Durable, electrically conductive transparent polyurethane compositions and methods of applying same
AssigneeGKN Aerospace Transparency Systems, Inc.
InventorsJieming Li, Stephen Sandlin, Marlowe Moncur
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Abstract
A polyurethane composition suitable for coating a surface of a substrate. The polyurethane composition can include an aliphatic polyester urethane matrix and a fluorinated ionic antistatic additive. The aliphatic polyester urethane matrix can comprise an aliphatic diisocyanate, a polyester polyol having a polyester diol and a polyester triol, and sulfonated polyester urethane polyol.
Claims30
A polyurethane composition suitable for coating a surface of a substrate, the composition comprising:
- an aliphatic polyester urethane matrix and a fluorinated ionic antistatic additive, the aliphatic polyester urethane matrix comprising:
- an aliphatic diisocyanate,
- a polyester polyol having a polyester diol and a polyester triol, and
- a sulfonated polyester urethane polyol.
A method of preparing a polyurethane composition suitable for coating a surface of a substrate, the method comprising:
- mixing a polyester diol and a polyester triol with a sulfonated polyester urethane dispersion to form a homogeneous sulfonated polyol mix;
- and
- mixing the homogenous sulfonated polyol mix with components comprising an aliphatic diisocyanate, a fluorinated ionic antistatic additive, and a catalyst, to form the polyurethane coating composition.
A laminate comprising:
- a coating disposed on a surface of a substrate, wherein the coating comprises a polyurethane composition comprising:
- an aliphatic polyester urethane matrix and a fluorinated ionic antistatic additive, the aliphatic polyester urethane matrix comprising:
- an aliphatic diisocyanate,
- a polyester polyol having a polyester diol and a polyester triol, and
- a sulfonated polyester urethane polyol.
Dependencies are inferred from the claim text.