Patent US5932299A successfully refreshed from Google Patents.
US5932299A
Expired / Lapsed
US
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Method for modifying the surface of an object
Assignee: KT Holdings LLC
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Filing: 1997-04-22
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Granted: 1999-08-03
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Expires: 2017-04-22
Abstract
Abstract The present invention relates to several novel compositions and methods employing infrared radiation, microwave radiation or high voltage polymerization for modifying the surfaces of materials to impart desired characteristics thereto. More particularly, the present invention relates to a method for modifying the surfaces of objects to increase the lubricity, hydrophilicity, hydrophobicity, or biofunctionality of the surface of the object.
Inventors
- 👤 Mohammad W. Katoot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:52
CPC Classifications
D; D06; D06M; D06M14/00; D06M14/18; D06M14/20; A; A61; A61L; A61L27/00; A61L27/28; A61L27/34; A61L29/00; A61L29/08; A61L29/085; A61L31/00; A61L31/08; A61L31/10; A61L33/00; A61L33/06; A61L33/062; B; B05; B05D; B05D7/00; D06M10/00; D06M10/001; D06M10/003; D06M10/02; D06M10/025; D06M10/04; D06M10/08; D06M10/10; D06M14/26; D06M16/00; D06M16/003; A61L2400/00; A61L2400/18; D06M2200/00; D06M2200/10; D06M2200/12; D06M2200/40
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
54 words
A method of modifying a surface of an object, comprising: coating the object with a micrograft initiator and a hydrophilic polymer, a hydrophobic polymer, or a biofunctional compound, or a combination of these; and, exposing the coated object to infrared radiation, microwave radiation or high voltage polymerization, thereby producing a graft to the surface.
Claim 2
Independent Claim
54 words
A method of modifying a surface of an object, comprising: coating the object with a micrograft initiator and a hydrophilic polymer, a hydrophobic polymer, or a biofunctional compound, or a combination of these; and, exposing the coated object to infrared radiation, microwave radiation or high voltage polymerization, thereby producing a graft to the surface.
Claim 3
Dependent Claim
24 words
The method of claim 1, wherein the object is selected from the group consisting of metals, woods, polymers, ceramics, plastics, fibers and composites thereof.
Claim 4
Dependent Claim
17 words
The method of claim 1, wherein the object is a medical device, surgical instrument or an implant.
Claim 5
Dependent Claim
11 words
The method of claim 1, wherein the object is a web.
Claim 6
Dependent Claim
53 words
The method of claim 1, wherein the surface is made from substances comprising fluorocarbon polymers, polyolefins, polyolefin/hydrocarbon polymers, polyvinyl chloride, polypropylene, polystyrene, silicone, polyacrylates, methacrylates, styrene-butadiene copolymers, ethylene propylene copolymers, styrene-ethylene/butadiene/styrene block copolymers, polycarbonates, fluorocarbon polymers, polyperfluoroethylenepropylene, polysiloxanes, polyurethanes, polyurethane polyester, polyether block copolymers, polyvinyl chloride, polyesters, polyethylene terephthalate, vinyl, or polycarbonate/polydimethylsiloxane copolymer.
Claim 7
Dependent Claim
50 words
The method of claim 1, wherein the biofunctional compound comprises a protein, receptor, enzyme, enzyme inhibitor, immunological molecule, hormone, neurotransmitter, peptide, lipid, phospholipid, nucleic acid, sugar, carbohydrate, glycoprotein, lectin, bacterium, virus, replication inhibitor, protease, antibiotic, antifungal, bacteriostatic compound, toxin, microbial, anti-microbial, growth factor, angiogenic factor, nutrient, phosphatidylcholine, anti-coagulent, or vitamin.
Claim 8
Dependent Claim
42 words
The method of claim 1, wherein the hydrophilic polymer comprises hydroxyethyl methacrylate, N-vinyl pyrrolidinone, carboxymethyl cellulose, acrylamide, polyethylene glycol, hydroxypropyl acrylamide, sulfopropyl acrylate, styrene sulfonic acid, potassium styrene sulfonic propyl acrylate, methacrylamide, acrylate, acrylic acid, methacrylic acid, hexa(hydroxypropylcarbamlymethyl)melamine, ethylhydroxyethyl cellulose, or protein.
