申请人:Rockwool International A/S
公开号:EP1889859A1
公开(公告)日:2008-02-20
A hydrophilic binder system for porous substrates, for instance, plant growth systems, is obtained by
(A) reacting at least one acid component selected from di- and polycarboxylic acids and anhydrides thereof and at least one polyhydroxy component selected from polyalkylene glycols, copolymers and derivatives thereof to form a polyalkylene glycol ester; and
(B) reacting the obtained polyalkylene glycol ester having carboxylic acid functionality with a phenolic resin.
一种用于多孔基质(例如植物生长系统)的亲水粘合剂系统通过以下方法获得
(A) 将至少一种选自二羧酸和多羧酸及其酸酐的酸组分与至少一种选自聚亚 烷二醇、其共聚物和衍生物的多羟基组分反应,形成聚亚烷基二醇酯;以及
(B) 将获得的具有羧酸官能度的聚亚烷基二醇酯与酚醛树脂反应。