Reduced reactivity polyols as foam controllers in producing poly

Details Reduced reactivity polyols as foam controllers in producing poly Reduced reactivity polyols as foam controllers in producing poly

1986-04-09

1987-10-20

Kight, John

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

Synthetic resins

Cellular products or processes of preparing a cellular...

525187, 525404, 525529, 525531, 524377, 524762, 523400, C08L 7500, C08L 7102, C08L 6300, C08L 506

Patent

active

047014741

ABSTRACT:
Reduced reactivity polyols are provided as foam controllers in the production of polyurethane foams. When the foam controllers are incorporated into polyurethane foam formulations, foam rise time is increased without adverse effects on foam characteristics, such as load bearing capability, resiliency and porosity. The foam controllers are acid grafted polyethers, such as acrylic acid grafted poly(alkylene oxides), and can be employed in surprisingly low concentrations to control reactivity.

REFERENCES:
patent: 3385806 (1968-05-01), Critchfield et al.
patent: 3418354 (1968-12-01), Wheeler
patent: 3953393 (1976-04-01), Ramlow et al.
patent: 4146488 (1979-03-01), Martin
patent: 4524157 (1985-06-01), Stamberger
patent: 4528334 (1985-07-01), Knopf et al.
patent: 4574137 (1986-03-01), Serratelli et al.

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