Invention Grant
US5907029A Soluble polyarylene sulfoxides, a process for their preparation and
their use
失效
可溶性聚亚芳基亚砜，其制备方法及其用途
- Patent Title: Soluble polyarylene sulfoxides, a process for their preparation and their use
- Patent Title (中): 可溶性聚亚芳基亚砜，其制备方法及其用途
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Application No.: US931554Application Date: 1997-09-16
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Publication No.: US5907029APublication Date: 1999-05-25
- Inventor: Stefan Disch , Michael Haubs , Axel Schonfeld , Helmut Scheckenbach
- Applicant: Stefan Disch , Michael Haubs , Axel Schonfeld , Helmut Scheckenbach
- Applicant Address: DEX
- Assignee: Hoechst Aktiengesellschaft
- Current Assignee: Hoechst Aktiengesellschaft
- Current Assignee Address: DEX
- Priority: DEX19637845 19960917; DEX19716016 19970417
- Main IPC: C08G75/02
- IPC: C08G75/02 ; C08G75/18 ; C09D181/00 ; D01F6/76 ; C08G75/04
Abstract:
The invention relates to polyarylene sulfoxides which are soluble in polar organic solvents, a process for their preparation and their use. Soluble polyarylene sulfoxides can be prepared by homogeneous partial oxidation of polyarylene sulfides. The homogeneous partial oxidation is achieved by dispersing the polyarylene sulfide in finely divided form in a solvent stable to oxidation, slowly adding a mild oxidizing agent and terminating the oxidation as soon as the polymer chains have reached a uniform degree of oxidation. The partially oxidized polyarylene sulfoxides are suitable for the production of coatings and shaped articles, such as fibers, membranes, films and nonwovens.
Public/Granted literature
- US4713845A Toilet seat disenfecting device Public/Granted day:1987-12-22
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