Use of low-viscosity aqueous hot-cure flexible polyurethane...

Details Use of low-viscosity aqueous hot-cure flexible polyurethane... Use of low-viscosity aqueous hot-cure flexible polyurethane...

2007-08-16

2011-10-11

Cooney, John (Department: 1765)

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

Synthetic resins

Cellular products or processes of preparing a cellular...

C252S182240, C252S182290, C252S182320, C521S114000, C521S170000

Reexamination Certificate

active

08034848

ABSTRACT:
The subject matter of the present invention relates to a low-viscosity aqueous hot-cure flexible polyurethane foam stabilizer solution which can be used in the production of hot-cure flexible polyurethane foams, wherein the low-viscosity aqueous hot-cure flexible polyurethane foam stabilizer solution comprises the following components: ≧40% to ≦70% by weight of polyethersiloxane, ≧0.5% to ≦20% by weight of organic surfactant, ≧10% by weight of water, ≧0% by weight of organic solvent additions, in which the polyethersiloxane has the following formula (I) —R1—Si(CH3)2O—[Si(CH3)(OSi(CH3)2R0)O—]u—[Si(OSi(CH3)2R0)2O—]v—[Si(CH3)2O—]w—[SiCH3R2O—]x—[SiCH3R3O—]y—[SiCH3R4O]z—[SiR3R4O]t—Si(CH3)2—R5(I).

REFERENCES:
patent: 4751251 (1988-06-01), Thornsberry
patent: 4795763 (1989-01-01), Gluck et al.
patent: 5691392 (1997-11-01), Okoroafor et al.

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