Patent US4393166A successfully refreshed from Google Patents.
US4393166A
Expired / Lapsed
US
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Process for the preparation of polyaddition products of isocyanates and denatured biomasses, their use as reactive fillers and as plant nutrients and a process for the production of sheets or shaped articles using the polyaddition products
Assignee: Bayer AG
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Filing: 1980-05-05
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Granted: 1983-07-12
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Expires: 2000-05-05
Abstract
Abstract The instant invention is directed to a process for the production of denatured polyaddition products of biomasses and isocyanates, comprising reacting (A) from 5 to 98%, by weight, based on (A)+(B), of a biomass based on microorganisms or derivative and decomposition products thereof with (B) from 95 to 2%, by weight, based on (A)+(B), of a compound containing isocyanate groups, at temperatures of at least 50° C. with complete denaturing of component (A).
Inventors
- 👤 Artur Reischl
- 👤 Kuno Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:08
CPC Classifications
C; C02; C02F; C02F11/00; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/40; C08G18/64; C08L; C08L97/00; C08L97/02; C12; C12N; C12N11/00; C12N11/02; C12N11/08; C12N11/089; C12N11/091; C12N11/093; Y; Y02; Y02E; Y02E50/00; Y02E50/30; Y02W; Y02W30/00; Y02W30/40; Y10; Y10S; Y10S210/00; Y10S210/928
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
67 words
A process for the production of denatured polyaddition products of biomasses and isocyanates, comprising reacting (A) from 5 to 98%, by weight, based on (A)+(B), of a biomass based on microorganisms or derivative and decomposition products thereof with (B) from 95 to 2%, by weight, based on (A)+(B), of a compound containing isocyanate groups, at temperatures of at least 50° C. with complete denaturing of component (A).
Claim 2
Dependent Claim
67 words
A process for the production of denatured polyaddition products of biomasses and isocyanates, comprising reacting (A) from 5 to 98%, by weight, based on (A)+(B), of a biomass based on microorganisms or derivative and decomposition products thereof with (B) from 95 to 2%, by weight, based on (A)+(B), of a compound containing isocyanate groups, at temperatures of at least 50° C. with complete denaturing of component (A).
Claim 3
Dependent Claim
19 words
The process of claim 1, wherein the reaction is conducted in the presence of water and/or an organic solvent.
Claim 4
Dependent Claim
18 words
The process of claim 1, wherein the reaction is conducted in the presence of organic and/or inorganic additives.
Claim 5
Dependent Claim
24 words
The process of claim 1, wherein from 20 to 90%, by weight of component (A) and 80 to 10% of component (B) are used.
Claim 6
Dependent Claim
15 words
The process of claim 1, wherein the reaction temperature is from 50° to 200° C.
Claim 7
Dependent Claim
15 words
The process of claim 5, wherein the reaction temperature is from 80° to 150° C.
Claim 8
Dependent Claim
54 words
The process of claim 1, wherein 3 to 20%, based on the dry weight of (A)+(B), of said compounds containing isocyanate groups have a molecular weight of 500 or less or and 20 to 80%, based on the dry weight of (A)+(B), of said compounds containing isocyanate groups have a molecular weight above 500.
Claim 9
Dependent Claim
22 words
The process of claim 7, wherein said compounds containing isocyanate groups with a molecular weight above 500 are tolylene diisocyanate distillation residues.
Claim 10
Dependent Claim
21 words
The process of claim 1, wherein said reaction is conducted in a straight-flow mixer or in a multiphase flow reaction tube.
Claim 11
Dependent Claim
14 words
The process of claim 1, further comprising the addition of organic and/or inorganic fillers.
Claim 12
Dependent Claim
29 words
The process of claim 1, wherein said biomass is an aqueous or dried sludge from industrial or communal purification plants which were optionally subjected to aerobic or anaerobic digestion.
Claim 13
Dependent Claim
14 words
The process of claim 1, wherein said biomass are yeasts from industrial fermentation processes.
Claim 14
Dependent Claim
29 words
The process of claim 12, wherein said fermentation processes are selected from the group consisting of the production of alcohol, acetic acid, lactic acid, citric acid, and tartaric acid.
Claim 15
Dependent Claim
22 words
The process of claim 12, wherein said fermentation processes are selected from the production of proteins from petroleum, paraffin, methane or methanol.
Claim 16
Dependent Claim
22 words
The process of claim 1, wherein said biomass is selected from the group consisting of the production of penicillin, tetracycline, and sisomycin.
Claim 17
Dependent Claim
23 words
The process of claim 1, wherein said compound containing isocyanate groups is a mono- or polyisocyanate which is liquid under the reaction conditions.
Claim 18
Dependent Claim
17 words
The process of claim 1, wherein said compound containing isocyanate groups is dissolved in an organic solvent.
References Cited (Backward Citations)
US3403608A
Cited
US3574062A
Cited
US3705084A
Cited
US3672955A
Cited
US3791927A
Cited
US3812619A
Cited
US3812618A
Cited
GB1429711A
Cited
US3905920A
Cited
US3929575A
Cited
GB1517813A
Cited
GB1518746A
Cited
GB1541100A
Cited
US4098645A
Cited
US4287069A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-07-11 | 1987-01-10 | 1987-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-11 | 1991-01-10 | 1991-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-11 | 1995-01-10 | 1995-07-12 | $7700.00 | Window Closed / Lapsed |