US5364693A
Expired / Lapsed
US
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Orthopedic support materials
Assignee: 3M Co
•
Filing: 1993-01-25
•
Granted: 1994-11-15
•
Expires: 2013-01-25
Abstract
Abstract The present invention provides a water-curable resin composition for use in an orthopedic cast composed of a water-reactive liquid organometallic compound having at least one hydrolyzable group per molecule and a viscosity of no greater than about 100,000 centipoise under ambient conditions; and an organic polymer, having a number average molecular weight of at least about 400, mixed with the water-reactive liquid organometallic compound. Preferably, the water-reactive liquid organometallic compound is a compound of the formula (R 1 O) x MR 2 .sub.(y-x) wherein: each R 1 is independently a substituted or unsubstituted C 1 -C 100 hydrocarbon group, optionally interrupted in the backbone by 1-50 nonperoxide --O--, --S--, --C(O)--, or --N-- groups; each R 2 is independently selected from the group consisting of hydrogen and a substituted or unsubstituted C 1 -C 100 hydrocarbon group, optionally interrupted in the backbone by 1-50 nonperoxide --O--, --S--, --C(O)--, or --N-- groups; x is an integer between 1 and y, inclusive; y is the valence of M; and M is boron, aluminum, silicon, or titanium.
Inventors
- 👤 Dean M. Moren
- 👤 Dean A. Ersfeld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:19
CPC Classifications
A; A61; A61L; A61L15/00; A61L15/07; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2861; Y10T442/2893; Y10T442/291; Y10T442/2926; Y10T442/2992
Claims Analysis
Total Claims: 43
Claim 1
Independent Claim
72 words
An orthopedic support material comprising: (a) a water-curable resin composition comprising: (i) a water-reactive liquid organometallic compound having at least one hydrolyzable group per molecule and a viscosity of no greater than about 100,000 centipoise under ambient conditions; and (ii) an organic polymer, having a number average molecular weight of at least about 400, mixed with the water-reactive liquid organometallic compound; and (b) a flexible substrate coated with the water-curable resin composition.
Claim 2
Dependent Claim
72 words
An orthopedic support material comprising: (a) a water-curable resin composition comprising: (i) a water-reactive liquid organometallic compound having at least one hydrolyzable group per molecule and a viscosity of no greater than about 100,000 centipoise under ambient conditions; and (ii) an organic polymer, having a number average molecular weight of at least about 400, mixed with the water-reactive liquid organometallic compound; and (b) a flexible substrate coated with the water-curable resin composition.
Claim 3
Dependent Claim
41 words
The orthopedic support material of claim 1 wherein the resin composition is stable at a temperature of about 0°-40° C. and is capable of curing upon exposure to water to form a support material at a temperature of about 10°-100° C.
Claim 4
Dependent Claim
23 words
The orthopedic support material of claim 2 wherein the water-curable resin composition is capable of curing at a temperature of about 20°-50° C.
Claim 5
Dependent Claim
22 words
The orthopedic support material of claim 2 wherein the resin composition is capable of curing at a temperature of about 20°-30° C.
Claim 6
Dependent Claim
25 words
The orthopedic support material of claim 1 wherein the resin composition is capable of curing upon exposure to water without the generation of substantial heat.
Claim 7
Dependent Claim
22 words
The orthopedic support material of claim 1 wherein the water-curable resin composition has a viscosity of about 5,000-500,000 centipoise under ambient conditions.
Claim 8
Dependent Claim
19 words
The orthopedic support material of claim 1 wherein the organic polymer is dissolved within the water-reactive liquid organometallic compound.
Claim 9
Dependent Claim
17 words
The orthopedic support material of claim 1 wherein the water-curable resin composition contains substantially no organic solvent.
Claim 10
Dependent Claim
22 words
The orthopedic support material of claim 1 wherein the viscosity of the liquid organometallic compound is no greater than about 3,000 centipoise.
Claim 11
Dependent Claim
127 words
The orthopedic support material of claim 1 wherein the water-reactive liquid organometallic compound is a compound of the formula (R 1 O) x MR 2 .sub.(y-x) wherein: (a) each R 1 is independently a substituted or unsubstituted C 1 -C 100 hydrocarbon group, optionally interrupted in the backbone by 1-50 nonperoxide --O--, --S--, --C(O)--, or --N-- groups; (b) each R 2 is independently selected from the group consisting of hydrogen and a substituted or unsubstituted C 1 -C 100 hydrocarbon group, optionally interrupted in the backbone by 1-50 nonperoxide --O--, --S--, --C(O)--, or --N-- groups; (c) x is an integer between 1 and y, inclusive; (d) y is the valence of M; and (e) M is selected from the group consisting of boron, aluminum, silicon, and titanium.
