US5409777A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminates of polymer shaving perfluorocyclobutane rings
Assignee: Dow Chemical Co
•
Filing: 1993-06-15
•
Granted: 1995-04-25
•
Expires: 2013-06-15
Abstract
Abstract A laminate has at least two layers, at least one of which comprises a polymer having more than one perfluorocyclobutane group. Such polymers impart qualities of enviornmental or protection, chemical and solvent resistance, hydrolytic stability, lubricity, low dielectric, hydrostatic stability, weatherability, flame resistance, chemical resistance, hydrolytic stability, lubricity, environmental protection, scratch resistance, solvent resistance, surface passivation, water repellancy, lower surface refractive index, lower surface coefficient of friction, fluid barrier properties, oil repellancy, thermal stability, and/or reduced moisture pick-up. Additionally, the coatings are optically clear, easy to apply either neat, in a solvent or otherwise, have relatively low cure temperatures for their temperature resistance, and exhibit insulating and planarizing capabilities.
Inventors
- 👤 Alvin P. Kennedy
- 👤 Larry D. Bratton
- 👤 Zdravko Jezic
- 👤 Eckel R. Lane
- 👤 Donald J. Perettie
- 👤 W. Frank Richey
- 👤 David B. Babb
- 👤 Katherine S. Clement
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:06
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C09; C09D; C09D127/00; C09D127/02; C09D127/12; C09D157/00; C09D157/06; C09D157/08; C10; C10M; C10M105/00; C10M105/50; C10M105/54; C10M107/00; C10M107/38; H; H01; H01G; H01G4/00; H01G4/002; H01G4/018; H01G4/06; H01G4/14; H01G4/18; C08J2327/00; C08J2327/02; C08J2327/12; Y; Y10; Y10S; Y10S428/00; Y10S428/901; Y10S428/922; Y10S428/9335; Y10S428/934; Y10T; Y10T428/00; Y10T428/13; Y10T428/131; Y10T428/16; Y10T428/29; Y10T428/31504; Y10T428/3154; Y10T428/31551; Y10T428/31554; Y10T428/31558; Y10T428/31565; Y10T428/31573; Y10T428/31598; Y10T428/31601; Y10T428/31652; Y10T428/31667; Y10T428/31678; Y10T428/31692; Y10T428/31725; Y10T428/31739; Y10T428/31743; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/3192
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
55 words
A laminate having at least two layers at least one of which comprises a matrix phase based on a polymer characterized by having more than one perfluorocyclobutane ring or an interpolymer of at least one compound having at least one perfluorocyclobutane ring and at least two functional groups reactive with di- or poly, functional compounds.
Claim 2
Dependent Claim
55 words
A laminate having at least two layers at least one of which comprises a matrix phase based on a polymer characterized by having more than one perfluorocyclobutane ring or an interpolymer of at least one compound having at least one perfluorocyclobutane ring and at least two functional groups reactive with di- or poly, functional compounds.
Claim 3
Dependent Claim
20 words
The laminate of claim 1 wherein the polymer has a backbone comprising perfluorocyclobutane groups, linking structures and hydrocarbon containing groups.
Claim 4
Dependent Claim
88 words
The laminate of claim 2 wherein the polymer is formed from at least one monomer having a structure represented by Formula 1 or II: ##STR2## wherein R represents an unsubstituted or inertly substituted group; each X is independently a bond or any group which links R and a perfluorovinyl group; m+1 is the number of --X--CF═CF 2 units; n and n' are the number of G and G' groups, respectively; and G and G' independently represent any reactive functional groups or any groups convertible into reactive functional groups.
Claim 5
Dependent Claim
18 words
The laminate of claim 3 wherein the polymer has an average molecular weight of at least about 10,000.
Claim 6
Dependent Claim
21 words
The laminate of claim 3 comprising at least one layer of the polymer and at least one reinforcing or filling layer.
Claim 7
Dependent Claim
35 words
The laminate of claim 3 comprising at least one layer of the polymer and at least one other layer, hereinafter referred to as second layer, having a composition different from the layer of the polymer.
Claim 8
Dependent Claim
57 words
The laminate of claim 6 wherein the second layer comprises a material from the group consisting of wood, clay, stone, silicon, silicon oxide, germanium arsenide, barium ferrite, alloy of chromium and at least one other metal, metal, semiconductor, polymer of different composition, ceramic, glass, ceramitized glass, optical fiber, paper, synthetic fibers, cloth, fiber mat, or combinations thereof.
Claim 9
Dependent Claim
32 words
The laminate of claim 6 wherein the polymer forms a coating which is an environmentally protective, moisture resistant, hydrolytically stable, hydrostatically stable, radiation resistant or chemically resistant coating on the second layer.
