US5294487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite layered material containing a silicone resin substrate
Assignee: Japan Gore Tex Inc
•
Filing: 1993-02-10
•
Granted: 1994-03-15
•
Expires: 2013-02-10
Abstract
Abstract A composite material comprising a porous polymeric material bonded to a silicone resin substrate with a silicone-based adhesive agent, wherein only part of the pores of said porous material in the thickness direction thereof contain said silicone-based adhesive agent.
Inventors
- 👤 Kazuhiko Ohashi
- 👤 Sunao Fukutake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:14
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B5/00; B32B5/18; B01; B01D; B01D69/00; B01D69/12; B01D69/1214; B01D71/00; B01D71/06; B01D71/70; B01D71/701; B32B27/32; B32B27/322; B32B7/00; B32B7/04; B32B7/12; C; C01; C01B; C01B3/00; C01B3/50; C01B3/501; B32B2305/00; B32B2305/02; B32B2305/026; B32B2457/00; B32B2457/08; C01B2203/00; C01B2203/04; C01B2203/0405; C01B2203/0465; C01B2203/048; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249955; Y10T428/249958; Y10T428/249982; Y10T428/249985; Y10T428/31504; Y10T428/3154; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
89 words
A composite material comprising a layer of porous polymeric material having pores extending through the thickness of the layer, and being bonded to a layer of a silicone resin substrate by means of a silicone-based adhesive agent, wherein only part of the pores of said porous material in the thickness direction thereof contain said silicone-based adhesive agent; said layer or porous polymeric material having on its surface opposite the silicone resin substrate, a resin coating selected from the group consisting of fluororesin, epoxy resin, urethane resin and acrylic resin.
Claim 2
Dependent Claim
89 words
A composite material comprising a layer of porous polymeric material having pores extending through the thickness of the layer, and being bonded to a layer of a silicone resin substrate by means of a silicone-based adhesive agent, wherein only part of the pores of said porous material in the thickness direction thereof contain said silicone-based adhesive agent; said layer or porous polymeric material having on its surface opposite the silicone resin substrate, a resin coating selected from the group consisting of fluororesin, epoxy resin, urethane resin and acrylic resin.
Claim 3
Dependent Claim
28 words
The composite material of claim 1 wherein the porous polymeric material is selected from the class consisting of a porous fluororesin, a porous polyethylene, and a porous polypropylene.
Claim 4
Dependent Claim
14 words
The composite material of claim 1 wherein the porous polymeric material is porous polytetrafluoroethylene.
References Cited (Backward Citations)
US3486961A
Cited
US3607604A
Cited
US3874986A
Cited
US4194041A
Cited
US4350734A
Cited
JPS5781805A
Cited
US5024594A
Cited
US4681808A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-03-14 | 1997-09-13 | 1998-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-03-14 | 2001-09-13 | 2002-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-03-14 | 2005-09-13 | 2006-03-15 | $7700.00 | Window Closed / Lapsed |