公开(公告)号：US20230151186A1

公开(公告)日：2023-05-18

申请号：US18058684

申请日：2022-11-23

Applicant: First Graphene Ltd

Inventor： Paul LADISLAUS ,  Neil ARMSTRONG

IPC: C08K7/00 ,  C08K9/04 ,  C08J5/04 ,  C08J7/04 ,  B32B1/08 ,  B32B27/20 ,  B32B27/08 ,  B32B27/36 ,  B32B5/02 ,  B32B13/12

CPC classification number: C08K7/00 ,  C08K9/04 ,  C08J5/043 ,  C08J7/042 ,  B32B1/08 ,  B32B27/20 ,  B32B27/08 ,  B32B27/36 ,  B32B5/028 ,  B32B13/12 ,  C08J2367/00 ,  C08K2201/005 ,  B32B2264/104 ,  B32B2264/107 ,  B32B2307/54 ,  B32B2307/7265 ,  B32B2262/101 ,  B32B2255/28 ,  B32B2255/10 ,  B32B2255/26 ,  B32B2597/00 ,  B32B2264/108 ,  B32B2262/106 ,  B32B2307/302 ,  B32B2307/714 ,  B32B2250/24 ,  B32B2262/0269 ,  B32B2260/021 ,  B32B2260/046 ,  B32B2605/12 ,  B32B2264/302 ,  B32B2264/303 ,  B32B2439/40 ,  B32B2419/06 ,  B32B2264/201

Abstract: A water-resistant composition 20 includes a graphene material 22 forming a matrix with a resin 23. The matrix can include reinforcing fibres such as glass fibres. The composition can include the graphene material 22, a polyester resin 23 and glass fibre reinforcement. Multiple forms of the composite can be provided in layers, such as a barrier layer containing the graphene material 22 in a resin 23 and a second layer containing reinforcing material. A cosmetic coloured gel coat can be applied to the composition and a clear gel coat applied over the cosmetic coating. The graphene material can include graphene platelets 22 dispersed within the resin. The graphene material can provide up to 5% by weight (% wt) of the composite, preferably up to 2% wt of the composite, more preferably between 1% wt and 2.5% wt of the composite and yet more preferably 2% wt of the composite. The composition can be applied to a boat hull, a pipe, a swimming pool, a spa or a tank, or a surface subject to prolonged contact with or submersion in water.