Polymer and compositions
US8106195B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2006 |
| Grant date | Jan 31, 2012 |
| Priority date | — |
| Expiry date | Apr 18, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/027
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
There are disclosed urethane acrylates of Formula 1:where R1a, R1b and R1c each independently represent C2-15hydrocarbylene, preferably linear C3-12alkylene (such as, C4-8alkylene; e.g. hexylene); a isophorone unit and/or a tolyl unit. R2a, R2b and R2c each independently represent: a divalent moiety of(Formula 2) where X and Y independently represent C2-10hydrocarbylene, preferably C2-8alkylene; and k is from 0 to 30; l is from 0 to 30; and ‘k+l’ is from 1 to 30; and/or a divalent moiety of Formula 3where V and W independently represent C2-10hydrocarbylene, preferably C2-8alkylene; and i is from 0 to 30; j is from 0 to 30; and ‘i+j’ is from 1 to 30; p is from 1 to 10; and r is from 1 to 10; and R3a R3b and R3c each independently represent H or methyl (i.e. R3 forms respectively part of an acrylate or a methacrylate group); with the provisos that at least one of R2a, R2b and R2c is a moiety of Formula 2; at least one of R2a, R2b and R2c is a moiety of Formula 3; and when R2 represents a divalent moiety of Formula 3, the sub moietywithin Formula 3, is attached directly to the amide group in Formula 1. The UAs of Formula 1 are of non crystalline and of low viscosity and are suitable f…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.