申请人:BASF Akiengesellschaft
公开号:US20030078338A1
公开(公告)日:2003-04-24
The present invention relates to a solvent-free pigmented formulation comprising
I) a binder based on at least one copolymer P in an aqueous polymer dispersion obtainable by free-radical aqueous emulsion polymerization of a monomer mixture containing
a) from 45 to 69.95% by weight of at least one monomer a) whose homopolymer has a glass transition temperature T
g
of less than 20° C.,
b) from 30 to 54.95% by weight of at least one monomer b) whose homopolymer has a glass transition temperature T
g
of more than 50° C.,
c) from 0.05 to 1.5% by weight of itaconic acid and/or its anhydride and/or its salts, as acidic monomer c), and
d) from 0 to 2% by weight of at least one further monomer d),
the sum of the % by weight of a) to d) being 100% by weight,
II) at least one pigment,
III) at least one pigment dispersant having an acid number to DIN 53402 of less than 600,
IV) if desired, an inorganic filler, and
V) customary auxiliaries.
本发明涉及一种无溶剂颜料配方,包括
I) 基于至少一种共聚物 P 的粘结剂,该共聚物 P 存在于水性聚合物分散体中,该分散体可通过单体混合物的自由基水性乳液聚合获得,该单体混合物包含
a) 至少一种单体 a) 的重量百分比为 45%至 69.95%,其均聚物的玻璃化转变温度 T
g
低于 20 摄氏度
b) 至少一种单体 b 的重量百分比为 30 至 54.95%,其均聚物的玻璃化转变温度 T
g
大于 50 摄氏度
c) 以重量计 0.05 至 1.5%的衣康酸和/或其酸酐和/或其盐,作为酸性单体 c),以及
d) 0 至 2%(按重量计)的至少另一种单体 d)、
a) 至 d) 的重量百分比之和为 100%、
II) 至少一种颜料
III) 至少一种颜料分散剂,根据 DIN 53402 标准,其酸值小于 600、
IV) 无机填料(如需要),以及
V) 常规助剂。