Abstract:
A brush head (32) including: a supporting portion (42) of a brush neck (40); a plurality of bristle tufts (21), each of which comprises a plurality of bristle strands having a proximal end (23) and a free end (25), wherein each of the plurality of bristle tufts comprises a proximal end head portion (26) melted into a first shape within a mold; and an elastomeric matrix (30) comprising at least a portion of the hard brush neck and the proximal end head portions, wherein the first shape of the proximal end head portion is configured to engage the elastomeric matrix such that the bristle tufts are retained within the elastomeric matrix.
Abstract:
Es wird ein Verfahren zum Herstellen eines Elektronikmoduls beschrieben, bei dem ein Leiterplattenelement (1) bereitgestellt wird und an dem Leiterplattenelement (1) ein Gehäuseteilelement (15) angebracht wird. Das Gehäuseteilelement (15) wird dabei zunächst separat hergestellt und bereitgestellt. Das Gehäuseteilelement (15) ist mit einem reversibel plastifizierbaren Material wie zum Beispiel einem Thermoplast, beispielsweise Polyamid, ausgebildet. Zumindest ein Teilbereich (18) einer Oberfläche des Gehäuseteilelements (15) wird dann reversibel plastifiziert, beispielsweise durch lokales Erhitzen, insbesondere durch Bestrahlen mit Licht. Das Gehäuseteilelement (15) wird dann an dem Leiterplattenelement (1) durch Zusammenfügen des plastifizierten Teilbereichs der Oberfläche des Gehäuseteilelements mit einem mikrostrukturierten Teilbereich (7) des Leiterplattenelements und anschließendes Verfestigen des plastifizierten Teilbereichs (18) angebracht. Dabei kommt es zu einer formschlüssigen und hermetisch dichten Verbindung zwischen dem Gehäuseteilelement (15) und dem Leiterplattenelement (1).
Abstract:
The present invention relates to a method for reinforcing a vehicle subframe comprising one or more hollow metal-sheet parts, wherein the method comprises: a step of determining at least one area on the hollow metal-sheet part of the subframe with respect to specified conditions; a step of preparing a reinforcement part which is able to be inserted in the hollow metal-sheet part of the subframe at said area, wherein the reinforcement part comprises a lightweight carrier for supporting the metal-sheet part and a pre-foam of a foam material which is able to expand after being heated, wherein the lightweight comprises at lease one hollow chamber and wherein the pre-foam is isolated from said at least one hollow chambers and is distributed at least partly on the periphery of the carrier; and a step of installing the reinforcement part within the metal-sheet part of the subframe at the determined area and supplying heat to the pre-foam such that it expands. The present invention also relates to a vehicle subframe reinforced by said method.
Abstract:
The present invention relates to the field of composite structures having improved heat aging and interlayer adhesion properties, processes for making them, and end use articles. Composite structures comprising a first component and a second component which is overmolded onto the first component and wherein the surface of the first and optionally of second component comprise a copper based heat stabilizer have excellent inter component bond strength and heat stability. The copper based heat stabilizers provide superior bond strength between components compared to polyhydric alcohol based heat stabilizers.
Abstract:
The present invention relates to the field of overmolded composites structures and processes for their preparation, particularly it relates to the field of overmolded polyamide composite structures. 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 selected from non-woven structures, textiles, fibrous battings and combinations thereof, said 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 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 independently selected from (B) or independently selected from blends of (A) and (B).
Abstract:
The present invention relates to the field of overmolded composites structures and processes for their preparation, particularly it relates to the field of overmolded polyamide composite structures. 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 selected from non-woven structures, textiles, fibrous battings and combinations thereof, said 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 and are selected from polyamide compositions comprising a blend of semi-aromatic polyamides
Abstract:
The present invention relates to the field of composite structures and processes for their preparation, particularly it relates to the field of polyamide composite structures. The disclosed composite structures comprise a surface, which surface has at least a portion made of a surface resin composition, and comprise a fibrous material selected from non-woven structures, textiles, fibrous battings and combinations thereof, said fibrous material being impregnated with a matrix resin composition, wherein the surface resin composition is selected from polyamide compositions comprising a blend of two or more fully aliphatic polyamides having a melting point of at least 250°C 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:
The multilayered preform (1) or multilayered container obtained by biaxially stretching a preform comprises at least one gas-barrier layer (L B ), said gas-barrier layer (L B ) comprising a polyamide and a polyester, wherein the polyester comprises a x%PETI copolymer and/or a y%PETG copolymer, with x and y being at least equal to 5. The multilayered container exhibits high gas barrier performances, in particular oxygen-scavenging properties, and low haze.
Abstract:
Procédé de fabrication d'une pièce automobile composite par surmoulage, sur au moins une surface d'un insert (1) comprenant un premier matériau plastique, d'une couche d'un second matériau thermoplastique, ledit procédé comprenant les étapes successives suivantes : • a) une étape de positionnement dudit insert (1) dans un moule, et • b) une étape de moulage dudit second matériau thermoplastique sur ledit insert; au moins un desdits premier et second matériaux comprenant un additif, ledit additif comprenant un polymère sur lequel sont greffés des monomères d'anhydrides carboxyliques. Lesdits premier et second matériaux étant respectivement à base de polyamide et à base de polypropylène, ou inversement et ledit second matériau comprenant du talc comme charge minérale.
Abstract:
Method and machine for joining two objects (1, 5) by anchoring an insert portion (6) provided on a first object (6) in an opening (2) provided on a second object (1). The anchorage is achieved by liquefaction of a thermoplastic material and interpenetration of the liquefied material and a penetrable material, the two materials being arranged on opposite surfaces (18, 19) of the insert portion (6) and the wall of the opening (2). During the step of inserting the insert portion (6) in the opening and/or during anchorage a clamping force is applied to opposing surfaces (3) of the second object to prevent the second object from cracking or bulging.