Control of polymer network structures via nanogels
US10968300B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2017 |
| Grant date | Apr 6, 2021 |
| Priority date | — |
| Expiry date | Nov 9, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F222/1065
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method of increasing a polymerization reaction rate of a base monomer composition that has slow free-radical polymerization kinetics. The method comprises combining an effective amount of a nanogel to the base monomer composition to form a monomer-nanogel mixture having a polymerization reaction rate that is greater than the polymerization reaction rate of the base monomer composition when subjected to an identical free-radical polymerization reaction conducted under identical conditions. The base monomer composition comprises one or more slow-kinetic monomers with slow free radical polymerization kinetics in which <25% of the double bonds are converted within the first 10 mintes of said reaction. The nanogel is soluble in the base monomer composition. The nanogel is derived from a nanogel-forming monomer mixture that comprises: at least one monovinyl monomer; at least one divinyl monomer; a chain transfer agent; and an initiator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.