United States Patent
US Patent 7148308: One-part moisture-curing urethane composition
US 7148308 · granted 2006-12-12
Abstract
The present invention provides an one-part moisture-curable urethane composition which exhibits excellent adhesion particularly to a coated steel plate difficult to bond with no-primer and is useful in the bonding of automobile window glass. The urethane composition of the present invention comprises an isocyanate-terminated urethane prepolymer as the main component, and additional components comprising (A) a compound having solubility parameter value of 6.0 to 9.0 and/or (B) a compound having in the molecule at least one structure represented by the following formula: ##STR00001## (wherein n is 0 to 3).
| Patent Number | 7148308 |
|---|---|
| Title | One-part moisture-curing urethane composition |
| Filed | 2002-10-01 |
| Granted | 2006-12-12 |
| Inventor(s) | Inoue; Atsushi, Mayama; Yoshinori, Nakata; Yoshihiro |
| Assignee | Sunstar Giken Kabushiki Kaisha |
| CPC Classification | C08G 18/10 |
| Number of Claims | 21 |
Abstract
The present invention provides an one-part moisture-curable urethane composition which exhibits excellent adhesion particularly to a coated steel plate difficult to bond with no-primer and is useful in the bonding of automobile window glass. The urethane composition of the present invention comprises an isocyanate-terminated urethane prepolymer as the main component, and additional components comprising (A) a compound having solubility parameter value of 6.0 to 9.0 and/or (B) a compound having in the molecule at least one structure represented by the following formula: ##STR00001## (wherein n is 0 to 3).
Claim 1
A one-part moisture-curable urethane composition which comprises a) an isocyanate-terminated urethane prepolymer as a main component and b) additional componentscomprising (A) one or more compounds selected from the group consisting of an aliphatic hydrocarbon compound and an alkoxysilyl group-containing isobutylene polymer, the one or more compounds having a solubility parameter value of 6.0 to 9.0, and (B) acompound having in the molecule at least one structure represented by the following formula: ##STR00004## wherein n is 0 to 3.
Claims
21 totalA one-part moisture-curable urethane composition which comprises a) an isocyanate-terminated urethane prepolymer as a main component and b) additional componentscomprising (A) one or more compounds selected from the group consisting of an aliphatic hydrocarbon compound and an alkoxysilyl group-containing isobutylene polymer, the one or more compounds having a solubility parameter value of 6.0 to 9.0, and (B) acompound having in the molecule at least one structure represented by the following formula: ##STR00004## wherein n is 0 to 3.