Manufacture of moisture curable organosiloxane compositions

Details Manufacture of moisture curable organosiloxane compositions Manufacture of moisture curable organosiloxane compositions

1992-01-21

1993-07-13

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

264101, 26421124, 26433111, 264347, 366 75, 425203, 425204, 425205, 425208, 524860, B29C 4774

Patent

active

052271110

ABSTRACT:
The specification is concerned with a process and apparatus for continuous manufacture of moisture curable silicone compositions. The procedure involves continuously introducing to the first mixing zone of a screw-extruder device the ingredients of a moisture curable organosiloxane composition containing a silanol-terminated polyorganosiloxane containing an least two silanol groups per molecule, a curing agent consisting of at least one silane containing at least 3 alkoxy groups per molecule, and a catalyst for the curing reaction which takes place in presence of moisture, subjecting the ingredients to the mixing and transporting action of the screw of the screw-extruder device for a period of time to effect mixing to homogeneity of the ingredients in the mixture, passing the mixture through a residence zone in which the mixture is not subjected to the mixing action of the screw of the screw-extruder device and in which residence zone the mixture is permitted to react for a period of time and transporting the composition through a second mixing zone from which volatile materials are exhausted from the mixture and extruding the mixture into storage containers.

REFERENCES:
patent: 3960802 (1976-06-01), Beers et al.
patent: 4371682 (1983-02-01), Hashimoto
patent: 4431311 (1984-02-01), Kolossow
patent: 4528156 (1985-07-01), Fukuda et al.
patent: 4528324 (1985-07-01), Chung et al.
patent: 4649005 (1987-03-01), Kobayashi et al.
patent: 4696970 (1987-09-01), Sumimura et al.
patent: 4730935 (1988-03-01), Kolossow
patent: 4897236 (1990-01-01), Rabiger et al.

Affiliated with

Also associated with

Rating

Manufacture of moisture curable organosiloxane compositions does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2310009