GB1373792A - Pretreating electrodepositable compositions - Google Patents

Pretreating electrodepositable compositions

Info

Publication number
GB1373792A
GB1373792A GB5232671A GB5232671A GB1373792A GB 1373792 A GB1373792 A GB 1373792A GB 5232671 A GB5232671 A GB 5232671A GB 5232671 A GB5232671 A GB 5232671A GB 1373792 A GB1373792 A GB 1373792A
Authority
GB
United Kingdom
Prior art keywords
ultrafiltration
membrane
solubilized
vehicle
layer
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
Application number
GB5232671A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PPG Industries Inc
Original Assignee
PPG Industries Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by PPG Industries Inc filed Critical PPG Industries Inc
Publication of GB1373792A publication Critical patent/GB1373792A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D13/00—Electrophoretic coating characterised by the process
    • C25D13/22—Servicing or operating apparatus or multistep processes
    • C25D13/24—Regeneration of process liquids
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D13/00—Electrophoretic coating characterised by the process
    • C25D13/22—Servicing or operating apparatus or multistep processes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Paints Or Removers (AREA)

Abstract

1373792 Ultrafiltration of electro-deposition composition PPG INDUSTRIES Inc 11 Nov 1971 [12 Nov 1970] 52326/71 Heading C7B [Also in Division B 1] A method of treating an aqueous electrodeposition composition containing a film forming resin vehicle comprises subjecting the composition to a selective separation process which retains the vehicle and passes the aqueous effluent through a physical barrier. The separation process may be ultrafiltration or reverse osmosis. The vehicle may be an ionically solubilized synthetic resin such as a polycarboxylic acid solubilized with an amine or an alkali metal hydroxide. Alternatively it may be a polybasic resin solubilized with an acid. The ultrafiltration membrane may comprise a layer of homogeneous polymer supported on a thicker layer of microporous open-celled sponge, the pore size of which may increase from one face to the other. The membrane may be thermoplastic polymers such as polyvinyl chloride, polyacrylonitrile, polysulfones, poly (methyl methacrylate), polycarbonates, poly (n-butyl methacrylate) or a co-polymer of any of these. The membrane may be supported on a sheet of paper. The homogeneous layer is 0À1-10À0 microns thick and the sponge is 20À0 microns to 1 millimetre thick. The filter may pass molecules less than M.W. 500. The ultrafiltration may be conducted as a concentration process or a diafiltration process.
GB5232671A 1970-11-12 1971-11-11 Pretreating electrodepositable compositions Expired GB1373792A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US8853370A 1970-11-12 1970-11-12

Publications (1)

Publication Number Publication Date
GB1373792A true GB1373792A (en) 1974-11-13

Family

ID=22211920

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5232671A Expired GB1373792A (en) 1970-11-12 1971-11-11 Pretreating electrodepositable compositions

Country Status (7)

Country Link
US (1) US3663402A (en)
JP (1) JPS5510674B1 (en)
CA (1) CA968743A (en)
DE (1) DE2156180B2 (en)
FR (1) FR2114567A5 (en)
GB (1) GB1373792A (en)
IT (1) IT945790B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4051091A (en) * 1974-11-19 1977-09-27 Mitsubishi Denki Kabushiki Kaisha Water-dispersion varnish for electrodeposition and process for making said water dispersion varnish
FR2387999A1 (en) * 1977-04-22 1978-11-17 Rhone Poulenc Ind BINDER FOR THE MANUFACTURE OF NEEDLE FLOORING
US4331525A (en) * 1979-11-13 1982-05-25 Diamond Shamrock Corporation Electrolytic-ultrafiltration apparatus and process for recovering solids from a liquid medium
DE3431276A1 (en) * 1984-08-25 1986-03-06 Gerhard Collardin GmbH, 5000 Köln METHOD FOR CONTROLLING ELECTROLYTE CONTENT OF AQUEOUS RESIN DISPERSIONS
US4661385A (en) * 1985-06-04 1987-04-28 Amchem Products, Inc. Filtration stabilization of autodeposition baths
JPS63100032U (en) * 1986-12-19 1988-06-29
DE4207383A1 (en) * 1992-03-09 1993-09-16 Herberts Gmbh METHOD FOR RECOVERY OF THE OVERSPRAY OF AQUEOUS COATING AGENTS ON THE SPRAY APPLICATION IN SPRAYING CABINS
US20060286693A1 (en) * 2005-06-15 2006-12-21 University Of Delaware Fabrication of three-dimensional photonic crystals in gallium arsenide-based material
CN111615535A (en) 2017-12-06 2020-09-01 埃克森美孚化学专利公司 Low density foamed thermoplastic vulcanizate composition

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1071458A (en) * 1965-05-31 1967-06-07 Pressed Steel Fisher Ltd A process for treating the effluent from plants for the electro-deposition of paint
GB1163351A (en) * 1967-03-22 1969-09-04 Pressed Steel Fisher Ltd Treatment of Effluents by the Reverse Osmosis Process
US3526588A (en) * 1967-09-21 1970-09-01 Amicon Corp Macromolecular fractionation process
SE442411B (en) * 1969-04-09 1985-12-23 Ppg Industries Inc WAY TO REGULATE THE COMPOSITION OF AN ELECTROPHORES - OR ELECTRIC REPLACEMENT BATH
JPS4836165A (en) * 1971-09-17 1973-05-28

Also Published As

Publication number Publication date
IT945790B (en) 1973-05-10
DE2156180A1 (en) 1972-05-31
JPS5510674B1 (en) 1980-03-18
US3663402A (en) 1972-05-16
DE2156180B2 (en) 1974-07-18
FR2114567A5 (en) 1972-06-30
CA968743A (en) 1975-06-03

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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