28 results about "Phosphinate" patented technology

A copolyester composition comprising a metal phosphinate flame retardant, an acrylic silicone impact modifier, and a silicate mineral, which provides high tensile and / or flexural modulus while maintaining thermal and impact properties and having improved flame retardant properties, a method for manufacturing the copolyester composition, and an article manufactured from the copolyester composition are provided.

A process for manufacturing a masterbatch comprises the following steps: (a) bringing at least one initial polymer comprising at least one carbon-carbon unsaturation into contact with at least one 1,3-dipolar grafting agent bearing at least one nitrile oxide dipole in the presence of at least one organophosphorus additive selected from the group consisting of phosphoric acid triesters, phosphonates, phosphinates, phosphine oxides and the mixtures of these compounds, and (b) recovering the masterbatch obtained in the preceding step. The masterbatch and compositions containing it and also tires comprising such compositions are also disclosed.

The application provides a flame retardant composition and application thereof and a polyamide composite material, the flame retardant composition comprises 5-15 parts of a dialkyl phosphinic acid metal salt and 0.5-4 parts of an imidazolium dialkyl phosphinate salt in terms of weight parts. The flame retardant composition, by compounding the imidazolium dialkyl phosphinate salt with the dialkyl phosphinic acid metal salt, can effectively improve the flame retardant efficiency, mechanical properties and precipitation resistance of the material, and meanwhile can reduce the content of the dialkyl phosphinic acid metal salt in the resin system.

A copolyester composition, a method of making the copolyester composition, and an article made from the copolyester composition, the copolyester composition comprising a metal phosphinate flame retardant, a polymeric impact modifier, and / or a reinforcing filler material, the copolyester composition having improved flame retardant properties while providing high impact strength, elongation at break, and tensile and / or flexural modulus.

The polyamide resin composition of the present invention is characterized by comprising 100 parts by weight of an aliphatic polyamide resin; 65 to 135 parts by weight of glass fiber; 35 to 65 parts by weight of glass powder; 5 to 28 parts by weight of kaolin; and 25 to 75 parts by weight of a flame retardant comprising one or more of a metal phosphinate compound and a phosphate nitrogen compound. The polyamide resin composition has excellent flame resistance, flame retardancy, impact resistance, rigidity, thermal stability, and a balance of these physical properties.

The application discloses a polyamide composition and a preparation method and application thereof. The polyamide composition comprises the following components in parts by weight: 32-60 parts of a polyamide resin, 1-4 parts of a flame-retardant synergist, 10-50 parts of glass fiber and 13-30 parts of a composite flame retardant, wherein the composite flame retardant comprises aluminum diethyl phosphinate and amino silicon oil. The polyamide composition prepared by adding the composite flame retardant comprising aluminum diethyl phosphinate and amino silicon oil into the polyamide resin system can effectively inhibit the outward migration of corrosive phosphorus elements, and the prepared polyamide composition has good flame-retardant performance.

The invention provides dialkyl phosphorus-containing compounds, namely reactive monohydroxy-functional dialkyl phosphinates, that act as very efficient reactive flame retardants in flexible polyurethane foams. The invention further provides fire-retardant polyurethane compositions comprising the reaction product of the monohydroxy-functional dialkyl phosphinates with polyols and isocyanate foam-forming components.

The present invention provides a highly flame-retardant sealing sheet for solar cell modules and a solar cell module. [Solution] A sealing sheet for solar cell modules, wherein the sealing sheet uses a polyolefin resin as the base resin and further contains a phosphinate metal salt.

The application discloses a preparation method of tackifying flame-retardant organic silicon pressure-sensitive adhesive, which comprises the following steps: synthesizing an organic silicon tackifier MQ-ETMS through a silicon-hydrogen addition reaction between a vinyl trimethoxysilane coupling agent and a methyl hydrogen-containing silicon resin; and preparing a flame retardant K-ADP by wet modification of an aluminum diethyl phosphinate containing an ethylenic bond, wherein the prepared organic silicon tackifier and the flame retardant are introduced into an organic silicon pressure-sensitive adhesive system, and then high-performance organic silicon pressure-sensitive adhesive tape is prepared through blending, coating, solvent evaporation and heating crosslinking. The tackifier synthesized by the application is rich in methoxy functional groups, which enhances the interaction between the organic silicon pressure-sensitive adhesive and the surface of the adherend. Meanwhile, the aluminum diethyl phosphinate containing an ethylenic bond is surface-modified by using the ethylenic bond-containing silane coupling agent, so that the dispersion problem of traditional flame retardants added in the organic silicon pressure-sensitive adhesive is solved, and the adhesion and flame retardation of the organic silicon pressure-sensitive adhesive are improved.

