Method for preparing resin having light color

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

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526 75, 526237, 526280, 526281, 526282, 526283, 526290, 585251, 585271, C08F 3204, C08F 3208

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active

049084208

ABSTRACT:
A method for preparing a resin having light color comprises the steps of: hydrogenating a compound represented by the formula (1) ##STR1## wherein l, m and n are integers of 0.ltoreq.l.ltoreq.3, 0.ltoreq.m.ltoreq.8 and l.ltoreq.n.ltoreq.3, respectively, and R.sup.1 and R.sup.6 each represent a hydrogen atom or a hydrocarbon residue having 1 to 3 carbon atoms, with or without R.sup.5 and R.sup.6 forming a ring, in the presence of a Ziegler catalyst containing a transition metal compound of the groups IV to VI of the Periodic Table and an organometallic compound of the groups I to III of the Periodic Table in combination to obtain a norbornene compound represented by the formula (2) ##STR2## wherein l, m, n and R.sup.1 and R.sup.6 are the same as above; and polymerizing the norbornene compound to give the resin having light color.

REFERENCES:
patent: 3629221 (1971-12-01), Arakawa et al.
patent: 3784481 (1974-01-01), Lassau et al.
patent: 4204081 (1980-05-01), Menapace
patent: 4533700 (1985-08-01), Mizui et al.

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