摘要:
Provided is a hydrogel composition including thermosensitive poly(phosphazene) to which a plurality of hydrophobic amino acids, hydrophilic polymers, and host molecules are substituted; and a physiologically active material linked to a guest molecule, wherein the poly(phosphazene) and the physiologically active material form a conjugate by inclusion of the guest molecule in the host molecule via a host-guest interaction. When injected into a living body, the hydrogel composition of the present disclosure slowly releases the physiologically active material and provides favorable conditions for stem cell differentiation. In addition, the hydrogel composition, in which the kind, ratio, and sequence of the physiologically active material are controlled to be suitable for stem cell differentiation, may be prepared with high reproducibility.
摘要:
A composition includes a polyphosphoric acid-modified acrylic polyol, wherein the polyphosphoric acid-modified acrylic polyol has greater than zero, but less than 1.0 wt % modification with polyphosphoric acid.
摘要:
Epoxy resins that are suitable for forming epoxy laminates that meet a UL-94 rating of v-0 comprise a hydroxy-terminated oligomeric phosphonate comprising the repeating structure -OP(=0)(R)OArylene-, where R is alkyl, as a flame retardant.
摘要:
Disclosed are new compositions consisting of mixtures of flame retardants for thermoplastic elastomers with the addition of phosphinate salt and phosphonate oligomers, polymers or copolymers, and optionally additional flame retardants. The compositions exhibit an excellent combination of processing characteristics, thermal and mechanical properties, and are flame retardant. Further disclosed are articles of manufacture produced from these materials, such as fibers, films, coated substrates, moldings, foams, fiber-reinforced articles, wires, and cables including these compositions, or any combination thereof.
摘要:
A composition includes specific amounts of an aromatic polycarbonate, a polycarbonate-polysiloxane block copolymer, a poly(alkylene terephthalate), a flame retardant, and a drip retardant. The flame retardant includes an oligomeric or polymeric bis(aryloxy)phosphazene in combination with an organophosphine oxide, an oligomeric or polymeric aromatic phosphonate, or a combination thereof. The composition is useful for fabricating parts for electrical and electronic devices.
摘要:
Provided is a polycarbonate resin composition, including: 100 parts by mass of (A) a resin mixture including a specific polycarbonate-polyorganosiloxane copolymer (A-1) and a specific polycarbonate-polyorganosiloxane copolymer (A-2), the component (A) having a content of the siloxane unit in the polycarbonate-polyorganosiloxane copolymer (A-1) of 1.0 mass% to 15.0 mass% and having a content of a siloxane unit in the polycarbonate-polyorganosiloxane copolymer (A-2) of 0.1 mass% to 2.8 mass%; and 0.01 to 0.08 part by mass of (B) at least one kind selected from an alkali metal salt of an organic sulfonic acid and an alkali earth metal salt of an organic sulfonic acid.
摘要:
Disclosed are new compositions consisting of mixtures of flame retardants for thermoplastic elastomers with the addition of phosphinate salt and phosphonate oligomers, polymers or copolymers, and optionally additional flame retardants. The compositions exhibit an excellent combination of processing characteristics, thermal and mechanical properties, and are flame retardant. Further disclosed are articles of manufacture produced from these materials, such as fibers, films, coated substrates, moldings, foams, fiber-reinforced articles, wires, and cables including these compositions, or any combination thereof.