US4663202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prevention of undesired adsorption on surfaces
Assignee: BTG International Ltd
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Filing: 1984-05-14
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Granted: 1987-05-05
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Expires: 2004-05-14
Abstract
Abstract A method of treating a surface to render the surface resistant to undesired adsorption from an aqueous environment, involving treating the surface with a solution containing a polymer mixture comprising (1) a polymer containing (a) reactive groups (A) capable of bonding with the surface to be treated and (b) hydrophobic groups (B); and (2) a polymer comprising (c) at least one hydrophilic polymeric chain (c) and (d) at least one hydrophobic group (D) in the presence of water. Compositions containing the polymer mixture may be used as mouthwashes to prevent or reduce tooth decay and prevent plaque formation. They may also be applied to various surfaces where prevention and/or reduction of colonization by microorganisms on the surfaces is desired.
Inventors
- 👤 Brian E. Causton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:22
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/16; C09D5/1656; C09D5/1662; A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/81; A61K8/8105; A61K8/8117; A61K8/8141; A61K8/8152; A61K8/84; A61K8/86; A61Q; A61Q11/00; C09D133/00; C09D133/04; C09D133/06
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
130 words
A method of treating a surface to render the surface resistant to undesired adsorption from an aqueous environment, which method comprises contacting the surface with a solution containing a polymer mixture comprising (1) a water-soluble polymer comprising a polymer backbone having thereon (a) reactive groups capable of bonding with the surface to be treated, and (b) hydrophobic groups each containing 7 to 20 carbon atoms; and (2) a water-soluble polymer comprising (c) at least one hydrophilic polymeric chain and (d) at least one hydrophobic group containing 7 to 20 carbon atoms; the molar ratio of hydrophobic groups (b) of polymer (1) to hydrophobic groups (d) of polymer (2) being between 1:0.9 and 1:1.5 and a proton acceptor capable of reducing or preventing hydrogen bond formation, in the presence of water.
Claim 2
Independent Claim
130 words
A method of treating a surface to render the surface resistant to undesired adsorption from an aqueous environment, which method comprises contacting the surface with a solution containing a polymer mixture comprising (1) a water-soluble polymer comprising a polymer backbone having thereon (a) reactive groups capable of bonding with the surface to be treated, and (b) hydrophobic groups each containing 7 to 20 carbon atoms; and (2) a water-soluble polymer comprising (c) at least one hydrophilic polymeric chain and (d) at least one hydrophobic group containing 7 to 20 carbon atoms; the molar ratio of hydrophobic groups (b) of polymer (1) to hydrophobic groups (d) of polymer (2) being between 1:0.9 and 1:1.5 and a proton acceptor capable of reducing or preventing hydrogen bond formation, in the presence of water.
Claim 3
Dependent Claim
21 words
A method according to claim 1, wherein polymers (1) and (2) are in solution in water when contacted with the surface.
Claim 4
Dependent Claim
31 words
A method according to claim 1, wherein the polymers (1) and (2) in solution in a volatile solvent are applied to the surface and the volatile solvent is allowed to evaporate.
Claim 5
Dependent Claim
28 words
A method according to claim 3, wherein the hydrophobic groups (b) of polymer (1) and the hydrophobic groups (d) of polymer (2) are caused to crosslink after application.
Claim 6
Independent Claim
34 words
A method according to any one of claims 1 to 4, wherein the surface is of mild steel and the reactive groups (a) of polymer (1) are carboxylic acid or carboxylic acid salt groups.
Claim 7
Dependent Claim
27 words
A method according to claim 5, wherein polymer (1) is a copolymer of acrylic acid and a C 7 to C 20 n-alkyl ester of methacrylic acid.
Claim 8
Independent Claim
32 words
A method according to any one of claims 1 to 4, wherein the surface is of stainless steel and the reactive groups (a) of polymer (1) are phosphate acid or salt groups.
Claim 9
Independent Claim
27 words
A method according to any one of claims 1 to 4, wherein polymer (2) is a polyoxyethylene derivative of a fatty acid partial ester of sorbitol anhydride.
Claim 10
Independent Claim
122 words
A method of treating teeth to render the teeth resistant to bacterial colonization, which method comprises contacting the teeth with an aqueous mouthwash containing, in solution, a polymer mixture comprising (1) a water-soluble polymer comprising a polymer backbone having thereon (a) reactive groups capable of bonding to the surface of teeth and (b) hydrophobic groups each containing 7 to 20 carbon atoms; and (2) a water-soluble polymer comprising (c) at least one hydrophilic polymeric chain and (d) at least one hydrophobic group containing 7 to 20 carbon atoms; the molar ratio of hydrophobic groups (b) of polymer (1) to hydrophobic groups (d) of polymer (2) being between 1:0.9 and 1:1.5 and a proton acceptor capable of reducing or preventing hydrogen bond formation.
