High melt strength composition comprising modified polycaprolactam and impact modifier
US4376188A · kind A · utility
2Cited by
2References
12Claims
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Assignee
Inventor
Key dates
| Filing date | Jun 12, 1981 |
| Grant date | Mar 8, 1983 |
| Priority date | — |
| Expiry date | Jun 12, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L77/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Compositions are described, which are blow-moldable into shaped articles, comprising a reaction product between polycaprolactam, aminoalkyltrialkoxysilane and a catalytic amount of water. The compositions have a melt index of about 2.25 g/10 min. or below and are substantially free of trialkoxysilane groups. Preferred compositions also contain ethylene/vinyl acetate copolymer as an impact modifier to increase the impact strength of blow-molded articles made therefrom, such as bottles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.