Invention Grant
- Patent Title: Pressboard
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Application No.: US15520028Application Date: 2015-10-16
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Publication No.: US10351996B2Publication Date: 2019-07-16
- Inventor: Claire Pitois , Elson Montibon , Fredrik Sahlen , Lars Schimdt , Orlando Girlanda , Torbjorn Brattberg , Lars Wagberg
- Applicant: ABB Schweiz AG
- Applicant Address: CH Baden
- Assignee: ABB Schweiz AG
- Current Assignee: ABB Schweiz AG
- Current Assignee Address: CH Baden
- Agency: Whitmyer IP Group LLC
- Priority: EP14189513 20141020
- International Application: PCT/EP2015/074041 WO 20151016
- International Announcement: WO2016/062638 WO 20160428
- Main IPC: H01F27/32
- IPC: H01F27/32 ; D21H17/36 ; D21H17/37 ; D21J1/20 ; H01B3/18 ; H01B3/44 ; H01B3/52 ; D21H17/56 ; D21H17/00 ; H01F27/00
Abstract:
A cellulose based pressboard for insulation in an electrical power transformer, the pressboard includes polyvinylamine (PVAm), and polyacrylamide (PAM), in a combined amount of between 0.01% and 20% by weight of the pressboard.
Public/Granted literature
- US20170321378A1 Pressboard Public/Granted day:2017-11-09
Information query
