公开(公告)号：US10174781B2

公开(公告)日：2019-01-08

申请号：US14783916

申请日：2014-04-15

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jonathan D. Zook ,  Larry S. Hebert ,  Michael D. Swan ,  Sheng Ye ,  Susan E. DeMoss ,  Robin E. Wright

IPC: F16B37/14 ,  B64D45/02

Abstract: The present disclosure provides methods and articles useful in sealing fasteners, including seal caps and methods of their use, and in particular light weight seal caps having higher dielectric breakdown strength, lower weight, and/or lower wall thick-ness. In some embodiments, the seal caps according to the present invention are made of a material having a dielectric breakdown strength of greater than 1.0 kV/mm, in some embodiments greater than 15.0 kV/mm, and in some embodiments greater than 50.0 kV/mm. In some embodiments, the seal caps according to the present invention are thin-walled, having an average wall thickness of less than 1.5 mm and in some embodiments less than less than 0.5 mm In some embodiments, the seal cap comprises a polyurethane polymer, a polythioether polymer, a polysulfide polymer, a fluorinated thermoplastic polymer, a THV polymer, a fluorinated thermo-set polymer, an engineering thermoplastic, and/or a PEEK polymer.

公开(公告)号：US20170361549A1

公开(公告)日：2017-12-21

申请号：US15535145

申请日：2015-12-22

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Michael D. Swan ,  Larry S. Hebert ,  David A. Ylitalo

IPC: B29C73/02 ,  B65D41/02 ,  B29C35/08 ,  B29C67/24 ,  B29C45/76 ,  F16B33/00 ,  B29C45/00

Abstract: Methods of using and repairing seal caps as well as constructions comprising seal caps, including in some embodiments seal caps which may be useful in sealing fasteners that protrude into fuel storage cells in aircraft. In some embodiments, methods include the use of optically translucent seal cap and application of a second quantity of sealant to fill voids observed within the interior of the seal cap after cure of a first quantity of sealant.