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US 2011/0062424 A1Published application
Polymer compositions comprising additive block copolymers
AssigneeNitto Denko Corporation
InventorsStephen James Grunzinger, Amane Mochizuki
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Abstract
Disclosed herein are some embodiments related to a polymer composition comprising a base polymer and a block copolymer additive. Laminated constructs, methods of preparing the polymer compositions and the laminate constructs, and devices related thereto are also disclosed.
Claims30
A polymer composition comprising:
- a base polymer;
- and
- a block copolymer additive comprising at least one polysiloxane block and at least one functional block, wherein the functional block comprises at least one branched repeat unit and at least one polarizable organic functionality comprising at least one of:
- oxygen, nitrogen, sulfur, and a carbon-carbon multiple bond;
- wherein the polymer composition has at least one surface, and the surface of the polymer composition has a greater concentration of the block copolymer additive than polymer composition which is not present at the surface;
- and
- wherein the weight ratio of base polymer to block copolymer additive is at least about 9 to 1.
4 more elements
A laminated construct comprising:
- a first solid polymer comprising silicone and an additive comprising a block copolymer, wherein the block copolymer comprises at least one polysiloxane block and at least one functional block, wherein the functional block comprises at least one branched repeat unit;
- and
- a second solid polymer attached to the first solid polymer at an interface, wherein the attachment between the first solid polymer and the second solid polymer comprises covalent bonding between the functional block of the additive and the second solid polymer at the interface.
A method of preparing a laminate of at least two different solid polymers, comprising:
- providing a first polymer comprising silicone;
- mixing a block copolymer additive with the first polymer to form a mixed polymer, wherein the block copolymer additive comprises at least one polysiloxane block and at least one functional block;
- concentrating the functional block at a surface of the mixed polymer;
- reacting the functional block concentrated at the surface of the mixed polymer with a surface of a second polymer to form an amount of covalent bonds effective to provide enhanced adhesion between the surface of the mixed polymer and the surface of the second polymer;
- wherein, if either the mixed polymer or the second polymer is not a solid, each polymer is capable of solidifying after the functional block has concentrated at the surface.
2 more elements
Dependencies are inferred from the claim text.