Water-based urethane adhesive
First Claim
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1. A water-based adhesive composition, comprising an admixture of:
- a first aliphatic water-based urethane resin that is the reaction product of polycaprolactonediol or polycaprolactonetriol, 4,4-methylene bis(cyclohexyl isocyanate), and dimethylolpropionic acid extended with a diamine, said first aliphatic water-based urethane resin comprising from about 99 to about 20 percent by weight of said composition; and
a second aliphatic water-based urethane resin that is the reaction product of 2,6-hexanediol, 4,4-methylene bis(cyclohexyl isocyanate), and dimethylolpropionic acid extended with a diamine, said second aliphatic water-based urethane resin comprising from about 1 to about 80 percent by weight of said composition.
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Abstract
The present invention is directed to a water-based adhesive composition comprising an admixture of a first aliphatic water-based urethane resin that is the reaction product of polycaprolactonediol or polycaprolactonetriol, 4,4-methylene bis(cyclohexylisocyanate), and dimethylolpropionic acid extended with a diamine, and a second aliphatic water-based urethane resin that is the reaction product of 2,6-hexanediol, 4,4-methylene bis(cyclohexylisocyanate), and dimethylolpropionic acid extended with a diamine. The first aliphatic water-based urethane resin comprises from about 99 to about 20 percent by weight of the composition, and the second aliphatic water-based urethane resin comprises from about 1 to about 80 percent by weight of the composition. The invention is also directed to methods of adhering a substrate and a workpiece using the adhesive composition of the invention.
38 Citations
21 Claims
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1. A water-based adhesive composition, comprising an admixture of:
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a first aliphatic water-based urethane resin that is the reaction product of polycaprolactonediol or polycaprolactonetriol, 4,4-methylene bis(cyclohexyl isocyanate), and dimethylolpropionic acid extended with a diamine, said first aliphatic water-based urethane resin comprising from about 99 to about 20 percent by weight of said composition; and a second aliphatic water-based urethane resin that is the reaction product of 2,6-hexanediol, 4,4-methylene bis(cyclohexyl isocyanate), and dimethylolpropionic acid extended with a diamine, said second aliphatic water-based urethane resin comprising from about 1 to about 80 percent by weight of said composition. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A water-based adhesive composition, comprising an admixture of:
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a first aliphatic water-based urethane resin that is the reaction product of polycaprolactonediol or polycaprolactonetriol, 4,4-methylene bis(cyclohexyl isocyanate), and dimethylolpropionic acid extended with a diamine, said first aliphatic water-based urethane resin comprising from about 99 to about 20 percent by weight of said composition; a second aliphatic water-based urethane resin that is the reaction product of 2,6-hexanediol, 4,4-methylene bis(cyclohexyl isocyanate), and dimethylolpropionic acid extended with a diamine, said second aliphatic water-based urethane resin comprising from about 1 to about 80 percent by weight of said composition; and a tackifier comprising about 3.5 to about 7.5 percent by weight of said composition. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A water-based adhesive composition, comprising:
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about 68% by weight Q-THANE QW20-1; about 26% by weight Q-THANE QW18-1; about 5.5% by weight TACOLYN 1085; about 0.005% by weight butoxyethanol; about 0.005% by weight Dow Corning #62 defoamer; and about 0.005% by weight Silwet surfactant.
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16. A method of adhering a workpiece to a substrate, comprising the steps of:
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a) applying an adhesive composition to a substrate, said adhesive composition comprising an admixture of; a first aliphatic water-based urethane resin that is the reaction product of polycaprolactonediol or polycaprolactonetriol, 4,4-methylene bis(cyclohexyl isocyanate), and dimethylolpropionic acid extended with a diamine, said first aliphatic water-based urethane resin comprising from about 99 to about 20 percent by weight of said composition; a second aliphatic water-based urethane resin that is the reaction product of 2,6-hexanediol, 4,4-methylene bis(cyclohexyl isocyanate), and dimethylolpropionic acid extended with a diamine, said second aliphatic water-based urethane resin comprising from about 1 to about 80 percent by weight of said composition; and a tackifier comprising about 0.1 to about 20 percent by weight of said composition; b) drying said adhesive composition at a temperature of from 400°
to 600°
F. for from between 30 min and 10 sec; andc) adhering said workpiece to said substrate. - View Dependent Claims (17, 18, 19, 20, 21)
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Specification
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Current AssigneeGBC Metals LLC
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Original AssigneeOLIN Corporation
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InventorsSagiv, Efraim
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Primary Examiner(s)Short, Patricia A.
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Application NumberUS08/744,288Time in Patent Office377 DaysField of Search524/270, 524/271, 524/507, 524/539, 524/591, 156/331.7US Class Current156/331.7CPC Class CodesC08G 18/0823 containing carboxylate salt...C08G 18/12 using two or more compounds...C08G 18/3225 PolyaminesC08G 18/6659 with compounds of group C08...C08G 2170/80 Compositions for aqueous ad...C08L 75/04 PolyurethanesC09J 175/12 from compounds containing n...
