Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1991-01-31
1992-11-17
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526169, 525338, 5253261, 5253267, 5253274, 5253289, 5253295, C08F23200
Patent
active
051644690
ABSTRACT:
A transparent resin material consisting of a hydrogenation product of a (co)polymer obtained by subjecting at least one compound represented by general formula (I) or a combination of at least 5% by weight of said compound and 95% by weight or less of other copolymerizable cyclic olefin monomer to metathesis polymerization: ##STR1## wherein A and B are independently hydrogen atoms or C.sub.1-10 hydrocarbon groups; and X and Y are independently hydrogen atoms, C.sub.1-10 hydrocarbon groups, --C(CH.sub.2).sub.n COOR.sup.1 groups or --(CH.sub.2).sub.n OCOR.sup.1 groups [R.sup.1 is a C.sub.1-20 hydrocarbon group and n is 0 or an integer of 1-10] with the proviso that at least one of X and Y is selected from the above --(CH.sub.2).sub.n COOR.sup.1 and --(CH.sub.2).sub.n OCOR.sup.1 groups. Said transparent resin material is moldable and has sufficient optical properties, low hygroscopicity, good heat resistance and excellent adhesion to recording layer.
REFERENCES:
patent: 4068063 (1978-01-01), Ikeda et al.
Goto Kohei
Hisatomi Masao
Iio Akira
Komiya Zen
Oka Hiroshi
Japan Synthetic Rubber Co. Ltd.
Schofer Joseph L.
Walker Alex H.
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