Antistatic surface modification of PVC
US5169688A · kind A · utility
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37References
35Claims
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Key dates
| Filing date | Feb 27, 1991 |
| Grant date | Dec 8, 1992 |
| Priority date | — |
| Expiry date | Feb 27, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2327/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
At least one antistatic agent is incorporated into a thermoplastic polymer by contacting a polyvinyl chloride polymer with a solution comprising a solvent capable of swelling the PVC surface and at least one antistatic agent selected from the group consisting of 1-dodecylpyridinium chloride monohydrate and (R.sup.1).sub.n (R.sup.2).sub.m ammonium halide, wherein n and m are integers of from 0-4 and n+m=4, and wherein R.sup.1 and R.sup.2 can be different or the same and are alkyl groups of from 1 to 20 carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.