Silicones which contain lateral peripheral vinyl ether groups having aliphatic or aromatic urethanes
US5208312A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 1992 |
| Grant date | May 4, 1993 |
| Priority date | — |
| Expiry date | Feb 21, 2012 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H27/001
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to copolymers of siloxanes with the formula: EQU (R.sub.a).sub.3 SiO(V).sub.v --(W).sub.w --(Y).sub.y --(Z).sub.z --Si(R.sub.a).sub.3 where PA0 V=SiR.sub.a R.sub.b O--; PA0 W=SiR'.sub.a (R.sub.c --R.sub.d --OCH.dbd.CH.sub.2)O--; PA0 Y=SiR.sub.a R.sub.g O--; PA0 Z=R.sub.a R.sub.g SiC.sub.n H.sub.2n R'.sub.f C.sub.n H.sub.2n SiR.sub.a R.sub.g O-- where n=2, 3 or 4; PA0 v, y, z=0 or an integer, w.noteq.0 with v+y+z.noteq.0; PA0 R.sub.a =alkyl or phenyl; R.sub.b =R.sub.a ; R'.sub.a =R.sub.a or alkoxy; R.sub.c =alkylene, for example: PA0 R.sub.d =--OCONHR.sub.e NHCO--, --NH--COOC.sub.2 H.sub.4 --, or --NHCOOC.sub.3 H.sub.6 --; PA0 R.sub.e =divalent hydrocarbon radicals; R.sub.g, R.sub.f and R'.sub.f are fluorinated or perfluorinated radicals. The above copolymers are used for the preparation of antiadhesive coatings, for example on paper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.