Claim 11
Independent Claim
122 words
A method of treating teeth to render the teeth resistant to bacterial colonization, which method comprises contacting the teeth with an aqueous mouthwash containing, in solution, a polymer mixture comprising (1) a water-soluble polymer comprising a polymer backbone having thereon (a) reactive groups capable of bonding to the surface of teeth and (b) hydrophobic groups each containing 7 to 20 carbon atoms; and (2) a water-soluble polymer comprising (c) at least one hydrophilic polymeric chain and (d) at least one hydrophobic group containing 7 to 20 carbon atoms; the molar ratio of hydrophobic groups (b) of polymer (1) to hydrophobic groups (d) of polymer (2) being between 1:0.9 and 1:1.5 and a proton acceptor capable of reducing or preventing hydrogen bond formation.
Claim 12
Dependent Claim
22 words
A method according to claim 9, wherein the reactive groups (a) of polymer (1) are carboxylic acid or carboxylic acid salt groups.
Claim 13
Dependent Claim
29 words
A method according to claim 9 or 10, wherein polymer (1) is a copolymer of acrylic acid and a C 7 to C 20 n-alkyl ester of methacrylic acid.
Claim 14
Dependent Claim
30 words
A method according to claim 11, wherein polymer (1) is a copolymer of acrylic acid and C 13 n-alkyl ester of methacrylic acid containing 20-37% by weight of the ester.
Claim 15
Dependent Claim
22 words
A method according to claim 9, wherein polymer (2) is a polyoxyethylene derivative of a fatty acid partial ester of sorbitol anhydride.
Claim 16
Dependent Claim
28 words
A method according to claim 9, wherein the polymer mixture contains substantially equimolar amounts of hydrophobic groups (b) of polymer (1) and hydrophobic groups (d) of polymer (2).
Claim 17
Dependent Claim
112 words
A composition for use in the treatment of surfaces, which comprises, in solution, a polymer mixture comprising (1) a water-soluble polymer comprising a polymer backbone having thereon (a) reactive groups capable of bonding with a surface, and (b) hydrophobic groups each containing 7 to 20 carbon atoms; and (2) a water-soluble polymer comprising (c) at least one hydrophilic polymeric chain and (d) at least one hydrophobic group containing 7 to 20 carbon atoms; the molar ratio of hydrophobic groups (b) of polymer (1) to hydrophobic groups (d) of polymer (2) being between 1:0.9 and 1:1.5 and a proton acceptor capable of reducing or preventing hydrogen bond formation, in the presence of water.
Claim 18
Dependent Claim
112 words
A composition for use in the treatment of surfaces, which comprises, in solution, a polymer mixture comprising (1) a water-soluble polymer comprising a polymer backbone having thereon (a) reactive groups capable of bonding with a surface, and (b) hydrophobic groups each containing 7 to 20 carbon atoms; and (2) a water-soluble polymer comprising (c) at least one hydrophilic polymeric chain and (d) at least one hydrophobic group containing 7 to 20 carbon atoms; the molar ratio of hydrophobic groups (b) of polymer (1) to hydrophobic groups (d) of polymer (2) being between 1:0.9 and 1:1.5 and a proton acceptor capable of reducing or preventing hydrogen bond formation, in the presence of water.
Claim 19
Dependent Claim
16 words
A composition according to claim 15, wherein polymers (1) and (2) are in solution in water.
Claim 20
Dependent Claim
26 words
A composition according to claim 15, wherein it is in the form of a paint comprising polymers (1) and (2) in solution in a volatile solvent.
Claim 21
Dependent Claim
24 words
A composition according to claim 17, wherein the hydrophobic groups (b) of polymer (1) and the hydrohobic groups (d) of polymer (2) are crosslinkable.
Claim 22
Dependent Claim
27 words
A composition according to any one of claims 15 to 18, wherein the reactive groups (a) of polymer (1) are carboxylic acid or carboxylic acid salt groups.
Claim 23
Dependent Claim
27 words
A composition according to claim 19, wherein polymer (1) is a copolymer of acrylic acid and a C 7 to C 20 n-alkyl ester of methacrylic acid.
Claim 24
Dependent Claim
24 words
A composition according to any one of claims 15 to 18, wherein the reactive groups of polymer (1) are phosphate acid or salt groups.
Claim 25
Dependent Claim
29 words
A composition according to any one of claims 15 to 21 characterised in that polymer (2) is a polyoxyethylene derivative of a fatty acid partial ester of sorbitol anhydride.
