GB1416004A - Preparation of polymer composites - Google Patents
Preparation of polymer compositesInfo
- Publication number
- GB1416004A GB1416004A GB184374A GB184374A GB1416004A GB 1416004 A GB1416004 A GB 1416004A GB 184374 A GB184374 A GB 184374A GB 184374 A GB184374 A GB 184374A GB 1416004 A GB1416004 A GB 1416004A
- Authority
- GB
- United Kingdom
- Prior art keywords
- particles
- jan
- separating
- composition
- acetone
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/02—Loose filtering material, e.g. loose fibres
-
- 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
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/205—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase
- C08J3/21—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase the polymer being premixed with a liquid phase
Abstract
1416004 Polymer particles containing magnetic material COMMONWEALTH SCIENTIFIC & INDUSTRIAL RESEARCH ORGANIZATION and ICI AUSTRALIA Ltd 15 Jan 1974 [31 Jan 1973] 01843/74 Headings C3F C3P and C3R Particles of narrow size distribution and comprising 30-90% (by weight of the composition) of magnetic particles in a matrix of a linear polymeric material are produced by (a) forming liquid droplets of the composition (in melt or solution. form), (b) solidifying the droplets, (c) separating the particles of the desired size range, (d) reconverting remaining particles to a liquid form and (e) recycling these to step (a). In examples particles of Fe 3 O 4 are mixed with an acetone solution of partially hydrolysed vinyl chloride-vinyl acetate copolymer, or ethylcellulose, or phenol-formaldehyde novolac, together with unwanted size particles from earlier preparations, the mixture dispersed in paraffin oil containing a surfactant, removing the acetone by means of a current of air while warming to 50‹ C. and separating the resultant solid particles from the paraffin. The products are magnetized and used as filter aids.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU209273 | 1973-01-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1416004A true GB1416004A (en) | 1975-12-03 |
Family
ID=3692603
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB184374A Expired GB1416004A (en) | 1973-01-31 | 1974-01-15 | Preparation of polymer composites |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1416004A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0038730B1 (en) * | 1980-04-18 | 1984-09-26 | Rhone-Poulenc Specialites Chimiques | Latex of magnetic polymers and process for their preparation |
FR2658200A1 (en) * | 1990-02-14 | 1991-08-16 | Rhone Poulenc Chimie | Process for preparation of aqueous dispersions of particles of magnetisable polymer of narrow distribution |
-
1974
- 1974-01-15 GB GB184374A patent/GB1416004A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0038730B1 (en) * | 1980-04-18 | 1984-09-26 | Rhone-Poulenc Specialites Chimiques | Latex of magnetic polymers and process for their preparation |
FR2658200A1 (en) * | 1990-02-14 | 1991-08-16 | Rhone Poulenc Chimie | Process for preparation of aqueous dispersions of particles of magnetisable polymer of narrow distribution |
EP0517987A1 (en) * | 1990-02-14 | 1992-12-16 | Societe Prolabo | Process for preparing aqueous dispersions of magnetic polymer particles with sharp grain size distribution |
US5242964A (en) * | 1990-02-14 | 1993-09-07 | Rhone-Poulenc Chimie | Process for the preparation of aqueous dispersions of magnetizable polymer particles with a desired size narrow distribution, and aqueous dispersions thereof, and uses thereof |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PE20 | Patent expired after termination of 20 years |
Effective date: 19940114 |