Degradation of polypropylene with hydroxylamine ester...

Details Degradation of polypropylene with hydroxylamine ester... Degradation of polypropylene with hydroxylamine ester...

2011-06-07

2011-06-07

Sanders, Kriellion A (Department: 1761)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S102000, C524S157000, C524S392000

Reexamination Certificate

active

07956109

ABSTRACT:
The invention relates to novel composition comprising hydroxylamine esters and thio compounds, which are suitable for lowering the molecular weight of polypropylene, propylene copolymers or polypropylene blends and result in an excellent degradation performance at temperatures below 220° C.

REFERENCES:
patent: 3361713 (1968-01-01), Meyer et al.
patent: 4101720 (1978-07-01), Taylor et al.
patent: 2002/0161075 (2002-10-01), Sassi
patent: 01/90113 (2001-11-01), None
J. Z. Stefańska et al, Pharmazie, vol. 53, (1998), pp. 190-192.

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