Patent Number: 7,709,583

Title: Sulfur-containing cyclic olefin resin and its production method

Abstract: A sulfur-containing cyclic olefin resin comprising a unit represented by the following general formula (1) and having a weight average molecular weight of from 1,000 to 1,000,000. ##STR00001## (Here, R.sub.1 to R.sub.6 each independently represents a hydrogen atom, an alkyl group having from 1 to 20 carbon atoms, an aralkyl group having from 1 to 20 carbon atoms, an aromatic group having from 1 to 20 carbon atoms, a cyano group, an alkoxy group having from 1 to 10 carbon atoms or a heterocyclic compound, further R.sub.3 to R.sub.6 may be a halogen atom, R.sub.3 and R.sub.4, and R.sub.5 and R.sub.6 may form a ring containing carbon, oxygen, sulfur or nitrogen, R.sub.7 and R.sub.8' each independently represents a hydrogen atom or a methyl group, . . . represents a single bond or a double bond, and l and m each is 0 or 1.)

Inventors: Okada; Takashi (Kuwana, JP), Yamamoto; Toshihide (Yokkaichi, JP), Yamakawa; Hiroshi (Yokkaichi, JP)

Assignee: Tosoh Corporation

International Classification: C08G 75/00 (20060101)

Expiration Date: 5/04/12018