US5026591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated products and methods for making
Assignee: W.L. Gore and Associates Inc
•
Filing: 1989-04-14
•
Granted: 1991-06-25
•
Expires: 2009-04-14
Abstract
Abstract A coated product is provided and is comprised of a substrate and a coating comprised of a microporous scaffold having a high void volume and of open, interconnecting microstructure, the void being substantially filled with a chemical substance. The coating can be used by itself, or it can usefully be affixed to a wide variety of substrates. A method of making such products is also provided.
Inventors
- 👤 Robert L. Henn
- 👤 Carol H. Morell
- 👤 Edward J. Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:08
CPC Classifications
B; B01; B01D; B01D69/00; B01D69/14; B01D69/141; B01D69/1411; B01D69/10; B01D69/107; B01D69/1071; D; D06; D06N; D06N3/00; D06N3/0086; D06N3/0095; D06N3/04; D06N3/047; D06N3/12; D06N3/14; H; H05; H05K; H05K3/00; H05K3/22; H05K3/28; H05K3/285; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24826; Y10T428/249921; Y10T428/249953; Y10T428/249978; Y10T428/24998; Y10T428/31504; Y10T428/3154; Y10T428/31544
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
136 words
An article of manufacture comprising: (a) a substrate comprising a fabric having an irregular surface profile and (b) a preformed, continuous coating which comprises (i) a microporous scaffold material comprised of a microporous polymer selected from the class consisting of plastics and elastomers having a microstructure of interconnecting voids and a void volume of greater than 40% and (ii) a chemical substance comprising a thermoplastic or thermosetting resin. said chemical substance being incorporated into the void spaces of said microporous scaffold material and substantially filling the void spaces; said coating being affixed to at least one face of said fabric substrate by adherence of the chemical substance to the substrate at specific points of contact between the coating and the irregular surface of the fabric substrate; the thickness of the coating being less than 35 microns.
Claim 2
Dependent Claim
136 words
An article of manufacture comprising: (a) a substrate comprising a fabric having an irregular surface profile and (b) a preformed, continuous coating which comprises (i) a microporous scaffold material comprised of a microporous polymer selected from the class consisting of plastics and elastomers having a microstructure of interconnecting voids and a void volume of greater than 40% and (ii) a chemical substance comprising a thermoplastic or thermosetting resin. said chemical substance being incorporated into the void spaces of said microporous scaffold material and substantially filling the void spaces; said coating being affixed to at least one face of said fabric substrate by adherence of the chemical substance to the substrate at specific points of contact between the coating and the irregular surface of the fabric substrate; the thickness of the coating being less than 35 microns.
Claim 3
Dependent Claim
15 words
The article of claim 1 in which a second substrate is affixed to said coating.
Claim 4
Dependent Claim
17 words
The article of claim 1 in which the scaffold has a void volume of greater than 70%.
Claim 5
Dependent Claim
15 words
The article of claim 3 in which a second substrate is affixed to said coating.
Claim 6
Dependent Claim
17 words
The article of claim 1 in which the scaffold has a void volume of greater than 85%.
Claim 7
Dependent Claim
15 words
The article of claim 5 in which a second substrate is affixed to said coating.
Claim 8
Dependent Claim
18 words
The article of claim 1 in which the scaffold material has a thickness of less than 20 microns.
Claim 9
Dependent Claim
18 words
The article of claim 2 in which the scaffold material has a thickness of less than 20 microns.
Claim 10
Dependent Claim
18 words
The article of claim 3 in which the scaffold material has a thickness of less than 20 microns.
Claim 11
Dependent Claim
18 words
The article of claim 4 in which the scaffold material has a thickness of less than 20 microns.
Claim 12
Dependent Claim
18 words
The article of claim 5 in which the scaffold material has a thickness of less than 20 microns.
Claim 13
Dependent Claim
18 words
The article of claim 6 in which the scaffold material has a thickness of less than 20 microns.
Claim 14
Dependent Claim
12 words
The article of claim 1 in which the scaffold material is PTFE.
Claim 15
Dependent Claim
13 words
The article of claim 1 in which the scaffold material is expanded PRFE.
Claim 16
Dependent Claim
11 words
The article of claim 1 in which the scaffold is polypropylene.
Claim 17
Dependent Claim
11 words
The article of claim 1 in which the scaffold is polyethylene.
Claim 18
Dependent Claim
25 words
The article of claim 1 in which the scaffold is selected from the group: polyamide, polycarbonate, polycarbonate, poly(ethylene terephthalate), polyester, polyacrylate, polystyrene, polysufone, and polyurethane.
Claim 19
Dependent Claim
12 words
The article of claim 1 in which the fabric substrate is non-woven.
Claim 20
Dependent Claim
12 words
The article of claim 1 in which the fabric substrate is woven.
Claim 21
Dependent Claim
14 words
The article of claim 1 in which the chemical substance is a permselective polymer.
Claim 22
Dependent Claim
15 words
The article of claim 1 in which the chemical substance is a perfluorosulphonic acid polymer.
Claim 23
Dependent Claim
16 words
An article of claim 1 in which both faces of said substrate are affixed to coatings.
Claim 24
Dependent Claim
23 words
An article of manufacture comprising a muliplicity of layers, each said layer comprising a substrate and a coating defined as in claim 1.
Claim 25
Independent Claim
71 words
A method for making a coated product comprising: (a) incorporating a precursor of a chemical substance comprising a thermoplastic or thermosetting resin into the void spaces in a microporous scaffold material, and (b) affixing the scaffold material obtained in step a to a fabric substrate, said fabric having an irregular surface profile, in a manner that results in the scaffold material contacting the fabric substrate only at certain points of contact.
Claim 26
Independent Claim
71 words
A method for making a coated product comprising: (a) incorporating a precursor of a chemical substance comprising a thermoplastic or thermosetting resin into the void spaces in a microporous scaffold material, and (b) affixing the scaffold material obtained in step a to a fabric substrate, said fabric having an irregular surface profile, in a manner that results in the scaffold material contacting the fabric substrate only at certain points of contact.
References Cited (Backward Citations)
FR1241228A
Cited
GB1213283A
Cited
GB1254933A
Cited
GB1310460A
Cited
US3953566A
Cited
US4187390A
Cited
GB1339207A
Cited
GB1493822A
Cited
US3941633A
Cited
US4133927A
Cited
GB2024100A
Cited
US4194041A
Cited
US4344999A
Cited
US4547423A
Cited
US4539255A
Cited
US4443511A
Cited
GB2131678A
Cited
US4636424A
Cited
US4532316A
Cited
EP0184392A2
Cited
US4613544A
Cited
US4692369A
Cited
EP0211505A2
Cited
EP0238014A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-06-24 | 1994-12-24 | 1995-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-06-24 | 1998-12-24 | 1999-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-06-24 | 2002-12-24 | 2003-06-25 | $7700.00 | Window Closed / Lapsed |