GB1512071A - Process for concentrating latices by ultra-filtration - Google Patents
Process for concentrating latices by ultra-filtrationInfo
- Publication number
- GB1512071A GB1512071A GB17576/75A GB1757675A GB1512071A GB 1512071 A GB1512071 A GB 1512071A GB 17576/75 A GB17576/75 A GB 17576/75A GB 1757675 A GB1757675 A GB 1757675A GB 1512071 A GB1512071 A GB 1512071A
- Authority
- GB
- United Kingdom
- Prior art keywords
- membrane
- ultrafiltration
- latices
- vinyl chloride
- ultra
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F6/00—Post-polymerisation treatments
- C08F6/14—Treatment of polymer emulsions
- C08F6/20—Concentration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/145—Ultrafiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/08—Prevention of membrane fouling or of concentration polarisation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0081—After-treatment of organic or inorganic membranes
- B01D67/0088—Physical treatment with compounds, e.g. swelling, coating or impregnation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/28—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling by soaking or impregnating
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Medicinal Chemistry (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Latices obtainable by emulsion polymerisation of vinyl chloride, optionally with other copolymerisable monomers, are concentrated. Ultrafiltration through a semipermeable membrane made from a synthetic polymer removes water and low-molecular-weight substances dissolved therein from the latex. The membrane should retain substances from a molecular weight of 5,000 to 100,000 and is treated before the ultrafiltration with an aqueous emulsifier solution. This considerably reduces the formation of deposits on the membrane during the ultrafiltration. The pretreatment of the membrane is carried out using emulsifiers as used for the emulsion polymerisation of vinyl chloride.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2420922A DE2420922C3 (en) | 1974-04-30 | 1974-04-30 | Process for concentrating latices |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1512071A true GB1512071A (en) | 1978-05-24 |
Family
ID=5914372
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB17576/75A Expired GB1512071A (en) | 1974-04-30 | 1975-04-28 | Process for concentrating latices by ultra-filtration |
Country Status (14)
Country | Link |
---|---|
JP (1) | JPS5117940A (en) |
AT (1) | AT342865B (en) |
BE (1) | BE828619A (en) |
CA (1) | CA1051137A (en) |
CH (1) | CH613463A5 (en) |
DE (1) | DE2420922C3 (en) |
ES (1) | ES436915A1 (en) |
FR (1) | FR2269542B1 (en) |
GB (1) | GB1512071A (en) |
HU (1) | HU171910B (en) |
IT (1) | IT1037685B (en) |
NL (1) | NL166032C (en) |
SE (1) | SE406592B (en) |
ZA (1) | ZA752749B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4160726A (en) * | 1976-05-07 | 1979-07-10 | Abcor, Inc. | Ultrafiltration process for the concentration of polymeric latices |
FR2387999A1 (en) | 1977-04-22 | 1978-11-17 | Rhone Poulenc Ind | BINDER FOR THE MANUFACTURE OF NEEDLE FLOORING |
LU81905A1 (en) * | 1979-11-16 | 1981-06-04 | Arbed | SCREEN CHANGER FOR CONTINUOUS CASTING PLANTS |
JPS60243105A (en) * | 1984-05-17 | 1985-12-03 | Osaka Soda Co Ltd | Preparation of diallyl phthalate based polymer |
-
1974
- 1974-04-30 DE DE2420922A patent/DE2420922C3/en not_active Expired
-
1975
- 1975-04-24 ES ES436915A patent/ES436915A1/en not_active Expired
- 1975-04-25 NL NL7504955.A patent/NL166032C/en not_active IP Right Cessation
- 1975-04-25 CA CA225,839A patent/CA1051137A/en not_active Expired
- 1975-04-25 CH CH530475A patent/CH613463A5/en not_active IP Right Cessation
- 1975-04-28 GB GB17576/75A patent/GB1512071A/en not_active Expired
- 1975-04-28 IT IT22801/75A patent/IT1037685B/en active
- 1975-04-28 JP JP50050862A patent/JPS5117940A/ja active Pending
- 1975-04-29 FR FR7513369A patent/FR2269542B1/fr not_active Expired
- 1975-04-29 AT AT329975A patent/AT342865B/en not_active IP Right Cessation
- 1975-04-29 ZA ZA00752749A patent/ZA752749B/en unknown
- 1975-04-29 SE SE7505015A patent/SE406592B/en unknown
- 1975-04-30 BE BE155981A patent/BE828619A/en not_active IP Right Cessation
- 1975-04-30 HU HU75HO00001797A patent/HU171910B/en unknown
Also Published As
Publication number | Publication date |
---|---|
JPS5117940A (en) | 1976-02-13 |
IT1037685B (en) | 1979-11-20 |
DE2420922B2 (en) | 1979-07-05 |
ATA329975A (en) | 1977-08-15 |
HU171910B (en) | 1978-04-28 |
BE828619A (en) | 1975-10-30 |
CH613463A5 (en) | 1979-09-28 |
ZA752749B (en) | 1976-05-26 |
NL166032C (en) | 1981-06-15 |
SE7505015L (en) | 1975-10-31 |
FR2269542B1 (en) | 1978-10-13 |
ES436915A1 (en) | 1977-04-16 |
CA1051137A (en) | 1979-03-20 |
NL166032B (en) | 1981-01-15 |
DE2420922C3 (en) | 1980-03-13 |
FR2269542A1 (en) | 1975-11-28 |
NL7504955A (en) | 1975-11-03 |
DE2420922A1 (en) | 1975-11-20 |
AT342865B (en) | 1978-04-25 |
SE406592B (en) | 1979-02-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |