Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1975-03-12
1977-04-19
Michl, Paul R.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260859PV, C08L 7508
Patent
active
040188515
ABSTRACT:
A polymerizable composition, suitable for use as an adhesive, sealant or coating, comprising a urethane-acrylate-capped prepolymer based on a graft polyol derived from the reaction between the polyol and a vinyl monomer or polymer. In a preferred embodiment, the graft polyol is present as the disperse phase of a polymer/polyol dispersion. The composition provides improved general properties, particularly cure-through-gap and impact properties. The composition typically has a relatively low viscosity, making it especially useful for "retaining" purposes. A process for preparing the composition and a process for using it are also disclosed.
REFERENCES:
patent: 3304273 (1967-02-01), Stamberger
patent: 3509234 (1970-04-01), Burlant
patent: 3850770 (1974-11-01), Juna
patent: 3882007 (1975-05-01), Watanabe
patent: 3891523 (1975-06-01), Hisamatsu
patent: 3933938 (1976-01-01), Rhodes
Frish, "Advances in Urethane Science and Technology", vol. 2, pp. 8, 9, 10, & 11, 1973.
Kuryta, "Polymer/Polyols, a New class of Polyurethane Intermediates", J. Cellular Plastics, Mar. 1966, pp.84-96.
Loctite Corporation
Mauro Jean B.
Michl Paul R.
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