Claim 12
Dependent Claim
9 words
The orthopedic support material of claim 10 wherein y=x.
Claim 13
Dependent Claim
84 words
The orthopedic support material of claim 10 wherein: (a) each R 1 is independently selected from the group consisting of a C 1 -C 20 alkyl, a C 3 -C 18 cycloalkyl, a C 6 -C 18 aryl, and a C 1 -C 18 acyl; and (b) each R 2 is independently selected from the group consisting of hydrogen, a C 1 -C 20 alkyl, a C 3 -C 18 cycloalkyl, a C 6 -C 18 aryl, and a C 2 -C 18 alkenyl.
Claim 14
Dependent Claim
25 words
The orthopedic support material of claim 12 wherein each R 2 is independently selected from the group consisting of hydrogen, methyl, ethyl, phenyl, and vinyl.
Claim 15
Dependent Claim
15 words
The orthopedic support material of claim 13 wherein the water-reactive liquid organometallic compound is tetraethoxysilane.
Claim 16
Dependent Claim
20 words
The orthopedic support material of claim 1 wherein the organic polymer has a number average molecular weight of about 4,000-30,000.
Claim 17
Dependent Claim
21 words
The orthopedic support material of claim 1 wherein the water-curable resin composition further includes an effective amount of an acid catalyst.
Claim 18
Dependent Claim
21 words
The orthopedic support material of claim 1 wherein the water-reactive liquid organometallic compound has at least three hydrolyzable groups per molecule.
Claim 19
Dependent Claim
145 words
An orthopedic support material comprising: (a) a water-curable resin composition comprising: (i) a water-reactive liquid organometallic compound of the formula (R 1 O) x MR 2 .sub.(y-x) wherein: (A) each R 1 is independently selected from the group consisting of a C 1 -C 8 alkyl, a C 5 -C 8 cycloalkyl, a C 6 -C 10 aryl, and a C 1 -C 8 acyl; and (B) each R 2 is independently selected from the group consisting of hydrogen, a C 1 -C 10 alkyl, a C 5 -C 8 cycloalkyl, a C 6 -C 10 aryl, and a C 2 -C 10 alkenyl; (ii) an effective amount of a catalyst; and (iii) an organic polymer, having a number average molecular weight of at least about 400, mixed with the water-reactive liquid organometallic compound; and (b) a flexible substrate impregnated with the water-curable resin composition.
Claim 20
Dependent Claim
145 words
An orthopedic support material comprising: (a) a water-curable resin composition comprising: (i) a water-reactive liquid organometallic compound of the formula (R 1 O) x MR 2 .sub.(y-x) wherein: (A) each R 1 is independently selected from the group consisting of a C 1 -C 8 alkyl, a C 5 -C 8 cycloalkyl, a C 6 -C 10 aryl, and a C 1 -C 8 acyl; and (B) each R 2 is independently selected from the group consisting of hydrogen, a C 1 -C 10 alkyl, a C 5 -C 8 cycloalkyl, a C 6 -C 10 aryl, and a C 2 -C 10 alkenyl; (ii) an effective amount of a catalyst; and (iii) an organic polymer, having a number average molecular weight of at least about 400, mixed with the water-reactive liquid organometallic compound; and (b) a flexible substrate impregnated with the water-curable resin composition.
Claim 21
Dependent Claim
15 words
The orthopedic support material of claim 18 wherein the resin composition further includes a filler.
Claim 22
Dependent Claim
13 words
The orthopedic support material of claim 19 wherein the filler is calcium metasilicate.
Claim 23
Dependent Claim
15 words
The orthopedic support material of claim 18 wherein the organic polymer is a nonreactive polymer.
Claim 24
Dependent Claim
19 words
The orthopedic support material of claim 21 wherein the nonreactive organic polymer is blended with a second dissimilar polymer.
Claim 25
Dependent Claim
25 words
The orthopedic support material of claim 18 wherein the organic polymer is an addition polymer derived from at least one type of ethylenically unsaturated monomer.
Claim 26
Dependent Claim
32 words
The orthopedic support material of claim 23 wherein the ethylenically unsaturated monomer is selected from the group consisting of butadiene, styrene, isobutyl methacrylate, maleic anhydride, vinyl triethoxysilane, 3-(trimethoxysilyl)propyl methacrylate, and mixtures thereof.
Claim 27
Dependent Claim
14 words
The orthopedic support material of claim 18 wherein the catalyst is an acid catalyst.
