US4861644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printed microporous material
Assignee: PPG Industries Ohio Inc
•
Filing: 1988-08-30
•
Granted: 1989-08-29
•
Expires: 2008-08-30
Abstract
Abstract Microporous material substrate comprising (1) a matrix consisting essentially of linear ultrahigh molecular weight polyolefin, (2) a large proportion of finely divided water-insoluble siliceous filler, and (3) interconnecting pores is printed with printing ink.
Inventors
- 👤 James Young
- 👤 Dennis D. Leatherman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:54
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/06; B; B29; B29C; B29C55/00; B29C55/005; B41; B41M; B41M1/00; B41M1/26; B41M1/30; B41M5/00; B41M5/50; B41M5/502; B41M5/508; B41M5/52; C08K; C08K3/00; C08K3/34; C08K3/36; C08L2205/00; C08L2205/02; C08L2207/00; C08L2207/06; C08L2207/068; C08L23/10; C08L91/00; Y; Y10; Y10S; Y10S428/00; Y10S428/91; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24893; Y10T428/24901; Y10T428/249921; Y10T428/249953; Y10T428/249986
Claims Analysis
Total Claims: 66
Claim 1
Independent Claim
153 words
Printed microporous material comprising: (a) a microporous material substrate having at least one surface and comprising: (1) a matrix consisting essentially of essentially linear ultrahigh molecular weight polyolefin which is essentially linear ultrahigh molecular weight polyethylene having an intrinsic viscosity of at least about 18 deciliters/gram, essentially linear ultrahigh molecular weight polypropylene having an intrinsic viscosity of at least about 6 deciliters/gram, or a mixture thereof, (2) finely divided particulate substantially water-insoluble siliceous filler distributed throughout said matrix, said filler constituting from about 50 percent to about 90 percent by weight of said microporous material substrate, and (3) a network of interconnecting pores communicating throughout said microporous material substrate, said pores constituting at least about 35 percent by volume of said microporous material substrate, and (b) printing ink on at least a portion of said surface in the form of indicia, one or more patterns, one or more designs, or a combination thereof.
Claim 2
Dependent Claim
153 words
Printed microporous material comprising: (a) a microporous material substrate having at least one surface and comprising: (1) a matrix consisting essentially of essentially linear ultrahigh molecular weight polyolefin which is essentially linear ultrahigh molecular weight polyethylene having an intrinsic viscosity of at least about 18 deciliters/gram, essentially linear ultrahigh molecular weight polypropylene having an intrinsic viscosity of at least about 6 deciliters/gram, or a mixture thereof, (2) finely divided particulate substantially water-insoluble siliceous filler distributed throughout said matrix, said filler constituting from about 50 percent to about 90 percent by weight of said microporous material substrate, and (3) a network of interconnecting pores communicating throughout said microporous material substrate, said pores constituting at least about 35 percent by volume of said microporous material substrate, and (b) printing ink on at least a portion of said surface in the form of indicia, one or more patterns, one or more designs, or a combination thereof.
Claim 3
Dependent Claim
32 words
The printed microporous material of claim 1 wherein said essentially linear ultrahigh molecular weight polyolefin is essentially linear ultrahigh molecular weight polyethylene having an intrinsic viscosity of at least about 18 deciliters/gram.
Claim 4
Dependent Claim
16 words
The printed microporous material of claim 2 wherein high density polyethylene is present in said matrix.
Claim 5
Dependent Claim
23 words
The printed microporous material of claim 2 wherein said pores constitute at least about 60 percent by volume of said microporous material substrate.
Claim 6
Dependent Claim
28 words
The printed microporous material of claim 2 wherein said ultrahigh molecular weight polyethylene has an intrinsic viscosity in the range of from about 18 to about 39 deciliters/gram.
Claim 7
Dependent Claim
26 words
The printed microporous material of claim 2 wherein said filler constitutes from about 50 percent to about 85 percent by weight of said microporous material substrate.
Claim 8
Dependent Claim
12 words
The printed microporous material of claim 2 wherein said filler is silica.
Claim 9
Dependent Claim
13 words
The printed microporous material of claim 2 wherein said filler is precipitated silica.
Claim 10
Dependent Claim
23 words
The printed microporous material of claim 8 wherein said precipitated silica has an average ultimate particle size of less than about 0.1 micrometer.
Claim 11
Dependent Claim
32 words
The printed microporous material of claim 2 wherein the volume average diameter of said pores as determined by mercury porosimetry is in the range of from about 0.02 to about 50 micrometers.
