Hydroxyalkenylsiloxane rigid poly urethane foam stabilizers

Details Hydroxyalkenylsiloxane rigid poly urethane foam stabilizers Hydroxyalkenylsiloxane rigid poly urethane foam stabilizers

1974-07-17

1976-01-20

Cockeram, H. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

252352, C08G 1814

Patent

active

039336956

ABSTRACT:
This application relates to certain novel hydroxyalkenylsiloxanes that are particularly useful as foam stabilizers for rigid polyurethane foams. The novel hydroxyalkenylsiloxanes have critical siloxane molecular weights and are produced by an addition reaction involving hydrosiloxanes and acetylenically unsaturated alcohols that contain a terminal acetylenic bond which does not shift significantly during the reaction.

REFERENCES:
patent: 2823218 (1958-02-01), Speier et al.
patent: 2837550 (1958-06-01), Prober
patent: 2920093 (1960-01-01), Bailey
patent: 2970150 (1961-01-01), Bailey
patent: 3317460 (1967-05-01), Clark et al.

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