Claim 9
Dependent Claim
22 words
The method of claim 1, wherein the hydrophobic polymer comprises polyolefin, isobutene, methacrylate, hydroxyethyl methacrylate, halogenated polymer, fluorinated polymer, or styrene polymers.
Claim 10
Dependent Claim
47 words
The method of claim 1, wherein the micrograft initiator comprises: a first solution of polyvinyl alcohol, ethylene glycol, and polyaniline dissolved in N-methyl pyrrolidinone; a second solution of copper perchlorate; and a third solution comprising a mixture of the second solution, the first solution, acid and peroxide.
Claim 11
Dependent Claim
14 words
The method of claim 9, wherein the second solution is copper perchlorate in methanol.
Claim 12
Dependent Claim
14 words
The method of claim 9, wherein the second solution is copper perchlorate in tetrahydrofuran.
Claim 13
Dependent Claim
15 words
The method of claim 9, wherein the second solution is copper perchlorate in isopropyl alcohol.
Claim 14
Dependent Claim
51 words
The method of claim 1, wherein the micrograft initiator comprises: a first solution of polyvinyl alcohol, acid, and polyaniline dissolved in N-methyl pyrrolidinone; a second solution of copper perchlorate in tetrahydrofuran, and ethylene glycol; and a third solution comprising a mixture of the second solution, the first solution, phenol and peroxide.
Claim 15
Dependent Claim
48 words
The method of claim 1, wherein the micrograft initiator comprises: a first solution of polyvinyl alcohol, and polyaniline dissolved in N-methyl pyrrolidinone; a second solution of copper perchlorate in isopropyl alcohol; and a third solution comprising a mixture of the second solution, the first solution, acid and peroxide.
Claim 16
Dependent Claim
51 words
The method of claim 1, wherein the micrograft initiator comprises: a first solution of polyvinyl alcohol, polyaniline dissolved in N-methyl pyrrolidinone, and acid; a second solution of copper perchlorate in isopropyl alcohol, and ethylene glycol; and a third solution comprising a mixture of the second solution, the first solution, and peroxide.
Claim 17
Dependent Claim
50 words
The method of claim 1, wherein the micrograft initiator comprises: a first solution of polyvinyl alcohol, polyaniline dissolved in N-methyl pyrrolidinone, and acid; a second solution of copper perchlorate in tetrahydrofuran, and ethylene glycol; and a third solution comprising a mixture of the second solution, the first solution, and peroxide.
Claim 18
Dependent Claim
48 words
The method of claim 1, wherein the micrograft initiator comprises: a first solution of aqueous carboxymethylcellulose, and polyaniline dissolved in N-methyl pyrrolidinone; a second solution of p-toluenesulfonic acid in acetonitrile, and water; and a third solution comprising a mixture of the second solution, the first solution, and peroxide.
Claim 19
Independent Claim
67 words
A method of modifying a surface of an object, comprising: coating the object with (a) a micrograft initiator and (b) a hydrophilic polymer, a hydrophobic polymer, a biofunctional compound, or a combination of these; and, exposing the coated object to infrared radiation, microwave radiation or high voltage polymerization, thereby producing a graft to the surface, wherein the object is a medical device, surgical instrument or an implant.
Claim 20
Independent Claim
67 words
A method of modifying a surface of an object, comprising: coating the object with (a) a micrograft initiator and (b) a hydrophilic polymer, a hydrophobic polymer, a biofunctional compound, or a combination of these; and, exposing the coated object to infrared radiation, microwave radiation or high voltage polymerization, thereby producing a graft to the surface, wherein the object is a medical device, surgical instrument or an implant.
Claim 21
Dependent Claim
133 words
The method of claim 18, wherein the medical device comprises a catheter, intravenous catheter, central venous catheter, stent, wire, guidewire, graft, balloon, suture, screw, staple, pin, plate, drainage device, shunt, tube, gastrointestinal tubes, enteral feeding tubes, vascular tube, vascular shunt, tube for placement in the respiratory system, endotracheal and tracheostomy tubes and cuffs, tube to drain the middle ear, wound drainage tube, fluid drainage tube, tube for placement in the urinary system, tube for placement in the reproductive system, tube for placement in the cardiovascular system, tube which act as shunts, cuff, pump, minipump, electrode, prosthetic device, artificial joint, artificial lens, laser angioplasty device, balloon angioplasty device, ventricular assist, blood dialysis components, blood oxygenators, blood bags, test tubes, blood collection tubes, vacutainers, syringes, needles, pipettes, pipette tips, blood tubing or a contact lens.
