C08J5/08

Liquid crystal polyester resin composition and molded body
11485851 · 2022-11-01 · ·

A liquid crystal polyester resin composition containing 100 parts by mass of a liquid crystal polyester resin; and at least 5 parts by mass and at most 100 parts by mass of glass components; wherein the glass components contain glass fibers having a length of more than 50 μm and glass fine powders having a length of at least 4 μm and at most 50 μm; the number-average fiber length of the glass fibers is at least 200 μm and at most 400 μm; and the content of the fine powders is at least 20% and at most 95% relative to a total number of the glass components.

Pellet comprising thermoplastic polymer sheath surrounding glass filaments having reduced emissions

The invention relates to a pellet comprising a thermoplastic polymer sheath intimately surrounding glass filaments, which glass filaments are covered at least in part with an impregnating agent and extend in a longitudinal direction of said pellets, wherein the thermoplastic polymer sheath is prepared from a thermoplastic polymer composition comprising A) a heterophasic propylene copolymer consisting of a propylene-based matrix and a dispersed ethylene-α-olefin copolymer, wherein the heterophasic propylene copolymer has a melt flow rate of at least 40 g/10 min as determined in accordance with ISO 1133 (230° C., 2.16 kg) and a FOG value of at most 350 μg/g as determined by VDA 278, wherein the glass filaments are present in an amount of 10-70 wt % based on the pellet.

Pellet comprising thermoplastic polymer sheath surrounding glass filaments having reduced emissions

The invention relates to a pellet comprising a thermoplastic polymer sheath intimately surrounding glass filaments, which glass filaments are covered at least in part with an impregnating agent and extend in a longitudinal direction of said pellets, wherein the thermoplastic polymer sheath is prepared from a thermoplastic polymer composition comprising A) a heterophasic propylene copolymer consisting of a propylene-based matrix and a dispersed ethylene-α-olefin copolymer, wherein the heterophasic propylene copolymer has a melt flow rate of at least 40 g/10 min as determined in accordance with ISO 1133 (230° C., 2.16 kg) and a FOG value of at most 350 μg/g as determined by VDA 278, wherein the glass filaments are present in an amount of 10-70 wt % based on the pellet.

Multilayer radar-absorbing laminate for aircraft made of polymer matrix composite material with graphene nanoplatelets, and method of manufacturing same

A multilayer radar-absorbing laminate includes three juxtaposed blocks. A first electrically conductive block is arranged toward the inside of the aircraft in use. A second electromagnetic intermediate absorber block has a layer of electrically non-conductive fiber sheets is permeated by graphene-based nanoplatelets to achieve a periodic and electromagnetically subresonant layer, the conductive layers containing graphene nanoplatelets alternating with non-conductive layers. A third block of electrically non-conductive material is arranged towards the outside and forms part of the outer surface of the aircraft. The second block is produced by depositing on the fiber sheets a suspension of graphene nanoplatelets in a polymeric mixture, with controlled penetration of the graphene nanoplatelets into the fiber sheets. A plurality of dry fiber sheets sprayed with the suspension of graphene nanoplatelets is superimposed. An unpolymerized thermosetting synthetic resin is infused into a lay-up made of the first, second and third blocks. Afterwards, the thermosetting resin is polymerized.

GLASS FIBER-REINFORCED THERMOPLASTIC POLYMER COMPOSITION

The invention relates to a glass fiber-reinforced thermoplastic polymer composition comprising a sheathed continuous multifilament strand comprising a core that extends in the longitudinal direction and a polymer sheath which intimately surrounds said core, wherein the core comprises an impregnated continuous multifilament strand comprising at least one continuous glass multifilament strand, wherein the at least one continuous glass multifilament strand is impregnated with an impregnating agent, wherein the polymer sheath consists of a thermoplastic polymer composition comprising a thermoplastic polymer, wherein the glass fiber-reinforced thermoplastic polymer composition comprises a liquid color composition comprising a pigment and a liquid carrier comprising a dicarboxylic acid ester and/or an unsaturated long-chain aliphatic fatty acid having 13 to 21 carbon atoms.

