Process for preparing chain extended thermoplastic guanidinium polymers
US7172274B2 · kind B2 · utility
0Cited by
6References
14Claims
0Family size
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Key dates
| Filing date | Jan 6, 2003 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | Jul 20, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/30
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process for forming a chain extended thermoplastic polymer which includes reacting: (i) a prepolymer having one or more guanidinium or biguanidinium units and having at least one reactive end group; and (ii) a chain extender having at least two groups able to react with reactive end group(s) in (i). The polymer used as fixing agent to reduce highlighter smear of prints prepared by ink jet printing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.