Preparation of carbonyl functional polysiloxanes

Details Preparation of carbonyl functional polysiloxanes Preparation of carbonyl functional polysiloxanes

1997-03-06

1998-04-14

Marquis, Melvyn I.

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

Synthetic resins

From silicon reactant having at least one...

528 14, 528 15, 528 18, 528 19, 528 21, 528 23, 528 25, 556436, 556450, C08G 7720

Patent

active

057392463

ABSTRACT:
Polysiloxanes having pendant and/or telechelic carbonyl functionality, i.e., aldehyde functionality .tbd.Si--R--CH.dbd.O or ketone functionality .tbd.Si--R--CR.dbd.O, are manufactured in high yield by ozonolysis of polydiorganosiloxanes containing alkenyl groups, followed by treatment with a reducing agent such as zinc and acetic acid. The process is relatively fast and economical using readily available starting materials such as hexenyl-functional polymers. In particular, aldehyde functionality on the polymer can be used as a polymeric crosslinking agent.

REFERENCES:
patent: 2588083 (1952-03-01), Burkhard
patent: 2591736 (1952-04-01), Sommer
patent: 3145232 (1964-08-01), Thompson
patent: 3202704 (1965-08-01), Perry
patent: 3344104 (1967-09-01), Hyde
patent: 4609574 (1986-09-01), Keryk
patent: 5021601 (1991-06-01), Frances et al.
patent: 5215554 (1993-06-01), Kramer et al.
Russian Chemical Reviews, vol. 36, No. 4, pp. 284-294, Apr. 1967.
Journal Americal Chemical Society, vol. 72, pp. 1935-1939, May 1950.
Z. Chem., 5, Jg, Heft 3, pp. 97-103, 1965.
Organic Chemistry, Prentice Hall, pp. 315-316, 1987.
Journal American Chemical Society, vol. 113, pp. 8168-8169, 1991.
Journal American Chemical Society, vol. 79, pp. 3073-3077, Jun. 1957.
Journal Organic Chemistry, vol. 35, No. 12, pp. 4180-4183, 1970.
Journal Organic Chemistry, vol. 23, pp. 627-628, Apr. 1958.
Journal Organic Chemistry, vol. 24, pp. 427-428, Mar. 1959.
F. Asinger, Ber., Jahrg. 75, 656-660, 1942.
Chemical Reviews, vol. 27, No. 3, pp. 437-493, Dec. 1940.
Chemical Reviews, vol. 58, No. 5, pp. 925-1010, Oct. 1958.
Journal Organic Chemistry, vol. 35, No. 11, pp. 3879+, 1970.
Bulletin of the Academy of Sciences, USSR, Division of Chemical Science, No. 8, pp. 1405-1407, Aug. 1966.
Journal of General Chemistry of the USSR, vol. 38, No. 10, pp. 2234-2236, Oct. 1968.
Journal of General Chemistry of the USSR, vol. 38, No. 2, pp. 380-385, Feb. 1968.

Affiliated with

Also associated with

Rating

Preparation of carbonyl functional polysiloxanes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Preparation of carbonyl functional polysiloxanes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of carbonyl functional polysiloxanes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-635636