Thermoplastic polymer structure and methods for making the same
AssigneeDelStar Technologies, Inc.
InventorJames Galica
Life of this patent
Estimating the term…
Abstract
A composition and a method for manufacturing the composition are provided that includes a thermoplastic polyurethane (TPU) and a second component in an amount in the range of about 3% to about 60% by weight of the composition. The second component includes at least one reactive diluent, monomer, or oligomer (RDMO). The RDMO and/or the TPU may be cross-linked to form a semi-interpenetrating polymer network or an interpenetrating polymer network. The RDMO provides improved physical properties, such as rigidity, durability and strength, to the TPU. The polymer network may be bonded to other layers for certain applications, such as windows and flooring, to improve flexibility and strength, inhibit shattering and/or resist scratching and staining.
Claims28
A composition comprising:
- a thermoplastic polyurethane (TPU);
- a second component cross-linked with the TPU and present in an amount of about 3% by weight to about 20% by weight of the composition, wherein the second component is selected from the group consisting of difunctional acrylate, trifunctional acrylate and tri-allyl isocyanurate;
- and
- wherein the composition is configured to have a Young's Modulus of greater than about 10.0 megapascals (MPa) for a load duration of one second at 30° C.
A composition comprising:
- a thermoplastic polyurethane (TPU);
- a second component in an amount of about 3% by weight to about 20% by weight of the composition, wherein the second component is selected from the group consisting of a monofunctional acrylate, difunctional acrylate, trifunctional acrylate, monofunctional methacrylate, difunctional methacrylate, trifunctional methacrylate, an acrylate or methacrylate having four to six functional groups, pentaerythrityl triacrylate, polyhedral oligomeric silsequioxane, and tri-allyl isocyanurate;
- a thermal curing agent that cross-links the second component with the TPU, wherein the thermal curing agent comprises peroxide;
- and
- wherein the composition is configured to have a Young's Modulus of greater than about 10.0 megapascals (MPa) for a load duration of one second at 30° C.
A laminate structure comprising:
- a first layer;
- a second layer comprising thermoplastic polyurethane (TPU), a second component cross-linked with the TPU and present in an amount of about 3% by weight to about 20% by weight of the second layer, the second component being selected from the group consisting of difunctional acrylate, trifunctional acrylate and tri-allyl isocyanurate;
- and
- wherein the second layer is configured to have a Young's Modulus of greater than about 10.0 megapascals (MPa) for a load duration of one second at 30° C.
Dependencies are inferred from the claim text.