Process for producing polyorganosiloxane with solid-acid...

Details Process for producing polyorganosiloxane with solid-acid... Process for producing polyorganosiloxane with solid-acid...

2005-09-27

2005-09-27

Price, Elvis O. (Department: 1621)

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

Organic compounds

Silicon containing

C556S406000, C556S426000, C556S427000, C556S429000, C556S451000, C556S453000, C556S455000, C556S459000, C556S460000, C556S464000

Reexamination Certificate

active

06949666

ABSTRACT:
The method for producing polyorganosiloxane from at least one type of organosilicon compound having a siloxane unit or alkoxysilane by the equilibrating reaction involving cleavage and recombination of the silicon-oxygen bond as a method carried out in the presence of an acidic catalyst capable of giving the product in high productivity and yield, corrosive to the system to a limited extent, and remaining in the product to a limited extent or degrading product quality to a limited extent if it remains, wherein a solid, acidic zirconium oxide catalyst is used as the acidic catalyst.

REFERENCES:
patent: 5708113 (1998-01-01), Beuschel et al.
patent: 5767216 (1998-06-01), Frances et al.
patent: 6107235 (2000-08-01), Matsuzawa
patent: 313095 (1989-04-01), None
patent: 728793 (1996-08-01), None
patent: 925830 (1999-06-01), None
Cover Sheet of WO 98/09727 A1, published Mar. 12, 1998./Cited in the International Search Report./Corresponds to USP 6107235 and EP 925830 A1.
Patent Abstracts of Japan No. 8-253589, published Oct. 1, 1996./Cited in the International Search Report./Corresponds to USP 5767216 and EP 728793 A1.
Patent Abstracts of Japan No. 7-278307, publsihed Oct. 24, 1995./Cited in the International Search Report.
Patent Abstracts of Japan No. 6-234856, published Aug. 23, 1994/Cited in the International Search Report.
Patent Abstracts of Japan No. 8-239476, published Sep. 17, 1996./Cited in the International Serach Report.
Patent Abstracts of Japan No. 2000-169486, published Jun. 20, 2000./Cited in the International Search Report.
Patent Abstracts of Japan No. 1-111709 published Apr. 28, 1989./Cited in the International Search Report./Corresponds to EP 313095 A2.
Patrial translation of Japanese Publication No. 10-502966 published Mar. 17, 1998./Cited in the International Search Report./Corresponds to USP 5708113 and WO 96/03455 A1.
Cover Sheet of WO 96/03455 A1, published Feb. 8, 1996./Corresponds to JP 10-502966.

Affiliated with

Also associated with

Rating

Process for producing polyorganosiloxane with solid-acid... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for producing polyorganosiloxane with solid-acid..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing polyorganosiloxane with solid-acid... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3448682