PT88239A - Cork powder agglomeration without adhesive - by depolymerisation of the suberin and subsequent polymerisation under heat and pressure - Google Patents
Cork powder agglomeration without adhesive - by depolymerisation of the suberin and subsequent polymerisation under heat and pressureInfo
- Publication number
- PT88239A PT88239A PT8823988A PT8823988A PT88239A PT 88239 A PT88239 A PT 88239A PT 8823988 A PT8823988 A PT 8823988A PT 8823988 A PT8823988 A PT 8823988A PT 88239 A PT88239 A PT 88239A
- Authority
- PT
- Portugal
- Prior art keywords
- suberin
- depolymerisation
- adhesive
- pressure
- under heat
- Prior art date
Links
Landscapes
- Dry Formation Of Fiberboard And The Like (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The process consists of de-polymerising the suberia present in the cork granules by treatment with alternative basic solns., acidification and drying to a fixed level of humidity. This is followed by hot pressing, causing polymerisation of various cork constituents, which act as binder. Other particles may be incorporated, or surface coating films adhered.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PT8823988A PT88239B (en) | 1988-08-10 | 1988-08-10 | PROCESS FOR THE PRODUCTION OF CORTICE POOR AGGLOMERATES WITHOUT ADHESION OF TAILS, BY PRE-DESPOLIMERIZATION OF SUBERINE AND BACK POLYMERIZATION BY PRESSURE AND HEATING |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PT8823988A PT88239B (en) | 1988-08-10 | 1988-08-10 | PROCESS FOR THE PRODUCTION OF CORTICE POOR AGGLOMERATES WITHOUT ADHESION OF TAILS, BY PRE-DESPOLIMERIZATION OF SUBERINE AND BACK POLYMERIZATION BY PRESSURE AND HEATING |
Publications (2)
Publication Number | Publication Date |
---|---|
PT88239A true PT88239A (en) | 1990-08-31 |
PT88239B PT88239B (en) | 1995-03-01 |
Family
ID=20084295
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PT8823988A PT88239B (en) | 1988-08-10 | 1988-08-10 | PROCESS FOR THE PRODUCTION OF CORTICE POOR AGGLOMERATES WITHOUT ADHESION OF TAILS, BY PRE-DESPOLIMERIZATION OF SUBERINE AND BACK POLYMERIZATION BY PRESSURE AND HEATING |
Country Status (1)
Country | Link |
---|---|
PT (1) | PT88239B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015034383A1 (en) | 2013-09-05 | 2015-03-12 | Cork Supply Portugal, S.A. | Two-component natural polymeric water-based glues, obtained from derivatives of cork |
-
1988
- 1988-08-10 PT PT8823988A patent/PT88239B/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015034383A1 (en) | 2013-09-05 | 2015-03-12 | Cork Supply Portugal, S.A. | Two-component natural polymeric water-based glues, obtained from derivatives of cork |
Also Published As
Publication number | Publication date |
---|---|
PT88239B (en) | 1995-03-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG3A | Patent granted, date of granting |
Effective date: 19940804 |
|
NF3A | Restitutio in integrum |
Free format text: 20000403 RESTITUTIO IN INTEGRUM |
|
MM4A | Annulment/lapse due to non-payment of fees;searched & examined patent |
Free format text: MAXIMUM VALIDITY LIMIT REACHED Effective date: 20090804 |