Claim 12
Dependent Claim
32 words
The printed microporous material of claim 2 wherein the volume average diameter of said pores as determined by mercury porosimetry is in the range of from about 0.02 to about 0.5 micrometers.
Claim 13
Dependent Claim
16 words
The printed microporous material of claim 2 wherein said printing ink is a lithographic printing ink.
Claim 14
Dependent Claim
17 words
The printed microporous material of claim 2 wherein said printing ink is an offset lithographic printing ink.
Claim 15
Dependent Claim
16 words
The printed microporous material of claim 2 wherein said printing ink is a letterpress printing ink.
Claim 16
Dependent Claim
18 words
The printed microporous material of claim 2 wherein said printing ink is a water-based ink jet printing ink.
Claim 17
Dependent Claim
28 words
The printed microporous material of claim 15 wherein said ink jet printing ink is on a portion of said surface in the form of a bar code pattern.
Claim 18
Independent Claim
135 words
A method for producing printed microporous material comprising printing printing ink upon at least one surface of a microporous material substrate wherein said microporous material substrate comprises: (a) a matrix consisting essentially of essentially linear ultrahigh molecular weight polyolefin which is essentially linear ultrahigh molecular weight polyethylene having an intrinsic viscosity of at least about 18 deciliters/gram, essentially linear ultrahigh molecular weight polypropylene having an intrinsic viscosity of at least about 6 deciliters/gram, or a mixture thereof, (b) finely divided particulate substantially water-insoluble siliceous filler distributed throughout said matrix, said filler constituting from about 50 percent to about 90 percent by weight of said microporous material substrate, and (c) a network of interconnecting pores communicating throughout said microporous material substrate, said pores constituting at least about 35 percent by volume of said microporous material substrate.
Claim 19
Independent Claim
135 words
A method for producing printed microporous material comprising printing printing ink upon at least one surface of a microporous material substrate wherein said microporous material substrate comprises: (a) a matrix consisting essentially of essentially linear ultrahigh molecular weight polyolefin which is essentially linear ultrahigh molecular weight polyethylene having an intrinsic viscosity of at least about 18 deciliters/gram, essentially linear ultrahigh molecular weight polypropylene having an intrinsic viscosity of at least about 6 deciliters/gram, or a mixture thereof, (b) finely divided particulate substantially water-insoluble siliceous filler distributed throughout said matrix, said filler constituting from about 50 percent to about 90 percent by weight of said microporous material substrate, and (c) a network of interconnecting pores communicating throughout said microporous material substrate, said pores constituting at least about 35 percent by volume of said microporous material substrate.
Claim 20
Dependent Claim
30 words
The method of claim 17 wherein said essentially linear ultrahigh molecular weight polyolefin is essentially linear ultrahigh molecular weight polyethylene having an intrinsic viscosity of at least about 18 deciliters/gram.
Claim 21
Dependent Claim
14 words
The method of claim 18 wherein high density polyethylene is present in said matrix.
Claim 22
Dependent Claim
21 words
The method of claim 18 wherein said pores constitute at least about 60 percent by volume of said microporous material substrate.
Claim 23
Dependent Claim
26 words
The method of claim 18 wherein said ultrahigh molecular weight polyethylene has an intrinsic viscosity in the range of from about 18 to about 39 deciliters/gram.
Claim 24
Dependent Claim
24 words
The method of claim 18 wherein said filler constitutes from about 50 percent to about 85 percent by weight of said microporous material substrate.
Claim 25
Dependent Claim
10 words
The method of claim 18 wherein said filler is silica.
Claim 26
Dependent Claim
11 words
The method of claim 18 wherein said filler is precipitated silica.
Claim 27
Dependent Claim
21 words
The method of claim 24 wherein said precipitated silica has an average ultimate particle size of less than about 0.1 micrometer.
Claim 28
Dependent Claim
30 words
The method of claim 18 wherein the volume average diameter of said pores as determined by mercury porosimetry is in the range of from about 0.02 to about 50 micrometers.
Claim 29
Dependent Claim
30 words
The method of claim 18 wherein the volume average diameter of said pores as determined by mercury porosimetry is in the range of from about 0.02 to about 0.5 micrometers.
Claim 30
Dependent Claim
22 words
The method of claim 18 wherein said printing is accomplished by lithography and wherein said printing ink is a lithographic printing ink.
