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Patent US4738848A successfully refreshed from Google Patents.
US4738848A
Expired / Lapsed
US
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Anti-inflammatory analgesic adhesive preparation
Assignee: Nitto Denko Corp
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Filing: 1986-06-04
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Granted: 1988-04-19
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Expires: 2006-06-04
Abstract
Abstract An anti-inflammatory analgesic adhesive preparation is disclosed, comprising a flexible support having laminated thereon a pressure-sensitive adhesive material layer which contains Diclofenac Sodium and an organic acid such as citric acid. This adhesive preparation has excellent percutaneous absorption properties.
Inventors
- 👤 Yuichi Yoshida
- 👤 Yoshihisa Nakano
- 👤 Tetsuo Horiuchi
- 👤 Toshinobu Tsuda
- 👤 Mitsuru Tamada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:47
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/70; A61K9/7023; A61K9/703; A61K9/7038; A61K9/7046; A61K9/7053; A61K9/7061; A61K31/00; A61K31/185; A61K31/19; A61K31/195; A61K47/00; A61K47/06; A61K47/08; A61K47/12; A61K9/0012; A61K9/0014
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
51 words
An anti-inflammatory analgesic adhesive preparation comprising a flexible support having laminated thereon a pressure-sensitive adhesive material layer which contains diclofenac sodium and a pharmaceutically acceptable carboxylic acid, wherein the amount of the pharmaceutically acceptable carboxylic acid is at least 5 parts by weight per 100 parts by weight of diclofenac sodium.
Claim 2
Dependent Claim
51 words
An anti-inflammatory analgesic adhesive preparation comprising a flexible support having laminated thereon a pressure-sensitive adhesive material layer which contains diclofenac sodium and a pharmaceutically acceptable carboxylic acid, wherein the amount of the pharmaceutically acceptable carboxylic acid is at least 5 parts by weight per 100 parts by weight of diclofenac sodium.
Claim 3
Dependent Claim
32 words
The preparation as in claim 1, wherein the carboxylic acid is selected from the group consisting of citric acid, succinic acid, lactic acid, maleic acid, fumaric acid, salicylic acid and acetic acid.
Claim 4
Dependent Claim
13 words
The preparation as in claim 2, wherein the carboxylic acid is citric acid.
Claim 5
Dependent Claim
28 words
The preparation as in claim 1, wherein the amount of the organic acid is 10 to 40 parts by weight per 100 parts by weight of diclofenac sodium.
Claim 6
Dependent Claim
27 words
The preparation as in claim 1, wherein the amount of diclofenac sodium is 1 to 40% by weight based on the weight of the pressure-sensitive adhesive material.
Claim 7
Dependent Claim
27 words
The preparation as in claim 5, wherein the amount of diclofenac sodium is 5 to 30% by weight based on the weight of the pressure-sensitive adhesive material.
Claim 8
Dependent Claim
19 words
The preparation as in claim 1, wherein the amount of diclofenac sodium is 20 to 1,600 μg/cm 2 .
Claim 9
Dependent Claim
19 words
The preparation as in claim 7, wherein the amount of diclofenac sodium is 100 to 1,200 μg/cm 2 .
Claim 10
Dependent Claim
17 words
The preparation as in claim 1, wherein the pressure-sensitive adhesive material is an acrylic pressure-sensitive adhesive material.
Claim 11
Dependent Claim
39 words
The preparation as in claim 9, wherein the acrylic pressure-sensitive adhesive material is a copolymer of an alkyl ester of (meth)acrylic acid, an alkyl ester of (meth)acrylic acid containing an ether bond in the molecule, and other copolymerizable monomer.
Claim 12
Dependent Claim
23 words
The preparation as in claim 10, wherein the acrylic pressure-sensitive adhesive material is a copolymer of 2-ethylhexyl acrylate, 2-methoxyethyl acrylate and vinyl acetate.
Claim 13
Dependent Claim
39 words
The preparation as in claim 10, wherein the proportion of the alkyl ester of (meth)acrylic acid/the alkyl ester of (meth)acrylic acid containing an ether bond in the molecule/the other copolymerizable monomer is 40 to 80/95 to 10/1 to 40.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-04-19 | 1991-10-19 | 1992-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-19 | 1995-10-19 | 1996-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-19 | 1999-10-19 | 2000-04-19 | $7700.00 | Window Closed / Lapsed |