Initiators for the cationic crosslinking of polymers containing organofunctional groups
US5703137A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 1996 |
| Grant date | Dec 30, 1997 |
| Priority date | — |
| Expiry date | Mar 14, 2016 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H27/001
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to initiators for the polymerization and/or crosslinking, cationically and under photochemical and/or thermal activation and/or activation by a beam of electrons, of monomers and/or polymers containing organofunctional groups. The said initiators are of the type comprising an onium salt of an element from groups 15 to 17 of the Periodic Table (Chem & Eng News, Vol 63, N5, 26, of 4 Feb. 1985) and they are characterized in that they contain at least one polymerization and/or crosslinking accelerator chosen from .alpha.-hydroxylated carboxylic acid esters such as, for example, lactic acid esters. Another subject of the invention is compositions based on at least one cationically crosslinkable polyorganosiloxane and on at least one initiator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.