US4180614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas-barrier coated films, sheets or foils and method of preparation
Assignee: EIDP Inc
•
Filing: 1977-12-16
•
Granted: 1979-12-25
•
Expires: 1997-12-16
Abstract
Abstract Films, sheets or foils are given a gas-barrier coating of an aromatic polyamide, polyimide, polyamide-imide, polyhydrazide, polyamide-hydrazide, or polyazomethine by direct vapor-phase condensation polymerization of their respective monomers. The monomers are introduced in an inert diluent gas, mixed and reacted in the presence of the surface to be coated. The surface is maintained above the critical minimum deposition temperature of the monomers but below about 300° C. The coating is formed to a thickness between about 0.1 and 0.6 mil.
Inventors
- 👤 Rudolph J. Angelo
- 👤 Richard N. Blomberg
- 👤 Fritz P. Boettcher
- 👤 Richard M. Ikeda
- 👤 Michael R. Samuels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:20
CPC Classifications
B; B05; B05D; B05D1/00; B05D1/60; C; C08; C08G; C08G12/00; C08G12/02; C08G12/04; C08G12/06; C08G12/08; C08G69/00; C08G69/02; C08G69/26; C08G69/32; C08G73/00; C08G73/06; C08G73/08; C08G73/10; C08G73/1003; C08G73/1007; C08G73/1028; C08G73/1067; C08G73/14; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/048; C08J2477/00; C08J2479/00; Y; Y10; Y10S; Y10S428/00; Y10S428/91; Y10S428/911; Y10S428/913; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/31504; Y10T428/31678; Y10T428/31681; Y10T428/31725; Y10T428/31736
Claims Analysis
Total Claims: 61
Claim 1
Independent Claim
108 words
A process for forming a gas-barrier coating on a film, sheet or foil, said coating being an aromatic polyamide, polyimide, polyamide-imide, polyhydrazide, polyamidehydrazide or polyazomethine formed by the direct vapor-phase condensation polymerization of their respective monomers, which process comprises vaporizing said monomers, mixing said vaporized monomers in the presence of an inert diluent gas and reacting said mixed monomers in a reaction zone, in the presence of said film, sheet or foil maintained above the critical minimum deposition temperature of said monomers but below about 300° C., and forming the condensation polymer on the surface of said film to a thickness between about 0.01 and about 0.6 mil.
Claim 2
Dependent Claim
108 words
A process for forming a gas-barrier coating on a film, sheet or foil, said coating being an aromatic polyamide, polyimide, polyamide-imide, polyhydrazide, polyamidehydrazide or polyazomethine formed by the direct vapor-phase condensation polymerization of their respective monomers, which process comprises vaporizing said monomers, mixing said vaporized monomers in the presence of an inert diluent gas and reacting said mixed monomers in a reaction zone, in the presence of said film, sheet or foil maintained above the critical minimum deposition temperature of said monomers but below about 300° C., and forming the condensation polymer on the surface of said film to a thickness between about 0.01 and about 0.6 mil.
Claim 3
Dependent Claim
19 words
The process defined in claim 1 wherein said coating is between about 0.05 and about 0.2 mil in thickness.
Claim 4
Dependent Claim
30 words
The process defined in claim 1 wherein said coating is an aromatic polyamide and said film, sheet or foil is maintained at a temperature between about 160° and 300° C.
Claim 5
Dependent Claim
19 words
The process defined in claim 3 wherein said monomers are p-phenylene diamine and the diacid chloride of terephthalic acid.
Claim 6
Dependent Claim
19 words
The process defined in claim 3 wherein said monomers are m-phenylene diamine and the diacid chloride of terephthalic acid.
Claim 7
Dependent Claim
19 words
The process defined in claim 3 wherein said monomers are m-phenylene diamine and the diacid chloride of isophthalic acid.
Claim 8
Dependent Claim
24 words
The process defined in claim 6 wherein the diacid chloride of isophthalic acid is present in mixture with the diacid chloride of terephthalic acid.
