Polymer/polyol composition, processes for making the same and po

Details Polymer/polyol composition, processes for making the same and po Polymer/polyol composition, processes for making the same and po

1991-05-31

1993-12-21

Welsh, Maurice J.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524714, 524715, 524762, 524773, 524850, 524851, 524853, 524854, 524855, 524858, 524881, 521137, 525123, 525131, 525404, 525440, 525445, C08K 505, C08K 506, C08L 7504

Patent

active

052722040

ABSTRACT:
Polymer/polyol compositions, obtained by polymerizing an ethylenically unsaturated monomer in situ in a polyol in the presence of inner-olefin containing at least 5 carbon atoms, are of lower viscosity and can provide polyurethanes having improved properties. Polymer/polyol compositions, obtained by polymerizing an ethylenically unsaturated monomer, in situ in a polyol in the presence of an azo compound and a peroxide having a 10 hours half-life period temperature which is lower by at least 10.degree. C. than that of the azo compound, have improved stability even at higher styrene content.

REFERENCES:
patent: 4172825 (1979-10-01), Shook et al.
patent: 4242249 (1980-12-01), Van Cleve et al.
patent: 4463107 (1984-07-01), Simroth et al.
patent: 4931483 (1990-06-01), Matsuoka et al.

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