# US 10,246,587 B2 · Transparent polyamide-based composition comprising glass as filler > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,246,587 B2 - Document ID: US10246587B2 - Status: Granted - Kind: B2 - Application number: 15/123,420 - Filed: 2015-02-27 - Published: 2016-12-22 - Granted: 2019-04-02 - Earliest claimed: 2014-03-04 - Assignees: Arkema France - Applicants: Arkema France - Inventors: Maho Yasuda; Benjamin Saillard - Web page: https://patentgrep.com/patent/US10246587B2 ## CPC - C08L 77/06: Polyamides derived from polyamines and polycarboxylic acids (C08L77/10 takes precedence) - C08G 69/36: derived from amino acids, polyamines and polycarboxylic acids - C08G 69/40: Polyamides containing oxygen in the form of ether groups (C08G69/12, C08G69/32 take precedence) - C08K 7/14: Glass - C08L 77/02: Polyamides derived from omega-amino carboxylic acids or from lactams thereof (C08L77/10 takes precedence) - C08L 2201/10: Transparent films; Clear coatings; Transparent materials - C08L 2205/02: containing two or more polymers of the same C08L -group - 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 The use of at least one semi-crystalline polyamide in a glass-charged amorphous polyamide resin for producing a composition which is more transparent than the resin. Polyamide-based transparent composition manufactured according to the use of the semi-crystalline polyamide, including: from 5.0 to 40.0% by weight of semicrystalline polyamide, from 20.0 to 80.0% by weight of at least one amorphous, transparent and at least partially cycloaliphatic polyamide, from 5.0 to 40.0%, preferably from 5.0 to 30.0%, by weight of glass filler, and optionally: from 0.0 to 5.0% by weight of PEBA, from 0.0 to 5.0% by weight of additives, with respect to the total weight of the composition. ## Claims ### Claim 1 A polyamide-based transparent composition comprising: from 5.0 to 30.0% by weight of semicrystalline polyamide, wherein the semicrystalline polyamide is chosen from: PA 4.10, PA 6, PA 6.6, PA 4.6, PA 6.10, PA 6.12, PA 11, PA 12, PA 9.10, PA 9.12, PA 9.13, PA 9.14, PA 9.15, PA 9.16, PA 9.18, PA 9.36, PA 10.10, PA 10.12, PA 10.13, PA 10.14, PA 12.10, PA 12.12, PA 12.13, PA 12.14, PA 6.14, PA 6.13, PA 6.15, PA 6.16, PA 6.18, and mixtures thereof; from 20.0 to 80.0% by weight of at least one amorphous, transparent and at least partially cycloaliphatic polyamide; from 5.0 to 40.0% by weight of glass filler; and optionally: from 0.0 to 5.0% by weight of at least one copolymer comprising polyether blocks and polyamide blocks; from 0.0 to 5.0% by weight of additives, with respect to the total weight of the composition, wherein the polyamide composition has a transmittance of 85% or more and a haze of less than 15% when the composition is molded into a sheet having a thickness of 2 mm. ### Claim 2 (depends on 1) The composition according to claim 1, wherein the glass filler comprises, expressed as % by weight, with respect to the total weight of filler, 60.0 to 65.5% of silicon dioxide (SiO2), 23.0 to 25.0% of aluminium oxide (Al2O3), 0.0 to 5.0% of boron oxide (B2O3), 0.0 to 9.0% of calcium oxide (CaO), 0.0 to 5.0% of zinc oxide (ZnO), 0.0 to 1.0% of zirconium oxide (Zr2O3), 0.0 to 5.0% of strontium oxide (SrO), 0.0 to 1.0% of barium oxide (BaO), 6.0 to 11.0 % of magnesium oxide (MgO), 0.0 to 5.0% of lithium oxide (Li2O), 0.0 to 0.1% of sodium oxide (Na2O), 0.0 to 10.0% of potassium oxide (K2O) and 0.0 to 0.1% of iron oxide (Fe2O3). ### Claim 3 (depends on 1) The composition according to claim 1, wherein the glass filler comprises, in % by weight with respect to the total weight of filler, 68.0 to 74.0% of silicon dioxide (SiO2), 2.0 to 5.0% of aluminium oxide (Al2O3), 2.0 to 5.0% of boron oxide (B2O3), 2.0 to 10.0% of calcium oxide (CaO), 0.0 to 5.0% of zinc oxide (ZnO), 0.0 to 5.0% of strontium oxide (SrO), 0.0 to 1.0% of barium oxide (BaO), 1.0 to 5.0% of magnesium oxide (MgO), 0.0 to 5.0% of lithium oxide (Li2O), 5.0 to 12.0% of sodium oxide (Na2O) and 0.0 to 10.0% of potassium oxide (K2O), wherein the total amount of lithium oxide (Li2O), sodium oxide (Na2O) and potassium oxide (K2O) is from 8.0 to 12.0%. ### Claim 4 (depends on 1) The composition according to claim 1, wherein the differences in the refractive indices between the glass filler and the resin component of the composition is 0.006 or less with respect to light having a wavelength of 589 nm; 0.006 or less with respect to light having a wavelength of 486 nm; and 0.006 or less with regard to light having a wavelength of 656 nm. ### Claim 5 (depends on 1) The composition according to claim 1, wherein the glass filler has a total content of silicon dioxide (SiO2) and aluminium oxide (Al2O3) from 83.0 to 90.5% by weight of the glass filler. ### Claim 6 (depends on 1) The composition to claim 1, wherein the glass filler has a total content of silicon dioxide (SiO2) from 60.0 to 65.5% by weight of the glass filler. ### Claim 7 (depends on 1) The composition according to claim 1, wherein the glass filler has a content of Na2O of 0.0 to 0.1% with respect to the total weight of the glass filler. ### Claim 8 (depends on 1) The composition according to claim 1, wherein the glass filler has a content of Al2O3 from 23.0 to 25.0% with respect to the total weight of the glass filler. ### Claim 9 (depends on 1) The composition according to claim 1, wherein the glass filler has a content of CaO from 0.0 to 9.0% with respect to the total weight of the glass filler. ### Claim 10 (depends on 1) The composition