Claim 9
Dependent Claim
24 words
The process as defined in claim 3 wherein said film, sheet or foil is a polyimide film or a biaxially oriented, heat-set polyester film.
Claim 10
Dependent Claim
28 words
The process as defined in claim 8 wherein said polyester film is polyethylene terephthalate film and said monomers are p-phenylene diamine and the diacid chloride of terephthalic acid.
Claim 11
Dependent Claim
14 words
The process as defined in claim 1 wherein said coating is an aromatic polyimide.
Claim 12
Dependent Claim
47 words
The process as defined in claim 10 wherein said film, sheet or foil is maintained at a temperature between about 120° C. and 200° C. and the condensation polymer formed on the surface is the polyamic acid which is subsequently heated to convert it to the polyimide.
Claim 13
Dependent Claim
25 words
The process as defined in claim 10 wherein said film, sheet or foil is maintained at a temperature between about 200° C. and 300° C.
Claim 14
Dependent Claim
16 words
The process as defined in claim 10 wherein said monomers are 4,4'-diaminodiphenyl ether and pyromellitic dianhydride.
Claim 15
Dependent Claim
16 words
The process as defined in claim 10 wherein the monomers are p-phenylene diamine and pyromellitic dianhydride.
Claim 16
Dependent Claim
14 words
The process as defined in claim 1 wherein said coating is an aromatic polyamide-imide.
Claim 17
Dependent Claim
47 words
The process as defined in claim 15 wherein said film, sheet or foil is maintained at a temperature between about 140° C. and 200° C. and the condensation polymer formed on the surface is the polyamide-amic acid which is subsequently heated to convert it to the polyamide-imide.
Claim 18
Dependent Claim
25 words
The process as defined in claim 15 wherein said film, sheet or foil is maintained at a temperature between about 200° C. and 300° C.
Claim 19
Dependent Claim
18 words
The process as defined in claim 15 wherein said monomers are 4,4'-diaminodiphenyl ether and trimellitic anhydride monoacid chloride.
Claim 20
Dependent Claim
18 words
The process as defined in claim 15 wherein said monomers are p-phenylene diamine and trimellitic anhydride monoacid chloride.
Claim 21
Dependent Claim
32 words
The process as defined in claim 1 wherein said coating is an aromatic polyhydrazide and said film, sheet or foil is maintained at a temperature between about 120° C. and 300° C.
Claim 22
Dependent Claim
23 words
The process as defined in claim 20 wherein said monomers are the hydrazide of isophthalic acid and the diacid chloride of terephthalic acid.
Claim 23
Dependent Claim
32 words
The process as defined in claim 1 wherein said coating is an aromatic polyamide-hydrazide and said film, sheet or foil is maintained at a temperature between about 100° C. and 300° C.
Claim 24
Dependent Claim
19 words
The process as defined in claim 22 wherein said monomers are p-aminobenzhydrazide and the diacid chloride of terephthalic acid.
Claim 25
Dependent Claim
25 words
The process as defined in claim 23 wherein said film, sheet or foil is a polyimide film or a biaxially oriented, heat-set polyethylene terephthalate film.
Claim 26
Dependent Claim
32 words
The process as defined in claim 1 wherein said coating is an aromatic polyazomethine and said film, sheet or foil is maintained at a temperature between about 100° C. and 300° C.
Claim 27
Dependent Claim
16 words
The process as defined in claim 25 wherein said monomers are p-phenylene diamine and terephthalyl aldehyde.
Claim 28
Dependent Claim
25 words
The process as defined in claim 26 wherein said film, sheet or foil is a polyimide film or a biaxially oriented, heat-set polyethylene terephthalate film.
