Abstract: Described herein are polyamide compositions comprising poly alpha-1,3-glucan in combination with a compatibilizer and processes for preparing such compositions. Such polyamide compositions exhibit improved elongation at break compared to polyamide compositions which lack a compatibilizer. These polyamide compositions exhibit an elongation at break of at least 9 percent when measured according to ASTM D638 after exposure to water at 120° C. at 2 atm pressure for 192 hours.

Abstract: Described herein are polyamide compositions comprising poly alpha-1,3-glucan in combination with a compatibilizer and processes for preparing such compositions. Such polyamide compositions exhibit improved elongation at break compared to polyamide compositions which lack a compatibilizer. These polyamide compositions exhibit an elongation at break of at least 9 percent when measured according to ASTM D638 after exposure to water at 120° C. at 2 atm pressure for 192 hours.

Abstract: Disclosed is a injection molded composite wheel, including a thermoplastic polyamide composition consisting essentially of (A) 20 to 70 weight percent of at least one polyamide resin including at least one repeat unit selected from the group consisting of the formulas —C(O)(CH2)10C(O)NH(CH2)nNH—??(I), —C(O)(CH2)12C(O)NH(CH2)nNH—??(II), —C(O)(CH2)14C(O)NH(CH2)nNH—??(III), and —C(O)(CH2)16C(O)NH(CH2)nNH—??(IV); wherein n is an integer selected from 4, 6, and 10, and with the proviso that when the polyamide resin has repeat units of formula (I), at least one other repeat unit of formula (II)-(IV) is also present in at least 30 mol % content; (B) 20 to 65 weight percent of one or more fiber reinforcing agents, and (C) 0 to 20 weight percent of one or more polymer impact modifiers.

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: 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 thermoplastic composition including (A) a polyamide resin independently selected from the group consisting of Group (I) Polyamides having a melting point of at least 260° C., and comprising (a) greater than 95 mole percent semiaromatic repeat units and (b) less than 5 mole percent aliphatic repeat units; (B) 0 to 60 weight percent of one or more reinforcement agents; and (C) 0 to 50 weight percent of one or more a polymeric tougheners; wherein the weight percentages are based on the total weight of said thermoplastic composition; and wherein said polyamide resin has at least 50 meq/Kg of acid ends.

Abstract: Disclosed is a injection molded composite wheel, including a thermoplastic polyamide composition consisting essentially of (A) 20 to 70 weight percent of at least one polyamide resin including at least one repeat unit selected from the group consisting of the formulas —C(O)(CH2)10C(O)NH(CH2)nNH—??(I), —C(O)(CH2)12C(O)NH(CH2)nNH—??(II), —C(O)(CH2)14C(O)NH(CH2)nNH—??(III), and —C(O)(CH2)16C(O)NH(CH2)nNH—??(IV); wherein n is an integer selected from 4, 6, and 10, and with the proviso that when the polyamide resin has repeat units of formula (I), at least one other repeat unit of formula (II)-(IV) is also present in at least 30 mol % content; (B) 20 to 65 weight percent of one or more fiber reinforcing agents, and (C) 0 to 20 weight percent of one or more polymer impact modifiers.

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 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 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, 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 herein are polyamide 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, and comprise a fibrous material being impregnated with a matrix resin composition. The surface resin composition is selected from polyamide compositions comprising a blend of (A) fully aliphatic polyamides having a melting point of less than 230° C., and (B) fully aliphatic polyamides having a melting point of at least 250° C., and wherein the matrix resin composition is independently selected from (B) or blends of (A) and (B).

Abstract: Disclosed herein are overmolded polyamide composites structures and processes for their preparation. The disclosed overmolded composite structures comprise i) a first component having a surface, at least a portion of which is 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 comprising a fibrous material being impregnated with a matrix resin composition, 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, 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.

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.

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 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 overmolded composite structures and processes for their preparation. The disclosed overmolded composite structures comprise i) a first component having a surface, of which at least a portion made of a surface resin composition, and comprising a fibrous material being impregnated with a matrix resin composition, ii) a second component comprising an overmolding resin composition, wherein said second component is adhered to said first component over at least a portion of the surface of said first component, and wherein the matrix resin composition and the surface resin composition are identical or different polyamide compositions.

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).