-
21.
公开(公告)号:US20250066627A1
公开(公告)日:2025-02-27
申请号:US18719293
申请日:2023-05-02
Applicant: DIRECTA PLUS S.P.A.
Inventor: Giovanni Broggi
Abstract: Granular composition comprising a particulate material selected from pigments and fillers, graphene nano-platelets and a binder, and use of this composition to prepare paints, varnishes and inks.
-
22.
公开(公告)号:US20240237641A1
公开(公告)日:2024-07-18
申请号:US18289378
申请日:2022-05-03
Applicant: DIRECTA PLUS S.P.A.
Inventor: Laura Giorgia Rizzi , Giulio Cesareo
IPC: A01N25/34 , A01N25/24 , A01N35/02 , A01N35/06 , A01N43/16 , A01P1/00 , D06M11/74 , D06M13/175 , D06M15/03 , D06M15/11 , D06M15/13 , D06M16/00 , D06M101/30
CPC classification number: A01N25/34 , A01N25/24 , A01N35/02 , A01N35/06 , A01N43/16 , A01P1/00 , D06M11/74 , D06M13/175 , D06M15/03 , D06M15/11 , D06M15/13 , D06M16/00 , D06M2101/30
Abstract: Composition for the treatment of textile articles comprising graphene and a binder agent dispersed in an aqueous medium, in which the binder agent is a polysaccharide selected from the group consisting of starch, glycogen, chitosan, pectin, salts of alginic acid or alginates, dextran, chitin, and glycans, and textile article treated with said composition.
-
公开(公告)号:US12037741B2
公开(公告)日:2024-07-16
申请号:US16977173
申请日:2019-04-17
Applicant: DIRECTA PLUS S.P.A.
Inventor: Laura Giorgia Rizzi , Giulio Cesareo , Razvan Popescu
IPC: D06M11/74 , B82Y30/00 , B82Y40/00 , C01B32/182 , D06M23/16
CPC classification number: D06M11/74 , C01B32/182 , D06M23/16 , B82Y30/00 , B82Y40/00 , C01B2204/22 , C01B2204/32
Abstract: Textile article with a pattern comprising graphene, defining a surface with empty portions and full portions, with a percentage of coverage from 10 to 70% of the surface defined by the pattern, so as to form a thermal circuit for optimal management of the heat absorbed and of the breathability of the article, and the process for its preparation.
-
公开(公告)号:US12029273B2
公开(公告)日:2024-07-09
申请号:US17258502
申请日:2019-06-20
Applicant: DIRECTA PLUS S.P.A.
Inventor: Giulio Giuseppe Cesareo , Massimiliano Bianchi , Antonino Di Pasquale
IPC: A43B13/04 , A43B13/02 , B29C35/02 , C08K3/04 , C08L9/00 , B29K19/00 , B29K105/00 , B29K105/16 , B29K507/04 , B29L31/50 , B82Y40/00
CPC classification number: A43B13/04 , A43B13/026 , B29C35/02 , C08K3/04 , C08K3/042 , C08L9/00 , B29K2019/00 , B29K2105/0005 , B29K2105/162 , B29K2507/04 , B29L2031/504 , B82Y40/00 , C08K2201/006 , C08K2201/011
Abstract: A shoe sole comprising an elastomeric composition comprising: (D) 100 phr of a mixture of rubbers comprising: i. from 40 to 70% by weight of an isoprene polymer; ii. from 20 to 50% by weight of polybutadiene; iii. from 10 to 40% by weight of an SBR having a glass transition temperature (Tg) from −60 to −40° C.; (E) from 50 to 100 phr of amorphous carbon black having a surface area greater than 85 m2/g measured with the ASTM D6556 method, and a dibutyl phthalate absorption index (DBPA) greater than 90 measured with the ASTM D2414 method; (F) from 1 to 30 phr of graphene nano-platelets, wherein at least 90% of said graphene nano-platelets has a side dimension (x, y) from 50 to 50000 nm and a thickness (z) of 0.34 to 50 nm, and wherein said graphene nano-platelets have a C/O ratio ≥100:1.
-
25.
公开(公告)号:US10920045B2
公开(公告)日:2021-02-16
申请号:US15747146
申请日:2016-07-25
Applicant: DIRECTA PLUS S.P.A.
Inventor: Giulio Cesareo , Massimiliano Bianchi , Antonino Di Pasquale
Abstract: Elastomeric composition for producing tire components comprising, based upon parts by weight per 100 parts by weight of rubber (phr): (A) 100 phr of a blend of rubber comprising at least 20% by weight of an isoprene polymer; (B) from 0 to 30 phr of silica; (C) from 0 to 50 phr of amorphous carbon black; (D) from 1 to 40 phr of graphene, wherein the graphene consists of graphene nanoplatelets, wherein at least 90% have a lateral size (x, y) from 50 to 50000 nm and a thickness (z) from 0.34 to 50 nm, wherein the lateral size is always greater than the thickness (x, y>z), and wherein the C/O ratio is ≥100:1.
