US4332698A
Expired / Lapsed
US
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Catalyst sheet and preparation
Assignee: ERGENICS Inc A NJ CORP
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Filing: 1981-01-19
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Granted: 1982-06-01
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Expires: 2001-01-19
Abstract
Abstract A catalyst composition is provided as a thin flexible sheet in standard polymer processing equipment. The catalyst is comprised of catalyst particles encradled in a porous, fiber-containing polymeric material.
Inventors
- 👤 Philip Bernstein
- 👤 James P. Coffey
- 👤 Alan E. Varker
- 👤 John T. Arms
- 👤 William D. K. Clark
- 👤 Paul D. Goodell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:46
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/02; B01J31/06; B01J31/068; B01J31/26; B01J35/00; B01J35/50; B01J35/58
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
76 words
A catalyst composition said composition being in the form of a sheet comprising a catalyst material encradled in a porous, fiber-containing polymeric material, said polymeric material comprising a fibrillated first polymer and a support-contributing polymer, and said polymeric material having porosity therethrough, and said composition being developed from a catalyst material, a fibrillatable first polymer, a support-contributing second polymer and a major amount of a removable pore-former, said porosity being developed on removal of the pore-former.
Claim 2
Dependent Claim
76 words
A catalyst composition said composition being in the form of a sheet comprising a catalyst material encradled in a porous, fiber-containing polymeric material, said polymeric material comprising a fibrillated first polymer and a support-contributing polymer, and said polymeric material having porosity therethrough, and said composition being developed from a catalyst material, a fibrillatable first polymer, a support-contributing second polymer and a major amount of a removable pore-former, said porosity being developed on removal of the pore-former.
Claim 3
Dependent Claim
24 words
A catalyst composition in accordance with claim 1, characterized in that the pore-former is capable of wetting the catalyst material on being mixed therewith.
Claim 4
Dependent Claim
29 words
A catalyst composition in accordance with claim 1, characterized in that the pore-former prior to removal is present in an amount of about 15 to about 50 weight percent.
Claim 5
Dependent Claim
24 words
A catalyst composition in accordance with claim 1, characterized in that it is comprised by weight of at least about 50% catalytically active particles.
Claim 6
Dependent Claim
16 words
A catalyst composition in accordance with claim 1, characterized in that the pore-former comprises a polymer.
Claim 7
Dependent Claim
32 words
A catalyst composition according to claim 1, characterized in that the active catalyst comprises at least one of nickel, cobalt, molybdenum, copper, silver, platinum group metals, and compounds, alloys and mixtures thereof.
Claim 8
Dependent Claim
27 words
A catalyst composition according to claim 1, characterized in that the support-contributing polymer comprises a thermoplastic resin and the fibrillatable polymer comprises polypropylene or a halogenated polyolefin.
Claim 9
Dependent Claim
18 words
A catalyst composition according to claim 7, characterized in that the removable pore-former comprises a water-soluble polyolefin oxide.
Claim 10
Dependent Claim
16 words
A catalyst composition according to claim 1, characterized in that the sheet is thin and flexible.
Claim 11
Dependent Claim
27 words
A catalyst composition according to claim 1, characterized in that the catalyst is a thin, coherent sheet having a thickness of about 1 to about 10 mils.
Claim 12
Dependent Claim
36 words
A catalyst composition according to claim 1, characterized in that it is comprised, by weight, of about 50% to about 75% catalyst material, about 1% to about 5% fibrillated polymer, and the balance essentially support-contributing polymer.
Claim 13
Independent Claim
69 words
A method of preparing a catalyst composition, said catalyst composition being in the form of a thin, porous, flexible sheet, comprising subjecting a catalyst material, a fibrillatable first polymer, a support-contributing second polymer, and a major amount of removable pore-former to conditions to convert the fibrillatable polymer to fibers, and to mix intimately said components, processing the resultant fibrillated polymeric material into sheet form, and then removing the pore-former.
Claim 14
Independent Claim
69 words
A method of preparing a catalyst composition, said catalyst composition being in the form of a thin, porous, flexible sheet, comprising subjecting a catalyst material, a fibrillatable first polymer, a support-contributing second polymer, and a major amount of removable pore-former to conditions to convert the fibrillatable polymer to fibers, and to mix intimately said components, processing the resultant fibrillated polymeric material into sheet form, and then removing the pore-former.
Claim 15
Dependent Claim
24 words
A method according to claim 12, characterized in that the fibrillatable first polymer is converted to fibrous form in-situ by a dry processing technique.
Claim 16
Dependent Claim
22 words
A method according to claim 12, characterized in that the catalyst material is produced in sheet form in standard polymer processing equipment.
Claim 17
Dependent Claim
25 words
A method according to claim 12, characterized in that the resulting porosity after removal of the pore-former is interconnecting and dispersed throughout the catalyst composition.
Claim 18
Dependent Claim
21 words
A method according to claim 14, characterized in that the equipment is a roll-type mill, an extruder or a molding apparatus.
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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) | 1985-05-31 | 1985-11-30 | 1986-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-31 | 1989-11-30 | 1990-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-31 | 1993-11-30 | 1994-06-01 | $7700.00 | Window Closed / Lapsed |