Process for producing plastic lens and plastic lens

Details Process for producing plastic lens and plastic lens Process for producing plastic lens and plastic lens

2006-09-05

2006-09-05

Gorr, Rachel (Department: 1711)

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

C524S420000, C524S742000, C525S535000, C351S159000, C428S423100, C427S162000

Reexamination Certificate

active

07101953

ABSTRACT:
A process for producing plastic lenses, having higher refractive index and Abbe's number without remarkably deteriorating basic physical properties such as mechanical strength, impact resistance and transparency, and plastic lenses. The process comprises mixing 1) a prepolymer with 2) a mixture comprising sulfur in an epithio group-containing compound and 3) a catalyst.

REFERENCES:
patent: 2003/0225202 (2003-12-01), Kosaka
patent: 2004/0122201 (2004-06-01), Yoshimura et al.
patent: 1 046 931 (2000-10-01), None
patent: 1 046 931 (2000-10-01), None
patent: 1 099 721 (2001-05-01), None
patent: 1 134 242 (2001-09-01), None
patent: 2001-002783 (2001-01-01), None
patent: 2001-002933 (2001-01-01), None
patent: 2001-330701 (2001-11-01), None
patent: 2002122701 (2002-04-01), None
International Search Report dated Jul. 23, 2003.
International Search Report dated Jul. 23, 2003.

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