US 11,707,102 B2
Body protection devices, particularly protective helmets
Andrea Gamucci, San Miniato (IT); Vittorio Pellegrini, Gragnano (IT); and Francesco Bonaccorso, Genoa (IT)
Assigned to FONDAZIONE ISTITUTO ITALIANO DI TECNOLOGIA, Genoa (IT)
Appl. No. 16/340,858
Filed by FONDAZIONE ISTITUTO ITALIANO DI TECNOLOGIA, Genoa (IT)
PCT Filed Oct. 10, 2017, PCT No. PCT/IB2017/056241
§ 371(c)(1), (2) Date Apr. 10, 2019,
PCT Pub. No. WO2018/069824, PCT Pub. Date Apr. 19, 2018.
Claims priority of application No. 102016000101327 (IT), filed on Oct. 10, 2016.
Prior Publication US 2019/0239589 A1, Aug. 8, 2019
Int. Cl. C09D 133/12 (2006.01); A42B 3/06 (2006.01); C09D 163/00 (2006.01); C08K 3/04 (2006.01); C09D 7/61 (2018.01); C08K 3/22 (2006.01); C08J 7/04 (2020.01); C08K 7/02 (2006.01); A42C 2/00 (2006.01)
CPC A42B 3/061 (2013.01) [A42B 3/063 (2013.01); A42C 2/00 (2013.01); C08J 7/0427 (2020.01); C08K 3/042 (2017.05); C08K 3/22 (2013.01); C08K 7/02 (2013.01); C09D 7/61 (2018.01); C09D 133/12 (2013.01); C09D 163/00 (2013.01); C08J 2433/12 (2013.01); C08K 2003/2241 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A body protection device comprising a shell of a plastic material or of a fiber-reinforced plastic material, wherein said shell comprises an outer coating layer formed by a polyacrylic polymeric matrix including graphene fillers;
wherein said outer coating layer is obtained by applying to an outer surface of the shell a liquid coating composition comprising a polymeric paint comprising: a polyacrylic paint, a hardening agent for said polymeric paint, graphene fillers and optionally a diluent;
wherein said polyacrylic paint comprises in percentages by weight:
20-30% Polymethylmethacrylate;
0.1-1% Methyl methacrylate;
5-10% Xylene;
1-3% Low boiling naphtha;
0.1-1% Trimethoxysilyl propanetriol;
12-15% Titanium dioxide;
5-10% 2-methoxy-1-methylethylacetate;
10-12% N-butyl acetate; and
q.s. to 100% Inert fillers.