Process for preparing elastomers for pressure-sensitive adhesive

Details Process for preparing elastomers for pressure-sensitive adhesive Process for preparing elastomers for pressure-sensitive adhesive

1976-12-29

1978-02-07

Holler, Alan

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526 77, 526136, 526141, 526290, 526337, C08F 470, C08F24000

Patent

active

040728080

ABSTRACT:
A process for producing an elastomer comprising selected copolymerized C.sub.5 -hydrocarbons from a hydrocarbon mixture containing C.sub.5 -monoolefinic hydrocarbons, C.sub.5 -diolefinic hydrocarbons (cyclic and acyclic) C.sub.5 -paraffins, C.sub.6 -aliphatics and benzene which comprises separating the C.sub.5 -hydrocarbons from the mixture and copolymerizing a selected portion of the resulting C.sub.5 -hydrocarbon mixture in the presence of a catalyst system to form an elastomer. The elastomers produced are suitable for use in adhesive compositions in general but particularly useful as a component in pressure sensitive adhesive compositions.

REFERENCES:
patent: 2753325 (1956-07-01), Banes et al.
patent: 3565875 (1971-02-01), Bozik et al.
patent: 3678022 (1972-07-01), Bozik et al.
patent: 3817953 (1974-06-01), Younger
patent: 3855187 (1974-12-01), Winkler et al.
patent: 3880820 (1975-04-01), Sato
patent: 3905948 (1975-09-01), Vargiu et al.

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