The application discloses a flame retardant composition, a resin composite material and application and a molded part thereof, and belongs to the technical field of flame retardants. The application combines dihydrocarbyl-substituted phosphinate, mono-hydrocarbyl-substituted phosphinate and mono-hydrocarbyl-substituted phosphonate according to specific amounts, controls the dihydrocarbyl-substituted phosphinate to contain a specific amount of dihydrocarbyl-substituted phosphinate with a tertiary carbon structure, so that the prepared flame retardant composition can improve the flame retardant performance of a material and reduce mold fouling in a processing process when being applied to a resin, and is suitable for preparing electronic and electrical products.

The application relates to an anti-migration modified aluminum diethyl phosphinate and a preparation method thereof, and belongs to the technical field of flame retardants. The preparation method of the anti-migration modified aluminum diethyl phosphinate comprises three steps of synthesizing aluminum diethyl phosphinate superfine powder, one-time coating of hydroxyapatite and secondary coating of MQ silicon resin. After the anti-migration modified aluminum diethyl phosphinate is added into nylon 66 at an addition amount of 6 wt%, the tensile strength of the nylon 66 is 80.8-84.2 MPa, the bending strength is 120.6-124.1 MPa, the bending modulus is 3.1-3.3 GPa, the notched impact strength is 11.8-14.9 kJ / m 2 , the limiting oxygen index is 34.3-35.6%, the UL-94 V flame retardant grade reaches V-0 grade, the dispersion uniformity is 0, the anti-migration property is no precipitation, and the acidic corrosion loss amount is 0.07-0.1%.

The application discloses an ABS composition, a preparation method thereof and a molded part, and belongs to the technical field of polymer materials. The application adds stearate, dihydrocarbyl-substituted phosphinic acid salt, monohydrocarbyl-substituted phosphinic acid salt and a bromine-based flame retardant into ABS resin, and controls the respective dosages of the components in a specific range, so that the obtained composition has good flame retardance and moisture resistance, is suitable for application scenarios with high index requirements for flame retardance and moisture resistance, and can be particularly used for the production and preparation of electronic and electrical products and matched structural parts used in a bathroom environment.

This application discloses a thermoplastic resin composition, its preparation method, and the resulting product, belonging to the field of polymer materials technology. This application simultaneously adds specific amounts of brominated polystyrene, dialkyl-substituted phosphinates, and monoalkyl-substituted phosphinates of specific weight-average molecular weights to a matrix resin including at least one of ABS, SAN, and HIPS. By utilizing their synergistic effect, the resulting thermoplastic resin composition exhibits good flame retardancy, strong resistance to heat distortion, and is less prone to tiger-skin patterns during injection molding, making it suitable for manufacturing electronic and electrical products.

The application belongs to the technical field of composite materials, and particularly relates to an environment-friendly flame-retardant composite material for pipes and a preparation method thereof. The composite material comprises the following components in parts by weight: 80-100 parts of aliphatic polyamide, 10-15 parts of toughening agent, 20-30 parts of inorganic fiber filler, 8-14 parts of alkyl phosphinic acid salt, 6-10 parts of attapulgite, 2-4 parts of brominated polystyrene, 1-3 parts of coupling agent, 1-3 parts of lubricant, and 1-3 parts of antioxidant. The aliphatic polyamide is used as a base resin, and the alkyl phosphinic acid salt, the attapulgite and the brominated polystyrene are ternary compounded, so that multiple targets of improving flame-retardant efficiency, maintaining mechanical properties and improving processing stability are achieved. Technical defects such as large single flame-retardant additive amount, limited flame-retardant effect and easy precipitation of the alkyl phosphinic acid salt are effectively overcome, so that the composite material achieves a more optimal comprehensive balance in flame retardancy, mechanical strength and use reliability.

