Plastic and nonmetallic article shaping or treating: processes – Carbonizing to form article – Agglomeration or accretion
Patent
1980-11-28
1982-12-07
Thurlow, Jeffery R.
Plastic and nonmetallic article shaping or treating: processes
Carbonizing to form article
Agglomeration or accretion
20415913, 264 83, 2642096, 264347, 528 21, C08G 7738, B29C 2500
Patent
active
043626742
ABSTRACT:
A process for making radiation cured silicone rubber articles is disclosed wherein a hydroxyl-terminated polysiloxane having a molecular weight from about 50,000 to about 2,000,000, optionally modified by mixing with up to 85% of an end-stopped silicone rubber, is mixed with from about 10 to about 70 parts per hundred of rubber of a finely divided silica filler with a particle size in the reinforcing range and other inlet fillers as determined by desired final properties; the composition so prepared is formed into the desired shape at room temperature; the article so formed is precured to improve the mechanical properties of the material with which it is made by exposure to ammonia gas, ammonium hydroxide, or to the vapors or solutions of a volatile amine at room temperature; and the precured article is irradiated with high energy electrons or gamma radiation to effect a permanent cure of the material from which the article is formed.
REFERENCES:
patent: 2657149 (1953-10-01), Iler
patent: 2708289 (1955-05-01), Collings
patent: 2763609 (1956-09-01), Lewis et al.
patent: 3065158 (1962-11-01), Zack
patent: 3179546 (1965-04-01), Fisher
patent: 3405204 (1968-10-01), McCormack
patent: 3453357 (1969-07-01), Logan, Jr.
patent: 3819772 (1974-06-01), Kolobow
DuPont John G.
Goodwin Paul A.
High Voltage Engineering Corporation
Nields Henry C.
Thurlow Jeffery R.
LandOfFree
Process for making radiation cured silicone rubber articles does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for making radiation cured silicone rubber articles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for making radiation cured silicone rubber articles will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1902700