초록 ▼

A controlled release treatment composition and method of use are disclosed. The composition includes a bioadhesive and an effective amount of a treating agent. The bioadhesive is a water-swellable, but water-insoluble, fibrous, cross-linked carboxy-functional polymer containing (a) a plurality of re

A controlled release treatment composition and method of use are disclosed. The composition includes a bioadhesive and an effective amount of a treating agent. The bioadhesive is a water-swellable, but water-insoluble, fibrous, cross-linked carboxy-functional polymer containing (a) a plurality of repeating units of which at least about 80 percent contain at least one carboxyl functionality, and (b) about 0.05 to about 1.5 percent cross-linking agent substantially free from polyalkenyl polyether.

대표청구항 ▼

A controlled release treatment composition including a bioadhesive and an effective amount of a treating agent, said bioadhesive comprising a water-swellable, but water-insoluble, fibrous, cross-linked carboxy-functional polymer, said polymer containing (a) a plurality of repeating units of which at

A controlled release treatment composition including a bioadhesive and an effective amount of a treating agent, said bioadhesive comprising a water-swellable, but water-insoluble, fibrous, cross-linked carboxy-functional polymer, said polymer containing (a) a plurality of repeating units of which at least about 80 percent contain at least one carboxyl functionality, and (b) about 0.05 to about 1.5 percent cross-linking agent substantially free from polyalkenyl polyether, said percentages being based upon the weights of unpolymerized repeating unit and cross-linking agent, respectively. A laminate defining at least one surface portion on which a bioadhesive is disposed and containing medicinally inert matrices in layers, each of said layers defining a first surface and a second surface, said layer surfaces being in stacked relation with surfaces of adjacent layers being adhered together, at least one of said medicinally inert matrix layers containing an effective amount of a treating agent, and a surface of one of said layers defining said at least one surface portion on which a bioadhesive is disposed, said bioadhesive comprising a water- swellable, but water-insoluble, fibrous, cross-linked carboxy-functional polymer, said polymer containing (a) a plurality of repeating units of which at least about 80 percent contain at least one carboxyl functionality, and (b) about 0.05 to about 1.5 percent cross-linking agent substantially free from polyalkenyl polyether, said percentages being based upon the weights of unpolymerized repeating unit and cross-linking agent, respectively.