GB444582A - Improvements in or relating to spreading, coating, extruding or like operations of aqueous dispersions of or containing rubber or the like - Google Patents
Improvements in or relating to spreading, coating, extruding or like operations of aqueous dispersions of or containing rubber or the likeInfo
- Publication number
- GB444582A GB444582A GB27157/34A GB2715734A GB444582A GB 444582 A GB444582 A GB 444582A GB 27157/34 A GB27157/34 A GB 27157/34A GB 2715734 A GB2715734 A GB 2715734A GB 444582 A GB444582 A GB 444582A
- Authority
- GB
- United Kingdom
- Prior art keywords
- roll
- dispersion
- coating
- die
- shaping member
- 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
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B7/00—Electrophoretic production of compounds or non-metals
-
- 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)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Coating Apparatus (AREA)
- Electrostatic Spraying Apparatus (AREA)
Abstract
444,582. Electric endosmose. INTERNATIONAL LATEX PROCESSES, Ltd., 10, Lefebvre Street, St. Peter's Port, Guernsey. Sept. 21, 1934, No. 27157. Convention date, Oct. 10, 1933. [Class 41] [See also Groups V and VIII] In a process of mechanically spreading, coating, extruding, &c. an aqueous dispersion of rubber &c. by means of a confining or shaping member, an electrical potential difference is maintained between the shaping member and the dispersion, the charge on the said member being similar in sign to the charge of the disperse phase of the dispersion. The potential difference produces an accumulation of water adjacent the shaping member which acts as a lubricant. As shown, a sheet of fabric 1 to be coated is passed over a roll 2 and under a spreader bar 3 which is insulated from the rest of the apparatus and is connected to the negative pole of a direct current supply when an alkaline dispersion is used. The positive pole is connected to the roll 2 by a lead 5. A wetting roll 7 is provided to moisten the fabric 1, preferably with an electrolyte solution. As modifications, the positive pole of the current supply may be connected to an electrode immersed in the dispersion 6 or to a roll making electrical contact with the surface of the material 1 after it has been moistened bv the roll 7. In the case of positively charged dispersions, such as acid latex, the electrical connections are reversed. Potentials up to 220 volts may be used. When coating a wire in an extrusion die the potential may be applied between the wire and the die, and for producing threads, sheets, &c. the die is insulated from the body of the machine and maintained at a negative potential. Specification 422,516, [Group VIII], is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US692931A US2052131A (en) | 1933-10-10 | 1933-10-10 | Spreading, extruding, or like operations |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB444582A true GB444582A (en) | 1936-03-23 |
Family
ID=24782635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27157/34A Expired GB444582A (en) | 1933-10-10 | 1934-09-21 | Improvements in or relating to spreading, coating, extruding or like operations of aqueous dispersions of or containing rubber or the like |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2052131A (en) |
| AT (1) | AT146823B (en) |
| DE (1) | DE619941C (en) |
| FR (1) | FR779542A (en) |
| GB (1) | GB444582A (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2615822A (en) * | 1946-02-21 | 1952-10-28 | William C Huebner | Method of making sheet or web material |
| US2748070A (en) * | 1953-02-26 | 1956-05-29 | Procter & Gamble | Electrical lubrication of detergent shaping devices |
| BE561953A (en) * | 1956-11-01 | |||
| US3196063A (en) * | 1962-03-28 | 1965-07-20 | Int Paper Co | Coated paper and method of producing the same |
| US3335026A (en) * | 1963-07-16 | 1967-08-08 | Gevaert Photo Prod Nv | Method for coating liquid compositions employing electrostatic field |
| US3462286A (en) * | 1963-07-16 | 1969-08-19 | Gevaert Photo Prod Nv | Method of coating webs with photographic emulsions or other liquid compositions utilizing an electric field |
| US3833493A (en) * | 1968-10-03 | 1974-09-03 | Xerox Corp | Imaging process |
| US3943049A (en) * | 1971-01-20 | 1976-03-09 | Xerox Corporation | Apparatus for separating agglomerated particles within suspensions |
| US4489672A (en) * | 1981-01-05 | 1984-12-25 | Polaroid Corporation | Apparatus for coating semiconductive material |
| US4457256A (en) * | 1981-01-05 | 1984-07-03 | Polaroid Corporation | Precharged web coating apparatus |
| US6368675B1 (en) | 2000-04-06 | 2002-04-09 | 3M Innovative Properties Company | Electrostatically assisted coating method and apparatus with focused electrode field |
| US6475572B2 (en) | 2000-04-06 | 2002-11-05 | 3M Innovative Properties Company | Electrostatically assisted coating method with focused web-borne charges |
-
1933
- 1933-10-10 US US692931A patent/US2052131A/en not_active Expired - Lifetime
-
1934
- 1934-09-05 DE DEI50510D patent/DE619941C/en not_active Expired
- 1934-09-11 AT AT146823D patent/AT146823B/en active
- 1934-09-21 GB GB27157/34A patent/GB444582A/en not_active Expired
- 1934-10-10 FR FR779542D patent/FR779542A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR779542A (en) | 1935-04-08 |
| US2052131A (en) | 1936-08-25 |
| DE619941C (en) | 1935-10-10 |
| AT146823B (en) | 1936-08-25 |
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