US 10,369,773 B2Granted

Dry fibrous material for subsequent resin infusion

AssigneeCytec Industries Inc.

InventorsDominique Ponsolle, Carmelo Luca Restuccia, William Jacobs, Robert Blackburn, Carmelo LoFaro, Richard Price, Marc Doyle, Mitchell Smith, Abdel Abusafieh

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Abstract

Disclosed herein is a dry, self-supporting fibrous material, the fibers of which have been treated with a binder composition. The fibrous material can be slit into tapes or tows that are suitable for use in an Automated Tape Laying (ATL) or Automated Fiber Placement (AFP) process. This fibrous material is suitable for forming preforms which are configured to receive a matrix resin by resin infusion in the manufacturing of structural composite parts.

Claims5

Dependent claims

A fibrous tape having a width of 24 inches or less, comprising:

a ply of structural fibers laminated to a nonwoven veil comprising randomly-arranged carbon fibers;
a first binder composition distributed onto the structural fibers and the nonwoven veil, said binder composition comprising (i) one or more polymers selected from polyhydroxyethers, polyurethanes, a mixture thereof, a copolymer or a reaction product of polyhydroxyether and polyurethane, and (ii) a methoxyalkyl melamine aminoplast cross-linker,
wherein the ply of structural fibers comprises unidirectional carbon fibers, and the fibrous tape is permeable to liquid resin.

Dependencies are inferred from the claim text.

Facts

Application: 15/818,259Filed 20 Nov 2017 · continuation
Priority: 20 Dec 2011
Published: US 2018/0072037 A115 Mar 2018
Granted: 6 Aug 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification39 codes

B32B 37/16
Characterised by the properties of the layers: with all layers existing as coherent layers before laminating
B29B 15/12
Coating or impregnating independently of the moulding or shaping step: of reinforcements of indefinite length
B32B 3/266
Characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or…
B32B 5/022
Characterised by structural features of a fibrous or filamentary layer: non-woven fabric

Family

Application61/577,990Us provisional application · filed 20 Dec 2011
PCT/US2012/070480Parent of this division · filed 19 Dec 2012
Application15/186,612Parent of this continuation · filed 20 Jun 2016
US 9,393,758 B2Parent of this division · filed 19 Jul 2016
US 2018/0072037 A1Pre-grant publication · published 15 Mar 2018
US 10,112,375 B2Parent of this continuation
Application14/366,711Parent of this division
Application15/186,612Parent of this division
US 2014/0370237 A1Published application
US 2016/0303842 A1Published application
US 10,369,773 B2This patent

From the US filing history. Foreign family members aren’t listed.

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