Process for substantially eliminating surface melt fracture during extrusion of thermoplastic polymers
US5204032A · kind A · utility
5Cited by
5References
9Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 15, 1989 |
| Grant date | Apr 20, 1993 |
| Priority date | — |
| Expiry date | Jun 15, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L93/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for substantially eliminating surface melt fracture during extrusion of a thermoplastic polymer such as a molten narrow molecular weight distribution, linear, ethylene copolymer, by incorporating into the thermoplastic polymer a wood rosin or wood rosin derivative.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.