MX9710054A - Poliisocianatos de baja energia superficial y su uso en composiciones de recubrimiento de uno o dos componentes. - Google Patents
Poliisocianatos de baja energia superficial y su uso en composiciones de recubrimiento de uno o dos componentes.Info
- Publication number
- MX9710054A MX9710054A MX9710054A MX9710054A MX9710054A MX 9710054 A MX9710054 A MX 9710054A MX 9710054 A MX9710054 A MX 9710054A MX 9710054 A MX9710054 A MX 9710054A MX 9710054 A MX9710054 A MX 9710054A
- Authority
- MX
- Mexico
- Prior art keywords
- polyisocyanates
- fluorine
- weight
- groups
- polyisocyanate
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/80—Masked polyisocyanates
- C08G18/8061—Masked polyisocyanates masked with compounds having only one group containing active hydrogen
- C08G18/8083—Masked polyisocyanates masked with compounds having only one group containing active hydrogen with compounds containing at least one heteroatom other than oxygen or nitrogen
- C08G18/8087—Masked polyisocyanates masked with compounds having only one group containing active hydrogen with compounds containing at least one heteroatom other than oxygen or nitrogen containing halogen atoms
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/773—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur halogens
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/78—Nitrogen
- C08G18/7806—Nitrogen containing -N-C=0 groups
- C08G18/7818—Nitrogen containing -N-C=0 groups containing ureum or ureum derivative groups
- C08G18/7837—Nitrogen containing -N-C=0 groups containing ureum or ureum derivative groups containing allophanate groups
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
- Paints Or Removers (AREA)
Abstract
La presente invencion se refiere a aductos de poliisocianatos que contienen grupos alofanato, fluor y opcionalmente grupos isocianurato que se preparan reaccionando compuestos a) que i) están sustancialmente libres de grupos hidroxilo y grupos isocianato, ii) tienen un promedio de al menos dos grupos uretano por molécula y iii) contienen de 0 a 50% en peso de fluor, en base al peso de los aductos de poliisocianato, con una cantidad excesiva, basada en los equivalentes de grupos uretano, de poliisocianatos b), que contienen opcionalmente fluor, para formar aductos de poliisocianato y eliminando opcionalmente al menos una porcion de los poliisocianatos excesivos sin reaccionar b), a condicion de que los compuestos a) y los poliisocianatos b) contengan un total de al menos 0,001% en peso de fluor en base al peso de los aductos de poliisocianato. La presente invencion también se refiere a un procedimiento para preparar dichos aductos de poliisocianatos, a mezclas de los aductos de poliisocianatos con otros poliisocianatos que no contienen fluor y al uso de los aductos de poliisocianato o mezclas de poliisocianatos, opcionalmente en forma bloqueada, en composiciones de recubrimiento de uno o dos componentes.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/764,891 US5747629A (en) | 1996-12-16 | 1996-12-16 | Low surface energy polyisocyanates and their use in one-or two-component coating compositions |
| US08764891 | 1996-12-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MX9710054A true MX9710054A (es) | 1998-06-30 |
| MXPA97010054A MXPA97010054A (es) | 1998-10-30 |
Family
ID=
Also Published As
| Publication number | Publication date |
|---|---|
| DE69724389T2 (de) | 2004-06-24 |
| EP0848023A1 (en) | 1998-06-17 |
| JPH10176026A (ja) | 1998-06-30 |
| EP0848023B1 (en) | 2003-08-27 |
| US5747629A (en) | 1998-05-05 |
| DE69724389D1 (de) | 2003-10-02 |
| CA2221827A1 (en) | 1998-06-16 |
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