专利号:US-2025145775-A1 优先权日:2022-02-18 标题 :Synthesis of melamine polyphosphate with low residual melamine 发明人:EBERHARDT JAN; GUYON PASCAL; ESCHE THOMAS 权利人:BASF SE 摘要:The present invention relates to a method for producing a melamine depleted melamine polyphosphate which comprises heating a crude melamine polyphosphate for a hold time of at least one hour to a hold temperature of above 290° C.; to a melamine depleted melamine polyphosphate which contains a residual melamine and where the residual melamine concentration is below 0.2 wt %; and to a polymer composition comprising the melamine depleted melamine polyphosphate.
专利号:WO-2023156294-A1 优先权日:2022-02-18 标 题 :Synthesis of melamine polyphosphate with low residual melamine
专利号:US-8309655-B2 优先权日:2009-12-22 标题 :Methods for the preparation of a poly(arylene ether) polysiloxane multiblock copolymer, multiblock copolymers produced thereby, and associated compositions and articles 发明人:KAMALAKARAN RADHA; SRINIVASAN VEERARAGHAVAN; CHOWDHURY RAJESH; KARAMBELKAR VIVEK VASANT 权利人:KAMALAKARAN RADHA; SRINIVASAN VEERARAGHAVAN; CHOWDHURY RAJESH; KARAMBELKAR VIVEK VASANT; SABIC INNOVATIVE PLASTICS IP 摘要:A poly(arylene ether)-polysiloxane multiblock copolymer is prepared by the reaction of a hydroxy-diterminated poly(arylene ether), a hydroxyaryl-diterminated polysiloxane, and an aromatic diacid chloride. This synthesis overcomes disadvantages of known syntheses of poly(arylene ether)-polysiloxane block copolymers. The poly(arylene ether)-polysiloxane multiblock copolymer is useful for improving the melt processability of poly(arylene ether) compositions.
专利号:KR-20240151794-A 优先权日:2022-02-18 标题:Synthesis of melamine polyphosphate with low residual melamine
专利号:US-4385140-A 优先权日:1978-02-14 标题 :Modified azulmic acids 发明人:WAGNER KUNO; FINDEISEN KURT 权利人:BAYER AG 摘要:The present invention relates to new modified azulmic acids, several processes for their preparation and their use as intermediate products for the synthesis of numerous products.
专利号:TW-202344576-A 优先权日:2022-02-18 标题:Synthesis of melamine polyphosphate with low residual melamine