Aqueous dispersion, internally silylated and dispersed polyureth

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

528 26, 528 28, C08G 1838

Patent

active

045672288

ABSTRACT:
An aqueous dispersible, isocyanate-containing polymer or prepolymer or chain extended polymer is provided which has internal pendant, reactable silane groups and which can also have internal dispersing aids. The aqueous dispersible, isocyanate-containing polymer, prepolymer, or chain extended polymer produces an aqueous dispersion of a polyurethane polymer having pendant reactable siliconate anions. The isocyanate-containing polymer is prepared from polyisocyanates, organic compounds with at least 2 active hydrogens, and organosilane which is at least monofunctional in reaction with isocyanate groups on at least one organic moiety of the organosilane. The organosilane also may have hydrolyzed or hydrolyzable groups associated with the silicone atom. The prepolymer is formed at temperatures less than 200.degree. C. at atmospheric pressure in a one shot or two step process. The polymer is combined with water to form an oil-in-water dispersion, and, if it is a prepolymer, the molecular weight is increased through chain extension. The pH of the aqueous dispersion of the polyurethane is maintained at least around 7 when the silyl concentration of the polymer is greater than 0.1 weight percent of the water in the dispersion. The aqueous dispersion can also be prepared from a prepolymer that is devoid of any organosilane used as a comonomer and where the prepolymer is dispersed and chain-extended with the difunctional organo silane. The aqueous dispersion of the polyurethane resin is used in coating myriad substrates such as inorganic oxide substrates.

REFERENCES:
patent: 2968575 (1961-01-01), Mallonnee
patent: 3479310 (1969-11-01), Dieterich et al.
patent: 3522142 (1970-07-01), Wismer et al.
patent: 3627722 (1971-12-01), Seiter
patent: 3632557 (1972-01-01), Brode et al.
patent: 3711445 (1973-01-01), Chu et al.
patent: 3870684 (1975-03-01), Witt et al.
patent: 3886226 (1975-05-01), Asai et al.
patent: 3903052 (1975-09-01), Wagner et al.
patent: 3905929 (1975-09-01), Noll
patent: 3919351 (1975-11-01), Chang et al.
patent: 3920598 (1975-11-01), Reiff et al.
patent: 3935146 (1976-01-01), Noll et al.
patent: 3940542 (1976-02-01), Knopf et al.
patent: 3941733 (1976-03-01), Chang
patent: 3947426 (1976-03-01), Lander
patent: 3951897 (1976-04-01), Matsuda et al.
patent: 3979344 (1976-09-01), Bryant et al.
patent: 4031120 (1977-06-01), Gervase
patent: 4046729 (1977-09-01), Scriven et al.
patent: 4066591 (1978-01-01), Scriven et al.
patent: 4067844 (1978-01-01), Barron et al.
patent: 4092286 (1978-05-01), Noll et al.
patent: 4093673 (1978-06-01), Chang et al.
patent: 4146585 (1979-03-01), Ward et al.
patent: 4147679 (1979-04-01), Scriven et al.
patent: 4157321 (1979-06-01), Kawakami et al.
patent: 4190566 (1980-02-01), Noll et al.
patent: 4203883 (1980-05-01), Hangauer, Jr.
patent: 4229925 (1980-09-01), Bryant et al.
patent: 4237264 (1980-12-01), Noll et al.
patent: 4238378 (1980-12-01), Markusch et al.
patent: 4269748 (1981-05-01), Nachtkamp et al.
patent: 4271229 (1981-06-01), Temple
patent: 4289672 (1981-09-01), Friederich et al.
patent: 4292226 (1981-09-01), Wenzel et al.
patent: 4293474 (1981-10-01), Dieterich et al.
patent: 4293679 (1981-10-01), Cogliano
patent: 4303774 (1981-12-01), Nachtkamp et al.
patent: 4345053 (1982-08-01), Rizk et al.
patent: 4374237 (1983-02-01), Berger et al.
patent: 4408008 (1983-10-01), Markusch
patent: 4413086 (1983-11-01), Chang et al.
patent: 4430486 (1984-02-01), Chang et al.
Silane Coupling Agents, by Edwin P. Plueddemann, Plenum Press, New York.
Aqueous Emulsions, Dispersions and Solutions of Polyurethanes; Synthesis and Properties, by D. Dieterich, Progress in Organic Coatings, Elsevier 1981.

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

Aqueous dispersion, internally silylated and dispersed polyureth does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Aqueous dispersion, internally silylated and dispersed polyureth, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aqueous dispersion, internally silylated and dispersed polyureth will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1306698

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