Abstract: A non-aqueous laminate adhesive comprising a tertiary amino group-containing polyurethane resin (A) or a tertiary amino group- and carboxyl group-containing polyurethane resin (B) and a polyisocyanate curing agent. The resin (A) is obtained from (1) an active hydrogen group-containing compound comprising at least one or more kinds of tertiary amino group-containing glycols and (3) an organic polyisocyanate; and the resin (B) is obtained from (2) an active hydrogen group-containing compound comprising at least (a) one or more kinds of tertiary amino group-containing glycols and (b) one or more kinds of carboxyl group-containing glycols and (3) an organic polyisocyanate. The content of the tertiary amino group in the resin (A), the content of the tertiary amino group in the resin (B), and the carboxyl group in the resin (B) are each 0.001 to 1 mmol/g.

Abstract: A polyisocyanate curing agent comprising an isocyanate group-terminated prepolymer and a silane coupling agent represented by formula (2), OCN—(CH2)x—Si(OR′)3  (2) wherein R is an alkyl group having 1 to 5 carbon atoms and m and n is each an integer of 1 or more; and an adhesive for forming laminates based on the above polyisocyanate curing agent and an active hydrogen-group containing resin.

Abstract: A polyisocyanate curing agent for laminate adhesive, comprising: (A) an isocyanate group-terminated prepolymer having isocyanurate group and urethane group, obtained by reacting an organic polyisocyanate containing at least (a1) an aromatic diisocyanate with an active hydrogen group-containing compound containing at least (a2) a diol compound having a number-average molecular weight of 100 to 2,000, and, as an optional component, (B) an isocyanate group-terminated prepolymer having urethane group, and, also as an optional component, (C) a silane coupling agent represented by the following general formula (1): OCN—(CH2)m—Si(OR)3  (1)  (wherein R is a methyl group or an ethyl group, and m is an integer of 1 to 5); and a process for producing the polyisocyanate curing agent. The polyisocyanate curing agent is usable in a laminate adhesive which can be aged in a short time without shortening the pot life, which has good adhesivity, and which can withstand a severe retort treatment.

Abstract: A non-aqueous laminate adhesive comprising a tertiary amino group-containing polyurethane resin (A) or a tertiary amino group- and carboxyl group-containing polyurethane resin (B) and a polyisocyanate curing agent. The resin (A) is obtained from (1) an active hydrogen group-containing compound comprising at least a tertiary amino group- and hydroxyl group-containing compound and (3) an organic polyisocyanate; and the resin (B) is obtained from (2) an active hydrogen group-containing compound comprising at least a tertiary amino group- and hydroxyl group-containing compound and a carboxyl group- and hydroxyl group-containing compound and (3) an organic polyisocyanate. The content of the tertiary amino group in the resin (A), the content of the tertiary amino group in the resin (B), and the carboxyl group in the resin (B) are each 0.001 to 1 mmol/g.

Abstract: A polyisocyanate curing agent for laminate adhesive, comprising:

Abstract: A polyisocyanate curing agent comprising an isocyanate group-terminated prepolymer and a silane coupling agent represented by the following formula (2); and a laminate adhesive comprising the above polyisocyanate curing agent and an active hydrogen group-containing resin. The isocyanate group-terminated prepolymer can be obtained by reacting an organic polyisocyanate containing at least (c) an aliphatic polyisocyanate and/or an alicyclic polyisocyanate, with (a) a block polyether monool represented by the following formula (1) wherein the oxypropylene group content is larger than the oxyethylene group content and, optionally, (b) an active hydrogen group-containing aliphatic compound other than the compound (a).

Abstract: An adhesive for lamination which comprises a resin whose dynamic wettability to a film substrate is at least 0.20 mN alone or in combination with a polyisocyanate curing agent, said adhesive for lamination having a good adhesiveness to a film substrate such as a plastic film, a metal foil, a metallized film or paper.

Abstract: A polyisocyanate curing agent for a laminate adhesive, which comprises a hydrophilic polar group-containing polyisocyanate; a laminate adhesive excellent in heat-resistance, durability and adhesiveness to polyolefin film which adhesive comprises the above hydrophilic polar group-containing polyisocyanate and an active hydrogen-containing compound; and use of an adhesive comprising the above polyisocyanate curing agent and an active hydrogen-containing compound in film lamination.

Abstract: A self-emulsifiable polyisocyanate mixture which is of a non-yellowing type, is not deteriorated in weather resistance, has a high hardness and is quick-drying and which is obtained from a specific, NCO-terminated modified HDI and has introduced thereinto a specific, NCO-terminated modified IPDI or a specific, NCO-terminated modified TDI, and an aqueous coating or adhesive composition comprising the above self-emulsifiable polyisocyanate mixture.

Abstract: A one-component-type composition for a polyurethane elastomer, comprising as a main component a polyurethane precursor containing a polyisocyanate component, and a compound having active hydrogen groups. The polyisocyanate component contains a polyisocyanate having at least a urethodione group (particularly urethodione and isocyanurate groups), and the compound (polyol or the like) having active hydrogen groups contains at least two active hydrogen groups in its molecule and has a molecular weight of 18 to 20000. The polyurethane precursor is obtained by reacting the polyisocyanate component and the compound having active hydrogen groups under the condition that the equivalent ratio of the active hydrogen group in the compound having active hydrogen groups to the isocyanate group in the polyisocyanate component exceeds 1.0. The equivalent ratio of the urethodione group to the active hydrogen group in the polyurethane precursor is from 0.25 to 1.0.

Abstract: A one-component type polyurethane adhesive: comprising, as a main component, a polyurethane precursor prepared by reaction of a polyisocyanate component (a) containing one or more polyisocyanate compounds (a-1) mention below and optionally one or more polyisocyanates (a-2) mention below with an active hydrogen compound (b) having a molecular weight of from 18 to 20,000 and having two or more active hydrogen groups in the molecule, at an equivalent ratio of the active hydrogen group of the active hydrogen compound component (b) to the isocyanate group of the polyisocyanate component (a) of more than 1.0; the polyurethane precursor containing a uretdione group and the active hydrogen group at an equivalent ratio of the uretdione group to the active hydrogen groups of from 0.25 to 1.0,(a-1): a polyisocyanate compound having at least a uretdione group in the molecule thereof, and(a-2): a polyisocyanate having two or more isocyanate groups in the molecule thereof.

Abstract: The present invention is directed to a self-emulsifiable isocyanate-terminated prepolymer, having an average NCO functionality of from 2.0 to 3.5, which is prepared from: (a) a polyisocyanate mainly composed of at least one of aliphatic polyisocyanates, alicyclic polyisocyanates, and aromatic polyisocyanates, (b-1) a hydrophilic surfactant having at least one active hydrogen group capable of reacting with an isocyanate group, and (b-2) an aliphatic compound of 8 or more carbons, and/or a fatty acid ester in which the total of the carbons of a starting fatty acid and a starting hydroxyl-group-having compound is 8 or more, the aliphatic compound and the fatty acid ester having at least one active hydrogen group capable of reacting with the isocyanate group.