Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From sulfur-containing reactant
Reexamination Certificate
2008-04-08
2008-04-08
Feely, Michael J. (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From sulfur-containing reactant
C528S403000, C525S523000, C525S535000
Reexamination Certificate
active
10506033
ABSTRACT:
A polymerizable composition and a manufacturing method thereof are provided, in which the composition is capable of meeting requirements of overcoming decrease in production yield of a resin composed of a thioepoxy compound, the decrease being caused by variations in refractive index, hue, and optical strain.In a polymerizable composition containing a compound having at least one structure represented by the above formula (where R1represents a hydrocarbon having 1 to 10 carbon atoms, R2, R3, and R4each represent a hydrocarbon group having 1 to 10 carbon atoms or a hydrogen atom.), the total of a thioepoxy compound A, which has at least one structure represented by formula (2) and at least one structure represented by formula (3), and a thioepoxy compound B, which has at least one structure represented by formula (4) and at least one structure represented by formula (3), is 4 mass percent or less with respect to the total mass of the polymerizable composition.
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Machine translation of JP 2001-163873, provided by the JPO website.
Machine translation of JP 2001-163872, provided by the JPO website.
Bonnans-Plaisance et al., “Functional polythiiranes: 3. Synthesis and characterization of polythiiranes containing biphenyl units in the side chain,”Polymer, 1993, pp. 2003-2006, vol. 34, No. 9, Butterworth-Heinemann Ltd. XP-002345197.
Kawato Nobuo
Kobayashi Seiichi
Morijiri Hiroyuki
Ryu Akinori
Shimakawa Chitoshi
Buchanan & Ingersoll & Rooney PC
Feely Michael J.
Mitsui Chemicals Inc.
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