Claim 10
Dependent Claim
46 words
The laminate of claim 6 wherein the laminate is in the structural form of carpet, tub, bathtub, shower, tile, swimming pool liner, siding, roofing, sleeping bag, sail, raincoat, protective clothing, mattress, furniture, drapery, pillow, toy, tent, camper, refrigerator, cookware, utensil for coated cookware, or combination thereof.
Claim 11
Dependent Claim
27 words
The laminate of claim 3 wherein the laminate is formed by segregation of the polymer from a material having a different composition from that of the polymer.
Claim 12
Dependent Claim
85 words
The laminate of claim 14 wherein the polymer having more than one perfluorocyclobutane group segregates from the material having a different composition such that it imparts thereto increased flame resistance, chemical resistance, hydrolytic stability, lubricity, environmental protection, scratch resistance, solvent resistance, surface passivation, water repellancy, lower surface refractive index, lower surface coefficient of friction, fluid barrier properties, oil repellancy, thermal stability, or reduced moisture pick-up over the same property the material would have in the absence of the polymer having more than one perfluorocyclobutane group.
Claim 13
Dependent Claim
47 words
The laminate of claim 3 wherein the polymer having more than one perfluorocyclobutane group imparts to the second layer of the laminate an increased flame resistance over the flame resistance the second layer would have in the absence of the polymer having more than one perfluorocyclobutane group.
Claim 14
Dependent Claim
20 words
The laminate of claim 3 wherein the polymer contains a material having a composition different from that of the polymer.
Claim 15
Dependent Claim
25 words
The laminate of claim 6 wherein the laminate is in the structural form of lined pipe, valve liner, a seal, a gasket, or combination thereof.
Claim 16
Dependent Claim
37 words
The laminate of claim 6 wherein the laminate is radiation or heat resistant and in the form of medical equipment, sick room equipment, medical or other clothing, bed linen, an instrument, ignition resistant paint, or combination thereof.
Claim 17
Dependent Claim
33 words
The laminate of claim 6 wherein the laminate has optical clarity and is in the form of eyeglasses, a window, coated glass, greenhouse, skylight, oven window, solar still, UV filter or combination thereof.
Claim 18
Dependent Claim
34 words
The laminate of claim 6 wherein the laminate is in the structural form of material with anti-fouling coating, object with underwater insulation, object with electrical insulation, object with mildew resistant coating, or combination thereof.
Claim 19
Dependent Claim
36 words
The laminate of claim 6 wherein the laminate is in the form of an automobile body part, vessel, mold, turbine blade, tub, food processing equipment, cryogenic container, autoclave, oven, heat exchanger, fuel container, or combination thereof.
Claim 20
Dependent Claim
37 words
The laminate of claim 6 wherein the polymer is a dielectric or insulator and the laminate is in the form of an electrical switch enclosure, battery, battery separator; photographic, X-ray, or other imaging film; or combination thereof.
Claim 21
Dependent Claim
22 words
The laminate of claim 6 wherein the laminate is microwavable including and in the form of cookware, popcorn bag, autoclave or container.
Claim 22
Dependent Claim
32 words
The laminate of claim 20 wherein the laminate is heat resistant and in the form of packaging, a roasting bag, popcorn bag, boiling bag, frozen food tray, retortable pouch, or combination thereof.
References Cited (Backward Citations)
US3114778A
Cited
US2404374A
Cited
US2671799A
Cited
US2848504A
Cited
US2958685A
Cited
US2982786A
Cited
US2922823A
Cited
US3022356A
Cited
US3316312A
Cited
US3111509A
Cited
US3277068A
Cited
US3303145A
Cited
US3310606A
Cited
FR1481730A
Cited
GB1126554A
Cited
US3549606A
Cited
US4154753A
Cited
US3505411A
Cited
GB1185564A
Cited
US3682876A
Cited
US3696154A
Cited
US3926989A
Cited
US3900380A
Cited
US3840603A
Cited
US4423929A
Cited
DE3024018A1
Cited
US4377711A
Cited
WO1986002072A1
Cited
EP0303292A2
Cited
US5023380A
Cited
US5066746A
Cited
WO1990015044A2
Cited
WO1990015082A1
Cited
US5021602A
Cited
WO1990015043A2
Cited
US5037917A
Cited
US5210265A
Cited
US5037919A
Cited
WO1990015042A2
Cited
US5162468A
Cited
US5159037A
Cited
US5159038A
Cited
US5159036A
Cited
US5037918A
Cited
US5246782A
Cited
US5198813A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-04-24 | 1998-10-24 | 1999-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-04-24 | 2002-10-24 | 2003-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-04-24 | 2006-10-24 | 2007-04-25 | $7700.00 | Window Closed / Lapsed |