Liquid aliphatic resins

Details Liquid aliphatic resins Liquid aliphatic resins

1986-12-01

1990-02-20

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526237, 526339, 526 76, 585508, C08F 3604

Patent

active

049027662

ABSTRACT:
A light color aliphatic hydrocarbon petroleum resin including a piperylene component and a chain transfer agent component useful as a tackifying agent, especially with copolymers. The resin of the invention has a softening point of about 0.degree.-40.degree. C., a number average molecular weight of from 100 to about 900, a low Gardner color of about 3 or less, and is formed by the aluminum chloride catalyzed polymerization of a feed stream essentially free of butadiene.

REFERENCES:
patent: 3692756 (1972-09-01), St. Cyr
patent: 3784530 (1974-01-01), Osborn
patent: 3865797 (1975-02-01), Joy
patent: 4038346 (1977-07-01), Feeney
patent: 4060503 (1977-11-01), Feeney
patent: 4098983 (1978-07-01), Osborn
patent: 4157363 (1979-06-01), Hepworth
patent: 4230842 (1980-10-01), Bullard
patent: 4358574 (1982-11-01), Hughes
patent: 4391961 (1983-07-01), Small
patent: 4677176 (1987-06-01), Evans et al.

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