FR2416107A1 - Drying de-stabilised latex - by mixing with anti-tackifying agent, e.g. silica, and simultaneously agitating, grinding and drying - Google Patents
Drying de-stabilised latex - by mixing with anti-tackifying agent, e.g. silica, and simultaneously agitating, grinding and dryingInfo
- Publication number
- FR2416107A1 FR2416107A1 FR7803080A FR7803080A FR2416107A1 FR 2416107 A1 FR2416107 A1 FR 2416107A1 FR 7803080 A FR7803080 A FR 7803080A FR 7803080 A FR7803080 A FR 7803080A FR 2416107 A1 FR2416107 A1 FR 2416107A1
- Authority
- FR
- France
- Prior art keywords
- drying
- latex
- mixing
- grinding
- tackifying agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/06—Conditioning or physical treatment of the material to be shaped by drying
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
- C08C1/00—Treatment of rubber latex
- C08C1/14—Coagulation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
- C08J3/16—Powdering or granulating by coagulating dispersions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2021/00—Use of unspecified rubbers as moulding material
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
Pulverising dynamic dyring process for destabilised latex comprises (a) mixing the destabilised latex with an anti-tackifying agent (I); (b) simultaneously agitating and grinding the mixt.; (c) drying the particles by heating without interrupting step (b); and pref. also (d) sieving the prod. obtd. after step (c). Pref. part of the serum contained in the latex is mechanically extracted before mixing the latter with (I). Drying is accelerated due to agitation of the mixt., to the fine particle size of the destabilised latex and to the high temp. made possible by presence of (I). The prod. is obtd. as fine powder, which allows greater flexibility of use.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7803080A FR2416107A1 (en) | 1978-02-03 | 1978-02-03 | Drying de-stabilised latex - by mixing with anti-tackifying agent, e.g. silica, and simultaneously agitating, grinding and drying |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7803080A FR2416107A1 (en) | 1978-02-03 | 1978-02-03 | Drying de-stabilised latex - by mixing with anti-tackifying agent, e.g. silica, and simultaneously agitating, grinding and drying |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2416107A1 true FR2416107A1 (en) | 1979-08-31 |
FR2416107B1 FR2416107B1 (en) | 1981-02-06 |
Family
ID=9204197
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7803080A Granted FR2416107A1 (en) | 1978-02-03 | 1978-02-03 | Drying de-stabilised latex - by mixing with anti-tackifying agent, e.g. silica, and simultaneously agitating, grinding and drying |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2416107A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3586654A (en) * | 1969-04-15 | 1971-06-22 | Nat Distillers Chem Corp | Process for the preparation of polymer powders of controlled particle shape,size and size distribution and product |
FR2185633A1 (en) * | 1972-05-25 | 1974-01-04 | Uniroyal Ltd | Rubber powder by flocculation - of aq dispersion using distribn agent adhering to surface of formed particles |
FR2209778A1 (en) * | 1972-12-06 | 1974-07-05 | Bp Chem Int Ltd | |
US3907734A (en) * | 1973-04-11 | 1975-09-23 | Goodyear Tire & Rubber | Method of producing powdered polymers |
DE2531964A1 (en) * | 1975-07-17 | 1977-02-03 | Dunlop Ag | PROCESS FOR THE MANUFACTURING OF RUBBER POWDERS WITH RUBBER POWDER |
-
1978
- 1978-02-03 FR FR7803080A patent/FR2416107A1/en active Granted
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3586654A (en) * | 1969-04-15 | 1971-06-22 | Nat Distillers Chem Corp | Process for the preparation of polymer powders of controlled particle shape,size and size distribution and product |
FR2185633A1 (en) * | 1972-05-25 | 1974-01-04 | Uniroyal Ltd | Rubber powder by flocculation - of aq dispersion using distribn agent adhering to surface of formed particles |
FR2209778A1 (en) * | 1972-12-06 | 1974-07-05 | Bp Chem Int Ltd | |
US3907734A (en) * | 1973-04-11 | 1975-09-23 | Goodyear Tire & Rubber | Method of producing powdered polymers |
DE2531964A1 (en) * | 1975-07-17 | 1977-02-03 | Dunlop Ag | PROCESS FOR THE MANUFACTURING OF RUBBER POWDERS WITH RUBBER POWDER |
Also Published As
Publication number | Publication date |
---|---|
FR2416107B1 (en) | 1981-02-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property |