FINE PARTICLE, HIGH CONCENTRATION, POLYISOCYANATE POLYADDITION/POLYURETHANE-UREA POLYOLS

Title:

FINE PARTICLE, HIGH CONCENTRATION, POLYISOCYANATE POLYADDITION/POLYURETHANE-UREA POLYOLS

Document Type and Number:

WIPO Patent Application WO/2012/154831

Kind Code:

A3

Abstract:

Embodiments of the invention include a method of producing polymer polyol dispersions is. The method includes providing at least one reaction system, and the reaction system includes: a) at least one polyol, b) at least one seed population, c) at least one catalyst, d) at least one co-reactant having an equivalent weight of up to 400 and at least one active hydrogen attached to a nitrogen or oxygen atom, and e) at least one polyisocyanate. The at least one seed population includes less than about 5% by weight of the total weight of the at least one reaction system and includes seed particles having diameters of less than 5 µm. The at least one reaction mixture reacts to form at least one of a polyurea and polyurethane-urea particle population in the at least one polyol without the addition of any catalysts comprising tin. The polymer polyol dispersion has a solids content of at least 15% of the weight of the polymer polyol dispersion.

Inventors:

COOKSON PAUL (CH)
BORELLA RICCO B (CH)
HOEHNENER DANIEL (CH)
CASATI FRANCOIS M (CH)

Application Number:

PCT/US2012/037093

Publication Date:

May 16, 2013

Filing Date:

May 09, 2012

Export Citation:

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Assignee:

DOW GLOBAL TECHNOLOGIES LLC (US)
COOKSON PAUL (CH)
BORELLA RICCO B (CH)
HOEHNENER DANIEL (CH)
CASATI FRANCOIS M (CH)

International Classes:

C08G18/63; C08G18/40

Domestic Patent References:

WO2004099281A1	2004-11-18
WO2010151431A1	2010-12-29

Foreign References:

EP1419190B1	2011-04-06
US20090281206A1	2009-11-12