

2011-03-01

Del Cotto, Gregory R (Department: 1761)

Cleaning compositions for solid surfaces, auxiliary compositions

Cleaning compositions or processes of preparing

For cleaning a specific substrate or removing a specific...

C510S383000, C510S384000, C510S499000, C510S504000, C424S078040

Reexamination Certificate

active

07897553

ABSTRACT:
A polymeric biguanide composition comprising less than 18 mol % of terminal amine groups as measured by13C NMR. The polymeric biguanide composition also is characterized by a relative increase in the molar concentration of terminal guanidine groups or terminal cyanoguanidino groups. The invention is also directed to ophthalmic compositions comprising the polymeric biguanide compositions. The polymeric biguanide compositions can be used as an antimicrobial component in an ophthalmic lens care solution, or as a preservative to in a pharmaceutical composition or other health care product.

REFERENCES:
patent: 3428576 (1969-02-01), Dickinson et al.
patent: 4758595 (1988-07-01), Ogunbiyi et al.
patent: 5965088 (1999-10-01), Lever
patent: 6121327 (2000-09-01), Tsuzuki et al.
patent: 6143799 (2000-11-01), Chowhan et al.
patent: 2003/0032768 (2003-02-01), Stockel
patent: 2004/0127372 (2004-07-01), Ketelson et al.
patent: 701821 (1996-03-01), None
patent: 788797 (1997-09-01), None
patent: 1434040 (1976-04-01), None
patent: WO 98/20738 (1998-05-01), None
International Search Report and Written Opinion dated Apr. 24, 2008.

Affiliated with

Also associated with

Rating

Biguanide composition with low terminal amine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Biguanide composition with low terminal amine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Biguanide composition with low terminal amine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2754807