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US 5,516,843 AGranted
Adhesion promoter composition and products
AssigneeFiber Resin Corp.
InventorSteven L. Scholl
Life of this patent
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Abstract
An adhesion promoter composition and method for enhancing adhesion between a polysulfide polymer and a thermoplastic substrate is provided having a solid resole phenolic resin and a compatible organic solvent, optionally containing a chlorinated polyolefin.
Claims20
A polysulfide-coated substrate comprising:
- (a) a thermoplastic substrate;
- (b) an adhesion promoter layer coated on at least one surface of the thermoplastic substrate;
- and
- (c) a polysulfide polymer layer coated on the adhesion promoter layer;
- wherein the adhesion promoter comprises a cured solid resole phenolic resin.
2 more elements
A method of promoting adhesion of a polysulfide sealant to a thermoplastic substrate;
- said method comprising:
- (a) applying an adhesion promoter composition to at least one surface of the thermoplastic substrate;
- (b) drying the adhesion promoter composition to form a cured layer of the adhesion promoter;
- and
- (c) applying a polysulfide polymer to the thermoplastic substrate having the adhesion promoter coated thereon;
- wherein the adhesion promoter composition comprises:
- (i) a solid phenolic resin;
- and
- (ii) a compatible polar organic solvent.
6 more elements
An adhesion promoter composition for improving the adhesion of a polysulfide to a thermoplastic substrate comprising:
- (a) a solid resole phenolic resin;
- (b) a chlorinated polyolefin;
- and
- (c) a compatible polar solvent;
- wherein the solid resole phenolic resin and chlorinated polyolefin are present in the composition in amounts such that the ratio of solid resole phenolic resin to chlorinated polyolefin in the dried composition is at least about 3:1.
2 more elements
Dependencies are inferred from the claim text.