US Patent 11168172 Polyurethane foam and process for producing same
Patent 11168172 was granted and assigned to Covestro on November, 2021 by the United States Patent and Trademark Office.
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Patent abstract
The invention relates to a process used to produce open-cell and extremely fine-cell PUR/PIR rigid foams, said process using a polyol formulation comprising a specific isocyanate-reactive component, a catalyst component having zerewitinoff-active hydrogens and a cell-opener component.
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Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
111681720
Date of Patent
November 9, 2021
0Patent Application Number
201803050
Date Filed
March 5, 2018
0Official Website
Patent Primary Examiner
Edits on 24 Sep, 2022
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Infobox
Is a
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
111681720
Date of Patent
November 9, 2021
0Patent Application Number
201803050
Date Filed
March 5, 2018
0Official Website
Patent Primary Examiner
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Edits on 11 Nov, 2021
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US Patent 11168172 Polyurethane foam and process for producing same
Infobox
Is a
Patent applicant
Current assignee
Patent jurisdiction
Patent number
11168172
Date of patent
November 9, 2021
Patent application number
20180305
Date Filed
March 5, 2018
Patent primary examiner
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