The application discloses an ABS composition, a preparation method thereof and a part, and belongs to the technical field of polymer materials. The application adds dihydrocarbyl-substituted phosphinic acid salt, mono-hydrocarbyl-substituted phosphinic acid salt and specific brominated epoxy resin into ABS resin, and controls the respective dosages of the components in a specific range, so that the obtained composition has good flame retardance and low mold fouling, and is suitable for preparing an electrified peripheral part of a household appliance or an electronic and electrical product.

The application discloses a PA composition, a preparation method thereof and a molded part, and belongs to the technical field of polymer materials. The PA resin is added with specific amounts of a dihydrocarbyl-substituted phosphinic acid salt, a monohydrocarbyl-substituted phosphinic acid salt, a bromine-based flame retardant and a specific lubricant, so that the material has good flame retardance and a low surface friction coefficient, and is suitable for application in the fields of automobiles, electronic and electrical appliances and mechanical industry.

The invention provides a flame-retarded rigid polyurethane foam comprising polyol and isocyanate foam-forming components, and as a flame retardant, the reaction product of a dialkyl phosphorus-containing compound (i.e., a reactive monohydroxy-functional dialkyl phosphinate ester) which functions as a highly effective reactive flame retardant in the rigid polyurethane foam.

The application discloses a flame retardant composition, a resin composite material and application and a molded part thereof, and belongs to the technical field of flame retardants. The application is prepared by compounding dihydrocarbyl-substituted phosphinate, mono-hydrocarbyl-substituted phosphinate and mono-hydrocarbyl-substituted phosphonate in specific amounts, so that the prepared flame retardant composition can improve the flame retardant performance and heat-resistant oxygen aging ability of the material when applied to resin, and is suitable for preparing electronic and electrical products.

This application discloses an ABS composite material, its preparation method, and molded parts, belonging to the field of polymer materials technology. This application achieves good flame retardancy by adding specific toughening agents, dialkyl-substituted phosphinates, monoalkyl-substituted phosphinates, and brominated flame retardants to ABS resin, and controlling the dosage of each component within a specific range. Simultaneously, the resulting composite material exhibits good flame retardancy, and the finished parts have a good appearance after painting, making it suitable for exterior parts of home appliances, two-wheeled electric vehicles, and other products.

This invention belongs to the field of flame retardant materials technology, specifically relating to a spherical, pinecone-like layered structure aluminum hypophosphite flame retardant, its preparation method, and its application. The flame retardant is an inorganic phosphorus-based halogen-free flame retardant. The aluminum hypophosphite flame retardant exhibits a spherical, pinecone-like layered structure, with each particle composed of multiple thin lamellar layers stacked alternately to form a regular spherical outer contour. The thermal decomposition temperature of the aluminum hypophosphite flame retardant is >330℃, and its particle size distribution meets the following requirements: D10 particle size 8~15μm, D50 particle size 25~40μm, D90 particle size 60~80μm, D97 particle size 80~100μm, and a specific surface area of ​​1.2~3.5m² / g. This invention employs a continuous preparation process involving preliminary crystallization in a crystallization kettle, dissolution in a dissolving kettle, and crystal growth in a precipitation kettle. The preparation process parameters are controllable, requires no additives, and is suitable for industrial mass production. This flame retardant can be applied to engineering plastics, achieving both high-efficiency flame retardancy and good mechanical properties.

This invention relates to the technical field of polyolefin insulation materials for wires and cables, specifically to a flame-retardant and anti-aging ethylene-propylene copolymer composition and its preparation method. The composition uses ethylene-propylene copolymer as a matrix, introduces an organophosphorus flame retardant composed of aluminum phosphinate and melamine polyphosphate, which synergistically retards the flame with a magnesium-aluminum layered double hydroxide treated with organosilane / fatty acid salts. A multi-component anti-aging system containing hindered phenols and phosphites is employed, with some anti-aging components pre-adsorbed onto the surface of fumed silica nanofillers. Simultaneously, an ethylene-propylene graft compatibilizer containing maleic anhydride groups is added. The composition is formed through a two-step melt blending and granulation process using a flame-retardant masterbatch. This material meets flame-retardant requirements while exhibiting a high oxygen index and good drip suppression effect. It also demonstrates excellent retention of mechanical and electrical properties after thermal aging, making it suitable for cable sheaths and insulation layers in long-term service.

