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US 9,068,103 B2Granted
Waterproof silane-endcapped adhesive mixture
OwnerCarroll Benford Dickensinventor
Life of this patent
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Abstract
A polymeric matrix adhesive comprising a prepolymer urethane, a silane added to the prepolymer urethane, the silane reacts with the urethane to at least partially end-cap the urethane to produce a silane end-capped urethane, an aliphatic quencher, a reinforcing extender; and a thixotropic agent, wherein the polymeric matrix adhesive is waterproof.
Claims12
A method of producing a polymeric matrix adhesive, said method comprising:
- a) providing a silane end-capped polymeric mixture, wherein the silane end-capped polymeric mixture comprises a silane end-capped prepolymer urethane, wherein the silane end-capped prepolymer urethane is produced by combining a silane and a prepolymer urethane, wherein the prepolymer urethane has an average NCO content of between about 9 to 16;
- b) adding an aliphatic quencher;
- c) adding reinforcing extender;
- and
- d) adding a thixotropic agent;
- wherein the prepolymer urethane comprises a slow-cure urethane prepolymer having a functionality (Fn) between about 2.5 and 2.55 and an NCO content between about 15 to 18%, and a flexible binder urethane prepolymer having a functionality (Fn) of about 2 and an NCO content between about 7 and 10%;
- wherein the method produces the polymeric matrix adhesive such that the polymeric matrix adhesive is waterproof and pH-resistant.
4 more elements
Dependencies are inferred from the claim text.