Aromatic hydrocarbon resins containing vinylketone groups and po

Details Aromatic hydrocarbon resins containing vinylketone groups and po Aromatic hydrocarbon resins containing vinylketone groups and po

1984-06-06

1985-04-30

Seccuro, Carman J.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525210, 525299, 525300, 525 75, C08L 2516, C08L 2504, C08F29300, C08F29900

Patent

active

045145423

ABSTRACT:
Aromatic hydrocarbon resins having a number-average molecular weight of 500-2,500 and containing, in particular, units derived from styrene and/or from its higher homologs, are acylated with vinylketone groups RR'C.dbd.CR"--CO-- grafted onto the aromatic nuclei of the said resin, said resin further containing from 10 to 90 mol %, and preferably from 30 to 60 mol %, of units derived from indene and/or from its higher homologs, and containing from 0.02 to 0.07 grafted vinylketone group per aromatic nucleus.
The resultant acylated resins are either polymerized anionically to polymers having a weight-average molecular weight ranging from 10.sup.4 to 2.10.sup.7, or are copolymerized with a living polymer such as polymethyl methacrylate.

REFERENCES:
patent: 2566302 (1951-09-01), Allen et al.
patent: 3219644 (1965-11-01), Leavitt
patent: 3223679 (1965-12-01), Leavitt
patent: 4100336 (1978-07-01), Yax et al.

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