Process for the preparation of amphiphilic...

Details Process for the preparation of amphiphilic... Process for the preparation of amphiphilic...

2008-09-16

2010-11-23

Nutter, Nathan M (Department: 1796)

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S326900, C525S350000, C525S09200D

Reexamination Certificate

active

07838600

ABSTRACT:
The instant invention provides a two-step polymerization process for preparing amphiphilic poly(N-vinyl-2-pyrrolidone), (PVP)-block-polyester copolymers and other diblock and triblock copolymers consisting of PVP as one block. The block copolymers of the invention can be used as vehicles for drug delivery.

REFERENCES:
patent: 5112899 (1992-05-01), Yamaya et al.
patent: 6506836 (2003-01-01), Bremser et al.
patent: 6756449 (2004-06-01), Benz et al.
patent: 7018655 (2006-03-01), Lele et al.
patent: 2003/0157170 (2003-08-01), Liggins et al.

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