Siloxane-containing polymers
US4499149A · kind A · utility
93Cited by
12References
34Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 15, 1983 |
| Grant date | Feb 12, 1985 |
| Priority date | — |
| Expiry date | Feb 15, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31663
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The properties of polymeric compositions can be improved by the presence of a polysiloxane unit of formula ##STR1## where Q is a substituted or unsubstituted aromatic group, ##STR2## D is unsubstituted or substituted hydrocarbylene R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 each, independently, is unsubstituted or substituted hydrocarbyl. PA0 x, y and z each independently has a value from 0 to 100. Polyimides containing these units display improved solubility and adhesion; they are useful, among other things, as protective coatings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.