Claim 29
Dependent Claim
77 words
A film, sheet or foil having a gas-barrier coating thereon of an aromatic polyamide, polyimide, polyamide-imide, polyhydrazide, polyamide-hydrazide or polyazomethine formed onto said film by the direct vapor-phase condensation polymerization of their respective monomers mixed in the vapor state and reacted in the presence of said film, sheet or foil maintained above the critical minimum deposition temperature of said monomers but below about 300° C., said coating having a thickness between about 0.01 and about 0.6 mil.
Claim 30
Dependent Claim
77 words
A film, sheet or foil having a gas-barrier coating thereon of an aromatic polyamide, polyimide, polyamide-imide, polyhydrazide, polyamide-hydrazide or polyazomethine formed onto said film by the direct vapor-phase condensation polymerization of their respective monomers mixed in the vapor state and reacted in the presence of said film, sheet or foil maintained above the critical minimum deposition temperature of said monomers but below about 300° C., said coating having a thickness between about 0.01 and about 0.6 mil.
Claim 31
Dependent Claim
23 words
A film, sheet or foil as defined in claim 28 wherein said coating is between about 0.05 and about 0.2 mil in thickness.
Claim 32
Dependent Claim
35 words
A film, sheet or foil as defined in claim 28 wherein said coating is an aromatic polyamide and said film, sheet or foil is maintained at a temperature between about 160° C. and 300° C.
Claim 33
Dependent Claim
23 words
A film, sheet or foil as defined in claim 30 wherein said monomers are p-phenylene diamine and the diacid chloride of terephthalic acid.
Claim 34
Dependent Claim
23 words
The film, sheet or foil as defined in claim 30 wherein said monomers are m-phenylene diamine and the diacid chloride of terephthalic acid.
Claim 35
Dependent Claim
23 words
The film, sheet or foil as defined in claim 30 wherein said monomers are m-phenylene diamine and the diacid chloride of isophthalic acid.
Claim 36
Dependent Claim
28 words
The film, sheet or foil as defined in claim 33 wherein the diacid chloride of isophthalic acid is present in mixture with the diacid chloride of terephthalic acid.
Claim 37
Dependent Claim
27 words
The film, sheet or foil as defined in claim 30 wherein said film, sheet or foil is a polyimide film or a biaxially oriented, heat-set polyester film.
Claim 38
Dependent Claim
29 words
The film, sheet or foil as defined in claim 35 wherein said polyester is polyethylene terephthalate and said monomers are p-phenylene diamine and the diacid chloride of terephthalic acid.
Claim 39
Dependent Claim
17 words
The film, sheet or foil as defined in claim 28 wherein said coating is an aromatic polyimide.
Claim 40
Dependent Claim
50 words
The film, sheet or foil as defined in claim 37 wherein said film, sheet or foil is maintained at a temperature between about 120° C. and 200° C. and the condensation polymer formed on the surface is the polyamic acid which is subsequently heated to convert it to the polyimide.
Claim 41
Dependent Claim
28 words
The film, sheet or foil as defined in claim 37 wherein said film, sheet or foil is maintained at a temperature between about 200° C. and 300° C.
Claim 42
Dependent Claim
19 words
The film, sheet or foil as defined in claim 37 wherein said monomers are 4,4'-diaminodiphenyl ether and pyromellitic dianhydride.
Claim 43
Dependent Claim
18 words
The film, sheet or foil as in claim 37 wherein the monomers are p-phenylene diamine and pyromellitic dianhydride.
Claim 44
Dependent Claim
17 words
The film, sheet or foil as defined in claim 28 wherein said coating is an aromatic polyamide-imide.
Claim 45
Dependent Claim
50 words
The film, sheet or foil as defined in claim 42 wherein said film, sheet or foil is maintained at a temperature between about 140° C. and 200° C. and the condensation polymer formed on the surface is the polyamide-amic acid which is subsequently heated to convert it to the polyamide-imide.
Claim 46
Dependent Claim
28 words
The film, sheet or foil as defined in claim 42 wherein said film, sheet or foil is maintained at a temperature between about 200° C. and 300° C.
