Dispersion of hybrid polyurethane with olefin-acrylic copolymerization
US8575256B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2009 |
| Grant date | Nov 5, 2013 |
| Priority date | — |
| Expiry date | Mar 16, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D175/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A product and processes comprising urethane polymer and at least one copolymer from a hydrophobic ethylenically unsaturated C4-C30 olefins copolymerized with polar monomers such as acrylates. One process optionally utilizes an acid source to modify/catalyze the reactivity of the polar monomer and/or radically activated repeat unit from the polar monomer to promote incorporation of the ethylenically unsaturated olefin. Other processes vary depending on which polymer if formed and/or dispersed first. The hybrid copolymer shows excellent adhesion to a variety of polymeric and/or polar substrates such as polyolefins, acrylate coatings, wood, etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.