-
公开(公告)号:US20190329100A1
公开(公告)日:2019-10-31
申请号:US16468358
申请日:2017-12-12
Applicant: DIRECTA PLUS S.P.A.
Inventor: Giulio Giuseppe Cesareo , Massimiliano Bianchi , Antonino Di Pasquale
Abstract: Golf ball consisting of an inner part comprising at least an elastomeric polymer and a reinforcing agent comprising graphene nano-platelets in which at least 90% of the nano-platelets has a lateral size (x, y) from 50 to 50,000 nm and a thickness (z) from 0.34 to 45 nm, and a C/O ratio ≥100:1.
-
公开(公告)号:US20190185348A1
公开(公告)日:2019-06-20
申请号:US16324831
申请日:2017-08-09
Applicant: Directa Plus S.p.A.
Inventor: Giulio Cesareo , Annalisa Pola , Laura Giorgia Rizzi
CPC classification number: C02F1/283 , B01J20/20 , B01J20/28011 , B01J20/28059 , C02F1/001 , C02F2101/32 , C02F2103/10 , C02F2303/18
Abstract: Process for the treatment of water containing low quantities of hydrocarbons (as dispersed or dissolved or emulsified) by means of expanded graphite having an apparent density from 2 to less than 5 g/l, wherein said hydrocarbons are present in a quantity less than or equal to 1 g/l, a specific surface area from 50 to 100 m2/g and a carbon/oxygen ratio (C:O)≥100. The expanded graphite is mixed vigorously for a short time with the water contaminated by hydrocarbons and easily separated at the end of the treatment.
-
28.
公开(公告)号:US20180215904A1
公开(公告)日:2018-08-02
申请号:US15747146
申请日:2016-07-25
Applicant: DIRECTA PLUS S.P.A.
Inventor: Giulio CESAREO , Massimiliano BIANCHI , Antonino DI PASQUALE
CPC classification number: C08L9/06 , B60C1/00 , B60C1/0008 , B60C1/0016 , B60C1/0041 , B60C5/00 , B60C2200/12 , C08K3/04 , C08K3/042 , C08K3/36 , C08L7/00 , C08L9/00 , C08L23/16 , C08L2205/02 , C08L2205/03 , C08L2205/035
Abstract: Elastomeric composition for producing tire components comprising, based upon parts by weight per 100 parts by weight of rubber (phr): (A) 100 phr of a blend of rubber comprising at least 20% by weight of an isoprene polymer; (B) from 0 to 30 phr of silica; (C) from 0 to 50 phr of amorphous carbon black; (D) from 1 to 40 phr of graphene, wherein the graphene consists of graphene nanoplatelets, wherein at least 90% have a lateral size (x, y) from 50 to 50000 nm and a thickness (z) from 0.34 to 50 nm, wherein the lateral size is always greater than the thickness (x, y>z), and wherein the C/O ratio is ≥100:1.
-
公开(公告)号:US09909015B2
公开(公告)日:2018-03-06
申请号:US14910488
申请日:2014-08-07
Applicant: DIRECTA PLUS S.p.A.
Inventor: Giulio Cesareo , Maria Riccardo Parrini , Laura Giorgia Rizzi
CPC classification number: C09D5/18 , C08G16/0237 , C08K3/04 , C08K3/042 , C09D161/00 , C09K21/06
Abstract: A flame retardant composition comprising graphene nanoplatelets and a condensation product of a sulfonated aromatic compound with formaldehyde, wherein the w/w ratio between the graphene and the condensation product is in the range of 1:15 to 4:1. The composition may be in the form of a water dispersion applied to the surface of the article to be treated.The composition has optimal flame retardant properties even when applied in relatively modest quantities.
-
公开(公告)号:US20170190581A1
公开(公告)日:2017-07-06
申请号:US15313183
申请日:2015-06-16
Applicant: Directa Plus S.P.A.
Inventor: Giulio Cesareo , Maria Riccardo Parrini , Laura Giorgia Rizzi
Abstract: Process for producing pristine graphene nanoplatelets, comprising the expansion of flakes of intercalated graphite and the collection thereof in water with formation of a dispersion in the substantial absence of surfactants, followed by an exfoliation and size reduction treatment carried out using ultrasonication of the aqueous dispersion or using high pressure homogenization thereof in a high shear homogenizer. A dispersion of pristine graphene is obtained in the form of nanoplatelets, at least 90% of which have a lateral size (x, y) from 50 to 50,000 nm and a thickness (z) from 0.34 to 50 nm, having a C/O ratio ≧100:1 and a high electrical conductivity.
-
-
-
-
-
-
-
-
-