Storage stable heat curable organosiloxane compositions containi

Details Storage stable heat curable organosiloxane compositions containi Storage stable heat curable organosiloxane compositions containi

1991-03-21

1991-12-31

Garvin, Patrick P.

Catalyst, solid sorbent, or support therefor: product or process

Irradiation by, or application of, electrical, magnetic or...

502159, 502172, 502522, B01J 3734

Patent

active

050772490

ABSTRACT:
The present invention provides microencapsulated liquid or solubilized curing catalysts for one-part heat curable organosiloxane compositions. Compositions containing these exhibit long-term storage stability yet cure rapidly when heated above the melting point of the encapsulating polymer. At least a portion of these microcapsules are less than one micron in diameter, and substantially all are less than about three microns in diameter. Compositions containing the preferred platinum group metals as catalysts are optically transparent.
The microencapsulated curing catalysts of this invention are prepared by the photoinitiated polymerization of at least one solubilized hydroxyl-containing ethylenically unsaturated organic compound in the presence of a photoinitiator for the polymerization of said compound, an optional surfactant, and a liquid or solubilized curing catalyst for organosiloxane compositions. The curing agent is in the form of a coordination complex with an ethylenically or acetylenically unsaturated organic compound and the solvent for the polymerization reaction is a mono- or polyhydric alcohol.

REFERENCES:
patent: 4421903 (1983-12-01), Ashby
patent: 4874667 (1989-10-01), Lee et al.

Affiliated with

Also associated with

Rating

Storage stable heat curable organosiloxane compositions containi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Storage stable heat curable organosiloxane compositions containi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Storage stable heat curable organosiloxane compositions containi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1510079