Stabilizers, in particular for thermoplastic polyurethanes

Details Stabilizers, in particular for thermoplastic polyurethanes Stabilizers, in particular for thermoplastic polyurethanes

2006-02-07

2006-02-07

Yoon, Tae H. (Department: 1714)

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

C524S245000, C524S289000, C524S291000, C524S333000, C524S343000, C252S401000, C252S402000, C252S404000, C560S075000

Reexamination Certificate

active

06995230

ABSTRACT:
The invention relates to stabilizers containing at least two phenolic groups bonded to one another via a connecting radical (II) which is a polyol with a number-average molecular weight of from 75×F g/mol to 250×F g/mol, preferably from 100×F g/mol to 200×F g/mol, in particular from 100×F g/mol to 150×F g/mol, where the term F is the number of phenolic groups in the molecule.

REFERENCES:
patent: 3944594 (1976-03-01), Kleiner et al.
patent: 4032562 (1977-06-01), Dexter et al.
patent: 4228297 (1980-10-01), Haeberli et al.
patent: 6800228 (2004-10-01), Semen
patent: A-2364126 (1974-07-01), None
patent: A-332761 (1989-09-01), None
patent: WO-A 94/22945 (1994-10-01), None
Patent Abstract of JP 08092165, Sep. 1996.

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