US3248339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for manufacturing coarse grain porous formed bodies containing ion exchangers
Assignee: Wacker Chemie AG
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Filing: 1963-07-26
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Granted: 1966-04-26
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Expires: 1983-07-26
Abstract
No abstract record available.
Inventors
- 👤 Spes Hellmuth
- 👤 Kunstle Gerhard
- 👤 Altenschopfer Theodor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:13
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/20; C08J5/22; B; B01; B01J; B01J31/00; B01J31/02; B01J31/06; B01J31/08; B01J47/00; B01J47/018
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
PROCESS FOR MANUFACTURING COARSE GRAIN MOLDED POROUS BODIES CONTAINING ION EXCHANGERS, WHICH COMPRISES FORMING A MIXTURE OF A THERMOPLASTIC MATERIAL AND PARTICLES OF ION EXCHANGER MATERIAL, SAID MIXTURE HAVING WEIGHT PROPORTIONS OF THERMOPLASTIC MATERIAL TO PARTICLES OF ION EXCHANGER MATERIAL IN AN AMOUNT SUFFICIENT TO PERMIT SWELLING AND PREVENT BREAKAGE OF THE ION EXCHANGE MATERIAL, FORMING SAID MIXTURE INTO MOLDED FORMS, HEATING SAID MOLDED FORMS TO SINTERING TEMPERATURE, AND INTERRUPTING THE HEATING BEFORE SAID THERMOPLASTIC MATERIAL CAN STICK TO SAID ION EXCHANGER MATERIAL BY MELTING.
Claim 2
Dependent Claim
85 words
PROCESS FOR MANUFACTURING COARSE GRAIN MOLDED POROUS BODIES CONTAINING ION EXCHANGERS, WHICH COMPRISES FORMING A MIXTURE OF A THERMOPLASTIC MATERIAL AND PARTICLES OF ION EXCHANGER MATERIAL, SAID MIXTURE HAVING WEIGHT PROPORTIONS OF THERMOPLASTIC MATERIAL TO PARTICLES OF ION EXCHANGER MATERIAL IN AN AMOUNT SUFFICIENT TO PERMIT SWELLING AND PREVENT BREAKAGE OF THE ION EXCHANGE MATERIAL, FORMING SAID MIXTURE INTO MOLDED FORMS, HEATING SAID MOLDED FORMS TO SINTERING TEMPERATURE, AND INTERRUPTING THE HEATING BEFORE SAID THERMOPLASTIC MATERIAL CAN STICK TO SAID ION EXCHANGER MATERIAL BY MELTING.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |