Method of producing reformed crosslinked polyethylene articles
US5756023A · kind A · utility
33Cited by
71References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 30, 1996 |
| Grant date | May 26, 1998 |
| Priority date | — |
| Expiry date | May 30, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2023/22
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of producing reformed crosslinked polymer articles provides reformed crosslinked articles free of visible and objectionable folds, seams, and interfaces on reformed surfaces thereof. In a preferred embodiment, a method includes the steps of extruding a silane-grafted polyethylene tube, heating an end of the tube, reforming the end of the tube to produce a radially enlarged sealing surface thereon, cooling the reformed tube, and curing the reformed tube to produce an increase in the degree of crosslinking of the polyethylene material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.