Light colored, aromatic-modified piperylene resins

Details Light colored, aromatic-modified piperylene resins Light colored, aromatic-modified piperylene resins

1991-06-07

1993-01-05

Bleutge, John C.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526237, 526290, C08F 200

Patent

active

051771632

ABSTRACT:
A tackifier resin is prepared by polymerizing a monomer mixture of 10-70% piperylene concentrate and 30-90% of a vinyl aromatic monomer in the presence of a boron trifluoride catalyst and an inert diluent. The resin is water white in color, has a Gardner number of less than one, a softening point of 60.degree. to 120.degree. C. and a polydispersity of 1 to 5. The tackifier is used in formulations based on EVA, block copolymers and polyolefins for hot melt and pressure sensitive adhesive applications.

REFERENCES:
patent: 3963653 (1976-06-01), Katayama et al.
patent: 4933409 (1990-06-01), Evans et al.
Chemical Abstracts, vol. 86, No. 12; Mar. 21, 1977; Abstract No. 74595V.

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