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US 5,120,379 AGranted
Sealant for double-layered glass
AssigneeKanegafuchi Kagaku Kogyo Kabushiki Kaisha
InventorsKoji Noda, Masavoshi Imanaka, Hiroshi Fujisawa, Hiroshi Wakabayashi
Life of this patent
Estimating the term…
Abstract
A sealant for double-layered glass contains a saturated hydrocarbon based polymer having at least one silicon-containing group that has a hydroxyl group or a hydrolyzable group bonded to a silicon atom and which is capable of crosslinking by forming siloxane bond.
Claims4
In the process of sealing at least two glass plates to each other while maintaining a space therebetween, the improvement which comprises:
- applying to at least portions of at least one of said glass plates a sealant comprising at least one substantially saturated hydrocarbon polymer selected from the group consisting of isobutylene polymer and hydrogenated polybutadiene polymer, said substantially saturated hydrocarbon polymer having a molecular weight of 1000-15000 and having 1.1-5 silicon containing groups that have at least one hydroxyl or hydrolyzable group bonded to a silicon atom, said silicon containing group being present at terminals of the molecular chain of the substantially saturated hydrocarbon polymer;
- superposing said glass plates together such that said sealant contacts both plates;
- and curing said sealant.
Dependencies are inferred from the claim text.