Maleic acid copolymers with fluorinated thioether end-cap
US5712348A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 13, 1996 |
| Grant date | Jan 27, 1998 |
| Priority date | — |
| Expiry date | Mar 13, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2964
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A copolymer having units of Formula II: ##STR1## wherein M is H, alkali metal, ammonium cation, or a mixture thereof; PA1 N is OM or a mixture of OM, OR, and NR.sub.1 R.sub.2 in a molar ratio of (OM):(OR):(NR.sub.1 R.sub.2) of 1-(e+f)!:e:f, wherein e and f are each independently 0 to 0.5, provided that (e+f) is less than 0.8; PA1 R, R.sub.1, and R.sub.2 are each independently H or a branched or straight chain C.sub.1-20 alkyl; PA1 Y is a C.sub.2-10 alkyl, C.sub.6-12 aryl, or C.sub.4-12 alkoxy; PA1 X is a fluorinated thiol radical; PA1 Z is H; and PA1 v and w are each a positive number such that the molar ratio of v to w is from about 0.4:1 to about 1.3:1 is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.