Claim 22
Dependent Claim
92 words
The method of claim 18, wherein the implant comprises an artificial knee, ankle, hip, shoulder, thyroplastic device, laryngoplastic device, artificial larynx, pump, tube, shunt, intraocular implant, lens implant, contact lens, electrode, corneal inlay, kerato-prosthesis, vascular stent, epikeratophalia device, glaucoma shunt, retinal staple, scleral buckle, dental prosthesis, dental implants, vascular graft, soft tissue prosthesis, hard tissue prosthesis, pumps, electrical devices including stimulators and recorders, auditory prosthesis, pacemaker, mammary implant, penile implant, cranio/facial tendon, artificial joint, tendon, ligament, menisci, disks, artificial bone, artificial organs including artificial pancreas, artificial heart, artificial limb or heart valve.
Claim 23
Dependent Claim
41 words
The method of claim 18, wherein the surgical instrument comprises a probe, retractor, tissue separator, vessel separator, irrigation tool, aspiration tool, phacoemulsification tool, sponge, hemostat, clamp, blade, scalpel blades, glove, lens glide, positioning tool, catheter, forceps, insertion tool, staple or suture.
Claim 24
Dependent Claim
47 words
The method of claim 18 wherein the micrograft initiator comprises: a first solution of polyvinyl alcohol, ethylene glycol, and polyaniline dissolved in N-methyl pyrrolidinone; a second solution of copper perchlorate; and a third solution comprising a mixture of the second solution, the first solution, acid and peroxide.
Claim 25
Dependent Claim
42 words
The method of claim 18, wherein the hydrophilic polymer comprises hydroxyethyl methacrylate, N-vinyl pyrrolidinone, carboxymethyl cellulose, acrylamide, polyethylene glycol, hydroxypropyl acrylamide, sulfopropyl acrylate, styrene sulfonic acid, potassium styrene sulfonic propyl acrylate, methacrylamide, acrylate, acrylic acid, methacrylic acid, hexa(hydroxypropylcarbamlymethyl)melamine, ethylhydroxyethyl cellulose, or protein.
Claim 26
Independent Claim
83 words
A method of modifying a surface of an object, comprising: coating the object with (a) a rhicrograft initiator and (b) a hydrophilic polymer, a hydrophobic polymer, a biofunctional compound, or a combination thereof; wherein the micrograft initiator comprises (a) a first solution containing polyaniline dissolved in N-methyl pyrrolidinone, (b) a second solution containing copper, perchiorate or p-toluenesulfonic acid, and (c) a peroxide; and exposing the coated object to infrared radiation, microwave radiation or high voltage polymerization, thereby producing a graft to the surface.
Claim 27
Independent Claim
83 words
A method of modifying a surface of an object, comprising: coating the object with (a) a rhicrograft initiator and (b) a hydrophilic polymer, a hydrophobic polymer, a biofunctional compound, or a combination thereof; wherein the micrograft initiator comprises (a) a first solution containing polyaniline dissolved in N-methyl pyrrolidinone, (b) a second solution containing copper, perchiorate or p-toluenesulfonic acid, and (c) a peroxide; and exposing the coated object to infrared radiation, microwave radiation or high voltage polymerization, thereby producing a graft to the surface.
Claim 28
Dependent Claim
24 words
The method of claim 24, wherein the object is selected from the group consisting of metals, woods, polymers, ceramics, plastics, fibers and composites thereof.
Claim 29
Dependent Claim
17 words
The method of claim 24, wherein the object is a medical device, surgical instrument or an implant.
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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) | 2002-08-02 | 2003-02-01 | 2003-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-08-02 | 2007-02-01 | 2007-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-08-02 | 2011-02-01 | 2011-08-03 | $7700.00 | Window Closed / Lapsed |