申请人:Showa Denko K.K.
公开号:US05296554A1
公开(公告)日:1994-03-22
An adhesive resin composition comprises (A) 2 to 98% by weight of an ethylene copolymer resin containing 0.01 to 20% by weight of the unit of an unsaturated carboxylic acid anhydride in the main chain; and (B) 98 to 2% by weight of a resin mixture comprising (i) 50 to 90% by weight of a copolymer resin of ethylene/vinyl acetate, (ii) 40 to 9.5% by weight of a binary copolymer resin of ethylene and an .alpha.-olefin having 3 to 12 carbon atoms, and (iii) 10 to 0.5% by weight of an ethylene/propylene/unconjugated diene terpolymer. The resin mixture is obtained by mixing (i), (ii) and (iii) in a molten state and has a toluene extraction residue of 10 to 60% by weight. The adhesive resin composition is utilized as an adhesive material between layers of a multi-layer laminate and scrap or waste material from the adhesive resin composition or from the multilayer laminate can be recycled as an adhesive resin composition having excellent interlayer strength and compatibility.
一种粘合树脂组合物包括(A)2-98重量%的乙烯共聚树脂,其中含有0.01-20重量%的不饱和羧酸酐单元于主链中;以及(B)98-2重量%的树脂混合物,包括(i)50-90重量%的乙烯/醋酸乙烯共聚树脂,(ii)40-9.5重量%的乙烯和具有3-12个碳原子的α-烯烃的二元共聚树脂,以及(iii)10-0.5重量%的乙烯/丙烯/非共轭二烯三元共聚物。树脂混合物是通过在熔融状态下混合(i)、(ii)和(iii)获得的,并具有10-60重量%的甲苯萃取残留物。该粘合树脂组合物被用作多层层压板之间的粘合材料,从粘合树脂组合物或多层层压板的废料或废弃物可以回收成具有优异层间强度和相容性的粘合树脂组合物。