Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
60 words
A skin-compatible, hydrophilic adhesive composition comprising: 25 to 50 weight percent polyvinyl pyrrolidone having a weight average molecular weight of at least about 100000; 2 to 5 weight percent polyvinyl alcohol; 5 to 41 weight percent polar plasticizer or humectant; 3 to 50 weight percent water: and about 0 to 50 weight percent of a further ionic or nonionic species.
Claim 2
Dependent Claim
60 words
A skin-compatible, hydrophilic adhesive composition comprising: 25 to 50 weight percent polyvinyl pyrrolidone having a weight average molecular weight of at least about 100000; 2 to 5 weight percent polyvinyl alcohol; 5 to 41 weight percent polar plasticizer or humectant; 3 to 50 weight percent water: and about 0 to 50 weight percent of a further ionic or nonionic species.
Claim 3
Dependent Claim
19 words
A composition as claimed in claim 1 wherein there is from about 30 to 40 weight percent polyvinyl pyrrolidone.
Claim 4
Dependent Claim
22 words
A composition as claimed in either of claims 1 and 2 wherein there is about 3 to 4 weight percent polyvinyl alcohol.
Claim 5
Dependent Claim
30 words
A composition as claimed in any one of claims 1 to 3 wherein the polyvinyl pyrrolidone has a weight average molecular weight in the range of about 100,000 to 600,000.
Claim 6
Dependent Claim
30 words
A composition as claimed in any one of claims 1 to 4 wherein the polyvinyl pyrrolidone has a weight average molecular weight in the range of about 300,000 to 400,000.
Claim 7
Dependent Claim
30 words
A composition as claimed in any one of claims 1 to 5 wherein the polyvinyl alcohol has a weight average molecular weight in the range of about 150,000 to 300,000.
Claim 8
Dependent Claim
30 words
A composition as claimed in any one of claims 1 to 6 wherein the polyvinyl alcohol has a weight average molecular weight in the range of about 170,000 to 220,000.
Claim 9
Dependent Claim
26 words
A composition as claimed in any one of claims 1 to 7 wherein the polar plasticizer comprises a material selected from glycerol, sorbitol, and poly(ethylene) glycol.
Claim 10
Dependent Claim
25 words
A composition as claimed in any one of claims 1 to 8 further containing from about 0 to about 22 weight percent of an additive.
Claim 11
Dependent Claim
55 words
A composition as claimed in claim 9 where said additive is selected from the group consisting of hydroxy propyl methyl cellulose, carboxy methyl cellulose, cellulose, hydroxy propyl quar, dextran, silica, poly(AMPS) and salts thereof, polyacrylic acid and salts thereof, polystyrene sulfonic acid and salts thereof, karaya gum, xanthan gum, quar gum and locust bean gum.