# US 2010/0168294 A1 · 4,4'-biphenol polysulfone compositions, process to prepare them, and articles made thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2010/0168294 A1 - Document ID: US20100168294A1 - Status: Published application - Kind: A1 - Application number: 12/700,015 - Filed: 2010-02-04 - Published: 2010-07-01 - Earliest claimed: 2002-12-17 - Assignees: Solvay Advanced Polymers, L.L.C. - Inventors: Mohammad Jamal EL-HIBRI - Web page: https://patentgrep.com/patent/US20100168294A1 ## CPC - C08K 5/51: Phosphorus bound to oxygen - C08K 5/5393: Phosphonous compounds, e.g. R—P(OR')2 - C08L 81/06: Polysulfones; Polyethersulfones - C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09) - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) ## Abstract 4,4′-Biphenol polysulfone composition comprising: as main ingredient, at least one polysulfone comprising more than 50 mol. % of recurring units formed by reacting 4,4′-biphenol with at least one sulfone monomer SM1 (Bo1 PSU), more than 0.01% by weight, based on the total weight of the composition, of at least one phosphorus-containing compound chosen from organic phosphites and organic phosphonites, and at least one polysulfone comprising more than 50 mol. % of recurring units formed by reacting bisphenol A with at least one sulfone monomer SM2 (Bo1 A PSU). 4,4′-Biphenol polysulfone composition containing at least 60% by weight, based on the total weight of the 4,4′-biphenol polysulfone composition, of at least one Bo1 PSU, said composition having a melt viscosity ratio at 410° C. and at a shear rate of 50 s−1 (VR40) of below 1.20. Process which is especially well-suited to prepare the above compositions. Articles made from the above compositions or prepared by the above process. ## Claims ### Claim 1 A 4,4′-biphenol polysulfone composition comprising: at least one polysulfone comprising more than 50 mol. % of recurring units formed by reacting 4,4′-biphenol with at least one sulfone monomer SM1 (Bo1 PSU); and at least one organic phosphonite. ### Claim 2 (depends on 1) The composition according to claim 1, comprising more than 0.01% by weight, based on the total weight of the composition, of said organic phosphonite. ### Claim 3 (depends on 1) The composition according to claim 1, which comprises more than 0.05% by weight, based on the total weight of the composition, of said organic phosphonite. ### Claim 4 (depends on 1) The composition according to claim 1, which comprises between 0.09% and 0.40% by weight, based on the total weight of the composition, of said organic phosphonite ### Claim 5 (depends on 1) The composition according to claim 1, wherein SM1 comprises a 4,4′-dihalodiphenylsulfone. ### Claim 6 (depends on 1) The composition according to claim 1, wherein the Bo1 PSU consists of recurring units formed by reacting 4,4′-biphenol with at least one 4,4′-dihalodiphenylsulfone. ### Claim 7 (depends on 1) The composition according to claim 1, wherein SM1 comprises a 4,4′-bis(4-halophenylsulfonyl)-1,1′-biphenyl. ### Claim 8 (depends on 1) The composition according to claim 1, wherein the Bo1 PSU consists of recurring units formed by reacting 4,4′-biphenol with at least one 4,4′-bis(4-halophenylsulfonyl)-1,1′-biphenyl. ### Claim 9 (depends on 1) The composition according to claim 1, which comprises at least 60% by weight, based on the total weight of the composition, of the Bo1 PSU. ### Claim 10 (depends on 1) An article comprising the composition according to claim 1. ### Claim 11 (depends on 10) The article according to claim 10, which is manufactured by an injection moulding process. ### Claim 12 A 4,4′-biphenol polysulfone composition comprising: at least one polysulfone comprising more than 50 mol. % of recurring units formed by reacting 4,4′-biphenol with at least one sulfone monomer SM1 (Bo1 PSU); and at least one phosphorus-containing compound selected from the group consisting of one or more organic phosphites and one or more organic phosphonites. ### Claim 13 (depends on 12) The composition according to claim 12, wherein the one or more organic phosphites comprise tris(2,4-di-t-butyl-phenyl)phosphite. ### Claim 14 (depends on 12) The composition according to claim 12, which comprises at least 60% by weight, based on the total weight of the composition, of the Bo1 PSU. ### Claim 15 (depends on 12) The composition according to claim 12, which comprises between 0.09% and 0.40% by weight, based on the total weight of the composition, of the phosphorus-containing compound. ### Claim 16 (depends on 12) The composition according to claim 12, which comprises the following four phosphorous-containing compounds: ### Claim 17 (depends on 12) An article comprising the composition according to claim 12. ### Claim 18 (depends on 17) The article according to claim 17, which is manufactured by an injection moulding process.