Claim 47
Dependent Claim
21 words
The film, sheet or foil as defined in claim 42 wherein said monomers are 4,4'-diaminodiphenyl ether and trimellitic anhydride monoacid chloride.
Claim 48
Dependent Claim
21 words
The film, sheet or foil as defined in claim 42 wherein said monomers are p-phenylene diamine and trimellitic anhydride monoacid chloride.
Claim 49
Dependent Claim
35 words
The film, sheet or foil as defined in claim 28 wherein said coating is an aromatic polyhydrazide and said film, sheet or foil is maintained at a temperature between about 120° C. and 300° C.
Claim 50
Dependent Claim
26 words
The film, sheet or foil as defined in claim 47 wherein said monomers are the hydrazide of isophthalic acid and the diacid chloride of terephthalic acid.
Claim 51
Dependent Claim
43 words
An organic polymeric film having a gas-barrier coating thereon of an aromatic polyamide consisting essentially of units p-phenylene diamine and terephthalic acid having a density greater than about 1.42, a planar X-ray orientation and an electron microscope morphology of a coalesced particulate texture.
Claim 52
Dependent Claim
43 words
An organic polymeric film having a gas-barrier coating thereon of an aromatic polyamide consisting essentially of units p-phenylene diamine and terephthalic acid having a density greater than about 1.42, a planar X-ray orientation and an electron microscope morphology of a coalesced particulate texture.
Claim 53
Dependent Claim
23 words
The film as defined in claim 49 wherein the polymeric film is a polyimide film or a biaxially oriented, heat-set polyethylene terephthalate film.
Claim 54
Dependent Claim
35 words
A film, sheet or foil as defined in claim 28 wherein said coating is an aromatic polyamide-hydrazide and said film, sheet or foil is maintained at a temperature between about 100° C. and 300° C.
Claim 55
Dependent Claim
22 words
A film, sheet or foil as defined in claim 51 wherein said monomers are p-aminobenzhydrazide and the diacid chloride of terephthalic acid.
Claim 56
Dependent Claim
28 words
The film, sheet or foil as defined in claim 52 wherein said film, sheet or foil is a polyimide film or a biaxially oriented, heat-set polyethylene terephthalate film.
Claim 57
Dependent Claim
35 words
A film, sheet or foil as defined in claim 28 wherein said coating is an aromatic polyazomethine and said film, sheet or foil is maintained at a temperature between about 100° C. and 300° C.
Claim 58
Dependent Claim
19 words
A film, sheet or foil as defined in claim 54 wherein said monomers are p-phenylene diamine and terephthalyl aldehyde.
Claim 59
Dependent Claim
28 words
A film, sheet or foil as defined in claim 55 wherein said film, sheet or foil is a polyimide film or a biaxially oriented, heat-set polyethylene terephthalate film.
Claim 60
Dependent Claim
78 words
A substrate having a coating thereon of a polymer selected from the group consisting of aromatic polyamide, polyimide, polyamide-imide, polyhydrazide, polyamide-hydrazide and polyazomethine formed onto said substrate by the direct vapor-phase condensation polymerization of said polymer's respective monomers mixed in the vapor state and reacted in the presence of said substrate maintained above the critical minimum deposition temperature of said monomers but below about 300° C., said coating having a thickness between about 0.01 and about 0.6 mil.
Claim 61
Dependent Claim
78 words
A substrate having a coating thereon of a polymer selected from the group consisting of aromatic polyamide, polyimide, polyamide-imide, polyhydrazide, polyamide-hydrazide and polyazomethine formed onto said substrate by the direct vapor-phase condensation polymerization of said polymer's respective monomers mixed in the vapor state and reacted in the presence of said substrate maintained above the critical minimum deposition temperature of said monomers but below about 300° C., said coating having a thickness between about 0.01 and about 0.6 mil.
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) | 1982-12-24 | 1983-06-25 | 1983-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-24 | 1987-06-25 | 1987-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-24 | 1991-06-25 | 1991-12-25 | $7700.00 | Window Closed / Lapsed |