Molding method
US4369152A · kind A · utility
3Cited by
1References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 1979 |
| Grant date | Jan 18, 1983 |
| Priority date | — |
| Expiry date | Jul 24, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C45/1671
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of molding a plastic component having first and second portions interconnected by a transition zone with a barrier material encapsulated in the plastic material of both of the portions of the component. The permeable barrier material is placed in a mold cavity to divide the cavity into first and second portions. The first portion of the cavity is filled with plastic material while the second portion of the cavity is filled with plastic material to permeate the barrier material with plastic from both portions whereby the barrier material defines the transition zone and is encapsulated in the plastic component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.