Compositions and methods for amorphous high temperature polyketone polymers incorporating 2H-benzimidazol-2-one with dihalobenzophenone and bis(halobenzoyl)benzene as comonomer units are described herein. The polyketones polymers have advantageous properties, particularly in terms of high glass transition temperatures (T.sub.g), inherently flame resistance, good mechanical properties at elevated temperature, chemical resistance and dimensional stability in wet environment. The polymers are suitable for manufacturing high temperature molded systems and other articles of manufacture via injection molding, extrusion, compression molding, coating, blow molding, thermoforming, rotational molding and additive manufacturing.

A thermoplastic composite material includes a thermoplastic polymer matrix component, a microparticle component, a nanoparticle component, and a compatibilizing agent component, at least a portion of the microparticle component and/or nanoparticle component is a natural fiber.

A thermoplastic composite material includes a thermoplastic polymer matrix component, a microparticle component, a nanoparticle component, and a compatibilizing agent component, at least a portion of the microparticle component and/or nanoparticle component is a natural fiber.

The present application relates to a fiber reinforced thermoplastic composite sheet and a method for preparing the same. The fiber reinforced thermoplastic composite sheet has on its surface a marble texture effect obtained by laminating cut pieces of a continuous fiber reinforced thermoplastic composite unidirectional tape, wherein the fibers and the resin used in the continuous fiber reinforced thermoplastic composite unidirectional tape have different colors. The thermoplastic composite sheet may be prepared using a simple and quick method, and meet individual requirements of surface appearance of the final product.

Provided is a resin molded body capable of increasing a flexural modulus. A resin molded body according to the present invention includes a urethane resin, long reinforcing fibers, an inorganic filler having an average particle diameter of 1 μm or more, and fine inorganic particles having an average particle diameter of 200 nm or less, a content of the fine inorganic particles being 0.06 parts by weight or more and 3.00 parts by weight or less with respect to 100 parts by weight of the urethane resin.

A composition for fiber-reinforced resin that provides a fiber-reinforced resin with sufficient mechanical strength. The composition for fiber-reinforced resin contains at least one resin (A) selected from the group consisting of rosin resins, petroleum resins, terpene resins, and hydrides of cyclic ketone-aldehyde resins, and the resin (A) has a softening point of 80° C. to 180° C.

A composition for fiber-reinforced resin that provides a fiber-reinforced resin with sufficient mechanical strength. The composition for fiber-reinforced resin contains at least one resin (A) selected from the group consisting of rosin resins, petroleum resins, terpene resins, and hydrides of cyclic ketone-aldehyde resins, and the resin (A) has a softening point of 80° C. to 180° C.

Provided are a curable composition which is rapidly curable and which gives cured products with good heat resistance, a cured product thereof, a fiber-reinforced composite material, a fiber-reinforced resin-molded article, and a method for manufacturing the fiber-reinforced resin-molded article. Provided are a curable composition containing an epoxy resin (A), an aliphatic and/or alicyclic amine compound (B), and an imidazole compound (C), wherein the ratio H/E of the number of moles H of active hydrogen in the aliphatic and/or alicyclic amine compound (B) to the number of moles E of an epoxy group in the epoxy resin (A) is in the range of 0.2 to 0.9; a cured product thereof; a fiber-reinforced composite material; a fiber-reinforced resin-molded article; and a method for manufacturing the fiber-reinforced resin-molded article.

Provided are a curable composition which is rapidly curable and which gives cured products with good heat resistance, a cured product thereof, a fiber-reinforced composite material, a fiber-reinforced resin-molded article, and a method for manufacturing the fiber-reinforced resin-molded article. Provided are a curable composition containing an epoxy resin (A), an aliphatic and/or alicyclic amine compound (B), and an imidazole compound (C), wherein the ratio H/E of the number of moles H of active hydrogen in the aliphatic and/or alicyclic amine compound (B) to the number of moles E of an epoxy group in the epoxy resin (A) is in the range of 0.2 to 0.9; a cured product thereof; a fiber-reinforced composite material; a fiber-reinforced resin-molded article; and a method for manufacturing the fiber-reinforced resin-molded article.

Composite materials are described herein. The composite materials include a polymer matrix comprising at least one fluorinated homo- or copolymer and continuous fibers dispersed within the polymer matrix. The continuous fibers are present within the composite material in an amount between about 10 wt % and about 90 wt % of a weight of the composite material. The composite materials also include a filler dispersed within the polymer matrix. The filler is present within the composite material in an amount between about 5 wt % and about 25 wt % of an amount of the polymer matrix.