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US5463010A
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Hydrocyclosiloxane membrane prepared by plasma polymerization process
Assignee: MAVITZ WILLIAM G
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Filing: 1993-11-12
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Granted: 1995-10-31
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Expires: 2013-11-12
Abstract
Abstract Plasma polymerized membranes comprising polymerized aliphatic hydrocyclosiloxane monomers optionally copolymerized with co-monomers and methods for their preparation are described. These methods may be used to coat substrates to impart properties such as hydrophobicity, thromboresistance, gas permeability and biocompatibility.
Inventors
- 👤 Chen-Ze Hu
- 👤 Eric K. Dolence
- 👤 Shigemasa Osaki
- 👤 Clifton G. Sanders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:26
CPC Classifications
B; B05; B05D; B05D1/00; B05D1/62; B01; B01D; B01D69/00; B01D69/12; B01D69/125; B01D69/127; C; C09; C09D; C09D183/00; C09D183/04; C09D4/00; C08; C08G; C08G77/00; C08G77/04; C08G77/12; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 39
Claim 1
Independent Claim
43 words
A composition of matter comprising a membrane formed from the plasma polymerization of hydrocyclosiloxane monomer of the general formula: ##STR5## where R is an aliphatic group having 1 to about 5 carbon atoms and n is an integer from 2 to about 10.
Claim 2
Dependent Claim
43 words
A composition of matter comprising a membrane formed from the plasma polymerization of hydrocyclosiloxane monomer of the general formula: ##STR5## where R is an aliphatic group having 1 to about 5 carbon atoms and n is an integer from 2 to about 10.
Claim 3
Dependent Claim
11 words
A composition of claim 1, wherein n is 7 to 10.
Claim 4
Dependent Claim
11 words
A composition of claim 1, wherein n is 4 to 6.
Claim 5
Dependent Claim
11 words
A composition of claim 1, wherein n is 2 to 3.
Claim 6
Dependent Claim
27 words
A composition of claim 1, wherein said hydrocyclosiloxane monomer is selected from the group consisting of 1,3,5,7-tetramethylhydrocyclotetrasiloxane, 1,3,5,7,9-pentamethylhydrocyclopentasiloxane, 1,3,5,7,9,11-hexamethylhydrocyclohexasiloxane, and a mixture of 1,3,5,7,9-pentamethylcyclopentasiloxane and 1,3,5,6,9,11-hexamethylcyclohexasiloxane monomers.
Claim 7
Dependent Claim
41 words
A composition of claim 1, wherein said membrane has a FTIR spectra characterized by absorption bands at 2960 cm -1 , 2902 cm -1 , 2170 cm -1 , 1260 cm -1 , 1025 cm -1 and 1143 cm -1 .
Claim 8
Dependent Claim
17 words
A composition of claim 1, wherein said membrane exhibits FTIR spectra substantially the same as FIG. 3.
Claim 9
Dependent Claim
17 words
A composition of claim 1, wherein said membrane exhibits FTIR spectra substantially the same as FIG. 4.
Claim 10
Dependent Claim
19 words
A composition of claim 1, wherein said membrane exhibits ESCA spectra substantially the same as FIGS. 9A to 9C.
Claim 11
Dependent Claim
19 words
A composition of claim 1, wherein said membrane exhibits ESCA spectra substantially the same as FIGS. 10A to 10C.
Claim 12
Dependent Claim
98 words
A composition comprising a membrane formed from the plasma copolymerization of a hydrocyclosiloxane monomer of the general formula: ##STR6## where R is a aliphatic group and n is an integer from 2 to about 10, and a co-monomer selected from the group consisting of fluorocarbon monomers, organo-based monomers selected from the group consisting of ethylene, allylamine, N-trimethylsilylallylamine, hydrocarbons, N-protected unsaturated amines, N-unprotected unsaturated amines, N-protected cyclic aliphatic amines, N-unprotected cyclic aliphatic amines, mercaptans, nitriles and organophosphorus compounds; and functionalizing monomers selected from the group consisting of N 2 , CO 2 , NH 3 and SO 2 .
Claim 13
Dependent Claim
98 words
A composition comprising a membrane formed from the plasma copolymerization of a hydrocyclosiloxane monomer of the general formula: ##STR6## where R is a aliphatic group and n is an integer from 2 to about 10, and a co-monomer selected from the group consisting of fluorocarbon monomers, organo-based monomers selected from the group consisting of ethylene, allylamine, N-trimethylsilylallylamine, hydrocarbons, N-protected unsaturated amines, N-unprotected unsaturated amines, N-protected cyclic aliphatic amines, N-unprotected cyclic aliphatic amines, mercaptans, nitriles and organophosphorus compounds; and functionalizing monomers selected from the group consisting of N 2 , CO 2 , NH 3 and SO 2 .
Claim 14
Dependent Claim
11 words
A composition of claim 11, wherein n is 7 to 10.
Claim 15
Dependent Claim
11 words
A composition of claim 11, wherein n is 4 to 6.
Claim 16
Dependent Claim
11 words
A composition of claim 11, wherein n is 2 to 3.
Claim 17
Dependent Claim
27 words
A composition of claim 11, wherein said hydrocyclosiloxane monomer is selected from the group consisting of 1,3,5,7-tetramethylhydrocyclotetrasiloxane, 1,3,5,7,9-pentamethylhydrocyclopentasiloxane, 1,3,5,7,9,11-hexamethylhydrocyclohexasiloxane, and a mixture of 1,3,5,7,9-pentamethylcyclopentasiloxane and 1,3,5,6,9,11-hexamethylcyclohexasiloxane monomers.
