Polyamide foam preparation
US12338335B2 · kind B2 · utility
0Cited by
11References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2018 |
| Grant date | Jun 24, 2025 |
| Priority date | — |
| Expiry date | Jul 2, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2203/14
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed herein is a foamed composition comprising 55 to 98 wt. % of polyamide, and 2 to 45 wt. % of ionomer comprising a zinc neutralized ethylene acid copolymer. The zinc neutralized ethylene acid copolymer is the polymerized reaction product of ethylene monomer, monocarboxylic acid monomer, and unsaturated dicarboxylic acid monomer, and 30 to 70 mole percent of total acid units of the ionomer are neutralized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.