| 摘要 |
PCT No. PCT/CH95/00221 Sec. 371 Date Sep. 9, 1996 Sec. 102(e) Date Sep. 9, 1996 PCT Filed Oct. 2, 1995 PCT Pub. No. WO96/11229 PCT Pub. Date Apr. 18, 1996Subjects of the invention are new crosslinking agents for polymers with acid anhydride groups on the basis of amines or polyamines that are adsorbed on anhydrous molecular sieve powder. In blends with the polymers containing acid anhydride groups and under water-free conditions, the new crosslinkers form crosslinkable polymer systems that are storage-stable at room temperature. The crosslinking reaction is triggered by water or elevated temperature, leading to desorption of the amines by the molecular sieve powder and reaction with the anhydride groups. The crosslinking products are very soft to hard compositions with different tensile strength, tear resistance, permanent set, glass transition temperature, heat resistance, adhesion, tackiness and chemical resistance. The polymer systems can be used in the manufacture of molding compositions, coating compositions, foams, adhesive compositions, hot melt compositions and sealant compositions.
|