Claim 28
Dependent Claim
32 words
The orthopedic support material of claim 25 wherein the catalyst is selected from the group consisting of an alkane sulfonic acid, a perfluorocarboxylic acid, a bis(perfluoroalkylsulfonyl)methane, a dialkyl phosphate, and mixtures thereof.
Claim 29
Dependent Claim
15 words
The orthopedic support material of claim 18 wherein the organic polymer is a condensation polymer.
Claim 30
Dependent Claim
17 words
The orthopedic support material of claim 27 wherein the condensation polymer is an alkoxy silane-functional organic polymer.
Claim 31
Dependent Claim
33 words
A cured orthopedic support comprising a substrate impregnated with crosslinked metal oxide regions, wherein the metal is selected from the group consisting of Si, Ti, Al, and B, intertwined with organic polymeric regions.
Claim 32
Dependent Claim
33 words
A cured orthopedic support comprising a substrate impregnated with crosslinked metal oxide regions, wherein the metal is selected from the group consisting of Si, Ti, Al, and B, intertwined with organic polymeric regions.
Claim 33
Dependent Claim
79 words
A water-curable resin-coated sheet comprising: (a) a water-curable resin composition comprising: (i) a water-reactive liquid organometallic compound having at least one hydrolyzable group per molecule and a viscosity of no greater than about 100,000 centipoise under ambient conditions; (ii) an organic polymer, having a number average molecular weight of at least about 400, mixed with the water-reactive liquid organometallic compound; and (iii) an effective amount of a catalyst; and (b) a flexible substrate impregnated with the water-curable resin composition.
Claim 34
Dependent Claim
79 words
A water-curable resin-coated sheet comprising: (a) a water-curable resin composition comprising: (i) a water-reactive liquid organometallic compound having at least one hydrolyzable group per molecule and a viscosity of no greater than about 100,000 centipoise under ambient conditions; (ii) an organic polymer, having a number average molecular weight of at least about 400, mixed with the water-reactive liquid organometallic compound; and (iii) an effective amount of a catalyst; and (b) a flexible substrate impregnated with the water-curable resin composition.
Claim 35
Dependent Claim
14 words
The water-curable resin-coated sheet of claim 30 wherein the polymer is an addition polymer.
Claim 36
Independent Claim
56 words
A method of preparing an orthopedic support material comprising impregnating a flexible substrate with a water-curable resin composition comprising: (a) a water-reactive liquid organometallic compound having at least one hydrolyzable group per molecule; and (b) an organic polymer, having a number average molecular weight of at least about 400, mixed with the water-reactive liquid organometallic compound.
Claim 37
Independent Claim
56 words
A method of preparing an orthopedic support material comprising impregnating a flexible substrate with a water-curable resin composition comprising: (a) a water-reactive liquid organometallic compound having at least one hydrolyzable group per molecule; and (b) an organic polymer, having a number average molecular weight of at least about 400, mixed with the water-reactive liquid organometallic compound.
Claim 38
Dependent Claim
23 words
The method of claim 32 wherein the water-curable resin composition is prepared by dissolving the organic polymer in the water-reactive liquid organometallic compound.
Claim 39
Dependent Claim
38 words
The method of claim 33 wherein the step of dissolving the polymer in the liquid organometallic compound includes mixing the organic polymer and the liquid organometallic compound and heating the mixture at a temperature of about 80°-160° C.
Claim 40
Dependent Claim
57 words
The method of claim 32 wherein the water-curable resin composition is prepared by: (a) dissolving the organic polymer in an organic solvent having a boiling point lower than that of the liquid organometallic compound; (b) diluting the solution of the organic polymer in the organic solvent with the liquid organometallic compound; and (c) removing the organic solvent.
Claim 41
Dependent Claim
35 words
The method of claim 35 wherein the step of removing the organic solvent includes a step of heating the solution of organic polymer, organometallic compound, and organic solvent at a temperature of about 80°-120° C.
Claim 42
Dependent Claim
47 words
The method of claim 32 wherein the water-curable resin composition is prepared by: (a) adding at least one type of monomer to the liquid organometallic compound; and (b) adding a polymerization initiator to the mixture of monomer and liquid organometallic compound to convert the monomer to polymer.
Claim 43
Dependent Claim
28 words
The method of claim 37 further including a step of heating the mixture of monomer, liquid organometallic compound, and polymerization initiator at a temperature of about 70°-140° C.
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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) | 1997-11-14 | 1998-05-16 | 1998-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-11-14 | 2002-05-16 | 2002-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-11-14 | 2006-05-16 | 2006-11-15 | $7700.00 | Window Closed / Lapsed |