GLASS FIBER-REINFORCED THERMOPLASTIC POLYMER COMPOSITION

The invention relates to a glass fiber-reinforced thermoplastic polymer composition comprising a sheathed continuous multifilament strand comprising a core that extends in the longitudinal direction and a polymer sheath which intimately surrounds said core, wherein the core comprises an impregnated continuous multifilament strand comprising at least one continuous glass multifilament strand, wherein the at least one continuous glass multifilament strand is impregnated with an impregnating agent, wherein the polymer sheath consists of a thermoplastic polymer composition comprising a thermoplastic polymer, wherein the glass fiber-reinforced thermoplastic polymer composition comprises a liquid color composition comprising a pigment and a liquid carrier comprising a dicarboxylic acid ester and/or an unsaturated long-chain aliphatic fatty acid having 13 to 21 carbon atoms.

GLASS-FIBER-REINFORCED RESIN PLATE
20230118488 · 2023-04-20 ·

Provided is a glass-fiber-reinforced resin plate excellent in dimensional stability, strength, surface smoothness, and productivity even if having a thickness of 0.5 mm or less. The present invention is a glass-fiber-reinforced resin plate having a thickness of 0.5 mm or less, comprising glass fiber that has a flat cross-sectional shape with a minor axis D.sub.s in the range of 4.5 to 12.0 .Math.m and a major axis D.sub.L in the range of 20.0 to 50.0 .Math.m, and an amorphous thermoplastic resin, wherein the number average fiber length L of the glass fiber is in the range of 50 to 400 .Math.m, the glass fiber content C is in the range of 25.0 to 55.0% by mass, and the D.sub.s, D.sub.L, L, and C satisfy the following formula (1): 0.32 ≤ 1000 × D.sub.s × D.sub.L.sup.3 × (C/100).sup.4/L.sup.3 ≤ 1.22 ...(1).

REINFORCING MATERIAL AND RESIN MOLDED ARTICLE
20230159715 · 2023-05-25 ·

A reinforcing material is disclosed that includes coated glass flakes and coated glass strands. When the total amount of a glycidyl group-including resin and aminosilane contained in the coatings of the coated glass flakes corresponds to 100% by mass, the amount of the resin is 30% to 95% by mass. When the total amount of a glycidyl group-including resin, aminosilane, and a urethane resin contained in the coatings of the coated glass strands corresponds to 100% by mass, the amount of the glycidyl group-including resin is 10% to 90% by mass, the amount of the aminosilane is 0.1% to 40% by mass, and the amount of the urethane resin is 1% to 50% by mass. Both the coated glass flakes and the coated glass strands have an ignition loss of 0.1% to 2.0% by mass measured pursuant to JIS R3420 (2013).

REINFORCING MATERIAL AND RESIN MOLDED ARTICLE
20230159715 · 2023-05-25 ·

A reinforcing material is disclosed that includes coated glass flakes and coated glass strands. When the total amount of a glycidyl group-including resin and aminosilane contained in the coatings of the coated glass flakes corresponds to 100% by mass, the amount of the resin is 30% to 95% by mass. When the total amount of a glycidyl group-including resin, aminosilane, and a urethane resin contained in the coatings of the coated glass strands corresponds to 100% by mass, the amount of the glycidyl group-including resin is 10% to 90% by mass, the amount of the aminosilane is 0.1% to 40% by mass, and the amount of the urethane resin is 1% to 50% by mass. Both the coated glass flakes and the coated glass strands have an ignition loss of 0.1% to 2.0% by mass measured pursuant to JIS R3420 (2013).

Lightweight reinforced composite formulation and method of making the same

A composite formulation for use in lightweight molded components includes an untreated low density filler, such as glass bubbles, a solvated polymer mixture, and polymer paste. In one embodiment the solvated polymer mixture is used to treat the low density filler to form a treated low density filler. The solvated polymer mixture many include a thermoplastic resin or a reactive resin and an additive package. The additive package may include a dispersing agent and a silane carrier composition.