Methods for making polydiorganosiloxane microemulsions

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

524837, 252312, 252314, C08J 506, C08K 506, C08L 8307

Patent

active

058177140

ABSTRACT:
A novel method for making stable aqueous microemulsions of high molecular weight polydiorganosiloxanes which comprises sequentially adding at an effective rate a standard emulsion comprised of polydiorganosiloxane precursor, surfactant, and water to a polymerization catalyst medium while mixing to form a clear, stable aqueous microemulsion of polydiorganosiloxane.

REFERENCES:
patent: 2755194 (1956-07-01), Volkmann et al.
patent: 2891920 (1959-06-01), Hyde et al.
patent: 3294725 (1966-12-01), Findlay et al.
patent: 3433780 (1969-03-01), Cekada et al.
patent: 3975294 (1976-08-01), Dumoulin
patent: 4052331 (1977-10-01), Dumoulin
patent: 4146499 (1979-03-01), Rosano et al.
patent: 4228054 (1980-10-01), Ona et al.
patent: 4380503 (1983-04-01), Koerner et al.
patent: 4472291 (1984-09-01), Rosano
patent: 4529758 (1985-07-01), Traver
patent: 4620878 (1986-11-01), Gee
patent: 4784665 (1988-11-01), Ona et al.
patent: 4824877 (1989-04-01), Glover et al.
patent: 4842766 (1989-06-01), Blehm et al.
patent: 4935464 (1990-06-01), Ona et al.
patent: 4999398 (1991-03-01), Graicer et al.
patent: 5106900 (1992-04-01), Hellstern et al.
Bey et al., "The Mechanisms of the Anionic Emulsion Polymerization of Permethylcyclosiloxanes", Polym. Prepr., Amer. Chem. Soc., Div. polym. Chem., 11 (2),pp. 995-996, (1970).
Weyenberg et al., "Anionic Emulsion Polymerization of Siloxanes", Polym. Prepr., Amer. Chem. Soc., Div. Polym. Chem., 7(2), pp. 562-568, (1966).
Milton J. Rosen, Surfactants and Interfacial Phenomena, (John Wiley & Sons, New York, 1978) p. 224.
Rosen, M.J., "Surfactants & Interfacial Phenomena", (John Wiley & Sons, N.Y. 1978) pp. 224-226.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Methods for making polydiorganosiloxane microemulsions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods for making polydiorganosiloxane microemulsions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods for making polydiorganosiloxane microemulsions will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-77894

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.