Thermoplastic polymer compositions containing melt-rheology modifiers
US5102952A · kind A · utility
12Cited by
12References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 4, 1989 |
| Grant date | Apr 7, 1992 |
| Priority date | — |
| Expiry date | Aug 4, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31938
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Vinyl aromatic polymers having a minimum molecular weight of about 500,000, and preferably of about 1,500,000, are blended at levels of from about 1 to about 25% with thermoplastic resins to improve the melt rheology of the thermoplastic resins and facilitate blow molding, thermoforming, extrusion and similar processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.