Abstract: The present invention relates to novel glass-carbon composites presenting very high directional properties in the UD carbon layer direction greater with improved failure mode as compared to full carbon fiber and standard composite fibers. The invention further relates to a process of preparation of such glass-carbon composites and to articles made from such glass-carbon composites.

Abstract: Disclosed is a method of forming an article from a unidirectional (UD) tape comprising a continuous unidirectional fiber impregnated with polymer resin. The method includes winding a continuous section of cold UD tape to form a closed loop preform (38) comprising a plurality of stacked layers while discretely welding and consolidating the wound preform by heating and applying pressure.

Abstract: Disclosed herein are composite structures having improved heat aging and interlayer adhesion properties, processes for making them, and end use articles. The composite structures comprise a second component overmolded onto a first component and wherein the surface of the first and optionally of second component comprise a copper based heat stabilizer thereby providing superior bond strength between components compared to polyhydric alcohol based heat stabilizers.

Abstract: Disclosed are composite structures having improved heat aging, processes for making them, and end use articles. The composite structures comprise a polyamide matrix resin composition comprising copper based heat stabilizer; a fibrous material and a polyamide surface resin composition comprising surface heat stabilizer; wherein the surface heat stabilizer is different than the copper based heat stabilizer.

Abstract: Disclosed are overmolded polyamide composites structures and processes for their preparation. The disclosed overmolded composite structures comprise i) a first component having a surface, which surface has at least a portion made of a surface resin composition, and comprising a fibrous material, ii) a second component comprising an overmolding resin composition, adhered to said first component over at least a portion of the surface of said first component. The surface resin composition is selected from polyamide compositions comprising a blend of (A) one or more fully aliphatic polyamides selected from group (I) polyamides having a melting point of less than 230° C., and (B) one or more polyamides selected from group (II) polyamides having a melting point of at least 250° C., and wherein the matrix resin composition is selected from (B) or blends of (A) and (B).

Abstract: Provided are thermoplastic composites having improved flexural properties.

Abstract: Disclosed herein are composite structures having improved high modulus and strenght, processes for making them, and end use articles. The composite structures comprise two or more layers of a fibrous material made of carbon fibers with a basis weight greater than or equal to 150 g/m2, one or more layer of a fibrous material made of glass fibers with a basis weight greater than or equal to 200 g/m2 and a polyamide resin composition. The fibrous materials made of carbon and glass fibers are impregnated into the polyamide resin composition and each of the external layers of the composite structure is a layer of fibrous material made of carbon fibers.

Abstract: The present invention relates to a composite structure having a surface, which surface has at least a portion made of a surface resin composition, and comprising a woven glass fiber fabric, said woven glass fiber fabric being fully impregnated with a matrix resin composition, wherein a. the matrix resin composition comprises a blend of PA6T/DT and PA66/6T, preferably with a weight ratio between from about 30:70 to about 70:30, more preferably with a weight ratio of about 50:50 b. the surface resin composition is independently selected from an amorphous polyamide composition comprising PA6I/6T or a polyamide composition comprising a blend of PA66 and PA6, preferably the weight ratio of PA66 and PA6 in the blend of the surface resin composition is of between 100:0 to 50:50, more preferably 75:25 and wherein c. the woven glass fiber fabric has a basis weight of between 280 to 320 g/m2 d. the coverage of the woven glass fiber fabric is of between 95% to 100%.

Abstract: Disclosed is a method of forming an article from a unidirectional (UD) tape comprising a continuous unidirectional fibre impregnated with polymer resin. The method includes winding a continuous section of cold UD tape to form a closed loop preform (38) comprising a plurality of stacked layers while discretely welding and consolidating the wound preform by heating and applying pressure.

Abstract: A component made of a thermoplastic composite material comprises fibers and thermoplastic polymer wherein the has a hole defined therein for receiving a member to form a connection, and reinforcement provided in the region of the hole and arranged to define a predetermined rip-through path to be followed by the member in the event that a failure load is applied.

