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公开(公告)号：US20180251915A1
公开(公告)日：2018-09-06
申请号：US15970285
申请日：2018-05-03
Applicant: PBI Performance Products, Inc.
Inventor： Brian P. Shiels , Gregory S. Copeland , Feng Qin
Abstract: A method of making a phosphonated polybenzimidazole fiber comprises the steps of: spinning an untreated PBI resin into a PBI fiber; treating the PBI fiber with phosphoric acid, and thereby obtaining a PBI fiber with 1-25 wt. % phosphoric acid APU. A fiber is made with a polybenzimidazole (PBI) polymer with a phosphoric acid pick-up (APU) in the range of 1-25% (PBI-p fiber). The PBI-p fiber may have a LOI≥50% and/or an initial thermal decomposition temperature in air of ≥555° C.
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Patent Agency Ranking
公开(公告)号：US11959196B2
公开(公告)日：2024-04-16
申请号：US15193206
申请日：2016-06-27
Applicant: PBI Performance Products, Inc.
Inventor： Brian P. Shiels , Gregory S. Copeland , Feng Qin
Abstract: A fiber is made with a polybenzimidazole (PBI) polymer with a phosphoric acid pick-up (APU) in the range of 1-25% (PBI-p fiber). The PBI-p fiber may have a LOI ≥50% and/or an initial thermal decomposition temperature in air of ≥555° C. A method of making a phosphonated polybenzimidazole fiber comprises the steps of: spinning an untreated PBI resin into a PBI fiber; treating the PBI fiber with phosphoric acid, and thereby obtaining a PBI fiber with 1-25 wt. % phosphoric acid APU.
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公开(公告)号：US12065763B2
公开(公告)日：2024-08-20
申请号：US15970285
申请日：2018-05-03
Applicant: PBI Performance Products, Inc.
Inventor： Brian P. Shiels , Gregory S. Copeland , Feng Qin
Abstract: A method of making a phosphonated polybenzimidazole fiber comprises the steps of: spinning an untreated PBI resin into a PBI fiber; treating the PBI fiber with phosphoric acid, and thereby obtaining a PBI fiber with 1-25 wt. % phosphoric acid APU. A fiber is made with a polybenzimidazole (PBI) polymer with a phosphoric acid pick-up (APU) in the range of 1-25% (PBI-p fiber). The PBI-p fiber may have a LOI≥50% and/or an initial thermal decomposition temperature in air of ≥555° C.
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公开(公告)号：US20170009383A1
公开(公告)日：2017-01-12
申请号：US15193206
申请日：2016-06-27
Applicant: PBI Performance Products, Inc.
Inventor： Brian P. Shiels , Gregory S. Copeland , Feng Qin
Abstract: A fiber is made with a polybenzimidazole (PBI) polymer with a phosphoric acid pick-up (APU) in the range of 1-25% (PBI-p fiber). The PBI-p fiber may have a LOI≧50% and/or an initial thermal decomposition temperature in air of 555° C. A method of making a phosphonated polybenzimidazole fiber comprises the steps of: spinning an untreated PBI resin into a PBI fiber; treating the PBI fiber with phosphoric acid, and thereby obtaining a PBI fiber with 1-25 wt. % phosphoric acid APU.
Abstract translation: 纤维由具有1-25％（PBI-p纤维）范围内的磷酸吸收（APU）的聚苯并咪唑（PBI）聚合物制成。 PBI-p纤维可以具有LOI≥50％和/或空气中的初始热分解温度为555℃。制备膦酰化聚苯并咪唑纤维的方法包括以下步骤：将未处理的PBI树脂纺丝成PBI纤维; 用磷酸处理PBI纤维，从而获得1-25重量％的PBI纤维。 ％磷酸APU。
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公开(公告)号：US11913140B2
公开(公告)日：2024-02-27
申请号：US15970342
申请日：2018-05-03
Applicant: PBI Performance Products, Inc.
Inventor： Brian P. Shiels , Gregory S. Copeland , Feng Qin
Abstract: A fiber is made with a polybenzimidazole (PBI) polymer with a phosphoric acid pick-up (APU) in the range of 1-25% (PBI-p fiber). The PBI-p fiber may have a LOI≥50% and/or an initial thermal decomposition temperature in air of ≥555° C. A method of making a phosphonated polybenzimidazole fiber comprises the steps of: spinning an untreated PBI resin into a PBI fiber; treating the PBI fiber with phosphoric acid, and thereby obtaining a PBI fiber with 1-25 wt. % phosphoric acid APU.
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公开(公告)号：US20180251916A1
公开(公告)日：2018-09-06
申请号：US15970342
申请日：2018-05-03
Applicant: PBI Performance Products, Inc.
Inventor： Brian P. Shiels , Gregory S. Copeland , Feng Qin
Abstract: A fiber is made with a polybenzimidazole (PBI) polymer with a phosphoric acid pick-up (APU) in the range of 1-25% (PBI-p fiber). The PBI-p fiber may have a LOI≥50% and/or an initial thermal decomposition temperature in air of ≥555° C. A method of making a phosphonated polybenzimidazole fiber comprises the steps of: spinning an untreated PBI resin into a PBI fiber; treating the PBI fiber with phosphoric acid, and thereby obtaining a PBI fiber with 1-25 wt. % phosphoric acid APU.
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