# US 12,006,432 B2 · Impact compositions > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,006,432 B2 - Document ID: US12006432B2 - Status: Granted - Kind: B2 - Application number: 16/980,581 - Filed: 2019-03-11 - Published: 2021-01-07 - Granted: 2024-06-11 - Earliest claimed: 2018-03-15 - Assignees: Shpp Global Technologies B.V. - Applicants: SHPP Global Technologies B.V. - Inventors: Vaidyanath Ramakrishnan; Sepehr Harsiny; Johannes Gerardus Petrus Goossens; Johannes Martinus Dina Goossens; Theodorus Lambertus Hoeks; Devendra Bajaj; Pooja Bajaj - Web page: https://patentgrep.com/patent/US12006432B2 ## CPC - C08L 69/00: Compositions of polycarbonates; Compositions of derivatives of polycarbonates - C08L 83/10: Block- or graft-copolymers containing polysiloxane sequences (obtained by polymerising a compound having a carbon-to-carbon double bond on to a polysiloxane C08L51/08, C08L53/00) - C08G 77/448: containing polycarbonate sequences - C08K 9/06: with silicon-containing compounds - C08K 2201/005: Additives being defined by their particle size in general - C08K 2201/011: Nanostructured additives - C08L 2205/03: containing three or more polymers in a blend - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) - C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS - C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09) ## Abstract In an embodiment, a composition comprises a polycarbonate; 1 to 5 wt % based on a total weight of the composition of a nanosilica having a D50 particle size by volume of 5 to 50 nanometers; wherein the nanosilica has a hydrophobic coating; and a siloxane domain having repeat units of the formula 10; wherein each R is independently a C1-13 monovalent organic group and the value of E is 2 to 1,000; wherein the composition comprises at least one of a polycarbonate-polysiloxane copolymer, 0.1 to 5 wt % of a polysiloxane homopolymer based on the total weight of the composition, or a plurality of polysiloxane particles having a D50 particle size by volume of 0.1 to 10 micrometers. ## Claims ### Claim 1 A composition comprising: a polycarbonate; 1 to 5 wt % based on a total weight of the composition of a nanosilica having a D50 particle size by volume of 5 to 50 nanometers determined in accordance with ISO-22412-17; wherein the nanosilica has a hydrophobic coating; and a siloxane domain having repeat units of the formula 10; wherein each R is independently a C1-13 monovalent organic group and the value of E is 2 to 1,000; wherein the composition comprises at least one of a polycarbonate-polysiloxane copolymer, wherein, if present, the polysiloxane portion of the polycarbonate-polysiloxane copolymer constitutes at least a portion of the siloxane domain, and the value of E of formula (10) is 40 to 80, wherein the polycarbonate-polysiloxane copolymer can be the same or different as the polycarbonate; or a plurality of polysiloxane particles having a D50 particle size by volume of 0.1 to 10 micrometers determined in accordance with ISO-22412-17, wherein, if present, the plurality of polysiloxane particles constitutes at least a portion of the siloxane domain. ### Claim 2 (depends on 1) The composition of claim 1, wherein the composition comprises 10 to 40 wt % of the polycarbonate-polysiloxane copolymer based on the total weight of the composition. ### Claim 3 (depends on 1) The composition of claim 1, wherein the composition comprises 1 to 10 wt % of the plurality of polysiloxane particles. ### Claim 4 (depends on 1) The composition of claim 1, wherein the composition comprises the plurality of polysiloxane particles and the plurality of polysiloxane particles has a D50 particle size of 1 to 5 micrometers. ### Claim 5 A composition comprising: a polycarbonate; 1 to 5 wt % based on a total weight of the composition of a nanosilica having a D50 particle size by volume of 5 to 50 nanometers; wherein the nanosilica has a hydrophobic coating; a plurality of carbon nanotubes; and 0.1 to 5 wt % of a polysiloxane homopolymer having a siloxane domain having repeat units of the formula 10 based on the total weight of the composition; wherein each R is independently a C1-13 monovalent organic group and the value of E is 2 to 1,000. ### Claim 6 (depends on 5) The composition of claim 5, wherein the polysiloxane homopolymer comprises a polydimethylsiloxane. ### Claim 7 (depends on 5) The composition of claim 5, wherein the composition comprises 0.1 to 3 wt % of the polysiloxane homopolymer based on the total weight of the composition. ### Claim 8 (depends on 5) The composition of claim 5, wherein the composition comprises 2 to 10 wt % of the plurality of carbon nanotubes based on the total weight of the composition. ### Claim 9 (depends on 1) The composition of claim 1, wherein the composition has an increased notched Izod impact energy at 23° C. as compared to the same composition but that is free of one of the nanosilica or the siloxane domain. ### Claim 10 (depends on 1) The composition of claim 1, wherein the composition comprises 60 to 90 wt % of the polycarbonate based on the total weight of the composition. ### Claim 11 (depends on 1) The composition of claim 1, wherein the polycarbonate comprises a bisphenol A homopolycarbonate. ### Claim 12 (depends on 1) The composition of claim 1, wherein the composition comprises 2.5 to 4.5 wt % of the nanosilica based on the total weight of the composition. ### Claim 13 (depends on 1) The composition of claim 1, wherein the nanosilica has a D50 particle size by volume of 5 to 40 nm. ### Claim 14 (depends on 1) The composition of claim 1, wherein the composition comprises 3 to 15 wt % of the siloxane domain based on the total weight of the composition. ### Claim 15 (depends on 1) The composition of claim 1, further comprising an encapsulated fluoropolymer, wherein the encapsulated fluoropolymer optionally comprises a styrene acrylonitrile encapsulated polytetrafluoroethylene.