Primary coating compositions with reinforcing polymer
US9322991B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2015 |
| Grant date | Apr 26, 2016 |
| Priority date | — |
| Expiry date | Jan 23, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/045
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Coating compositions that include acrylic polymers as reinforcing agents. The coating compositions are radiation-curable and include a multifunctional acrylate component, an acrylic monomer diluent, an acrylic polymer, and a photoinitiator. The acrylic polymer is not radiation-curable and lacks hydrogen-donor groups, urea groups, and urethane groups. The acrylic polymer is non-reactive and does not chemically bond to the crosslinked network formed by curing the acrylate components. Instead, the acrylic polymer reinforces the cured network through physical interactions. Representative acrylic polymers include (meth)acrylates that lack substituents with hydrogen-donor, urea, and urethane groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.