# US 2018/0022898 A1 · Flame-retardant resin composition, thermosetting resin composition, flame-retardant engineering plastic and composite metal substrate > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0022898 A1 - Document ID: US20180022898A1 - Status: Published application - Kind: A1 - Application number: 15/640,010 - Filed: 2017-06-30 - Published: 2018-01-25 - Earliest claimed: 2016-07-21 - Assignees: Guangdong Guangshan New Material Co., Ltd. - Applicants: Guangdong Guangshan New Material Co., Ltd. - Inventors: Qingchong Pan - Web page: https://patentgrep.com/patent/US20180022898A1 ## CPC - C08K 5/375: containing six-membered aromatic rings {(C08K5/3725 takes precedence)} - C08G 59/245: {aromatic} - C08G 59/4021: {Ureas; Thioureas; Guanidines; Dicyandiamides} - C08G 59/686: {containing nitrogen} - C08J 5/249: {characterised by the additives used in the prepolymer mixture} - C08K 5/21: Urea; Derivatives thereof, e.g. biuret - C08K 5/34922: {Melamine; Derivatives thereof} - C08K 5/3725: {containing nitrogen} - C08K 5/523: with hydroxyaryl compounds - C08K 5/5313: Phosphinic compounds, e.g. R2=P(:O)OR' - C08K 5/5357: cyclic - C08L 63/00: Compositions of epoxy resins; Compositions of derivatives of epoxy resins - C08L 67/02: Polyesters derived from dicarboxylic acids and dihydroxy compounds (C08L67/06 takes precedence) - C08J 2363/00: Characterised by the use of epoxy resins; Derivatives of epoxy resins - C08K 5/5205: {Salts of P-acids with N-bases} - C08L 55/02: ABS [Acrylonitrile-Butadiene-Styrene] polymers - C08L 2201/02: Flame or fire retardant/resistant - C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09) - C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS - C08J: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29) - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) ## Abstract The present invention provides a flame-retardant resin composition, a thermosetting resin composition, a flame-retardant engineering plastic and a composite metal substrate. The flame-retardant resin composition comprises a sulfur-containing flame retardant, a phosphorus-containing flame retardant and/or a nitrogen-containing flame retardant, and a halogen-free epoxy resin. The sulfur-containing flame retardant, phosphorus-containing flame retardant and nitrogen-containing flame retardant in the flame-retardant resin composition of the present invention play a synergistic effect, making the prepared copper clad laminate have good flame retardancy, and also good heat resistance, water resistance, adhesion, mechanical properties and electrical properties, and making the prepared engineering plastic have good flame retardancy and good mechanical properties, and thus the flame-retardant resin composition of the present invention is a kind of flame-retardant composition with large economy and friendly environment. ## Claims ### Claim 1 A flame-retardant resin composition, characterized in that the flame-retardant resin composition comprises a sulfur-containing flame retardant, a phosphorus-containing flame retardant and/or a nitrogen-containing flame retardant, and a halogen-free epoxy resin. ### Claim 2 (depends on 1) The flame-retardant resin composition of claim 1, characterized in that the weight percentage of the sulfur element in the flame-retardant resin composition is 5% or less. ### Claim 3 (depends on 1) The flame-retardant resin composition of claim 1, characterized in that the weight percentage of the phosphorus element in the flame-retardant resin composition is 0.1% or higher. ### Claim 4 (depends on 1) The flame-retardant resin composition of claim 1, characterized in that the weight percentage of the nitrogen element in the flame-retardant resin composition is 0.1% or higher. ### Claim 5 (depends on 1) The flame-retardant resin composition of claim 1, characterized in that the sulfur-containing flame retardant is p-benzenedithiol and/or 4,4′-diaminodiphenyl disulfide. ### Claim 6 (depends on 1) The flame-retardant resin composition of claim 1, characterized in that the phosphorus-containing flame retardant is anyone selected from the group consisting of DOPO etherified bisphenol A, DOPO modified epoxy resin, tris(2,6-dimethylphenyl)phosphine, tetra-(2,6-dimethylphenyl) resorcinol bisphosphate, resorcinol tetraphenyl diphosphate, triphenyl phosphate, bisphenol A bis(diphenyl phosphate), phosphonitrile flame retardant, 10-(2,5-dihydroxyphenyl)-10-hydro-9-oxa-10-phosphaphenanthrene-10-oxide, 10-(2,5-dihydroxynaphthyl)-10-hydro-9-oxa-10-phosphaphenanthrene-10-oxide and 