according to claim 1, wherein the glass filler has a content of MgO from 6.0 to 11.0% with respect to the total weight of the glass filler. ### Claim 11 (depends on 1) The composition according to claim 1, wherein the glass filler has a content of B2O3 from 0.0 to 5.0% with respect to the total weight of the glass filler. ### Claim 12 (depends on 1) The composition according to claim 1, wherein the glass filler has a total content of lithium oxide (Li2O), sodium oxide (Na2O) and potassium oxide (K2O) from 0.0 to 0.1%, with respect to the total weight of the glass filler. ### Claim 13 (depends on 1) The composition according to claim 1, wherein the glass filler has a total content of silicon dioxide (SiO2) and aluminium oxide (Al2O3) from 71.0 to 76.0% by weight of the glass filler. ### Claim 14 (depends on 1) The composition according to claim 1, wherein the glass filler has a content of silicon dioxide (SiO2) from 68.0 to 72.0%, with respect to the total weight of the glass filler. ### Claim 15 (depends on 1) The composition according to claim 1, wherein the glass filler has a content of Na2O from 8.0 to 11.0%, with respect to the total weight of the glass filler. ### Claim 16 (depends on 1) The composition according to claim 1, wherein the glass filler has a content of Al2O3 from 2.0 to 4.0%, with respect to the total weight of the glass filler. ### Claim 17 (depends on 1) The composition according to claim 1, wherein the glass filler has a content of CaO from 6.0 to 9.0%, with respect to the total weight of the glass filler. ### Claim 18 (depends on 1) The composition according to claim 1, wherein the glass filler has a content of MgO from 1.0 to 3.0%, with respect to the total weight of the glass filler. ### Claim 19 (depends on 1) The composition according to claim 1, wherein the glass filler has a content of B2O3 from 2.0 to 4.0%, with respect to the total weight of the glass filler. ### Claim 20 (depends on 1) The composition according to claim 1, wherein the glass filler has a total content of calcium oxide (CaO), zinc oxide (ZnO), strontium oxide (SrO) and barium oxide (BaO) from 4.0 to 10.0%, with respect to the total weight of the glass filler. ### Claim 21 (depends on 1) The composition according to claim 1, wherein the glass filler has a total content of lithium oxide (Li2O), sodium oxide (Na2O) and potassium oxide (K2O) from 8.0 to 11.0%, with respect to the total weight of the glass filler. ### Claim 22 (depends on 1) The composition according to claim 1, wherein the glass filler is free of titanium oxide (TiO2). ### Claim 23 (depends on 1) The composition according to claim 1, comprising 5.0 to 30.0% by weight of glass filler with respect to the total weight of the composition. ### Claim 24 (depends on 1) The composition according to claim 1, wherein the glass filler is chosen from the group consisting of glass fibres, glass powder, glass flakes, milled fibres, glass beads and mixtures thereof. ### Claim 25 (depends on 1) The composition according to claim 1, wherein the additive is chosen from: colouring agents; UV stabilizers; anti-ageing agents; antioxidants; fluidizing agents; anti-abrasion agents; mould-release agents; stabilizers; plasticizers; impact modifiers; surfactants; brighteners; fillers; fibres; waxes; and mixtures thereof. ### Claim 26 (depends on 1) Granules or powder formed from a composition of claim 1. ### Claim 27 (depends on 26) A method of using the granules of claim 26 for the manufacture of filaments, pipes, films sheets and/or articles that are moulded and transparent. ### Claim 28 (depends on 1) A polyamide-based product, wherein the product is manufactured by moulding, injection moulding, extrusion, coextrusion, hot pressing, multi-injection moulding, rotational moulding, or sintering, of a polyamide composition according to claim 1. ### Claim 29 (depends on 1) A process for manufacturing a transparent article reinforced with glass fillers, the process comprising: a stage of supplying a semicrystalline polyamide; a stage of mixing the semicrystalline polyamide with at least one transparent amorphous PA and at least one glass filler and optionally at least one copolymer comprising polyether blocks and polyamide blocks and/or at least one additive, so as to manufacture a composition according to claim 1; a stage of processing the composition at a temperature T0 within the range from 50 to 120° C.; and then a stage of recovering the transparent article. ### Claim 30 (depends on 29) The process according to claim 29, wherein the article is one of the following: transparent equipment; sports equipment; a watch glass; space equipment; aeronautical or motor vehicle equipment; display glazing; screen component; glazing for a thermal, solar or photovoltaic panel; an article for the construction, furnishing, electrical appliance or decorative industry; article for the games or toys industry; article for the fashion industry; article for the furniture industry; a presentation, packaging, housing, box, container or flask article or component, an article for perfumery, article for the cosmetics or pharmaceutical industry; luggage; a component for protection during transport; a protective shell of a computing, electronic or telecommunications device. ### Claim 31 (depends on 1) The composition according to claim 1, wherein the at least partially cycloaliphatic polyamide comprises more than 50 mol % of an equimolar combination of at least one cycloaliphatic diamine and of at least one aliphatic dicarboxylic acid.