Patent US5858543A successfully refreshed from Google Patents.
US5858543A
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Silane coated flavor/aroma barrier film
Assignee: Dow Silicones Corp
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Filing: 1995-11-15
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Granted: 1999-01-12
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Expires: 2015-11-15
Abstract
Abstract The present invention relates to the composition and preparation of composite films which exhibit low oxygen and flavor/aroma transmission rates. The film comprises a silane resin coated on a plastic substrate. The silane resin is formed from the mixture of a silane solution, an acrylate, a solvent, and optionally, either an additive, water or both. This invention teaches that a variety of silane solutions and acrylates may be mixed with different solvents to achieve the desired oxygen and flavor/aroma barrier characteristics.
Inventors
- 👤 Daniel Edward Futter
- 👤 Ming-Hsiung Yeh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:19
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; C08J7/16; B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B65; B65D; B65D2577/00; B65D2577/10; B65D2577/20; B65D2577/2025; B65D75/00; B65D75/008; B65D75/04; B65D75/20; B65D75/40; B65D75/44; B65D75/48; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31507; Y10T428/31652; Y10T428/31663; Y10T428/31667; Y10T428/31725; Y10T428/31728; Y10T428/31786; Y10T428/31855; Y10T428/31938
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
226 words
A coated article comprising: a layer of a silane mixture free of solvent and curable in air without irradiation disposed on a plastic substrate wherein said silane mixture consists essentially of (a) a silane having the formula: ##STR3## where R is a hydrocarbon radical having from one to four carbon atoms inclusive, R 5 , R 6 , R 8 are selected from the group consisting of hydrogen, methyl and ethyl radicals, and at least one of R 5 , R 6 , or R 8 is a hydrogen radical, R 7 is a hydrocarbon radical having from two to four carbon atoms inclusive, R 9 is a hydrocarbon radical having from three to six carbon atoms inclusive, (b) an acrylate selected from the group consisting of: ##STR4## where: R is as defined above, R 10 is a hydrogen or methyl group, R 11 is an alkyl or alkenyl group, R 12 is an alkyl group, an alkenyl group, or a -- (CH 2 ) n --O! x --(H 2 C) n group, where n is from 2 to 4, and x is from 1 to 6, q is 1 or 0, and Z is an oxygen, NH, NR, or NR 11 , where R is a hydrocarbon radical having from one to four carbon atoms inclusive, and R 11 is an alkyl or alkenyl group.
Claim 2
Dependent Claim
226 words
A coated article comprising: a layer of a silane mixture free of solvent and curable in air without irradiation disposed on a plastic substrate wherein said silane mixture consists essentially of (a) a silane having the formula: ##STR3## where R is a hydrocarbon radical having from one to four carbon atoms inclusive, R 5 , R 6 , R 8 are selected from the group consisting of hydrogen, methyl and ethyl radicals, and at least one of R 5 , R 6 , or R 8 is a hydrogen radical, R 7 is a hydrocarbon radical having from two to four carbon atoms inclusive, R 9 is a hydrocarbon radical having from three to six carbon atoms inclusive, (b) an acrylate selected from the group consisting of: ##STR4## where: R is as defined above, R 10 is a hydrogen or methyl group, R 11 is an alkyl or alkenyl group, R 12 is an alkyl group, an alkenyl group, or a -- (CH 2 ) n --O! x --(H 2 C) n group, where n is from 2 to 4, and x is from 1 to 6, q is 1 or 0, and Z is an oxygen, NH, NR, or NR 11 , where R is a hydrocarbon radical having from one to four carbon atoms inclusive, and R 11 is an alkyl or alkenyl group.
Claim 3
Dependent Claim
48 words
The coated article of claim 1, wherein the plastic substrate is selected from the group consisting of polyethylene, polypropylene, a polyethylene copolymer, a polyester, polyester coextrusions, laminates of polyesters and polyester coextrusions, polyamide, cellophane, polycarbonate, polyvinyl alcohol, ethylene/vinyl alcohol copolymers, coated paper, coated cardboard, coextruded laminates, and polystyrene.
Claim 4
Dependent Claim
15 words
The coated article of claim 1, wherein the substrate has an acrylic coating disposed thereon.
Claim 5
Dependent Claim
191 words
A multi-layer construction consisting essentially of: a single layer of silicone resin disposed between a plastic substrate and a second substrate wherein said silicone resin is derived from a silane mixture consisting essentially of: (a) a silane having the formula: ##STR5## where: R is as defined above, R 10 is a hydrogen or methyl group, R 11 is an alkyl or alkenyl group, R 12 is an alkyl group, an alkenyl group, or a -- (CH 2 ) n --O! x --(H 2 C) n group, where each n is independently from 2 to 4, and x is from 1 to 6, q is 1 or 0, and Z is oxygen, NH, NR, or NR 1 , where R is a hydrocarbon radical having from one to four carbon atoms inclusive, and R 11 is an alkyl or alkenyl group; and (c) and optionally, a solvent, wherein the plastic substrate and the second substrate are independently selected from the group consisting of polyethylene polypropylene, a polyethylene copolymer, a polyester, polyester coextrusions, laminates of polyesters and polyester coextrusions, polyamide, cellophane, polycarbonate, ethylene/vinyl alcohol copolymers, coated paper, coated cardboard, coextruded laminates, and polystyrene.
Claim 6
Dependent Claim
191 words
A multi-layer construction consisting essentially of: a single layer of silicone resin disposed between a plastic substrate and a second substrate wherein said silicone resin is derived from a silane mixture consisting essentially of: (a) a silane having the formula: ##STR5## where: R is as defined above, R 10 is a hydrogen or methyl group, R 11 is an alkyl or alkenyl group, R 12 is an alkyl group, an alkenyl group, or a -- (CH 2 ) n --O! x --(H 2 C) n group, where each n is independently from 2 to 4, and x is from 1 to 6, q is 1 or 0, and Z is oxygen, NH, NR, or NR 1 , where R is a hydrocarbon radical having from one to four carbon atoms inclusive, and R 11 is an alkyl or alkenyl group; and (c) and optionally, a solvent, wherein the plastic substrate and the second substrate are independently selected from the group consisting of polyethylene polypropylene, a polyethylene copolymer, a polyester, polyester coextrusions, laminates of polyesters and polyester coextrusions, polyamide, cellophane, polycarbonate, ethylene/vinyl alcohol copolymers, coated paper, coated cardboard, coextruded laminates, and polystyrene.
Claim 7
Dependent Claim
12 words
The multi-layer construction of claim 4 wherein said solvent is an alcohol.
Claim 8
Dependent Claim
12 words
The multi-layer construction of claim 4 wherein said silane mixture includes water.
Claim 9
Dependent Claim
20 words
The multi-layer construction of claim 4 wherein the plastic substrate or the second substrate has an acrylic coating disposed thereon.
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) | 2002-01-11 | 2002-07-13 | 2003-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-01-11 | 2006-07-13 | 2007-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-01-11 | 2010-07-13 | 2011-01-12 | $7700.00 | Window Closed / Lapsed |