Silicone modified polyurea
AssigneeReactamine Technology, LLC
InventorStuart Smith
Life of this patent
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Abstract
The present invention includes a novel polyol prepolmer including an aliphatic amine, aromatic amine, or a mixture of both aliphatic and aromatic amines with an epoxy functional silicone to produce the novel polyol prepolymer chain extender. In another aspect of the invention, the novel polyol prepolymer chain extender is reacted with a polyisocyanate to produce a novel silicone modified polyurea having improved adhesion, chemical resistance, UV stability, and decreased shrinkage properties.
Claims34
A polyol prepolymer chain extender for a silicone modified polyurea comprising:
- at least one secondary polyether amine;
- at least one epoxy functional silicone;
- and
- a caprolactone monomer.
A silicone modified polyurea comprising:
- a B-component which includes at least one polyol prepolymer chain extender which comprises:
- at least one secondary polyether amine;
- at least one epoxy functional silicone;
- a caprolactone monomer;
- and
- an A-component which comprises at least one polyisocyanate.
A ballistic protection panel comprising:
- a first silicone modified polyurea layer defining a plane comprising:
- a B-component which includes at least one polyol prepolymer chain extender which comprises:
- at least one secondary polyether amine;
- at least one epoxy functional silicone;
- a caprolactone monomer;
- and
- an A-component which comprises at least one polyisocyanate;
- a second silicone modified polyurea layer substantially parallel to said plane of said first silicone modified polyurea layer comprising:
- a B-component which includes at least one polyol prepolymer chain extender which comprises:
- at least one secondary polyether amine;
- at least one epoxy functional silicone;
- a caprolactone monomer;
- and
- an A-component which comprises at least one polyisocyanate;
- and
- a first layer of a plurality barrels interposed between said first silicone modified polyurea layer and said second silicone modified polyurea layer, said barrels having a substantially curved side substantially adjacent to said first silicone modified polyurea layer and said second silicone modified polyurea layer.
A polyol prepolymer chain extender for a silicone modified polyurea comprising:
- at least one secondary polyether amine;
- and
- a caprolactone monomer.
A method of making a ballistic protection panel comprising:
- combining an adduct of at least one amine selected from the group consisting of secondary polyether amines, secondary aliphatic amines, and mixtures thereof, with at least one epoxy functional silicone to form a solution;
- reacting said solution to form a polyol prepolymer chain extender, wherein said reacting comprises heating said solution at a temperature in the range of from 130° F. to 210° F. for a time period of from 1 hour to 24 hours;
- mixing said polyol prepolymer chain extender with at least one polyisocyanate to form a silicone modified polyurea;
- forming a first silicone modified polyurea layer from said silicone modified polyurea;
- forming a first layer of a plurality of substantially rod-shaped pieces interposed adjacent to said first silicone modified polyurea layer;
- and
- forming a second silicone modified polyurea layer adjacent to said first layer of a plurality of substantially rod-shaped pieces.
A silicone modified polyurea comprising:
- a B-component which includes at least one polyol prepolymer chain extender which comprises:
- at least one secondary polyether amine;
- and
- a caprolactone monomer;
- and
- an A-component which comprises at least one polyisocyanate.
Dependencies are inferred from the claim text.