# US 2018/0024273 A1 · Composition for manufacturing contact lenses > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0024273 A1 - Document ID: US20180024273A1 - Status: Published application - Kind: A1 - Application number: 15/719,592 - Filed: 2017-09-29 - Published: 2018-01-25 - Earliest claimed: 2015-06-18 - Assignees: BenQ Materials Corporation - Applicants: BenQ Materials Corporation - Inventors: Fan-Dan JAN; Pei-Yi LIU - Web page: https://patentgrep.com/patent/US20180024273A1 ## CPC - G02B 1/043: {Contact lenses} - B29D 11/00038: {Production of contact lenses} - B29D 11/00134: {Curing of the contact lens material} - C08G 77/54: Nitrogen-containing linkages - C08L 83/08: containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen - C08L 83/12: containing polyether sequences - B29K 2083/00: Use of polymers having silicon, with or without sulfur, nitrogen, oxygen, or carbon only, in the main chain, as moulding material - B29K 2105/0002: {monomers or prepolymers} - B29K 2105/0005: {containing compounding ingredients (releasing, lubricating or separating agents B29C33/56, fibers B29K2105/08, B29K2105/12; fillers B29K2105/16, recycled material B29K2105/26)} - B29K 2105/0032: {Pigments, colouring agents or opacifiyng agents} - B29K 2995/0092: hydrophilic - C08G 77/20: containing silicon bound to unsaturated aliphatic groups - C08G 77/26: nitrogen-containing groups - C08G 77/38: Polysiloxanes modified by chemical after-treatment - C08G 77/388: containing nitrogen - C08G 77/46: containing polyether sequences - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - B29D: PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE (making granules B29B9/00; making preforms B29B11/00) - C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) - B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS ## Abstract The invention provides a material for contact lenses, including a first siloxane macromer shown as formula (I): in formula (I), R1, R2 and R3 are C1-C4 alkyl groups, R4 is C1-C6 alkyl group, R5 is C1-C4 alkylene group, R6 is —OR7O— or —NH—, R7 and R8 are C1-C4 alkylene groups and m is an integer of about 1-2, n is an integer of about 4-80; a second siloxane macromer shown as formula (II): in formula (II), R9, R10 and R11 are C1-C4 alkyl groups, R12, R13 and R15 are C1-C3 alkylene group, R14 is a residue obtained by removing NCO group from an aliphatic or aromatic diisocyanate, and o is an integer of about 4-80, p is an integer of about 0-1; q is an integer of about 1-20; at least one hydrophilic monomer and an initiator. ## Claims ### Claim 1 A composition for manufacturing contact lenses comprising: a first siloxane macromer with the number average molecular weight in a range of 500 to 10,000, represented by the following formula (I) wherein in formula (I), R1, R2 and R3 are independently C1-C4 alkyl groups, R4 is C1-C6alkyl group, R5 is C1-C4 alkylene group, R6 is —OR7O— or —NH—, R7, R8 are independently C1-C4 alkylene groups, m is an integer of 1 to 2 and n is an integer of 4 to 80; a second siloxane macromer, with the number average molecular weight in a range of 1,000 to 10,000, represented by the following formula (II) wherein in formula (II), R9, R10 and R11 are independently C1-C4 alkyl groups, R12, R13 R15, are independently C1-C3alkylene groups, R14 is a residue obtained by removing NCO group from an aliphatic or aromatic diisocyanate, o is an integer of 4 to 80, p is an integer of 0 to 1 and q is an integer of 1 to 20; at least one hydrophilic monomer; an initiator; and a crosslinking agent; wherein the first siloxane macromer of formula (1) is present at an amount of 20 to 45 parts by weight, the second siloxane macromer of formula (II) is present at an amount of 3 to 30 parts by weight, the hydrophilic monomer is present at an amount of 30 to 55 parts by weight, the initiator is present at an amount of 0.1 to 1.0 parts by weight and the crosslinking agent is present at an amount of 0.1 to 5.0 parts by weight based on the total amount of the composition. ### Claim 2 (depends on 1) The composition for manufacturing contact lenses according to claim 1, wherein the first siloxane macromer comprises a siloxane macromer represented by the following formula (I-1) or a siloxane macromer represented by the following formula (I-2): wherein in formula (I-1), r is an integer of 4 to 80, and in formula (I-2), s is an integer of 4 to 80. ### Claim 3 (depends on 1) The composition for manufacturing contact lenses according to claim 1, wherein the second siloxane macromer comprises a siloxane macromer represented by the following formula (II-1) or a siloxane macromer represented by the following formula (II-2): wherein in formula (II-1), t is an integer of 4 to 80, u is an integer of 1 to 10 and in formula (II-2), v is an integer of 4 to 80. ### Claim 4 (depends on 1) The composition for manufacturing contact lenses according to claim 1, wherein the initiator is a thermal initiator or a photo initiator. ### Claim 5 (depends on 1) The composition for manufacturing contact lenses according to claim 1, further comprising a dye and/or an UV-blocking reagent. ### Claim 6 (depends on 1) The composition for manufacturing contact lenses according to claim 1, wherein the crosslinking agent is selected from a group consisting of ethylene glycol dimethacrylate (EGDMA), triethylene ethylene glycol dimethacrylate (TEGDMA), tetraethylene ethylene glycol dimethacrylate (TrEGDMA), poly(ethylene glycol) dimethacrylate, trimethylolpropane tri methacrylate (TMPTA), vinyl methacrylate, ethylenediamine dimethyl acrylamide, glycerol dimethacrylate, triallyl isocyanurate, triallyl cyanurate and the combination thereof.