Claim 18
Dependent Claim
31 words
A composition of claim 11, wherein said hydrocyclosiloxane is selected from the group consisting of 1,3,5,7-tetramethylhydrocyclotetrasiloxane, 1,3,5,7,9-pentamethylhydrocyclopentasiloxane, 1,3,5,7,9,11-hexamethylhydrocyclohexasiloxane, and a mixture of 1,3,5,7,9-pentamethylcyclopentasiloxane and 1,3,5,6,9,11-hexamethylcyclohexasiloxane monomers and said co-monomer is hexafluoropropylene.
Claim 19
Dependent Claim
31 words
A composition of claim 11, wherein said hydrocyclosiloxane is selected from the group consisting of 1,3,5,7-tetramethylhydrocyclotetrasiloxane, 1,3,5,7,9-pentamethylhydrocyclopentasiloxane, 1,3,5,7,9,11-hexamethylhydrocyclohexasiloxane, and a mixture of 1,3,5,7,9-pentamethylcyclopentasiloxane and 1,3,5,6,9,11-hexamethylcyclohexasiloxane monomers and said co-monomer is ethylene.
Claim 20
Dependent Claim
31 words
A composition of claim 11, wherein said hydrocyclosiloxane is selected from the group consisting of 1,3,5,7-tetramethylhydrocyclotetrasiloxane, 1,3,5,7,9-pentamethylhydrocyclopentasiloxane, 1,3,5,7,9,11-hexamethylhydrocyclohexasiloxane, and a mixture of 1,3,5,7,9-pentamethylcyclopentasiloxane and 1,3,5,6,9,11-hexamethylcyclohexasiloxane monomers and said co-monomer is N-trimethylsilylallylamine.
Claim 21
Dependent Claim
49 words
A composition of claim 11, wherein said hydrocyclosiloxane is selected from the group consisting of 1,3,5,7-tetramethylhydrocyclotetrasiloxane, 1,3,5,7,9-pentamethylhydrocyclopentasiloxane, 1,3,5,7,9,11-hexamethylhydrocyclohexasiloxane, and a mixture of 1,3,5,7,9-pentamethylcyclopentasiloxane and 1,3,5,6,9,11-hexamethylcyclohexasiloxane monomers and said co-monomer is selected from the group consisting of NH 3 , SO 2 , N 2 , or CO 2 .
Claim 22
Dependent Claim
20 words
A composition of claim 15, wherein said membrane has a FTIR spectra substantially as depicted in FIGS. 3B or 4.
Claim 23
Dependent Claim
18 words
A composition in claim 16, wherein said membrane has a FTIR spectra substantially as depicted in FIG. 5.
Claim 24
Dependent Claim
18 words
A composition of claim 17, wherein said membrane has a FTIR spectra substantially as depicted in FIG. 6.
Claim 25
Dependent Claim
18 words
A composition of claim 18, wherein said membrane has a FTIR spectra substantially as depicted in FIG. 7.
Claim 26
Dependent Claim
18 words
A composition of claim 19, wherein said membrane has a FTIR spectra substantially as depicted in FIG. 8.
Claim 27
Dependent Claim
19 words
A composition of claim 15, wherein said membrane has ESCA spectra substantially as depicted in FIGS. 9A to 9C.
Claim 28
Dependent Claim
19 words
A composition of claim 15, wherein said membrane has ESCA spectra substantially as depicted in FIGS. 10A to 10C.
Claim 29
Dependent Claim
19 words
A composition of claim 16, wherein said membrane has ESCA spectra substantially as depicted in FIGS. 11A to 11D.
Claim 30
Dependent Claim
19 words
A composition of claim 17, wherein said membrane has ESCA spectra substantially as depicted in FIGS. 12A to 12C.
Claim 31
Dependent Claim
19 words
A composition of claim 18, wherein said membrane has ESCA spectra substantially as depicted in FIGS. 13A to 13D.
Claim 32
Dependent Claim
19 words
A composition of claim 19, wherein said membrane has ESCA spectra substantially as depicted in FIGS. 14A to 14E.
Claim 33
Dependent Claim
15 words
A composition of any one of claims 1 to 10, wherein said membrane is biocompatible.
Claim 34
Dependent Claim
15 words
A composition of any one of claims 11 to 30, wherein said membrane is biocompatible.
Claim 35
Dependent Claim
16 words
A composition of any one of claims 1 to 10, wherein said membrane is gas permeable.
Claim 36
Dependent Claim
44 words
A composition of claim 25 or 26 wherein said membrane has an oxygen permeation rate from 0.4 to 20, CO 2 permeation rate from 1 to 50 (X10 -4 cm 3 /cm 2 *sec*cmHg) and CO 2 /O 2 selectivity between 1.5 and 7.
Claim 37
Dependent Claim
16 words
A composition of any one of claims 11 to 30, wherein said membrane is gas permeable.
Claim 38
Dependent Claim
15 words
A composition of any one of claims 1 to 10, wherein said membrane is thromboresistant.
Claim 39
Dependent Claim
15 words
A composition of any one of claims 11 to 30, wherein said membrane is thromboresistant.
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) | 1998-10-30 | 1999-05-01 | 1999-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-10-30 | 2003-05-01 | 2003-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-10-30 | 2007-05-01 | 2007-10-31 | $7700.00 | Window Closed / Lapsed |