Select metal salts of mono and di aromatic sulfonic acids and aliphatic sulfonic acids are effective latent acid catalysts in coating compositions capable of acid catalyzed crosslinking and provide coating compositions with lower cure temperature and quicker cure times than encountered with conventional sulfonic acid catalysts, have excellent storage stability and avoid drawbacks of epoxy and amine blocked sulfonic acid catalysts.
Curable coating compositions containing carbamate resin and additives
申请人:BASF CORPORATION
公开号:EP0710676A1
公开(公告)日:1996-05-08
Curable coating compositions are described comprising
(a) a polymer resin comprising carbamate functional groups,
(b) a curing agent having groups that are reactive with said functional groups on (a), and
(c) a compound having a molecular weight of from 75 to 2000 comprising at least one group of the formula:
wherein X is O or NH, R is H or alkyl of 1 to 4 carbon atoms, and either (a), (b), or both (a) and (b) comprise groups that are reactive with said group on (c).
所述固化涂层组合物包括
(a) 包含氨基甲酸酯官能团的聚合物树脂、
(b) 具有与 (a) 上所述官能团反应的基团的固化剂,以及
(c) 含有至少一个式中基团的分子量为 75 至 2000 的化合物:
其中 X 为 O 或 NH,R 为 H 或 1 至 4 个碳原子的烷基,且(a)、(b)或(a)和(b)均包含与(c)上所述基团反应的基团。
Curable coating compositions are described comprising
(a) a polymer resin comprising active hydrogen-containing functional groups other than carbamate,
(b) a curing agent having groups that are reactive with said functional groups on (a), and
(c) a compound having a molecular weight of from 75 to 2000 comprising at least one group of the formula:
wherein X is O or NH and either (a), (b), or both (a) and (b) comprise groups that are reactive with said group on (c).
所述固化涂层组合物包括
(a) 聚合物树脂,包含氨基甲酸酯以外的活性含氢官能团、
(b) 具有与 (a) 上所述官能团反应的基团的固化剂,以及
(c) 含有至少一个式基团的分子量为 75 至 2000 的化合物:
其中 X 为 O 或 NH,(a)、(b)或(a)和(b)均包含与(c)上所述基团反应的基团。
Multiple layer coating method
申请人:BASF CORPORATION
公开号:EP0738739A1
公开(公告)日:1996-10-23
A method of preparing a multilayer coating is described. The method comprises the steps of:
(1) applying onto a substrate a first curable coating composition comprising two components that are reactive with one another to form urethane linkages and a third component that includes one or more epoxy groups,
(2) curing the first curable coating composition to form a cured coating,
(3) applying a second curable coating composition onto the surface of the coating from step (2), and
(4) curing the second curable coating composition.
Coating composition containing carbamate functional and acrylamide functional components
申请人:BASF CORPORATION
公开号:EP0718332A2
公开(公告)日:1996-06-26
A coating composition including a first component comprising a compound having appended thereto more than one carbamate functional group, and further including a second component reactive with said carbamate groups, which is a substituted acrylamide compound. The composition is useful as a clearcoating composition in a color-plus-clear composite coating.