Polymeric hydrogels

Details Polymeric hydrogels Polymeric hydrogels

2003-03-26

2004-03-16

Seidleck, James J. (Department: 1711)

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

Synthetic resins

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

C525S191000, C525S252000, C525S253000

Reexamination Certificate

active

06706817

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to hydrogels, and, more particularly, to polymeric hydrogels which are crosslinked polymeric esters or amides/imides, or both, of a polymeric anhydride or acid, or copolymers thereof, which are very swellable in water, and form thin, tacky layers on a substrate, and bioadhesive products thereof.
2. Description of the Prior Art
Hydrogels are polymeric materials which can swell appreciably in water. However, what is described as hydrogels can be viscous polymeric solutions without the swelling characteristic of a true hydrogel. Such hydrogels also are not tacky, a necessary property for making bioadhesive products. See U.S. Pat. Nos. 4,740,365; 4,990,551; 5,135,753; 5,336,501; and 5,846,214. Accordingly, it is desired to provide new and useful polymeric hydrogels having exceptional swelling properties in water, and which are tacky; and bioadhesive products of such hydrogels.

Affiliated with

Also associated with

Rating

Polymeric hydrogels does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3193639