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide flame retardants, or a mixture of at least two of them. ### Claim 7 (depends on 1) The flame-retardant resin composition of claim 1, characterized in that the nitrogen-containing flame retardant is anyone selected from the group consisting of biurea, melamine and melamine phosphate, or a combination of at least two of them. ### Claim 8 (depends on 1) The flame-retardant resin composition of claim 1, characterized in that the flame-retardant resin composition further comprises other flame-retardant materials. ### Claim 9 (depends on 8) The flame-retardant resin composition of claim 8, characterized in that the other flame-retardant material is anyone selected from the group consisting of organosilicone flame retardant, chlorine-containing organic flame retardant and inorganic flame retardant, or a combination of at least two of them. ### Claim 10 (depends on 9) The flame-retardant resin composition of claim 9, characterized in that the organosilicone flame retardant is anyone selected from the group consisting of silicone oil, silicone rubber, silane coupling agent, polysiloxane and organosilanolamide, or a combination of at least two of them. ### Claim 11 (depends on 9) The flame-retardant resin composition of claim 9, characterized in that the chlorine-containing organic flame retardant is anyone selected from the group consisting of dioctyl tetrachlorophthalate, chlorendic anhydride, chlorendic acid and tetrachlorobisphenol A, or a combination of at least two of them. ### Claim 12 (depends on 9) The flame-retardant resin composition of claim 9, characterized in that the inorganic flame retardant is anyone selected from the group consisting of aluminum hydroxide, magnesium hydroxide, antimony trioxide, and zinc borate, or a combination of at least two of them. ### Claim 13 (depends on 1) The flame-retardant resin composition of claim 1, characterized in that the halogen-free epoxy resin is anyone selected from the group consisting of bisphenol A epoxy resin, bisphenol F epoxy resin, phenol novolac epoxy resin, bisphenol A novolac epoxy resin, o-cresol novolac epoxy resin, dicyclopentadiene epoxy resin, isocyanate epoxy resin, and biphenyl epoxy resin, or a mixture of at least two of them. ### Claim 14 (depends on 1) The flame-retardant resin composition of claim 1, characterized in that the mass percentage of the halogen-free epoxy resin in the flame-retardant resin composition is 70-95%. ### Claim 15 (depends on 1) A flame-retardant engineering plastic, characterized in that the flame-retardant engineering plastic comprises the flame-retardant resin composition of claim 1. ### Claim 16 (depends on 0, 1, 2, 3, 4, 15) The flame-retardant engineering plastic of claim 15, characterized in that the flame-retardant engineering plastic comprises the following components in parts by weight: 40-60 parts by weight of a plastic, 5-15 parts by weight of the flame-retardant resin composition of anyone of claims 1-4, 0.5-3 parts by weight of an auxiliary agent and 10-20 parts by weight of a reinforcing filler. ### Claim 17 (depends on 16) The flame-retardant engineering plastic of claim 16, characterized in that the plastic is anyone selected from the group consisting of PC, ABS, PA, PP and PET, or a combination of at least two of them. ### Claim 18 (depends on 16) The flame-retardant engineering plastic of claim 16, characterized in that the auxiliary agent is anyone selected from the group consisting of a lubricant, an antioxidant and a compatibilizer, or a combination of at least two of them. ### Claim 19 (depends on 1) A thermosetting resin composition, characterized in that the thermosetting resin composition comprises the flame-retardant resin composition of claim 1. ### Claim 20 (depends on 19) The thermosetting resin composition of claim 19, characterized in that the thermosetting resin composition further comprises a curing agent; the curing agent is anyone selected from the group consisting of dicyandiamide, phenolic resin, aromatic amine, acid anhydride, active ester curing agent and active phenolic curing agent, or a combination of at least two of them. ### Claim 21 (depends on 19) The thermosetting resin composition of claim 19, characterized in that the thermosetting resin composition further comprises a curing accelerator; the curing accelerator is anyone selected from the group consisting of imidazole curing accelerator, organic phosphine curing accelerator, and tertiary amine curing accelerator, or a mixture of at least two of them.