The present application relates to the technical field of LED packaging material, and particularly relates to a white resin composition for LED packaging, a preparation method and application thereof. According to weight parts, the raw materials for preparing the resin composition include: 100 parts of epoxy resin, 0.1-5 parts of first antioxidant, 0.1-5 parts of second antioxidant, 120-170 parts of curing agent, 0.1-5 parts of catalyst, 600-1300 parts of inorganic filler, 150-600 parts of white pigment, 1-10 parts of release agent, and 0.1-2 parts of whitening agent; the first antioxidant includes hindered phenolic antioxidant; the second antioxidant includes phosphorus-hydrogen bond-containing phosphinate antioxidant; and the release agent includes polyether-modified dimethylsiloxane. The obtained composition has high reflectivity, heat discoloration resistance and good de-runner workability, and can meet the packaging requirements of LED support.

The application discloses a flame retardant composition, a resin composite material and applications and parts thereof, and belongs to the technical field of flame retardants. The application combines dihydrocarbyl-substituted phosphinic acid salts and monohydrocarbyl-substituted phosphinic acid salts, controls the dosages of the two within a specific range, and contains a specific amount of dihydrocarbyl-substituted phosphinic acid salts with a tertiary carbon structure, so that the prepared flame retardant composition can improve the flame retardancy and light aging yellowing resistance when applied to resin, and is suitable for preparing electronic and electrical products.

This invention discloses a halogen-free flame-retardant thermoplastic elastomer composition and its preparation method. By mass ratio, the raw material composition of the halogen-free flame-retardant thermoplastic elastomer composition includes: SEBS 10%-45%, white oil 5%-40%, polyolefin 5%-40%, halogen-free flame-retardant system 8%-40%, and other additives 0.5%-10%. Based on the total mass of the halogen-free flame-retardant system, the composition of the halogen-free flame-retardant system includes: dialkyl phosphinate 20%-70%, melamine derivative 20%-50%, and char-forming component 10%-50%. Based on the total mass of the char-forming component, the composition of the char-forming component includes: EVA with a VA content greater than 30% 30% 30% VA, alkyl phosphate metal salt 20%-70%, and piperazine pyrophosphate 0-50%. This invention utilizes the synergistic effect of high VA content EVA and alkyl phosphate metal salt to avoid the risk of stress cracking in halogen-free flame-retardant TPE materials.

Flame-retardant polyamide molding compound, particularly for railway applications, comprising, preferably consisting of: A 34-88 wt% semicrystalline aliphatic polyamide with a C / N ratio of at least 8; B 6-21 wt% flame retardant consisting of: B1 50-100 wt% of at least one metal phosphinate; B2 0-50 wt% of at least one flame-retardant synergist and / or at least one flame retardant containing nitrogen and phosphorus; the sum of components B1 and B2 resulting in 100 wt% of component B; C 1-10 wt% graphite; D 0-25 wt% polyamide elastomer; E 0-10 wt% plasticizer; F 0-10 wt% polyolefin; G 0-5 wt% additives, other than A to F; being the sum of the weight proportions of components D to F from 5 to 30% by weight, with respect to the sum of the weight percentages of components A to G, and adding the weight proportions of components A to G 100% by weight.

The application discloses a kind of radiation protection high flame-retardant special optical cable and preparation method, bismuth oxide and barium sulfate are first mixed with matrix resin to form a basic shielding premix, then tungsten oxide is synchronously post-added with zinc borate and aluminum diethyl phosphinate, and the outer sheath layer is formed by flame-retardant system dispersion, homogenization granulation, extrusion coating and crosslinking. The method improves the dispersion stability, extrusion stability and flame-retardant carbonization holding effect of high filler sheath material through stage wetting and torque process control, so that the outer sheath layer still maintains high radiation shielding ability after burning.

A sand core including a sand granular material, at least one binder and an additive selected from a compound of the phosphinate group. Method of making sand cores including a first step of contacting or mixing a granular sand material and at least one binder and a second curing step, wherein the granular sand material or the mixture of granular material and / or binder includes an additive selected from a compound of the phosphinate group.