摘要:
The present invention discloses a phenoxycyclotriphosphazene active ester, a halogen-free resin composition and uses thereof. The phenoxycyclotriphosphazene active ester comprises at least 65 mol.% of a substance having the following structural formula. The halogen-free resin composition comprises 5-50 parts by weight of a phenoxycyclotriphosphazene active ester, 15-85 parts by weight of a thermosetting resin, 1-35 parts by weight of a curing agent, 0-5 parts by weight of a curing accelerator and 0-100 parts by weight of an inorganic filler. The present invention discloses introducing phenoxycyclotriphosphazene active ester into a thermosetting resin, reacting active esters with thermosetting resins, such as epoxy resin, without producing hydroxy groups, which not only satisfies the requirements on being halogen-free and flame retardancy, but also improves the electrical properties (decreasing and stabilizing Dk and Df) of the system, so as to make non-halogenation of high frequency and high speed substrate materials possible.
摘要:
The present invention discloses a halogen-free resin composition, and a prepreg and a laminate used for printed circuit. The halogen-free resin composition comprises: alkyl phenol epoxy resin; benzoxazine resin; alkyl phenol novolac curing agent; phosphorus-containing flame retardant. The alkyl phenol epoxy resin used in the present invention has many alkyl branched chains in its molecular structure, making the composition have excellent dielectric properties while it has higher glass transition temperature, low water absorption and good heat resistance. Mixing benzoxazine resin into the composition can further reduce dielectric constant, dielectric loss value and water absorption of the cured product. With alkyl phenol novolac being used as curing agent, the advantages that the molecular structure thereof has many alkyls and thus the dielectric properties are excellent and the water absorption is low are fully played. A prepreg and a laminate used for printed circuit prepared using the resin composition have low dielectric constant, low dielectric loss factor, low water absorption, high dimensional stability, high thermal resistance and good flame retardancy, processability and chemical resistance.
摘要:
The invention relates to polymer compound for a PVC-free sealing system for container closures, which is equipped with at least one oxygen-consuming compound, in which the Shore D hardness of the polymer compound is at least 20 and the polymer compound has a melt flow index (190°C, 5 kg) of at least 5.
摘要:
The present invention relates to a halogen-free flame-retardant resin composition, based on the weight parts of organic solids, comprising (A) from 1 to 10 parts by weight of bismaleimide resin, (B) from 30 to 60 parts by weight of benzoxazine resin, (C) from 10 to 40 parts by weight of polyepoxy compound, (D) from 5 to 25 parts by weight of phosphorous-containing flame retardant, and (E) from 1 to 25 parts by weight of curing agent, which is amine curing agent and/or phenolic resin curing agent. The present invention further provides prepregs, laminates, laminates for printed circuits prepared from said resin composition.
摘要:
The present invention pertains to a fluorine-free composition for treating textile articles being water repellant, sol resistant and stain resistant, especially carpets comprising a first composition comprising an aqueous silicone emulsion, an aqueous dispersion of a silane quaternary ammonium salt and water and a second composition comprising a soil repellency component that is an aqueous dispersion of colloidal organosiloxane copolymers.
摘要:
The present invention relates to a halogen-free flame-retardant resin composition, based on the weight parts of organic solids, comprising (A) from 1 to 10 parts by weight of bismaleimide resin, (B) from 30 to 60 parts by weight of benzoxazine resin, (C) from 10 to 40 parts by weight of polyepoxy compound, (D) from 5 to 25 parts by weight of phosphorous-containing flame retardant, and (E) from 1 to 25 parts by weight of curing agent, which is amine curing agent and/or phenolic resin curing agent. The present invention further provides prepregs, laminates, laminates for printed circuits prepared from said resin composition.
摘要:
The present invention relates to halogen-free flame retardant compositions essentially comprising polyamide polymers (preferred is PA6), at least an Hypophosphorous acid metal salt (preferred is Aluminium hypophosphite), at least an organic phosphinate metal salt (preferred is Aluminium Di Ethyl Phosphinate), at least a Nitrogen based flame retardant agent (preferred is Melamine Cyanurate), at least an organic polyhydric polymer (preferred is EVOH) and optionally further conventional components. Such compositions are highly flame retarded at low thickness and have high Glow Wire temperature resistance.
摘要:
Provided in the present invention are a halogen-free epoxy resin composition, prepreg and laminate using the same, the halogen-free epoxy resin composition comprising: (A) a halogen-free epoxy resin; (B) a crosslinking agent; and (C) a phosphorous-containing phenolic resin, the phosphorous-containing phenolic resin being formed by a synthesis of phenol and formaldehyde with dicyclopentadiene phenol, and being substituted by 9,10-dihydro-9-oxa-10-phosphapheanthrene-10-oxide or a derivative thereof The prepreg and laminate prepared from the halogen-free epoxy resin composition have a high heat resistance, a low dielectric constant, a low dielectric loss factor and a low water absorption rate, and achieve halogen-free flame retardance.
摘要:
The present invention relates to halogen-free flame retardant compositions essentially comprising polyamide polymers (preferred is PA6), at least an Hypophosphorous acid metal salt (preferred is Aluminium hypophosphite), at least an organic phosphinate metal salt (preferred is Aluminium Di Ethyl Phosphinate), at least a Nitrogen based flame retardant agent (preferred is Melamine Cyanurate), at least an organic polyhydric polymer (preferred is EVOH) and optionally further conventional components. Such compositions are highly flame retarded at low thickness and have high Glow Wire temperature resistance.