Reduced viscosity polyester composition for toner powders
US5156937A · kind A · utility
26Cited by
9References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 10, 1991 |
| Grant date | Oct 20, 1992 |
| Priority date | — |
| Expiry date | Jun 10, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/105
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a polymer composition comprising a high molecular weight polyester having a glass transition temperature of 50.degree. to 100.degree. C. and a weight average molecular weight of 30,000 to 100,000 and a low molecular weight polyester in linear, amorphous form defined by the formula: ##STR1## said low molecular weight polyester having a glass transition temperature of 55.degree.-65.degree. C., wherein: PA0 R is a hydrocarbon radical having 2 to 5 carbons and PA0 m is a number which gives the low molecular weight polyester a number average molecular weight of 500 to 2000.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.