Thermoplastic block copolymers consisting of polyalkyl(meth)acrylate and polyamide segments and the use thereof
US7282551B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2002 |
| Grant date | Oct 16, 2007 |
| Priority date | — |
| Expiry date | Aug 31, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B27/08
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Polyamide polyalkyl(meth)acrylate block copolymers which are built from polyamide generating monomers in addition to 15-70 weight percent polyalkyl(meth)acrylates as well as products produced from same. The block copolymers are produced by producing polyamide or copolyamide blocks with an average molar mass in the range between 500 and 5,000 g/Mol with an amino end group in a first polymerization or polycondensation step and degassing in order to reduce the water content; adding, in a second step, α,ω-functionalized polyalkyl(meth)acrylate diols; and fully condensing the reaction mixture into high-molecular block copolymer (A) at a reduce pressure in a further polycondensation step; discharging it, or further processing it into molding bodies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.