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公开(公告)号：US11326104B2
公开(公告)日：2022-05-10
申请号：US16929273
申请日：2020-07-15
Applicant: CHESTNUT SPRINGS LLC
Inventor： Randall Cher Liang Cha , Sufan Siauw , Ralph T. Webdale
Abstract: A process for preparing a flame retardant composition, the process comprising: adding to a container at least one flame retardant salt, a nitrogen-containing compound, and optionally water; and mixing the contents of the container to give a dispersed mixture or dissolved solution comprising the flame retardant composition; wherein the at least one flame retardant salt comprises an ammonium salt of phosphoric acid; wherein the ammonium salt of phosphoric acid comprises water soluble ammonium polyphosphate (APP); wherein the water soluble ammonium polyphosphate has a total nitrogen as N from about 5 to about 15 weight percent, and a total phosphorus as P2O5 from about 30 to about 40 weight percent, based on the total weight of the ammonium polyphosphate (APP).
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公开(公告)号：US10752840B2
公开(公告)日：2020-08-25
申请号：US15820720
申请日：2017-11-22
Applicant: Chestnut Springs LLC
Inventor： Randall Cher Liang Cha , Sufan Siauw , Ralph T. Webdale
Abstract: This disclosure provides a composition comprising one or more substrate materials (e.g., polymers, rubbers, paper pulps, textiles, or polymer foams) and a flame retardant composition. The flame retardant composition includes at least one flame retardant salt (e.g., an ammonium salt of phosphoric acid such as water soluble ammonium polyphosphate), a nitrogen-containing compound (e.g., urea), and optionally water. This disclosure also provides a process for preparing the flame retardant composition, a process for imparting flame retardancy to a substrate material, and an intumescent process for forming an insulating protective layer on a substrate. This disclosure further provides fire retardant articles and processes for preparing fire retardant articles.
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公开(公告)号：US11608472B2
公开(公告)日：2023-03-21
申请号：US17711652
申请日：2022-04-01
Applicant: CHESTNUT SPRINGS LLC
Inventor： Randall Cher Liang Cha , Sufan Siauw , Ralph T. Webdale
Abstract: A method for imparting flame retardancy to a substrate material. The method comprises adding to a substrate material a flame retardant composition. The flame retardant composition comprises at least one flame retardant salt, a nitrogen-containing compound, and optionally water. The at least one flame retardant salt comprises an ammonium salt of phosphoric acid. The ammonium salt of phosphoric acid comprises water soluble ammonium polyphosphate (APP). The water soluble ammonium polyphosphate has a total nitrogen as N from about 5 to about 15 weight percent, and a total phosphorus as P2O5 from about 30 to about 40 weight percent, based on the total weight of the ammonium polyphosphate (APP).
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公开(公告)号：US20180142156A1
公开(公告)日：2018-05-24
申请号：US15820720
申请日：2017-11-22
Applicant: Chestnut Springs LLC
Inventor： Randall Cher Liang Cha , Sufan Siauw , Ralph T. Webdale
CPC classification number: C09K21/04 , C08K3/32 , C08K2003/322 , C08K2003/323 , C08L1/02 , C08L3/02 , C09K21/02 , C09K21/10 , C09K21/14
Abstract: This disclosure provides a composition comprising one or more substrate materials (e.g., polymers, rubbers, paper pulps, textiles, or polymer foams) and a flame retardant composition. The flame retardant composition includes at least one flame retardant salt (e.g., an ammonium salt of phosphoric acid such as water soluble ammonium polyphosphate), a nitrogen-containing compound (e.g., urea), and optionally water. This disclosure also provides a process for preparing the flame retardant composition, a process for imparting flame retardancy to a substrate material, and an intumescent process for forming an insulating protective layer on a substrate. This disclosure further provides fire retardant articles and processes for preparing fire retardant articles.
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