MX168932B - COATING COMPOSITIONS - Google Patents
COATING COMPOSITIONSInfo
- Publication number
- MX168932B MX168932B MX461286A MX461286A MX168932B MX 168932 B MX168932 B MX 168932B MX 461286 A MX461286 A MX 461286A MX 461286 A MX461286 A MX 461286A MX 168932 B MX168932 B MX 168932B
- Authority
- MX
- Mexico
- Prior art keywords
- percent
- weight based
- methylolated
- amino
- highly
- Prior art date
Links
Landscapes
- Paints Or Removers (AREA)
Abstract
La presente invención se refiere a una composición de revestimiento acuosa, adecuada para aplicación a un substrato catódico mediante electrodeposición, la cual comprende una dispersión en un medio acuoso en la presencia de un ácido de ionización de amina de partículas catiónicamente estabilizadas, que consiste de: (1) de 50 a 84 por ciento por peso en base al peso combinado de (1),(2) y (3) de un producto de reacción amino-epóxido; (2) de 15 a 45 por ciento por peso en base a los pesos combinados de (1),(2) y (3) de un poliisocianato bloqueado como un agente de entrelazamiento; y (3) de 1 a 12 por ciento por peso en base a los pesos combinados de (1),(2) y (3) de una resina de melaminaformaldehído altamente metilolada y altamente alquilada, en donde un promedio de cuando menos 4.0 de los átomos de hidrógeno reactivos por anillo de triazina están metilolados, cuando menos 3.5 de estos grupos metilos estan alquilados y los grupos de aquilación se relacionan de alquilo con de 4 a 10 átomos de carbono, la resina es prácticamente no reactiva con el producto (1) de reacción amino-epóxido, a temperaturas por debajo de 190 grados c.The present invention relates to an aqueous coating composition, suitable for application to a cathodic substrate by electrodeposition, which comprises a dispersion in an aqueous medium in the presence of an amine ionizing acid of cationically stabilized particles, consisting of: (1) 50 to 84 percent by weight based on the combined weight of (1), (2) and (3) of an amino epoxide reaction product; (2) 15 to 45 percent by weight based on the combined weights of (1), (2) and (3) of a blocked polyisocyanate as a crosslinking agent; and (3) from 1 to 12 percent by weight based on the combined weights of (1), (2) and (3) of a highly methylolated and highly alkylated melamine formaldehyde resin, where an average of at least 4.0 of the reactive hydrogen atoms per triazine ring are methylolated, at least 3.5 of these methyl groups are alkylated and the alkylation groups are related to alkyl with 4 to 10 carbon atoms, the resin is practically non-reactive with the product (1 ) of amino-epoxide reaction, at temperatures below 190 degrees c.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB858530645A GB8530645D0 (en) | 1985-12-12 | 1985-12-12 | Coating compositions |
| GB8626293A GB2185031B (en) | 1985-12-12 | 1986-11-04 | Coating compositions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MX168932B true MX168932B (en) | 1993-06-15 |
Family
ID=26290109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX461286A MX168932B (en) | 1985-12-12 | 1986-12-10 | COATING COMPOSITIONS |
Country Status (2)
| Country | Link |
|---|---|
| BR (1) | BR8605944A (en) |
| MX (1) | MX168932B (en) |
-
1986
- 1986-12-04 BR BR8605944A patent/BR8605944A/en not_active IP Right Cessation
- 1986-12-10 MX MX461286A patent/MX168932B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BR8605944A (en) | 1987-09-15 |
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