ES429411A1 - A method of preparation of homogeneous compounds of powder in thermofilable powder. (Machine-translation by Google Translate, not legally binding) - Google Patents
A method of preparation of homogeneous compounds of powder in thermofilable powder. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES429411A1 ES429411A1 ES429411A ES429411A ES429411A1 ES 429411 A1 ES429411 A1 ES 429411A1 ES 429411 A ES429411 A ES 429411A ES 429411 A ES429411 A ES 429411A ES 429411 A1 ES429411 A1 ES 429411A1
- Authority
- ES
- Spain
- Prior art keywords
- solution
- volatile components
- powder
- zone
- temperature
- 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
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/03—Powdery paints
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
A method of preparing homogeneous thermosetting powder paint compositions comprising (A) pass a liquid paint composition formed by a solution of 1) a copolymer containing crosslinkable functional groups and having a glass transition temperature in the range of 40ºC to 90ºC and an average molecular weight between about 1,000 and approx. 15,000. 2) pigment and, 3) inert solvent, through an evaporation zone comprising a winding path of relatively narrow cross section, extended in a lateral direction to the direction of the flow of said solution through said zone; (B) heating said solution while it is within said evaporation zone to a temperature: 1) above the melting point of said copolymer but below the point at which degradation takes place; 2) above the temperature at which the aforementioned inert solvent begins to evaporate, thus causing a current turbulence of said solution within said evaporation zone and thus maintaining an intimately bound homogeneous mixture of the vapors of the volatile components of said solution and the dispersed particles of non-volatile components of said solution; (C) passing said homogeneous mixture from said evaporation zone to a separation zone and maintaining, meanwhile, the temperature in said separation zone above the melting point of said copolymer, giving rise to the separation of said vapor from solvent and allowing the non-volatile components to be collected in the molten state; (D) separating said non-volatile components from said separation zone. (E) cooling said non-volatile components to form a solid material, (F) granulating said solid material to form uniformly pigmented particles, (G) mixing a crosslinking agent for said copolymer with said particles. (H) melting said mixture at a temperature higher than the melting point of said particles and said crosslinking agent but lower than the point where crosslinking takes place, thus obtaining a melt having the crosslinking agent uniformly dispersed therein; (I) cooling said melt to form a solid material and, (J) spraying said solid material to form a powder. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US38984473A | 1973-08-20 | 1973-08-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES429411A1 true ES429411A1 (en) | 1977-01-16 |
Family
ID=23539966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES429411A Expired ES429411A1 (en) | 1973-08-20 | 1974-08-20 | A method of preparation of homogeneous compounds of powder in thermofilable powder. (Machine-translation by Google Translate, not legally binding) |
Country Status (12)
| Country | Link |
|---|---|
| JP (1) | JPS5239651B2 (en) |
| AT (1) | AT342164B (en) |
| BE (1) | BE818968A (en) |
| BR (1) | BR7406759D0 (en) |
| CA (1) | CA1035489A (en) |
| DE (1) | DE2434188C3 (en) |
| ES (1) | ES429411A1 (en) |
| FR (1) | FR2241596A1 (en) |
| IT (1) | IT1023047B (en) |
| NL (1) | NL7410680A (en) |
| SE (1) | SE410469B (en) |
| ZA (1) | ZA743997B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5118742A (en) * | 1974-08-06 | 1976-02-14 | Kansai Paint Co Ltd | Shinkina funtaitoryoyososeibutsuno seizohoho |
| JPS56134594U (en) * | 1980-03-13 | 1981-10-13 | ||
| JPS56134593U (en) * | 1980-03-13 | 1981-10-13 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5612425B2 (en) * | 1972-04-17 | 1981-03-20 |
-
1974
- 1974-06-21 ZA ZA00743997A patent/ZA743997B/en unknown
- 1974-07-16 DE DE2434188A patent/DE2434188C3/en not_active Expired
- 1974-08-08 NL NL7410680A patent/NL7410680A/en not_active Application Discontinuation
- 1974-08-13 CA CA206,873A patent/CA1035489A/en not_active Expired
- 1974-08-14 AT AT668074A patent/AT342164B/en not_active IP Right Cessation
- 1974-08-16 SE SE7410466A patent/SE410469B/en unknown
- 1974-08-16 BR BR6759/74A patent/BR7406759D0/en unknown
- 1974-08-19 IT IT52630/74A patent/IT1023047B/en active
- 1974-08-19 BE BE147715A patent/BE818968A/en not_active IP Right Cessation
- 1974-08-19 JP JP49094324A patent/JPS5239651B2/ja not_active Expired
- 1974-08-20 FR FR7428593A patent/FR2241596A1/en active Granted
- 1974-08-20 ES ES429411A patent/ES429411A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE818968A (en) | 1974-12-16 |
| AT342164B (en) | 1978-03-28 |
| JPS5050434A (en) | 1975-05-06 |
| DE2434188C3 (en) | 1978-08-03 |
| JPS5239651B2 (en) | 1977-10-06 |
| AU7090074A (en) | 1976-01-08 |
| BR7406759D0 (en) | 1975-06-03 |
| ATA668074A (en) | 1977-07-15 |
| NL7410680A (en) | 1975-02-24 |
| DE2434188A1 (en) | 1975-03-27 |
| CA1035489A (en) | 1978-07-25 |
| FR2241596A1 (en) | 1975-03-21 |
| SE410469B (en) | 1979-10-15 |
| SE7410466L (en) | 1975-02-21 |
| ZA743997B (en) | 1975-08-27 |
| FR2241596B1 (en) | 1976-10-22 |
| DE2434188B2 (en) | 1977-11-10 |
| IT1023047B (en) | 1978-05-10 |
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