Abstract: The present invention relates to the field of overmolded polyamide composites structures and processes for their preparation. The disclosed overmolded composite structures comprise a first component having a surface, which surface has at least a portion made of a surface polyamide resin composition, and having a fibrous material impregnated with a matrix resin composition, and comprise a second component comprising an overmolding resin composition. The second component is adhered to the first component over at least a portion of the surface of said first component. One of the overmolding resin composition and the surface polyamide resin composition is made of a polyamide composition comprising a blend of one or more semi-aromatic polyamides (A) and one or more fully aliphatic polyamides (B) and the other of the overmolding resin composition and the surface polyamide resin composition is made of one or more polyamides.

Abstract: The invention relates to composite structures having surface, which surface has at least a portion made of a composition comprising one or more polyamides having an excess of amine end groups such that the ratio of the amine end groups to the acid end groups is at least 1.5:1.0.

Abstract: Disclosed are composite structures, overmolded composites structures and processes for their preparation. The composite structures have a surface, where at least a portion is made of a surface polyamide resin composition, and comprise a fibrous material impregnated with a matrix resin composition. The matrix polyamide resin composition and the surface resin composition are polyamide compositions comprising a blend of (A) one or more aliphatic polyamides and (B) one or more polyamides.

Abstract: Disclosed herein are composite structures having improved heat aging, processes for making them, and end use articles. The composite structures comprise a polyamide matrix resin composition comprising a matrix heat stabilizer ; a fibrous material and a polyamide surface resin composition comprising copper based heat stabilizer; wherein: the matrix heat stabilizer is different than the copper based heat stabilizer; and wherein the fibrous material is impregnated with the polyamide matrix resin composition.

Abstract: Disclosed herein are composite structures having improved heat aging and interlayer adhesion properties, processes for making them, and end use articles. The composite structures comprise a second component overmolded onto a first component and wherein the surface of the first and optionally of second component comprise a copper based heat stabilizer thereby providing superior bond strength between components compared to polyhydric alcohol based heat stabilizers.

Abstract: Disclosed are overmolded composites structures and processes for their preparation. The overmolded composite structures comprise i) a first component having a surface, having at least a portion made of a surface resin composition, and comprising a fibrous material impregnated with a matrix resin composition, ii) a second component comprising an overmolding resin composition, and adhered to said first component over at least a portion of the surface of said first component. The matrix resin composition and the surface resin composition are identical or different and are selected from polyamide compositions comprising a blend of (A) one or more fully aliphatic polyamides selected, and (B) one or more semiaromatic polyamides having a melting point of at least 280° C.

Abstract: Disclosed herein are composite structures, overmolded composites structures and processes for their preparation. The disclosed composite structures have a surface having at least a portion made of a surface resin composition, and comprise a fibrous material being impregnated with a matrix resin composition, wherein the matrix polyamide resin composition and the surface resin composition are selected from polyamide compositions comprising a blend of semi-aromatic polyamides.

Abstract: Disclosed are overmolded polyamide composites structures and processes for their preparation. The disclosed overmolded composite structures comprise i) a first component having a surface, which surface has at least a portion made of a surface resin composition, and comprising a fibrous material, ii) a second component comprising an overmolding resin composition, adhered to said first component over at least a portion of the surface of said first component. The surface resin composition is selected from polyamide compositions comprising a blend of (A) one or more fully aliphatic polyamides selected from group (I) polyamides having a melting point of less than 230° C., and (B) one or more polyamides selected from group (II) polyamides having a melting point of at least 250° C., and wherein the matrix resin composition is selected from (B) or blends of (A) and (B).

Abstract: Disclosed are composite structures having improved heat aging, processes for making them, and end use articles. The composite structures comprise a polyamide matrix resin composition comprising copper based heat stabilizer; a fibrous material and a polyamide surface resin composition comprising surface heat stabilizer; wherein the surface heat stabilizer is different than the copper based heat stabilizer.

Abstract: Disclosed herein are composite structures and processes for their preparation. The disclosed composite structures comprise a surface, having at least a portion made of a surface resin composition selected from polyamide compositions comprising a blend of two or more fully aliphatic polyamides having a melting point of at least 250° C. and comprise a fibrous material being impregnated with a matrix resin composition, and wherein the matrix resin composition is selected from polyamide compositions comprising a one or more fully aliphatic polyamides having a melting point of at least 250° C.