Bonding a glass-resin composite monofilament to a thermoplastic matrix
US12157695B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2019 |
| Grant date | Dec 3, 2024 |
| Priority date | — |
| Expiry date | Apr 6, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J179/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Use of a benzoxazine resin (12) for the bonding of a monofilament (10) made of glass-resin composite including glass filaments (101) embedded in a thermosetting polyester resin (102), to a thermoplastic material (14), notably polyester; process for adhering such a monofilament to the thermoplastic material (14), including at least the following steps: —impregnating the monofilament (10) with a benzoxazine resin (12) in the liquid state; —after impregnation, heat-treating the monofilament (10) thus impregnated, so as to at least partly polymerize the benzoxazine resin (12); —depositing, onto the monofilament (10) thus adhesively coated, the thermoplastic material (14) in the molten state; —after cooling, optionally heat-treating the monofilament thus coated (R-1, R-2) to totally polymerize the benzoxazine resin (12) on contact with the thermoplastic material (14).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.