Article with visual effects
US11932751B2 · kind B2 · utility
0Cited by
28References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2021 |
| Grant date | Mar 19, 2024 |
| Priority date | — |
| Expiry date | Mar 1, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7158
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A blow molded article, a method of making a blow molded article and a method of making a preform each having at least one layer comprising a thermoplastic resin and between 0.1% and 20% of an additive having a viscosity of greater than 1,000,000 cst. There is a refractive index difference of at least 0.04 between the additive and the thermoplastic resin. The high viscosity of the additive ensures even distribution of the additive within the thermoplastic resin in discrete domains, while additionally providing for a complex end look balancing opacity, gloss and depth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.