摘要:
A solventless laminating adhesive comprising a polyisocyanate component and a polyol component, both of which are free from polyol components exhibiting crystalline properties at ordinary temperatures. The adhesive exhibits an initial viscosity of 500 to 1000 mPa s three minutes after mixing of the polyisocyanate component with the polyol component and a viscosity increase of 100 to 350% based on the initial viscosity 20 minutes after the mixing. In a coater which is provided with a pair of opposed rolls and in which the rolls rotates in the directions contrary to each other at the opposition site, the adhesive is applied to a film passing between the rolls.
摘要:
Adhesive composition and a flexible packaging composite film that can produce a reduced amount of low-molecular-weight compounds eluted into contents of a composite film to prevent spoilage of inherent properties or performances of the contents, can produce improved oil resistance to prevent significant reduction in strength even when used for oily contents, and can develop favorable flexibility of the composite film to prevent reduction in peel strength. Polyester polyamide polyol and/or polyurethane polyester polyamide polyol including an amide bond produced by reaction between a dimer acid and polyamine is prepared as a polyol component and also concentration of a cyclic compound formed by the amide bond and/or an ester bond in extracted water which is extracted from a composite film adhesively bonded by the adhesive composition by water of 0.5 mL/cm2 per unit area of the composite film is set to be 0.5 ppb or less in terms of dibutyl phthalate concentration measured with a gas chromatograph-flame ionization detector.
摘要翻译:粘合剂组合物和柔性包装复合膜可以产生减少量的低分子量化合物洗脱到复合膜的内容物中,以防止内含物的固有性质或性能的变质,可以产生改善的耐油性以防止显着降低 即使用于油性物质,也能够发挥复合膜的柔软性,防止剥离强度降低。 制备包含通过二聚酸和多胺反应生成的酰胺键的聚酯聚酰胺多元醇和/或聚氨酯聚酯聚酰胺多元醇作为多元醇成分,还可以将萃取水中通过酰胺键和/或酯键形成的环状化合物的浓度 从复合膜的每单位面积的0.5mL / cm 2的水用粘合剂组合物粘合的复合膜中提取的复合膜的浓度以测量的邻苯二甲酸二丁酯浓度计为0.5ppb以下 用气相色谱 - 火焰离子化检测器。
摘要:
A laminate adhesive that can suppress elution of a low molecular weight compounds of a composite film into the content, so as to prevent the inherent properties or performances of the content from being spoiled by the low molecular weight compounds. In the laminate adhesive, the polyester polyol contains naphthalenedicarboxylic acid and/or alkyl ester thereof as an acid component, and concentration of cyclic ester compounds in extracted water, which are extracted from a composite film bonded by the laminate adhesive by water of 0.5 mL/cm2 per unit area of the composite film, is 0.5 ppb or less in terms of dibutyl phthalate concentration measured by a gas chromatograph-flame ionization detector.
摘要:
[Solution to Problem] The laminating adhesive of the present invention includes a polyisocyanate component (A) and a polyol component (B), wherein the polyisocyanate component (A) contains a polyisocyanate (A1) that does not contain an aromatic ring, and the polyol component (B) contains a macropolyol (B1) that does not contain an aromatic ring but contains a cyclohexane ring.
摘要:
A laminating adhesive includes a polyol; an acid-modified polyol obtained by reaction of a hydrophobic polyol containing a hydrocarbon moiety having 12 to 80 carbon atoms in its molecule in an amount of 30 to 95% by weight or a derivative thereof with an aromatic polycarboxylic acid anhydride and having a carboxyl group at a molecular terminal thereof; an organic polyisocyanate compound; and a silane coupling agent.A laminating adhesive film is excellent even after high-temperature sterilization treatment in adhesion performance between a metal foil or a barrier film and a plastic film serving as an inner layer, and also in adhesion performance between a metal foil or a barrier film and a plastic film serving as an outer layer.
摘要:
[Solution to Problem] The laminating adhesive of the present invention includes a polyisocyanate component (A) and a polyol component (B), wherein the polyisocyanate component (A) contains a polyisocyanate (A1) that does not contain an aromatic ring, and the polyol component (B) contains a macropolyol (B1) that does not contain an aromatic ring but contains a cyclohexane ring.
摘要:
A solventless laminating adhesive comprising a polyisocyanate component and a polyol component, both of which are free from polyol components exhibiting crystalline properties at ordinary temperatures. The adhesive exhibits an initial viscosity of 500 to 1000 mPa s three minutes after mixing of the polyisocyanate component with the polyol component and a viscosity increase of 100 to 350% based on the initial viscosity 20 minutes after the mixing. In a coater which is provided with a pair of opposed rolls and in which the rolls rotates in the directions contrary to each other at the opposition site, the adhesive is applied to a film passing between the rolls.
摘要:
Polyurethane resin compositions include a urethane prepolymer with an active hydrogen group and a polyisocyanate, or a urethane prepolymer with an isocyanate group and an active hydrogen compound. The urethane prepolymers having an active hydrogen group or an isocyanate group are obtained by reacting an allophanate group-containing polyisocyanate with a side-chain hydrocarbon group of 5 or more carbon atoms and a bifunctional or polyfunctional active hydrogen compound. Particularly preferably, the allophanate group-containing polyisocyanate is obtained by reacting a C5 or higher carbon number compound having an alcoholic hydroxyl group and an organic diisocyanate, in the presence of an organic bismuth carboxylate and an organic phosphite triester. The polyurethane resin compositions are suited for use as adhesives for bonding low-polarity resin bases such as polyolefin films.
摘要:
To provide a laminate adhesive that can keep on having adequate adhesiveness and also can prevent the odor and taste of the inherent properties of the content packed by the packing product from being spoiled even after high temperature sterilization treatment, such as the hot-water spray sterilization treatment, the hot-water rotary sterilization treatment or the steam sterilization treatment, to provide a usage of the laminate adhesive, the laminate adhesive comprises a curing component containing polyisocyanate and a base component containing polyol, wherein a silane coupling agent is contained in at least the curing component. Preferably, the silane coupling agent is mixed with both of the curing component and the base component. Further preferably, epoxysilane is mixed with the curing component and also aminosilane and oxyacid of phosphorus or derivative thereof are mixed with the base component.
摘要:
[Solution to Problem] The laminating adhesive of the present invention includes a polyisocyanate component (A) and a polyol component (B), wherein the polyisocyanate component (A) contains a polyisocyanate (A1) that does not contain an aromatic ring, and the polyol component (B) contains a macropolyol (B1) that does not contain an aromatic ring but contains a cyclohexane ring.