摘要:
A method for coating a substrate and a coating device used therein that can smoothly form an adhesive layer on the surface of a substrate without roughening, is provided which do not require a drying process and is free of various problems such as sick house syndrome stemming from use of organic solvents. In addition, a method of producing a laminated object using the coating method and the laminated object obtained thereby are provided. In the method for coating a substrate to form an adhesive layer on one surface of the substrate, while the substrate is being conveyed by applying a hot melt adhesive in a melted state via a rotating applicator roller, with the direction of rotation of the applicator roller and the direction of conveying the substrate being the same, adhesive is applied to the substrate while slipping the applicator roller by setting the circumferential speed of the applicator roller to be at least 20% slower or at least 20% faster than the predetermined speed at which the substrate is conveyed.
摘要:
A method for coating a substrate and a coating device used therein that can smoothly form an adhesive layer on the surface of a substrate without roughening, is provided which do not require a drying process and is free of various problems such as sick house syndrome stemming from use of organic solvents. In addition, a method of producing a laminated object using the coating method and the laminated object obtained thereby are provided. In the method for coating a substrate to form an adhesive layer on one surface of the substrate, while the substrate is being conveyed by applying a hot melt adhesive in a melted state via a rotating applicator roller, with the direction of rotation of the applicator roller and the direction of conveying the substrate being the same, adhesive is applied to the substrate while slipping the applicator roller by setting the circumferential speed of the applicator roller to be at least 20% slower or at least 20% faster than the predetermined speed at which the substrate is conveyed.
摘要:
A moisture-curable polyurethane hot-melt adhesive, which includes a urethane prepolymer obtained by a reaction between polyisocyanate and polyols, wherein the polyols contain: long-chain aliphatic polyester polyol (A) represented by a general formula (I); aliphatic polyether polyol (B) having a number average molecular weight of 3,000 to 15,000; and aromatic polyester polyol (CI) which has a number average molecular weight of 1,000 to 5,000 and has a glass-transition temperature of 40° C. or more; (in the general formula (I), R1 and R2 each independently represent a straight chain alkylene group wherein the number of carbon atoms in the group is an even number, the sum of the number of carbon atoms in R1 and R2 is 12 or more, and n represents a number of 3 to 40).
摘要:
A moisture-curable polyurethane hot-melt adhesive, which includes a urethane prepolymer obtained by a reaction between polyisocyanate and polyols, wherein the polyols contain: long-chain aliphatic polyester polyol (A) represented by a general formula (I); aliphatic polyether polyol (B) having a number average molecular weight of 3,000 to 15,000; and aromatic polyester polyol (CI) which has a number average molecular weight of 1,000 to 5,000 and has a glass-transition temperature of 40° C. or more; (in the general formula (I), R1 and R2 each independently represent a straight chain alkylene group wherein the number of carbon atoms in the group is an even number, the sum of the number of carbon atoms in R1 and R2 is 12 or more, and n represents a number of 3 to 40).
摘要翻译:一种湿固化性聚氨酯热熔粘合剂,其包含通过多异氰酸酯和多元醇之间的反应获得的氨基甲酸酯预聚物,其中所述多元醇含有:由通式(I)表示的长链脂肪族聚酯多元醇(A); 数均分子量为3,000〜15000的脂肪族聚醚多元醇(B) 和数均分子量为1,000〜5000,玻璃化转变温度为40℃以上的芳香族聚酯多元醇(CI) (通式(I)中,R 1和R 2各自独立地表示直链亚烷基,其中该基团中的碳原子数为偶数, R 1和R 2中的碳原子数之和为12以上,n为3〜40的数。