US5041287A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sprayable composition using acetone solvent
Assignee: DRIGGERS TERRY L
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Filing: 1990-02-13
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Granted: 1991-08-20
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Expires: 2010-02-13
Abstract
Abstract A composition for forming a coating comprising polyvinylidene difluoride and an aqueous emulsion of acrylates, methacrylates, an unsaturated carboxylic acid and/or acrylamide and a solvent having a low boiling point. The composition can be used to form a bandage or glove in situ.
Inventors
- 👤 Terry L. Driggers
- 👤 Peter Holemans
- 👤 W. Novis Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:43
CPC Classifications
A; A61; A61L; A61L26/00; A61L26/0095; A61L26/0009; A61L26/0052; A61B; A61B42/00; A41; A41D; A41D19/00; A41D19/0055
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
125 words
A sprayable composition for forming a smooth non-toxic flexible, non-notching polymeric coating on humans and animals which comprises: (a) about 50 to 90% by weight of solids selected from the group consisting of polyvinylidene difluoride and the copolymers thereof, (b) about 10 to 45% by weight of solids of a polymer of monomers selected from the group consisting of a lower alkylacrylate, a lower alkyl methacrylate, a hydroxy lower alkylacrylate, a hydroxy lower alkylacrylate, an alpha beta unsaturated carboxylic acid having an acid number of about 20 to 150, acrylamide, an N-lower alkyl acrylamide and the copolymers thereof, and acetone in a sufficient amount to completely dissolve all components and to practically and rapidly form a coating upon evaporation of said acetone at ambient temperatures.
Claim 2
Dependent Claim
125 words
A sprayable composition for forming a smooth non-toxic flexible, non-notching polymeric coating on humans and animals which comprises: (a) about 50 to 90% by weight of solids selected from the group consisting of polyvinylidene difluoride and the copolymers thereof, (b) about 10 to 45% by weight of solids of a polymer of monomers selected from the group consisting of a lower alkylacrylate, a lower alkyl methacrylate, a hydroxy lower alkylacrylate, a hydroxy lower alkylacrylate, an alpha beta unsaturated carboxylic acid having an acid number of about 20 to 150, acrylamide, an N-lower alkyl acrylamide and the copolymers thereof, and acetone in a sufficient amount to completely dissolve all components and to practically and rapidly form a coating upon evaporation of said acetone at ambient temperatures.
Claim 3
Dependent Claim
7 words
The composition of claim 1 including water.
Claim 4
Dependent Claim
33 words
The composition of claim 1 comprising about 75 to 90% by weight of polyvinylidene difluoride and 10 to 25% by weight of polymers of methyl methacrylate, methyl methacrylate copolymer, methacrylate and acrylic acid.
Claim 5
Dependent Claim
10 words
The composition of claim 3 including a polyvinylidene difluoride copolymer.
Claim 6
Dependent Claim
8 words
The composition of claim 1 including a plasticizer.
Claim 7
Dependent Claim
13 words
The composition of claim 1 comprising about 10 to 30% by weight solids.
Claim 8
Dependent Claim
8 words
The composition of claim 1 in aerosol form.
Claim 9
Dependent Claim
8 words
The composition of claim 1 including a medicament.
Claim 10
Dependent Claim
11 words
The composition of claim 1 wherein said solvent is a disinfectant.
Claim 11
Dependent Claim
14 words
A glove formed in situ on a human from the composition of claim 1.
Claim 12
Dependent Claim
11 words
A glove formed in situ on a human from claim 2.
Claim 13
Dependent Claim
12 words
A coating formed on a mammal from the composition of claim 1.
Claim 14
Dependent Claim
12 words
A coating formed on a mammal from the composition of claim 2.
Claim 15
Dependent Claim
12 words
A coating formed on a mammal from the composition of claim 7.
Claim 16
Dependent Claim
123 words
A sprayable composition for forming a non-toxic flexible non-notching coating on a mammal comprises: (a) about 50 to 90% by weight of solids of a polymer selected from the group consisting of polyvinylidene difluoride and the copolymers thereof (b) about 10 to 45% by weight of polymer solids of an alpha, beta unsaturated carboxylic acid having an acid number of about 20 to 150, and (c) a polymer from a monomer selected from the group consisting of lower alkylacrylate, a lower alkyl methacrylate, acrylamide, an N-lower alkyl acrylamide and the copolymers thereof, and acetone in a sufficient amount to completely dissolve all components and and to practically and rapidly form a coating on a mammal upon evaporation of said acetone at ambient temperatures.
Claim 17
Dependent Claim
123 words
A sprayable composition for forming a non-toxic flexible non-notching coating on a mammal comprises: (a) about 50 to 90% by weight of solids of a polymer selected from the group consisting of polyvinylidene difluoride and the copolymers thereof (b) about 10 to 45% by weight of polymer solids of an alpha, beta unsaturated carboxylic acid having an acid number of about 20 to 150, and (c) a polymer from a monomer selected from the group consisting of lower alkylacrylate, a lower alkyl methacrylate, acrylamide, an N-lower alkyl acrylamide and the copolymers thereof, and acetone in a sufficient amount to completely dissolve all components and and to practically and rapidly form a coating on a mammal upon evaporation of said acetone at ambient temperatures.
Claim 18
Dependent Claim
125 words
A process for preparing a sprayable composition which can be used to provide a non-toxic non-notching polymeric coating on the skin of a mammal in situ comprising heating about 50 to 90% by weight of solids of a member selected from the group consisting of polyvinylidene difluoride and the copolymers thereof, and an aqueous dispersion of about 10 to 45% by weight of solids of a polymer of monomers selected from the group consisting of a lower alkylacrylate, a lower alkyl methacrylate, an alpha beta unsaturated carboxylic having an acid number of about 20 to 150, acrylamide, N-lower alkyl acrylamide and the copolymers thereof, with acetone in a sufficient amount to practically and rapidly form a coating in situ on said mammal at ambient temperatures.
Claim 19
Dependent Claim
125 words
A process for preparing a sprayable composition which can be used to provide a non-toxic non-notching polymeric coating on the skin of a mammal in situ comprising heating about 50 to 90% by weight of solids of a member selected from the group consisting of polyvinylidene difluoride and the copolymers thereof, and an aqueous dispersion of about 10 to 45% by weight of solids of a polymer of monomers selected from the group consisting of a lower alkylacrylate, a lower alkyl methacrylate, an alpha beta unsaturated carboxylic having an acid number of about 20 to 150, acrylamide, N-lower alkyl acrylamide and the copolymers thereof, with acetone in a sufficient amount to practically and rapidly form a coating in situ on said mammal at ambient temperatures.
Claim 20
Dependent Claim
16 words
The process of claim 16, wherein said mixture is heated to a temperature about 50° C.
Claim 21
Dependent Claim
9 words
The process of claim 16 including a plasticizing agent.
Claim 22
Dependent Claim
18 words
The process of claim 16 wherein said composition comprises about 10 to 30% by weight of polymer solids.
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) | 1994-08-19 | 1995-02-18 | 1995-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-19 | 1999-02-18 | 1999-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-19 | 2003-02-18 | 2003-08-20 | $7700.00 | Window Closed / Lapsed |