초록 ▼

Chemically blended thermoplastic interpenetrating polymer network compositions, of improved physical and mechanical properties as compared to their mechanically blended counterparts, are produced by forming a solution or mixture of polymeric components and polymerizing in situ, with materials capabl

Chemically blended thermoplastic interpenetrating polymer network compositions, of improved physical and mechanical properties as compared to their mechanically blended counterparts, are produced by forming a solution or mixture of polymeric components and polymerizing in situ, with materials capable of forming physical crosslinks, through mechanisms including block copolymers, ionomeric crosslinking and the incorporation of crystalline regions in semicrystalline homopolymers. The resultant products are in the nature of thermoset materials at room temperature but become thermoplastic at elevated temperatures.

대표청구항 ▼

A composition comprised of at least two polymers, the second of which is polymerized in the presence of the first of said polymers in a mutual solution of said first polymer and a prepolymer or monomer of said second polymer, at least one of said polymers comprising a continuous phase within said co

A composition comprised of at least two polymers, the second of which is polymerized in the presence of the first of said polymers in a mutual solution of said first polymer and a prepolymer or monomer of said second polymer, at least one of said polymers comprising a continuous phase within said composition, said polymers being crosslinked by a non-covalent bonding mechanism selected from the group consisting of (a) ionomeric attraction; and (b) block copolymers, each having at least three blocks, at least one of said blocks comprising an elastomeric block and at least two of said blocks comprising physically crosslinked glassy blocks, crystalline blocks, or hydrogen bonded blocks, wherein one of said polymers is a triblock copolymer containing monoalkenyl arene polymer end blocks and the other of said polymers is a monoalkenyl arene monomer copolymerized with an acid forming mer, further wherein from 10 to 100% of said mer is first neutralized by one of an alkali or alkaline earth hydroxide or amine, said polymers forming interpenetrating polymer networks, said composition being thermoplastic and having phase domain regions with maximum cross sections below 500 Nanometers.