Process for overmoulding over a plastic insert and automobile part obtained by this process
US10843391B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 2015 |
| Grant date | Nov 24, 2020 |
| Priority date | — |
| Expiry date | May 7, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2677/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process for manufacturing a composite automobile part by overmoulding, over at least one surface of an insert (1) comprising a first plastic material, a layer of a second thermoplastic material, comprises the following successive steps: a) a step of positioning said insert (1) in a mould, and b) a step of moulding said second thermoplastic material over said insert. At least one of said first and second materials comprises an additive, said additive comprising a polymer to which carboxylic anhydride monomers are grafted. Said first and second materials are respectively based on polyamide and based on polypropylene, or vice versa and said second material comprises talc as mineral filler.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.