Patent US4873140A successfully refreshed from Google Patents.
US4873140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Articles having low adhesion articles having coatings thereon
Assignee: 3M Co
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Filing: 1988-04-27
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Granted: 1989-10-10
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Expires: 2008-04-27
Abstract
Abstract A coated article with a substrate having a low surface energy coating thereon, said coating comprising an in situ polymerized monofunctional poly(perfluoropropyleneoxy) acrylate or methacrylate oligomer. The oligomer has a poly(perfluoropropyleneoxy) segment, [CF(CF 3 )CF 2 O] d , which has a number average molecular weight of about 800 to 25,000.
Inventors
- 👤 Daniel K. McIntyre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:35
CPC Classifications
C; C09; C09D; C09D4/00; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C09J; C09J7/00; C09J7/30; C09J7/38; C09J7/40; C09J7/401; C09J7/403; C08J2323/00; C08J2323/02; C08J2323/04; C08J2323/06; C08J2433/00; C09J2423/00; C09J2423/005; C09J2433/00; C09J2433/005; Y; Y10; Y10S; Y10S428/00; Y10S428/914; Y10T; Y10T428/00; Y10T428/28; Y10T428/2839; Y10T428/2843; Y10T428/31504; Y10T428/3154; Y10T428/31544
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
62 words
A coated article comprising a substrate having a low surface energy coating thereon, said coating comprising an in situ polymerized monofunctional poly(perfluoropropyleneoxy) acrylate or methacrylate oligomer, said oligomer having a poly(perfluoropropyleneoxy) segment, [CF(CF 3 )CF 2 O] d , having a number average molecular weight of about 1200 to 1,000 wherein d is a number having an average value of from 7-60.
Claim 2
Dependent Claim
62 words
A coated article comprising a substrate having a low surface energy coating thereon, said coating comprising an in situ polymerized monofunctional poly(perfluoropropyleneoxy) acrylate or methacrylate oligomer, said oligomer having a poly(perfluoropropyleneoxy) segment, [CF(CF 3 )CF 2 O] d , having a number average molecular weight of about 1200 to 1,000 wherein d is a number having an average value of from 7-60.
Claim 3
Dependent Claim
56 words
The coated article of claim 1 wherein said monofunctional poly(perfluoropropyleneoxy) acrylate or methacrylate oligomer can be represented by the formula ##STR3## wherein R f is a straight, branched, or cyclic perfluoroalkyl group having 1 to 5 carbon atoms, d is a number having an average value of from about 7-60, and R is hydrogen or methyl.
Claim 4
Dependent Claim
27 words
The coated article of claim 2 wherein said poly(perfluoropropyleneoxy) segment [CF(CF 3 )CF 2 O] d has a number average molecular weight of at least about 1600.
Claim 5
Dependent Claim
18 words
The coated article of claim 1 further comprising a primer layer between said substrate and said polymerized oligomer.
Claim 6
Dependent Claim
14 words
The coated article of claim 4 wherein said primer layer comprises polymerized hydantion hexacrylate.
Claim 7
Dependent Claim
42 words
The coated article of claim 1 wherein said substrate comprises a flexible fabric, paper, or polymeric film, said substrate has a first surface coated with said polymerized oligomer, and a second surface opposite said first surface having a pressure-sensitive adhesive bonded thereto.
Claim 8
Dependent Claim
13 words
The coated article of claim 6 wherein said adhesive comprises a silicone adhesive.
Claim 9
Dependent Claim
12 words
The coated article of claim 6 wherein said adhesive comprises a poly(dimethylsiloxane).
Claim 10
Dependent Claim
16 words
The coated article of claim 1 further comprising a pressure-sensitive adhesive coated over said polymerized oligomer.
Claim 11
Dependent Claim
13 words
The coated article of claim 9 wherein said adhesive comprises a silicone adhesive.
Claim 12
Dependent Claim
11 words
The coated article of claim 9 wherein said adhesive comprises poly(dimethylsiloxane).
Claim 13
Dependent Claim
68 words
A pressure-sensitive adhesive tape comprising a flexible substrate having a low surface energy coating on one surface thereof, said coating comprising an in situ polymerized monofunctional poly(perfluoropropyleneoxy) acrylate or methacrylate oligomer, the poly(perfluoropropyleneoxy) segments of which have a number average molecular weight of about 1200 to 10,000, and said substrate having a pressure-sensitive adhesive on the second surface of said substrate opposite said low surface energy coated surface.
Claim 14
Dependent Claim
68 words
A pressure-sensitive adhesive tape comprising a flexible substrate having a low surface energy coating on one surface thereof, said coating comprising an in situ polymerized monofunctional poly(perfluoropropyleneoxy) acrylate or methacrylate oligomer, the poly(perfluoropropyleneoxy) segments of which have a number average molecular weight of about 1200 to 10,000, and said substrate having a pressure-sensitive adhesive on the second surface of said substrate opposite said low surface energy coated surface.
Claim 15
Dependent Claim
14 words
The pressure-sensitive adhesive tape of claim 12 wherein said adhesive comprises a silicone adhesive.
Claim 16
Dependent Claim
59 words
A pressure-sensitive transfer tape comprising a flexible substrate having a low surface energy coating on at least one surface thereof, said coating comprising an in situ polymerized monofunctional poly(perfluoropropyleneoxy) acrylate or methacrylate oligomer, the poly(perfluoropropyleneoxy) segments of which have a number average molecular weight of about 1200 to 10,000, and a pressure-sensitive adhesive on at least one coated surface.
Claim 17
Dependent Claim
59 words
A pressure-sensitive transfer tape comprising a flexible substrate having a low surface energy coating on at least one surface thereof, said coating comprising an in situ polymerized monofunctional poly(perfluoropropyleneoxy) acrylate or methacrylate oligomer, the poly(perfluoropropyleneoxy) segments of which have a number average molecular weight of about 1200 to 10,000, and a pressure-sensitive adhesive on at least one coated surface.
Claim 18
Dependent Claim
24 words
The transfer tape of claim 14 wherein both surfaces of said substrate have said coating thereon and one coated surface carries a pressure-sensitive adhesive.
Claim 19
Dependent Claim
14 words
The transfer tape of claim 14 wherein said pressure-sensitive adhesive comprises a silicone adhesive.
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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) | 1992-10-09 | 1993-04-10 | 1993-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-09 | 1997-04-10 | 1997-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-09 | 2001-04-10 | 2001-10-10 | $7700.00 | Window Closed / Lapsed |