| 摘要 |
Adhesive compositions having a reduced cure time and methods for making and using same are provided. In at least one specific embodiment, the adhesive composition can include a mixture of one or more phenolic-aldehyde resins and one or more cure accelerants. The one or more cure accelerants can be selected from the group consisting of: ammonia, ammonium hydroxide, one or more primary amines, one or more secondary amines, one or more tertiary amines, one or more alkanolamines, one or more aromatic amines, one or more polyamines, one or more amides, one or more polyamides, one or more compounds containing at least one amine functional group and at least one sulfur functional group, and any mixture thereof. In one or more embodiments, the adhesive composition can also include one or more hardeners. |
| 主权项 |
1. A composition, comprising a mixture of one or more phenolic-aldehyde resins and one or more cure accelerants selected from the group consisting of:
ammonia, ammonium hydroxide, one or more primary amines, one or more secondary amines, one or more tertiary amines, one or more alkanolamines, one or more aromatic amines, one or more polyamines, one or more amides, one or more polyamides, one or more compounds containing at least one amine functional group and at least one sulfur functional group, and any mixture thereof, wherein the one or more phenolic-aldehyde resins comprises at least two phenolic compounds selected from the group consisting of: phenol, resorcinol, hydroquinone, catechol, tannins, phloroglucinol, lignins, a bis-phenol, and humic acid, wherein the one or more phenolic-aldehyde resins has a molar ratio of an aldehyde component to a phenolic component of about 0.2:1 to about 0.9:1, wherein the composition is free of a hardener comprising one or more alkylene group donors, wherein the one or more phenolic-aldehyde resins has a pH of about 8.5 to about 11.5, and wherein the one or more phenolic-aldehyde resins and the one or more cure accelerants are substantially unreactive with one another in the absence of the hardener. |
