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1.发明申请公开(公告)号：US20170210850A1
公开(公告)日：2017-07-27
申请号：US15329270
申请日：2015-07-29
Applicant: DSM IP Assets B.V.
Abstract: The present invention relates to a process for preparing a polyamide, a polyamide material obtainable by the said process, a nylon salt to be used therein, and a process for making the nylon salt. The process for preparing the polyamide is a direct solid state polymerization process. The salt used herein is a granulate material, prepared by a process, comprising spraying an aqueous solution comprising a diamine and a dicarboxylic acid dissolved in an aqueous medium, or an aqueous slurry comprising a diammonium dicarboxylate salt dispersed in an aqueous medium directly obtained from such an aqueous solution, onto or in a fluidized bed of diammonium dicarboxylate salt particles, while evaporating the aqueous medium, thereby forming a granulate salt material.
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2.发明申请公开(公告)号：US20220098368A1
公开(公告)日：2022-03-31
申请号：US17513665
申请日：2021-10-28
Applicant: DSM IP ASSETS B.V.
Abstract: Processes for preparing a polyamide, a polyamide material obtained by such processes, a nylon salt to be used therein, and processes for making the nylon salt are disclosed. The processes for preparing the polyamide include a direct solid state polymerization process. The salt used herein is a granulate material, prepared by a process, comprising spraying an aqueous solution comprising a diamine and a dicarboxylic acid dissolved in an aqueous medium, or an aqueous slurry comprising a diammonium dicarboxylate salt dispersed in an aqueous medium directly obtained from such an aqueous solution, onto or in a fluidized bed of diammonium dicarboxylate salt particles, while evaporating the aqueous medium, thereby forming a granulate salt material.
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3.发明申请公开(公告)号：US20200165388A1
公开(公告)日：2020-05-28
申请号：US16778822
申请日：2020-01-31
Applicant: DSM IP ASSETS B.V.
Abstract: Processes for preparing a polyamide, a polyamide material obtained by such processes, a nylon salt to be used therein, and processes for making the nylon salt are disclosed. The processes for preparing the polyamide include a direct solid state polymerization process. The salt used herein is a granulate material, prepared by a process, comprising spraying an aqueous solution comprising a diamine and a dicarboxylic acid dissolved in an aqueous medium, or an aqueous slurry comprising a diammonium dicarboxylate salt dispersed in an aqueous medium directly obtained from such an aqueous solution, onto or in a fluidized bed of diammonium dicarboxylate salt particles, while evaporating the aqueous medium, thereby forming a granulate salt material.
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公开(公告)号：US20160333150A1
公开(公告)日：2016-11-17
申请号：US15220350
申请日：2016-07-26
Applicant: DSM IP ASSETS B.V.
IPC: C08J3/12 , C08K5/3492 , C08J3/20 , C08K9/08 , C08J3/05
CPC classification number: C08J3/124 , B01J2/16 , B01J2/30 , B29B9/06 , B29K2105/16 , B29K2477/10 , B29K2995/0016 , C07D403/12 , C08J3/03 , C08J3/05 , C08J3/122 , C08J3/203 , C08J2339/06 , C08K5/3492 , C08K5/34922 , C08K9/08 , C08K2201/005
Abstract: Melam granulate materials include (i) melam particles, (ii) 0.5-8 wt. %, relative to the total weight of the melam granulate material, of a polymeric binding agent which bonds the melam particles to each other, and (iii) 0-12 wt. %, relative to the total weight of the melam granulate material, of water, wherein the melam granulate material consists of granules with a median particle size (d50) in the range of 100-1000 μm, and wherein the granulate material has a Carr-P bulk density in the range of 400-1000 kg/m3.
Abstract translation: 蜜胺颗粒材料包括（i）二聚氰胺颗粒，（ii）0.5-8重量％ 相对于二聚氰胺颗粒材料的总重量，将二聚氰胺颗粒彼此粘合的聚合物粘合剂的％，和（iii）0-12wt。 相对于二聚氰胺颗粒材料的总重量的水，其中所述二聚氰胺颗粒材料由中值粒度（d50）在100-1000μm范围内的颗粒组成，并且其中所述颗粒材料具有Carr- P堆密度在400-1000 kg / m3范围内。
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