Preparation of isocyanate-functional polymers containing a termi

Details Preparation of isocyanate-functional polymers containing a termi Preparation of isocyanate-functional polymers containing a termi

1981-12-07

1984-03-13

Henderson, C. A.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526224, 526312, C08F 206, C08F 238

Patent

active

044368852

ABSTRACT:
Low molecular weight polydisperse isocyanate-functional acrylic polymers are prepared by direct reaction of the monomers, e.g., 2-isocyanatoethyl methacrylate and butyl acrylate, in the presence of a mercaptan chain-transfer agent and a polymerization initiator but in the substantial absence of water and of Lewis-type bases.

REFERENCES:
patent: 2471959 (1949-05-01), Hunt
patent: 2718516 (1955-09-01), Bortnick
patent: 3028367 (1962-04-01), O'Brien
patent: 3498943 (1970-03-01), Dannals
patent: 3579482 (1971-05-01), Brotherton
patent: 3632796 (1972-01-01), Holicky

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