Claim 26
Dependent Claim
108 words
An aqueous composition which is a mouthwash, which comprises, in aqueous solution, a polymer mixture comprising (1) a water-soluble polymer comprising a polymer backbone having thereon (a) reactive groups capable of bonding to the surface of teeth and (b) hydrophobic groups each containing 7 to 20 carbon atoms; and (2) a water-soluble polymer comprising (c) at least one hydrophilic polymeric chain and (d) at least one hydrophobic group containing 7 to 20 carbon atoms; the molar ratio of hydrophobic groups (b) of polymer (1) to hydrophobic groups (d) of polymer (2) being between 1:0.9 and 1:1.5 and a proton acceptor capable of reducing or preventing hydrogen bond formation.
Claim 27
Dependent Claim
108 words
An aqueous composition which is a mouthwash, which comprises, in aqueous solution, a polymer mixture comprising (1) a water-soluble polymer comprising a polymer backbone having thereon (a) reactive groups capable of bonding to the surface of teeth and (b) hydrophobic groups each containing 7 to 20 carbon atoms; and (2) a water-soluble polymer comprising (c) at least one hydrophilic polymeric chain and (d) at least one hydrophobic group containing 7 to 20 carbon atoms; the molar ratio of hydrophobic groups (b) of polymer (1) to hydrophobic groups (d) of polymer (2) being between 1:0.9 and 1:1.5 and a proton acceptor capable of reducing or preventing hydrogen bond formation.
Claim 28
Dependent Claim
33 words
A composition according to any one of claims 15 or 23, wherein the polymer mixture contains substantially equimolar amounts of hydrophobic groups (b) of polymer (1) and hydrophobic groups (d) of polymer (2).
Claim 29
Independent Claim
30 words
The method of any of claims 1, 9, 15 or 23, wherein said hydrophobic groups (b) are derived from monomers containing a chain of between 7 and 20 carbon atoms.
Claim 30
Independent Claim
30 words
The method of any of claims 1, 9, 15 or 23, wherein said hydrophobic groups (d) are derived from monomers containing a chain of between 7 and 20 carbon atoms.
Claim 31
Dependent Claim
110 words
A composition for use in the treatment of surface, which comprises a polymer mixture comprising (1) a water-soluble polymer comprising a polymer backbone having thereon (a) reactive groups capable of with the surface to be treated, and (b) hydrophobic groups, the reactive groups (a) and hydrophobic groups (b) being attached to different atoms of the backbone; (2) a water-soluble polymer comprising (c) at least one hydrophilic polymer chain and (d) at least one hydrophobic group; the molar molar ratio of hydrophobic groups (b) of polymer (1) to hydrophobic groups (d) of polymer (2) being between 1:0.9 and 1:1.5 and a proton acceptor capable of reducing or preventing hydrogen bond formation.
Claim 32
Dependent Claim
110 words
A composition for use in the treatment of surface, which comprises a polymer mixture comprising (1) a water-soluble polymer comprising a polymer backbone having thereon (a) reactive groups capable of with the surface to be treated, and (b) hydrophobic groups, the reactive groups (a) and hydrophobic groups (b) being attached to different atoms of the backbone; (2) a water-soluble polymer comprising (c) at least one hydrophilic polymer chain and (d) at least one hydrophobic group; the molar molar ratio of hydrophobic groups (b) of polymer (1) to hydrophobic groups (d) of polymer (2) being between 1:0.9 and 1:1.5 and a proton acceptor capable of reducing or preventing hydrogen bond formation.
Claim 33
Dependent Claim
79 words
An aqueous composition, which is a mouthwash and which comprises, in aqueous solution, a polymer mixture comprising (1) a water-soluble copolymer of acrylic acid and a C 7 to C 20 n-alkyl ester of methacrylic acid; and (2) a water-soluble polyoxyethylene derivative of a fatty acid partial ester of sorbitol anhydride; the copolymer (1) and polymer (2) containing hydrophobic groups in substantially equimolar amounts, and ethyl alcohol as a proton acceptor capable of reducing or preventing hydrogen bond formation.
Claim 34
Dependent Claim
79 words
An aqueous composition, which is a mouthwash and which comprises, in aqueous solution, a polymer mixture comprising (1) a water-soluble copolymer of acrylic acid and a C 7 to C 20 n-alkyl ester of methacrylic acid; and (2) a water-soluble polyoxyethylene derivative of a fatty acid partial ester of sorbitol anhydride; the copolymer (1) and polymer (2) containing hydrophobic groups in substantially equimolar amounts, and ethyl alcohol as a proton acceptor capable of reducing or preventing hydrogen bond formation.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-04 | 1990-11-03 | 1991-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-04 | 1994-11-03 | 1995-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-04 | 1998-11-03 | 1999-05-05 | $7700.00 | Window Closed / Lapsed |