Claim 31
Dependent Claim
24 words
The method of claim 18 wherein said printing is accomplished by offset lithography and wherein said printing ink is an offset lithographic printing ink.
Claim 32
Dependent Claim
23 words
The method of claim 18 wherein said printing is accomplished by letterpress printing and wherein said printing ink is a letterpress printing ink.
Claim 33
Dependent Claim
26 words
The method of claim 18 wherein said printing is accomplished by ink jet printing and wherein said printing ink is a water-based ink jet printing ink.
Claim 34
Dependent Claim
28 words
The method of claim 31 wherein said ink jet printing ink is printed upon said surface of said microporous material substrate in the form of a bar code.
Claim 35
Dependent Claim
155 words
Printed microporous material comprising: (a) a microporous material substrate having at least one surface and comprising: (1) a matrix consisting essentially of essentially linear ultrahigh molecular weight polyolefin which is essentially linear ultrahigh molecular weight polyethylene having an intrinsic viscosity of at least about 18 deciliters/gram, essentially linear ultrahigh molecular weight polypropylene having an intrinsic viscosity of at least about 6 deciliters/gram, or a mixture thereof, (2) finely divided particulate substantially water-insoluble siliceous filler distributed throughout said matrix, said filler constituting from about 50 percent to about 90 percent by weight of said microporous material substrate, and (3) a network of interconnecting pores communicating throughout said microporous material substrate, said pores constituting from about 35 to about 80 percent by volume of said microporous material substrate, and (b) printing ink on at least a portion of said surface in the form of indicia, one or more patterns, one or more designs, or a combination thereof.
Claim 36
Dependent Claim
155 words
Printed microporous material comprising: (a) a microporous material substrate having at least one surface and comprising: (1) a matrix consisting essentially of essentially linear ultrahigh molecular weight polyolefin which is essentially linear ultrahigh molecular weight polyethylene having an intrinsic viscosity of at least about 18 deciliters/gram, essentially linear ultrahigh molecular weight polypropylene having an intrinsic viscosity of at least about 6 deciliters/gram, or a mixture thereof, (2) finely divided particulate substantially water-insoluble siliceous filler distributed throughout said matrix, said filler constituting from about 50 percent to about 90 percent by weight of said microporous material substrate, and (3) a network of interconnecting pores communicating throughout said microporous material substrate, said pores constituting from about 35 to about 80 percent by volume of said microporous material substrate, and (b) printing ink on at least a portion of said surface in the form of indicia, one or more patterns, one or more designs, or a combination thereof.
Claim 37
Dependent Claim
32 words
The printed microporous material of claim 33 wherein said essentially linear ultrahigh molecular weight polyolefin is essentially linear ultrahigh molecular weight polyethylene having an intrinsic viscosity of at least about 18 deciliters/grams.
Claim 38
Dependent Claim
16 words
The printed microporous material of claim 34 wherein high density polyethylene is present in said matrix.
Claim 39
Dependent Claim
25 words
The printed microporous material of claim 34 wherein said pores constitute from about 60 to about 75 percent by volume of said microporous material substrate.
Claim 40
Dependent Claim
28 words
The printed microporous material of claim 34 wherein said ultrahigh molecular weight polyethylene has an intrinsic viscosity in the range of from about 18 to about 39 deciliters/gram.
Claim 41
Dependent Claim
26 words
The printed microporous material of claim 34 wherein said filler constitutes from about 50 percent to about 85 percent by weight of said microporous material substrate.
Claim 42
Dependent Claim
12 words
The printed microporous material of claim 34 wherein said filler is silica.
Claim 43
Dependent Claim
13 words
The printed microporous material of claim 34 wherein said filler is precipitated silica.
Claim 44
Dependent Claim
23 words
The printed microporous material of claim 40 wherein said precipitated silica has an average ultimate particle size of less than about 0.1 micrometer.
Claim 45
Dependent Claim
32 words
The printed microporous material of claim 34 wherein the volume average diameter of said pores as determined by mercury porosimetry is in the range of from about 0.02 to about 0.5 micrometers.
Claim 46
Dependent Claim
16 words
The printed microporous material of claim 34 wherein said printing ink is a lithographic printing ink.
Claim 47
Dependent Claim
17 words
The printed microporous material of claim 34 wherein said printing ink is an offset lithographic printing ink.
Claim 48
Dependent Claim
16 words
The printed microporous material of claim 34 wherein said printing ink is a letterpress printing ink.
