Cyclic disulfide compound, process of producing the same and...

Details Cyclic disulfide compound, process of producing the same and... Cyclic disulfide compound, process of producing the same and...

2006-02-07

2006-02-07

Lambkin, Deborah C. (Department: 1626)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C549S014000, C549S018000, C549S019000, C549S020000, C549S030000, C549S034000, C549S035000, C351S177000

Reexamination Certificate

active

06995276

ABSTRACT:
A compound capable of giving optical materials that may be high in both refractive index and Abbe's number and may be excellent in heat resistance and transparency, and a process that may produce the same with good efficiency are disclosed. The compound may be a cyclic disulfide compound including a structure represented by the following general formula (1) or (2) and having a sulfur content of from 50 to 85% by weight:wherein X represents a chain having carbon and/or sulfur as a skeleton, inclusive of cyclic ones; and the number of elements constituting X is from 1 to 4.

REFERENCES:
patent: 2715635 (1955-08-01), Davis
patent: 3278489 (1966-10-01), Bernstein et al.
patent: 3503758 (1970-03-01), Wada et al.
patent: 3631158 (1971-12-01), Esclamadon et al.
patent: 3719730 (1973-03-01), Hansley et al.
patent: 4284718 (1981-08-01), Bergthaller et al.
patent: 6770734 (2004-08-01), Tanaka et al.
patent: 270 081 (1989-07-01), None
patent: 0 435 306 (1991-07-01), None
patent: 0 530 757 (1993-03-01), None
patent: 0 562 966 (1993-09-01), None
patent: 0 742 244 (1996-11-01), None
patent: 0 785 194 (1997-07-01), None
patent: 0 803 504 (1997-10-01), None
patent: 0 942 027 (1999-09-01), None
patent: 1 046 931 (2000-10-01), None
patent: 1 602 277 (1970-11-01), None
patent: 58-164615 (1983-09-01), None
patent: 04-058489 (1985-10-01), None
patent: 02-270859 (1990-11-01), None
patent: 06-005323 (1991-10-01), None
patent: 05-148340 (1993-06-01), None
patent: 07-118390 (1995-05-01), None
patent: 09-071580 (1997-03-01), None
patent: 09-110979 (1997-04-01), None
patent: WO 98/35955 (1998-08-01), None
Tanaka et al, CA135:273668, 2001.
Yoshimura et al, CA136:158587, 2002.
Antropov et al, CA83:87408, 1975.
Yoshimura, Yuichi et al., “thio compounds, their compositions, optical materials as lenses having high refractive index, and their manufacture,” Jan. 8, 2003 (abstract).
Hallensleben, Manfred L., “Anionic copolymerization of cyclic disulfides with 2-nitropropene,”Makromolekulare Chemie, 175(11), pp. 3315-3317 (1974).
English language Patent Abstract of JP 2001-163875 (Jun. 19, 2001).
English language Patent Abstract of JP 2000-256435 (Sep. 19. 2000).
English language Patent Abstract of JP 07-118390 (May 9, 1995).
English language Patent Abstract of JP 2003-002889 (Jan. 8, 2003).
International Search Report dated Jun. 6, 2003.
Burns, John A., et al. “Predicting the stability of cyclic disulfides by molecular modeling: effective concentrations in thiol-disulfide interchange and the design of strongly reducing dithiols,”Journal of the American Chemical Society, 112(7), pp. 6296-6303 (1990) (abstract).
Joergensen, Flemming S., et al. “cis-Disulfides. Photoelectron spectrum of a 6,7-dithiabicyclo [3.2.1]octane”,Tetrahedron Letters, 24(3), pp. 319-322 (1983) (abstract).
Hallensleben, Manfred L., Copolymers from disulfide polymers and vinyl monomers by radical chains transfer,European Polymer Journal, 13(6), pp. 437-440 (1977) (abstract).
Chemical Concepts MS Database, Volatile Compounds in Food, 2ndEd., Chemical Concepts GmbH, pp. 1-35 (see p. 5) 1999.

Affiliated with

Also associated with

Rating

Cyclic disulfide compound, process of producing the same and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cyclic disulfide compound, process of producing the same and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cyclic disulfide compound, process of producing the same and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3700590