Modification of (co)polymers employing organic peroxides
US5202386A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 1991 |
| Grant date | Apr 13, 1993 |
| Priority date | — |
| Expiry date | May 22, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F8/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Organic (co)polymers, including saturated (co)polymers, are modified by contacting them with an organic peroxide and decomposing the peroxide. Use is made of an organic peroxide having the general formula R--(O--O--CHR.sup.1 --CR.sup.2 .dbd.CR.sup.3 R.sup.4)N, wherein N is 1, 2 or 3; R.sup.1 is H, C.sub.1 -C.sub.4 alkyl or C.sub.2 -C.sub.4 alkylene; R.sup.2, R.sup.3 and R.sup.4 are, independently, H or C.sub.1 -C.sub.4 alkyl; two of the substituents R.sup.1 -R.sup.4 together may form C.sub.3 -C.sub.12 alkylene; and, when N is 1, R is an optionally hydroxyl substituted C.sub.4 -C.sub.18 T.alkyl, P-menth-8-yl, C.sub.5 -C.sub.18 T.alkenyl, 1-vinylcyclohexyl or a group of the formula: --C(CH.sub.3)2--C.sub.6 HJ(5--M)--R.sup.5 (M), wherein M is 0, 1 or 2 and R.sup.5 is isopropenyl or 2-hydroxyisopropyl; when N is 2, R is a C.sub.8 -C.sub.12 alkylene or alkynylene group having a tertiary structure at both ends, or a group having the formula --(C)CH.sub.3)2)2--C.sub.6 H(4--X)--R.sup.5 (X), wherein X is 0 or 1; and when N is 3, R is 1,2,4- or 1,3,5-triisopropylbenzene-alpha, alpha"-triyl, i.a., 3-allylperoxy-3,3-dimethylpropene according to a preferred embodiment the modification is carrie…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.