Claim 49
Dependent Claim
18 words
The printed microporous material of claim 34 wherein said printing ink is a water-based ink jet printing ink.
Claim 50
Dependent Claim
28 words
The printed microporous material of claim 46 wherein said ink jet printing ink is on a portion of said surface in the form of a bar code pattern.
Claim 51
Independent Claim
137 words
A method for producing printed microporous material comprising printing printing ink upon at least one surface of a microporous material substrate wherein said microporous material substrate comprises: (a) a matrix consisting essentially of essentially linear ultrahigh molecular weight polyolefin which is essentially linear ultrahigh molecular weight polyethylene having an intrinsic viscosity of at least about 18 deciliters/gram, essentially linear ultrahigh molecular weight polypropylene having an intrinsic viscosity of at least about 6 deciliters/gram, or a mixture thereof, (b) finely divided particulate substantially water-insoluble siliceous filler distributed throughout said matrix, said filler constituting from about 50 percent to about 90 percent by weight of said microporous material substrate, and (c) a network of interconnecting pores communicating throughout said microporous material substrate, said pores constituting from about 35 to about 80 percent by volume of said microporous material substrate.
Claim 52
Independent Claim
137 words
A method for producing printed microporous material comprising printing printing ink upon at least one surface of a microporous material substrate wherein said microporous material substrate comprises: (a) a matrix consisting essentially of essentially linear ultrahigh molecular weight polyolefin which is essentially linear ultrahigh molecular weight polyethylene having an intrinsic viscosity of at least about 18 deciliters/gram, essentially linear ultrahigh molecular weight polypropylene having an intrinsic viscosity of at least about 6 deciliters/gram, or a mixture thereof, (b) finely divided particulate substantially water-insoluble siliceous filler distributed throughout said matrix, said filler constituting from about 50 percent to about 90 percent by weight of said microporous material substrate, and (c) a network of interconnecting pores communicating throughout said microporous material substrate, said pores constituting from about 35 to about 80 percent by volume of said microporous material substrate.
Claim 53
Dependent Claim
30 words
The method of claim 48 wherein said essentially linear ultrahigh molecular weight polyolefin is essentially linear ultrahigh molecular weight polyethylene having an intrinsic viscosity of at least about 18 deciliters/gram.
Claim 54
Dependent Claim
14 words
The method of claim 49 wherein high density polyethylene is present in said matrix.
Claim 55
Dependent Claim
23 words
The method of claim 49 wherein said pores constitute from about 60 to about 75 percent by volume of said microporous material substrate.
Claim 56
Dependent Claim
26 words
The method of claim 49 wherein said ultrahigh molecular weight polyethylene has an intrinsic viscosity in the range of from about 18 to about 39 deciliters/gram.
Claim 57
Dependent Claim
24 words
The method of claim 49 wherein said filler constitutes from about 50 percent to about 85 percent by weight of said microporous material substrate.
Claim 58
Dependent Claim
10 words
The method of claim 49 wherein said filler is silica.
Claim 59
Dependent Claim
11 words
The method of claim 49 wherein said filler is precipitated silica.
Claim 60
Dependent Claim
21 words
The method of claim 55 wherein said precipitated silica has an average ultimate particle size of less than about 0.1 micrometer.
Claim 61
Dependent Claim
30 words
The method of claim 49 wherein the volume average diameter of said pores as determined by mercury porosimetry is in the range of from about 0.02 to about 0.5 micrometers.
Claim 62
Dependent Claim
22 words
The method of claim 49 wherein said printing is accomplished by lithography and wherein said printing ink is a lithographic printing ink.
Claim 63
Dependent Claim
24 words
The method of claim 49 wherein said printing is accomplished by offset lithography and wherein said printing ink is an offset lithographic printing ink.
Claim 64
Dependent Claim
23 words
The method of claim 49 wherein said printing is accomplished by letterpress printing and wherein said printing ink is a letterpress printing ink.
Claim 65
Dependent Claim
26 words
The method of claim 49 wherein said printing is accomplished by ink jet printing and wherein said printing ink is a water-based ink jet printing ink.
Claim 66
Dependent Claim
28 words
The method of claim 61 wherein said ink jet printing ink is printed upon said surface of said microporous material substrate in the form of a bar code.
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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) | 1992-08-28 | 1993-02-27 | 1993-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-08-28 | 1997-02-27 | 1997-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-08-28 | 2001-02-27 | 2001-08-29 | $7700.00 | Window Closed / Lapsed |