Curable compositions
US5744529A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1995 |
| Grant date | Apr 28, 1998 |
| Priority date | — |
| Expiry date | Dec 18, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L83/12
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A curable composition comprises a polysiloxane additive having at least one unit R.sub.a SiO.sub.(4-a)/2 and at least one unit R.sub.b R.sup.1 SiO.sub.(3-b)/2 wherein R is a C.sub.1-12 hydrocarbon, R.sup.1 is --(CH.sub.2).sub.n (OR.sup.2).sub.m X where R.sup.2 is C.sub.2-3 alkylene, a is 0, 1, 2 or 3 and b is 0, 1 or 2, and X is OH or --OCOCR.sup.3 .dbd.CH.sub.2 where R.sup.3 is H, methyl or ethyl, n is 2 to 5 and m is 8 to 50, provided where X is OH, n is 3 and m is 18. The compositions are useful with polyacrylates as overprint varnishes with improved stability of friction coefficients. Also disclosed is a method for making the additives.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.