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AssigneeToray Industries, Inc.
InventorsSadayuki Kobayashi, Daisuke Sato, Masaru Akita, Hiroshi Jinnai, Takashi Inoue
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A thermoplastic resin composition includes a thermoplastic resin (A) and a reactive functional group-containing resin (B), which has a specific structure in the morphology of the resin composition observed by transmission electron microscopy tomography, and the relaxation time T1C of each carbon nucleus by the solid NMR measurement of the thermoplastic resin composition containing a polyamide resin is kept in a specific range. The composition is excellent in the balance between contradictory properties such as impact resistance and heat resistance, remarkably exhibits a peculiar viscoelastic behavior not observed in the conventional polymeric materials, and is remarkably excellent in impact energy absorbing performance and vibration energy absorbing performance at the time of high-speed deformation.
A thermoplastic resin composition comprising a thermoplastic resin (A) which is at least one selected from polyamide resins, polyester resins, polyphenylene sulfide resins, polyphenylene oxide resins and polycarbonate resins and a reactive functional group-containing resin (B) having a molecular chain, wherein reactive functional groups of the reactive functional group-containing resin (B) are at least one selected from amino groups, carboxyl groups, carboxyl metal salt, epoxy groups, acid anhydride groups and oxazoline groups, and the resin (B) has the reactive functional groups in the molecular chain, wherein the morphology of said resin composition observed by transmission electron microscopy tomography is such that either the resin (A) or the resin (B) forms a continuous phase, while the other resin forms a dispersed phase, that three-dimensionally connective structures (Cs) containing said continuous phase component are formed in the respective dispersed phase particles of said dispersed phase, and the area of said connective structures (CS) occupying a section of each dispersed phase particle Dp with an average particle size of 1,000 nm or less of said dispersed phase is 10% or more.
A thermoplastic resin composition comprising a polyamide resin (A1) which is at least one selected from polyamide resins, polyester resins, polyphenylene sulfide resins, polyphenylene oxide resins and polycarbonate resins and a reactive functional group-containing resin (B), having a molecular chain, wherein reactive functional groups of the reactive functional group-containing resin (B) are at least one selected from amino groups, carboxyl groups, carboxyl metal salt, epoxy groups, acid anhydride groups and oxazoline groups, and the resin (B) has the reactive functional groups in the molecular chain, wherein in a relaxation time T1C of each carbon nucleus as measured by solid NMR measurement, a longer relaxation time T1C among two relaxation times in a two-component analysis of a relaxation time corresponding to a carbon of each carbonyl group of the polyamide resin (A1) is 65 seconds or less, and a longer relaxation time T1C2 among two relaxation times in a two-component analysis of a relaxation time corresponding to a carbon of the hydrocarbon group adjacent to each NH group of the polyamide resin (A1) is 15 seconds or less.
Dependencies are inferred from the claim text.