Polymers containing thiuram disulfide groups and their preparation
US5658986A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 18, 1995 |
| Grant date | Aug 19, 1997 |
| Priority date | — |
| Expiry date | Dec 18, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G75/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
These copolymers are denoted by the formulae: ##STR1## P.sub.1, P.sub.2 =vinyl or dienic (p with a value of 1), or polyoxyalkylene, polyester or polyamide (p with a value of 0) polymer block; PA1 A=(1) ##STR2## with R.sub.1 denoting, among others, alkyl; (2) ##STR3## where E, G, J have various meanings; (3) ##STR4## M, joined to D, having the value ##STR5## h, i, Q and R having various meanings; D=a single bond or (cyclo)alkylene or arylene group; PA1 n=1 to 20. These polymers are iniferters in radical polymerization of vinyl monomers. The macroiniferters (I) and the polyiniferters (II) result, respectively, in triblock copolymers PA--PB--PA and diblock copolymers .paren open-st.PA--PB.paren close-st..sub.z a, z having a value from 2 to 25.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.