Adhesive compositions with zwitterionic tackifiers and plasticizers
US6106940A · kind A · utility
3Cited by
31References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 17, 1998 |
| Grant date | Aug 22, 2000 |
| Priority date | — |
| Expiry date | Mar 17, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2891
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to adhesive compositions, preferably those for pressure-sensitive adhesive tapes, comprising an adhesive polymer and, as tackifier or plasticizer, a zwitterionic compound. The zwitterionic compounds include those of formula I ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are each alkyl, hydroxyalkyl, aminoalkyl or aryl which may be interrupted in the alkyl chain by one or more oxygen atoms, R.sup.4 is H or OH, PA1 Z.sup..theta. is CO.sub.2.sup..theta. or SO.sub.3.sup..theta., PA1 x and y are each 0, 1 or 2 provided that the sum of x and y is less than or equal to 4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.