公开(公告)号：EP0370501A3

公开(公告)日：1992-03-04

申请号：EP89121619.4

申请日：1989-11-23

Applicant: ELF ATOCHEM NORTH AMERICA, INC.

Inventor： Sargent, James David ,  Kamath, Vasanth Rathnakar

IPC: C08F8/00 ,  C09D133/14

CPC classification number: C09D133/14 ,  C08F8/30 ,  C08F2800/20 ,  C08K5/20 ,  C09D7/48 ,  C08F2220/1825

Abstract: Acrylic coating resins with attached light stabilizer functional groups are provided, which resins are prepared by reacting light stabilizer hydrazides, LS-C(=O)-NR³-NH₂, with an acrylic prepolymer containing at least two different types of reactive functional groups, one of which is a hydroxyalkyl ester group and the other is carboxyl, anhydride, epoxy or isocyanate. LS is a light stabilizer moiety, e.g., of formula

wherein R³ is, e.g., hydrogen and R¹⁵ is, e.g., a direct bond. The reaction may be carried out in an inert solvent or in the bulk state. The acrylic resins so produced are particularly useful in the stabilization of enamel or lacquer coatings and exhibit outstanding weatherability and durability. As a result of being chemically bound, the light stabilizers are resistant to loss due to volatility and extractability during typical coatings bake operations and exposure to the elements of weather.

公开(公告)号：EP0370501B1

公开(公告)日：1995-04-05

申请号：EP89121619.4

申请日：1989-11-23

Applicant: ELF ATOCHEM NORTH AMERICA, INC.

Inventor： Sargent, James David ,  Kamath, Vasanth Rathnakar

IPC: C08F8/00 ,  C09D133/14

CPC classification number: C09D133/14 ,  C08F8/30 ,  C08F2800/20 ,  C08K5/20 ,  C09D7/48 ,  C08F2220/1825

Abstract: Acrylic coating resins with attached light stabilizer functional groups are provided, which resins are prepared by reacting light stabilizer hydrazides, LS-C(=O)-NR -NH2, with an acrylic prepolymer containing at least two different types of reactive functional groups, one of which is a hydroxyalkyl ester group and the other is carboxyl, anhydride, epoxy or isocyanate. LS is a light stabilizer moiety, e.g., of formula wherein R is, e.g., hydrogen and R is, e.g., a direct bond. The reaction may be carried out in an inert solvent or in the bulk state. The acrylic resins so produced are particularly useful in the stabilization of enamel or lacquer coatings and exhibit outstanding weatherability and durability. As a result of being chemically bound, the light stabilizers are resistant to loss due to volatility and extractability during typical coatings bake operations and exposure to the elements of weather.

公开(公告)号：EP0370501A2

公开(公告)日：1990-05-30

申请号：EP89121619.4

申请日：1989-11-23

Applicant: ELF ATOCHEM NORTH AMERICA, INC.

Inventor： Sargent, James David ,  Kamath, Vasanth Rathnakar

IPC: C08F8/00 ,  C09D133/14

CPC classification number: C09D133/14 ,  C08F8/30 ,  C08F2800/20 ,  C08K5/20 ,  C09D7/48 ,  C08F2220/1825

Abstract: Acrylic coating resins with attached light stabilizer functional groups are provided, which resins are prepared by reacting light stabilizer hydrazides, LS-C(=O)-NR³-NH₂, with an acrylic prepolymer containing at least two different types of reactive functional groups, one of which is a hydroxyalkyl ester group and the other is carboxyl, anhydride, epoxy or isocyanate. LS is a light stabilizer moiety, e.g., of formula

wherein R³ is, e.g., hydrogen and R¹⁵ is, e.g., a direct bond. The reaction may be carried out in an inert solvent or in the bulk state.
The acrylic resins so produced are particularly useful in the stabilization of enamel or lacquer coatings and exhibit outstanding weatherability and durability. As a result of being chemically bound, the light stabilizers are resistant to loss due to volatility and extractability during typical coatings bake operations and exposure to the elements of weather.

Abstract translation: 提供具有附着的光稳定剂官能团的丙烯酸涂料树脂，该树脂通过使稳定剂酰肼LS-C（= O）-NR 3 -NH 2与含有至少两种不同类型的反应性官能团的丙烯酸类预聚物 基团，其中一个是羟烷基酯基，另一个是羧基，酸酐，环氧基或异氰酸酯。 LS是光稳定剂部分，例如式CHEM，其中R 3是例如氢，R 1 5是例如直接键。 该反应可以在惰性溶剂中或在大量状态下进行。 所生产的丙烯酸树脂特别可用于搪瓷或漆涂料的稳定化，并且具有出色的耐候性和耐久性。 作为化学结合的结果，光稳定剂由于在典型的涂层烘烤操作期间的挥发性和萃取性以及暴露于天气元素而具有耐损失性。